Curis
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

FOR ANNUAL AND TRANSITION REPORTS PURSUANT TO
SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

(Mark one)
[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2001
OR
[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Commission File Number 000-30347

CURIS, INC.
(Exact Name of Registrant as Specified in Its Charter)

DELAWARE 04-3505116
(State or Other Jurisdiction of (I.R.S.Employer Identification No.)
Incorporation or Organization)

61 Moulton Street
Cambridge, Massachusetts 02138
(Address of Principal Executive Offices, Including Zip Code)

617-503-6500
(Registrant's Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act: None
Securities registered pursuant to Section 12(g) of the Act: Common Stock,
$0.01 par value per share

Indicate by check mark whether the Registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X] No [__]

Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to
the best of Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. [X]

As of March 20, 2002, the aggregate market value of the Common Stock held
by non-affiliates of the Registrant was approximately $79,425,536 based on the
closing sale price of $2.51 of the Registrant's Common Stock on the Nasdaq
National Market on such date.

As of March 20, 2002, 32,329,228 shares of the Registrant's Common Stock
were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The Registrant's definitive proxy statement to be issued in conjunction
with the Annual Meeting of Stockholders to be held on June 12, 2002 has been
incorporated by reference, in whole or in part, into Part III of this Annual
Report on Form 10-K.
CURIS, INC.
TABLE OF CONTENTS

Form 10-K

PART I

ITEM 1. BUSINESS ............................................................3
ITEM 2. PROPERTIES..........................................................14
ITEM 3. LEGAL PROCEEDINGS...................................................14
ITEM 4 SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.................15
EXECUTIVE OFFICERS OF THE REGISTRANT................................15

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED
STOCKHOLDERS MATTERS................................................16
ITEM 6. SELECTED FINANCIAL DATA.............................................17
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS...........................................18
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK..........40
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.........................40
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
AND FINANCIAL DISCLOSURE............................................40

PART III

ITEM 10 DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT..................41
ITEM 11. EXECUTIVE COMPENSATION..............................................41
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT......41
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS......................41

PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K....42
SIGNATURES..........................................................43

FORWARD-LOOKING INFORMATION

This Annual Report contains forward-looking statements within the meaning of
Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A
of the Securities Act of 1933, as amended. For this purpose, any statements
contained herein that are not statements of historical fact may be deemed to be
forward-looking statements. Without limiting the foregoing, the words
"believes," "anticipates," "plans," "expects," and similar expressions are
intended to identify forward-looking statements. Although we believe that the
expectations reflected in the forward-looking statements contained herein are
reasonable, there can be no assurance that such expectations or any of the
forward-looking statements will prove to be correct, and actual results could
differ materially from those projected or assumed in the forward-looking
statements. Our future financial condition and results of operations, as well
as any forward-looking statements, are subject to inherent risks and
uncertainties, including the factors set forth under the caption "Risk Factors"
Item 7. All forward-looking statements and reasons why our results may differ
included in this Annual Report are made as of the date hereof, and we assume no
obligation to update these forward-looking statements or reasons why actual
results might differ.

As used in this Annual Report, the terms "we," "us," "our," the "Company" and
"Curis" shall mean Curis, Inc.

Curis, Chondrogel and Vascugel are our trademarks. All other trademarks or
trade names referred to in this Annual Report are the property of their
respective owners.

2
PART I

ITEM 1. BUSINESS

GENERAL

We are engaged in the discovery of drug targets and the development of
therapeutics based upon the pathways used by the body which control
proliferation and differentiation and, therefore, tissue formation, maintenance
and repair. We have identified key regulators responsible for turning on the
mechanisms for tissue repair in response to trauma, injury or disease. We
believe this approach has been validated with the approval of OP-1 Implant for
bone repair in four major markets (United States Humanitarian Device Exemption,
Europe, Australia and Canada). Independently and in strategic alliances, we are
focusing our research efforts on identifying and elucidating key regulators of
tissue repair having application for diseases such as kidney disease, cancer and
neurological disorders, which we believe represent large market opportunities
that are underserved by current therapeutic alternatives.

In the first quarter of 2002, we announced a realignment of our research
and development programs and a re-focusing of our resources on our proprietary
signaling pathways and stem cell technologies, including the Bone Morphogenic
Protein (BMP) and the Hedgehog (Hh) family of product candidates. As part of
the realignment, we suspended clinical development efforts for Vascugel in
coronary artery disease based on the cost of further clinical development for
cell-based therapies, and we will seek a partner before continuing further
development of this product opportunity. We also terminated clinical
development efforts for Chondrogel in vesicoureteral reflux due to the recent
approval and pricing of a competitive non-cell-based product. Further
development of Chondrogel for other indications will require the implementation
of partnering initiatives that are currently being evaluated. In addition, we
suspended our clinical IND program in oncology for basal cell carcinoma in
favor of developing an improved topical formulation and seeking a partnership
for re-entering clinical development.

As a result of the realignment, we have reduced our staff by 35 people and
lowered our annual net burn rate from approximately $40 million for 2001 to
approximately $26 million for 2002. In addition, we will spend approximately
$3.5 million in 2002 to effect the realignment and are in the process of
determining the additional non-cash charges in the first quarter of 2002 against
our tangible and intangible assets. See Notes 3(n) and 19 to Notes to
Consolidated Financial Statements and the Overview section of "Management's
Discussion and Analysis of Financial Condition and Results of Operations."

THE CURIS PARADIGM

We are working to develop therapies based on key signaling pathways for
conditions for which we believe there are no effective treatments currently on
the market and which represent major therapeutic markets. Our resources and
expertise in developmental biology, genomics and stem cells position us to take
advantage of the recent convergence of these disciplines to focus on key
signaling pathways. These pathways, which include BMPs and the Hedgehog
families of proteins, are important regulators of prenatal tissue development
and adult tissue growth and repair. We believe that we will be able to develop
product opportunities based on these pathways.

To further enhance product opportunities for our product pipeline, we use
stem cell research to identify and validate key signaling pathways that control
cell proliferation and differentiation. We believe that this approach will
accelerate the discovery of validated drug targets and ultimately drive down
the cost of developing new drugs.

3
THE BMP/OP-1 SIGNALING PATHWAY

The BMP family of master regulators orchestrates the development and repair
of bone and kidneys, and appears to play a role in the repair mechanisms of the
brain. OP-1 (osteogenic protein-1, also known as BMP-7), marketed by Stryker
Corporation and approved in four major markets for the repair of nonunion long
bone fractures, is a member of the BMP family of signaling proteins.

Stryker's approval of the OP-1 product validates our paradigm of developing
therapeutics that repair tissue from injury, degeneration and/or illness by
reactivating or enhancing the body's natural signaling and repair pathways. The
product is a formulation of BMP-7, which is applied at the site of a damaged
bone to accelerate the healing process. As individuals age, signaling proteins
such as OP-1 are diminished making healing more difficult. The OP-1 product
promotes more rapid and complete healing of bone in adults and may also be used
to fuse bone, such as is the case with spinal fusion. Stryker, pursuant to its
partnering arrangement with us in the orthopaedic market, is currently testing
OP-1 for additional orthopaedic indications, including spinal fusion.

Data from Stryker's human clinical trials has proven BMP-7 to be safe for
orthopaedic and dental indications. Therefore, the remaining hurdles to
approval of BMP-7 for additional indications outside of orthopaedics may be
lower than for molecules that have not been shown to be safe in human clinical
trials.

We are currently pursuing the development of product candidates based upon
BMP-7's potential for repair of damaged kidney tissue. In January 2002, a study,
conducted by our researchers and published in the journal Kidney International,
found that BMP-7 plays a significant role in the maintenance of a healthy kidney
in rodents. In this study, our scientists demonstrated that BMP-7 appears to
inhibit kidney inflammation and also appears to stimulate the production of
other molecules that promote normal blood flow to the kidney. Previously
published research has shown that in animal models of acute and chronic kidney
disease, treatment with BMP-7 appears to result in decreased inflammation,
improved function, and, most importantly, increased survival.

Based on preclinical data and the level of interest shown by potential
partners to jointly develop BMP-7, we hope to enter into a collaboration in 2002
for the development of BMP-7 for renal disease. Renal diseases affect a very
large population. The number of patients with life-threatening, end-stage renal
diseases has increased sharply in the past 30 years. It is estimated that more
than 400,000 people suffer from end-stage renal disease in the United States.
Each year, nearly 60,000 people in the United States die from causes related to
kidney failure. A product that is capable of treating acute and chronic kidney
failure would, therefore, have significant commercial potential.

THE HEDGEHOG FAMILY: SONIC, DESERT AND INDIAN

Our scientists and other researchers have shown that the Hedgehog (Hh)
family of proteins are key to the formation, maintenance and repair of a number
of tissues, including the nervous system and cartilage, as well as in the
control of blood vessel formation. Specifically, Sonic Hh (SHh) has been shown
to regulate blood vessel, central nervous system and hair development; Desert Hh
has been shown to affect peripheral nervous system development and function; and
Indian Hh has been shown to control the formation and growth of cartilage. We
are developing both protein and small molecule product candidates that
effectively activate these pathways.

In a February 2002 study published in Experimental Neurology, our
scientists and collaborators reported that SHh has been shown to reduce
behavioral impairment and dopaminergic nerve loss in preclinical models of
Parkinson's Disease. In addition, using rodent models of diabetic neuropathy (in
which the animal loses peripheral sensory and motor ability), scientists in the
United Kingdom have shown that SHh restores normal nerve function as measured by
nerve conduction velocity. This demonstrated improvement in function was
dose-dependent and improved both sensory and motor ability.

4
To our knowledge, this is the first time that there has been complete
restoration of both motor and sensory nerve function in an animal model of
diabetic neuropathy. We believe there are currently no effective treatments for
diabetic neuropathy.

We have identified small molecule compounds that appear to mimic the
effects of SHh. These compounds potentially represent drug candidates for
Parkinson's Disease and diabetic neuropathy that could be administered orally.
In July 2001, we entered into a partnership with Elan Corporation, plc, a
publicly held company headquartered in Dublin, Ireland ("Elan"), to develop Hh
agonists for the treatment of neurological disorders. In addition to defraying
costs, we believe that the partnership with Elan will enhance and accelerate
our ability to bring treatments into clinical development. Based on our
preclinical data, the initial therapeutic focus of our alliance with Elan will
be in the fields of Parkinson's Disease and diabetic neuropathy, two
indications representing large potential markets.

ONCOLOGY

Our scientists have discovered that the inappropriate upregulation of
certain signaling pathways, such as Hh, can lead to the growth of cancer in two
distinct ways. In the first way, the pathway is inappropriately activated
within a cell, which is similar to having a switch "stuck" in the "on"
position. Cancers caused by this mechanism result in cell dysregulation and
abnormal proliferation. Our scientists have generated small molecule inhibitors
that "unstick" or inhibit the "run away" pathway. Upon inhibition, our
scientists have observed that this class of cancer undergoes specific
programmed cell death or apoptosis. The cancers belonging to this class include
basal cell carcinoma, medulloblastoma, and bladder cancer.

In the second way, cancers inappropriately activate signaling pathways that
control the cell growth in surrounding tissue. This cell growth ultimately
provides essential nutrients required for tumor growth. In a study published in
2001, in Nature Medicine, Hh was demonstrated to be an important regulator of
new blood vessel growth. Most tumors, regardless of the mechanism by which they
form, need new blood vessels for food and oxygen if they are to grow and spread
(metastasize) throughout the body. Preclinical work performed by our scientists
suggests that switching off this pathway impedes tumor growth and
metastasization by depriving the cancer of critical growth factors, nutrients
and blood vessels.

In September of 2001, we received FDA approval to begin human clinical
testing of our first Hh antagonist in basal cell carcinoma, the most common
form of skin cancer. As a part of our realignment, we have suspended clinical
testing of the Hh agonist, which was formulated for administration by
intramuscular injection. We intend to reformulate the Hh antagonist as a
topical medication and will seek to identify a partner with expertise in
dermatology to help accelerate the development process and defray development
costs.

Based on the current level of interest expressed by potential partners and
the data we hope to generate in 2002, we believe that we may be able to enter
into a corporate partnership during the next twelve to eighteen months.

OP-1 OPPORTUNITIES WITH STRYKER CORPORATION

Several therapeutic products based upon OP-1 are currently in development
by Stryker as part of our commercial collaboration. The following table sets
forth the product development programs relating to OP-1:

Potential Application Development Status /(1)/
- --------------------- ----------------------
Orthopaedic Reconstruction and Dental Applications
Nonunion Fractures.......................... Approved in Australia,
Europe, U.S. under
HDE, and Canada
Fresh Fractures............................. Completed Phase III
Trial

5
Spinal Fusion...............................       Phase III Pivotal
Clinical Trial
initiated in the U.S.

Periodontal Disease.......................... Pilot Study Completed

- -----
/(1)/ "Pivotal Clinical Trials" are investigations conducted under an
Investigational Device Exemption (IDE) intended to be used as the primary
supporting documentation for regulatory approval of a new medical device.

Orthopaedic Reconstruction and Dental Applications

Stryker has developed and commercialized orthopaedic reconstruction and
dental therapy products using the OP-1 Implant, a powder mixture of OP-1 and a
highly purified Type I collagen matrix which is formed into a paste. Pursuant
to our commercial collaboration, Stryker has exclusive rights to develop,
manufacture and commercialize OP-1 products in the fields of orthopaedic
reconstruction and dental applications. Upon commercialization by Stryker of
OP-1 products in these fields, we will receive royalties based on Stryker's
commercial sales. We have retained our rights to OP-1 for all uses other than
orthopaedic reconstruction and dental applications. See "--Collaborative
Alliances and License Agreements--Agreements Relating to OP-1 -- Stryker
Corporation."

In June 1999, Stryker filed, and had accepted by the FDA, a Pre-Market
Approval (PMA) application for the OP-1 Implant. The following month, in July
1999, Stryker filed a Marketing Authorization Application (MAA) with the
European Medicines Evaluation Agency (EMEA) for certain OP-1 uses, which was
accepted for filing at that time. Stryker received a "Not Approvable" letter
from the FDA on January 29, 2001 that cited the failure of the pivotal clinical
trial to meet the study endpoint of non-inferiority of the OP-1 Implant compared
to the autograft control on a combined clinical and radiographic basis. In the
second quarter of 2001, Stryker received marketing approval for its OP-1 Implant
product in Australia and the European Union. The approved indication in
Australia is for the treatment of nonunion of long bone fractures secondary to
trauma for the purposes of initiating repair by new bone formation. The approved
indication in Europe is for tibial nonunions of nine-month duration, secondary
to trauma, in skeletally mature patients, in cases where previous treatment with
autograft has failed or use of autograft is unfeasible. In 2001, Stryker filed
an application for a Humanitarian Device Exemption (HDE) with the FDA which, in
the fourth quarter of 2001, resulted in Stryker being granted HDE status for
OP-1 Implant by the FDA. The approved indication in the U.S. is for use as an
alternative to autograft in recalcitrant long bone nonunions where use of
autograft is unfeasible and alternative treatments have failed. Under the HDE,
OP-1 Implant will be made available as a humanitarian device, defined by the FDA
as one intended to benefit patients by treating or diagnosing a disease or
condition that affects fewer than 4,000 individuals per year in the U.S. The
first commercial sales of OP-1 in Australia began in mid-May 2001 and the
commercial launch of OP-1 in select markets of the European Union began in
August 2001. The first sales of OP-1 in the U.S. under the HDE began in November
2001. In February 2002, Stryker received approval to market OP-1 Implant in
Canada for the clinical indication of long bone nonunions.

Stryker is also developing the use of OP-1 for other surgical indications
in addition to the approved limited trauma indications in certain markets. For
example, in 1999, Stryker began to enroll patients in a pilot investigational
device exemption (IDE) study for OP-1 in a spine indication. Enrollment in the
pilot study was completed in the first quarter of 2001. Stryker obtained
conditional approval for a pivotal trial in the U.S. and Canada for the same
indication in 2001. Enrollment in this pivotal trial commenced in December
2001. Stryker also has completed enrollment in a single-site clinical
feasibility study for a similar indication in Japan and is in the process of
submitting an application for a multicenter trial.


6
COLLABORATIVE ALLIANCES AND LICENSE AGREEMENTS

Our strategy for development and commercialization of products depends upon
the formation of collaborations and strategic alliances. These alliances are
designed to provide us with the requisite capital, as well as the necessary
preclinical and clinical development and manufacturing and marketing
capabilities to commercialize product candidates produced by our discovery and
preclinical programs. In evaluating possible strategic alliances, we consider
the following criteria:

. up-front payments in the form of license fees and equity investments;

. royalties and milestone payments;

. technology and patent rights; and

. scientific and development resources.

There can be no assurance that we will be able to establish the new
strategic alliances necessary to develop and commercialize our products, that
any future arrangements will be on terms favorable to us or that current or
future strategic alliances will be successful.

Agreements Relating to OP-1

Stryker. We have an agreement with Stryker for bone-inducing proteins
(OP-1) in the field of Orthopaedics. OP-1 was first isolated and characterized
by scientists at Creative BioMolecules, Inc., a predecessor of ours, as a part
of a collaboration with Stryker. In exchange for research funding, future
royalties and revenue from commercial manufacturing from Stryker, Creative
developed OP-1 as a therapy for orthopaedic reconstruction and cartilage
regeneration, and supplied Stryker material for use in clinical trials. In
November 1998, Creative restructured its collaboration agreement to provide
Stryker with the exclusive rights to manufacture OP-1 products in orthopaedic
reconstruction and cartilage regeneration. At the same time, Stryker acquired
Creative's commercial manufacturing operations. As a result, Stryker has the
exclusive right to develop, market, manufacture and sell products based on OP-1
proteins for use in orthopaedic reconstruction and dental therapies.

We have agreed not to undertake any BMP-related research, development or
commercialization of any products in the fields of orthopaedic reconstruction
and dental therapeutics, on our own behalf or for third parties, for the term
of certain patents to the extent that such activities utilize technology,
patents or certain personnel acquired from Creative in the merger. We have the
exclusive and irrevocable right to develop, market and sell products
incorporating morphogenic proteins developed under the research program,
including OP-1, for all uses and applications other than orthopaedic and dental
reconstruction. These applications include neurological diseases,
osteoporosis, renal disease and others. Subject to certain exceptions in
connection with the acquisition or merger of Stryker, Stryker has agreed not to
undertake any research, development or commercialization of any products in our
field (applications other than orthopaedic reconstruction and dental
therapies), on its own behalf or for third parties, for the term of those
patents. Each company has the right to grant licenses to third parties in their
respective fields, and each is obligated to pay royalties to the other on its
sales of such products and to share royalties received from licensees.

We maintain an exclusive license in our field under certain patents and
claims that were assigned to Stryker in November 1998 as part of the sale of
Creative's commercial manufacturing rights and assets.

Genetics Institute. We have a cross-license agreement with Stryker and
Genetics Institute, Inc., a wholly owned subsidiary of Wyeth Corporation. Each
party to the agreement has cross-licensed certain of its worldwide patent
rights to each of the other parties, royalty-free, in the bone
morphogenic/osteogenic protein family. The agreement allows the companies to
commercialize their respective lead compounds, which are now in clinical trials
for bone repair and regeneration, free of the risk of patent litigation among
the parties. Under the agreement, which covers both then issued patents and
pending patent applications, we and Stryker have exclusive rights to OP-1,
under both our and Genetics Institute's patents. Genetics Institute and
Yamanouchi Pharmaceutical Company, Ltd., its

7
collaborative partner in the worldwide development of certain bone growth
factors, have exclusive rights to BMP-2, their lead compound, under both their
own and each of our and Stryker's patents. In addition, each party has granted
to each other royalty-free, non- exclusive cross-licenses to patents and patent
applications covering certain other related morphogenic proteins. Neither we nor
Genetics Institute have any rights under the other party's patents and patent
applications to methods, devices or formulations directed towards specific uses
outside the fields of orthopedic and dental reconstruction and metabolic bone
diseases.

Aegera Therapeutics Inc.

We entered into a license and collaboration agreement, effective January
5, 2001, with Aegera Therapeutics Inc., a privately-held biotechnology company
headquartered in Montreal, Canada. This agreement provides us with an exclusive
worldwide license of Aegera's skin-derived, adult stem cell technologies
outside the field of ophthalmology. The agreement establishes a broad
collaboration to investigate the therapeutic potential of these technologies in
neurological, pancreatic and cardiovascular disorders. Research is being
conducted by us, Aegera and McGill University, Aegera's academic collaborator.
We believe that our expertise with stem cells, signaling factors and small
molecules, combined with Aegera's technologies, will represent a dynamic
development paradigm for innovative regenerative therapeutics.

AGY Therapeutics

On January 17, 2002, we announced that we entered into an agreement with
AGY Therapeutics, Inc., a privately-held biotechnology company headquartered in
San Francisco, California. Through this collaboration, the companies will
endeavor to discover and develop novel small molecule drugs from stem cells for
therapeutic, diagnostic and other applications relevant to neurodegenerative
diseases, diabetes, oncology, and central nervous system diseases. Under the
terms of the collaboration agreement, we will share our stem cell and
developmental biology expertise with AGY, who will apply its proprietary
imAGYne technology platform to identify, analyze and validate novel small
molecule targets. Products of this collaboration will be used by both companies
to further their own internal drug development programs, as well as in
partnerships with third parties.

Elan Corporation, plc

In July 2001, we formed a joint venture, Curis Newco, with affiliates of
Elan, for the purpose of researching and developing molecules that stimulate the
Hh signaling pathway. Curis Newco will focus upon the development of
therapeutics targeting a number of neurological disorders. In addition to
providing clinical expertise and support for the program, Neuralab, Ltd., an
affiliate of Elan, sold to Curis Newco a non-exclusive license to an important
animal model. At the time Curis Newco was formed, Elan International Services,
Ltd., an affiliate of Elan, purchased $4,000,000 of our common stock at $7.32
per share. Additionally, Elan Pharma International, Ltd., another affiliate of
Elan, agreed to provide funding, subject to Elan Pharma International's
continuing consent, for our share of Curis Newco's operating expenses through an
$8,010,000 line of credit which is evidenced by a convertible promissory note
issued by us.

EVOTEC Biosystems AG (formerly Oxford Assymetry International PLC)

We have renewed our contract services agreement with EVOTEC Biosystems AG
("EVOTEC") under which we have access to the EVOTEC chemical library and may
utilize EVOTEC to perform high throughput screening of small molecules that
regulate our proprietary developmental biology pathways. EVOTEC provides its
services on a contract basis, and we own the intellectual property relating to
small molecules discovered through these screening activities. The EVOTEC
contract activities have played an important role in the identification of small
molecules that regulate the Hh protein biological pathway and other pathways
that we are exploring.



8
Micromet AG

On June 29, 2001, we entered into a purchase and sale agreement with
Micromet AG pursuant to which we assigned our single-chain-polypeptide
technology to Micromet AG in exchange for certain consideration. Effective
December 31, 2001, we entered into a target research and license agreement and a
product development agreement with Micromet. These agreements will provide us
with royalties on Micromet's product revenues, if any, arising out of the
assigned technology, rights to jointly develop and commercialize future product
discoveries, if any, arising out of the product development agreement, and
exclusive access for us to Micromet's proprietary single cell analysis of gene
expression technology in the field of stem cell research. The product
development agreement provides us with the right but not the obligation to
jointly fund research to develop antibodies against up to four potential targets
through the proof of principle stage. We will also have the right, but not the
obligation, to jointly fund the development of two such antibody targets from
the proof of principle stage through the completion of Phase I Clinical Trials.

Academic Collaborations

We have relationships with a number of academic institutions and
investigators who are focused on areas of interest to us, including morphogenic
proteins and developmental biology. In these collaborations, we seek to expand
our scientific knowledge concerning internal research programs as well as the
activities and characteristics of various proteins under development by our
scientists. The academic collaborators are not our employees. As a result, we
have limited control over their activities and limited amounts of their time
are dedicated to our projects. From time to time, academic collaborators have
relationships with other commercial entities, some of which may be competitors
of ours. Although the precise nature of each relationship varies, the
collaborators and their primary affiliated institutions generally sign
agreements that provide for confidentiality of our proprietary technology and
results of studies. We seek to obtain exclusive rights to license developments
that may result from these studies; however, there is no guarantee that such
licenses can be obtained.

COMPETITION

The therapeutic products that we are developing would compete with existing
and new products being developed by others for treatment of the same
indications. Competition in the development of human therapeutics is
particularly intense and includes many large pharmaceutical and
biopharmaceutical companies, as well as specialized biotechnology and medical
device firms. Many of these companies have extensive financial, marketing and
human resource capacities, which may result in significant competition. Others
have extensive experience in undertaking clinical trials, in obtaining
regulatory approval to market products and in manufacturing on a large scale,
which may enhance their competitive position. In addition to competing with
pharmaceutical, biotechnology and medical device companies, the products we are
developing would also compete with those being developed by academic and
research institutions, government agencies and other public organizations. Any
of these organizations may discover new therapies, seek patent protection or
establish collaborative arrangements for products and technologies which are
competitive with our products and technologies.

The technology underlying the development of human therapeutic products is
expected to continue to undergo rapid and significant advancement and change.
In the future, our technological and commercial success will be based on our
ability to develop proprietary positions in key scientific areas and
efficiently evaluate potential product opportunities.

In addition to a product's patent position, efficacy and price, the timing
of a product's introduction may be a major factor in determining eventual
commercial success and profitability. Early entry may have important advantages
in gaining product acceptance and market share. Accordingly, the relative speed
with which we or our collaborative partners can complete preclinical and
clinical testing, obtain regulatory approvals, and supply commercial quantities
of a product is expected to have an important impact on our competitive
position, both in the United States and abroad. Other companies may succeed in
developing similar products that are introduced earlier, are more effective, or
are produced and

9
marketed more effectively. If any research and development by others renders
any of our products obsolete or noncompetitive, then our potential for success
and profitability may be limited.

We are aware that a number of companies are engaged in the research and
development of morphogenic proteins for the repair of bone and cartilage.
Genetics Institute, Inc. and its collaborative partners are pursuing the
development of bone morphogenic proteins for the repair of orthopaedic and other
skeletal defects. Genetics Institute has entered into relationships with
Yamanouchi Pharmaceuticals Co., Ltd. and Medtronic Sofamor Danek, Inc. covering
development and marketing of bone morphogenic proteins. Based upon clinical
results completed by Genetics Institute, American Home Products filed a PMA in
the United States for the indication of tibial fresh fractures. American Home
Products received a "not approvable" letter in 2001 based on problems with the
trial design. In 2001, a partner of Genetics Institute in the spine field,
Medtronic Sofamor Danek, filed a PMA for the use of rhBMP-2 in an interbody
fusion cage. Medtronic Sofamor Danek obtained a unanimous approval
recommendation from a FDA advisory panel in January 2002. This vote will likely
lead to FDA approval in the first half of 2002. This product is a combination of
a Medtronic LT Cage which is used with a collagen sponge soaked with bone
morphogenetic protein (rhBMP-2). A number of other companies currently provide
various other therapies, including allografts, bone fillers and electrical
stimulation devices for the treatment, repair or replacement of bone and joint
tissue. The Company believes that its OP-1 Implant, which is approved for
limited trauma indications in certain markets and is currently in clinical
trials for certain other indications, would ultimately compete with these
products and traditional therapies, such as autografts. Other companies may
attempt to develop products incorporating proteins purified from bone, which may
include BMPs, for orthopaedic applications. In addition, we believe that a
number of biopharmaceutical companies are developing other recombinant human
proteins, primarily growth factors, for use in the repair of bone and cartilage
defects and in other indications. Several other companies are pursuing
traditional therapies, including autografts, allografts and electrical
stimulation devices, as well as cell and gene therapies for the repair of bone
and cartilage defects, that may compete with our products.

We believe that any potential dental or periodontal products that Stryker
may develop will compete primarily with traditional therapies and therapies
incorporating other morphogenic proteins or growth factors. We are aware that
Genetics Institute also may be pursuing the development of BMPs for the repair
of dental and periodontal tissue.

Research in the field of developmental biology and genomics is highly
competitive. Competitors in the field of developmental biology include, among
others, Amgen, Inc., Chiron Corporation, Exelixis, Inc., Genentech, Inc., Geron
Corporation, and Regeneron Corporation, as well as other private companies and
major pharmaceutical companies. Competitors in the genomics area include, among
others, public companies such as Axys Pharmaceuticals, Inc., Genome
Therapeutics Corporation, Human Genome Sciences, Inc., Incyte Pharmaceuticals,
Inc., Millennium Pharmaceuticals, Inc. and Myriad Genetics, Inc., as well as
private companies and major pharmaceutical companies. We also compete with
universities and other research institutions, including those receiving funding
from the federally funded Human Genome Project. Our competitors may discover,
characterize and develop important inducing molecules or genes before we do,
which could have a material adverse effect on any of our related research
programs. We also face competition in gaining access to DNA samples used in our
research and development projects. We expect competition to intensify in
genomics research as technical advances in the field are made and become more
widely known.

We rely on or will rely on our strategic partners for support in our
disease research programs and may turn to our strategic partners for
preclinical evaluation and clinical development of our potential products and
manufacturing and marketing of any products. Some of our strategic partners are
conducting multiple product development efforts within each disease area that
is the subject of our strategic alliance with them. Our strategic alliance
agreements may not restrict the strategic partner from pursuing competing
internal development efforts. Any of our product candidates, therefore, may be
subject to competition with a potential product under development by a
strategic partner.

10
PATENTS AND PROPRIETARY RIGHTS

Our ability to commercialize our products and compete effectively with
other companies will depend, in part, on our ability to maintain proprietary
rights to our products and technology. We currently own or have rights to
approximately 125 issued and 171 pending patent applications in the United
States and have foreign counterpart patent filings for most of these patents
and patent applications. These patent applications are directed to
compositions of matter, methods of making and using these compositions, methods
of repairing, replacing, augmenting and creating tissue for multiple
applications, methods for drug screening and discovery, developmental
biological processes, and patents relating to our proprietary technologies. The
patent positions of pharmaceutical, biopharmaceutical, and biotechnology
companies, including us, are generally uncertain and involve complex legal and
factual questions. There can be no assurance that any of these pending patent
applications will result in issued patents, that we will develop additional
proprietary technologies or products that are patentable, that any of our
patents or those of our collaborative partners will provide a basis for
commercially viable products or will provide us with any competitive advantages
or will not be challenged by third parties, or that the patents of others will
not have an adverse effect on our ability to conduct our business.

Our success will depend in part on our ability to obtain marketing
exclusivity for our products for a period of time sufficient to establish a
market position and achieve an adequate return on our investment in product
development. We believe that protection of our products and technology under
United States and international patent laws and other intellectual property
laws is an important factor in securing such market exclusivity.

Although we pursue patent protection for our technology, significant legal
issues remain as to the extent to which patent protection may be afforded in
the field of biotechnology, in both the United States and foreign countries.
Furthermore, the scope of protection has not yet been broadly tested.
Therefore, we also rely upon trade secrets, know-how and continuing
technological advancement to develop and maintain our competitive position.
Disclosure of our know-how is generally protected under confidentiality
agreements. We do not know, however, whether all of our confidentiality
agreements will be honored, that third parties will not develop equivalent
technology independently, that disputes will not arise as to the ownership of
technical information or that wrongful disclosure of our trade secrets will not
occur.

Our academic collaborators have certain rights to publish data and
information regarding their discoveries to which we have rights. While we
believe that the limitations on publication of data developed by our
collaborators pursuant to our collaboration agreements will be sufficient to
permit us to apply for patent protection in the areas in which we are
interested in pursuing further research, there is considerable pressure on
academic institutions to publish discoveries in the genetics and genomics
fields. Any such publication could affect our ability to obtain patent
protection in the areas in which we may have an interest.

We are party to various license agreements that give us rights to
commercialize various technologies and to use certain technologies in our
research and development processes. The consideration paid in exchange for
these licenses include up-front fees, issuances of shares of common stock,
annual royalties, milestone payments and running royalties on net sales by us
and our sub-licensees. The licensors may terminate these agreements if we fail
to meet certain diligence requirements, fail to make payments or otherwise
commit a material breach that is not cured after notice.

Others may have filed, and in the future are likely to file, patent
applications covering molecules, genes or gene products that are similar or
identical to our technologies or products. These third party patent
applications may have priority over patent applications filed by us. Any legal
action against us or our strategic partners claiming damages and seeking to
enjoin commercial activities relating to the affected products and processes
could, in addition to subjecting us to potential liability for damages, require
us or our strategic partners to obtain a license in order to continue to
manufacture or market the

11
affected products and processes. There can be no assurance that we or our
strategic partners would prevail in any such action or that any license
required under any such patent would be made available upon commercially
acceptable terms, or at all. Litigation, which could result in substantial
costs to us, may be necessary to enforce any patents issued or licensed to us
or to determine the scope and validity of third party proprietary rights. Some
of our competitors have, or are affiliated with companies having, substantially
greater resources than we have, and such competitors may be able to sustain the
costs of complex patent litigation to a greater degree and for longer periods
of time than us.

MANUFACTURING

We have limited experience and capabilities in large-scale commercial
manufacturing of protein, cell therapy, biomaterials and small molecule
products. Creative established manufacturing facilities to produce the OP-1
Implant, which facilities were sold to Stryker in 1998. We do not currently have
any commercial manufacturing operations in-house and do not have a qualified
cGMP commercial manufacturing facility for any of our products. We or our
collaborative partners will need to establish commercial manufacturing capacity,
either internally or through third parties, for future products that we or our
collaborative partners may develop.

SALES AND MARKETING

Currently, we have no sales, marketing and distribution experience or
infrastructure and we do not intend to develop a sales, marketing and
distribution capability. We plan to rely significantly on sales, marketing and
distribution arrangements with our corporate partners until we develop broader
capabilities, if at all.

REGULATORY MATTERS

Regulation by governmental agencies in the United States and other
countries is a significant factor in the clinical evaluation and licensing of
our potential products as well as in the development and research of new
products. All of our products currently under development will require
regulatory approval by the FDA under the Food, Drug, and Cosmetic Act, as drugs
or devices, or under the Public Health Service Act, as biologicals, to be
marketed in the United States and by similar governmental agencies outside the
United States. Regardless of the classification assigned to our products, all
human diagnostic and therapeutic products are subject to rigorous testing to
demonstrate their safety and efficacy. Generally, considerable time and expense
are required to demonstrate safety for use in humans, to design an acceptable
clinical trial to enroll patients and to clinically evaluate the safety and
efficacy of a new product. Moreover, even after extensive preclinical testing,
unanticipated side effects can arise during clinical trials and in the course
of related or unrelated research (within or outside our control) that can halt
or substantially delay the regulatory process at any point. Seeking and
obtaining regulatory approval for a new therapeutic or diagnostic product is
likely to take several years and will require the expenditure of substantial
resources. We cannot predict whether any product which enters preclinical or
clinical development will be approved for sale by the FDA or any other
regulatory authorities.

Products developed through genetic engineering, such as some developed by
us, are relatively new, and state and local regulation may increase, as
genetically engineered products become more common. The federal government
oversees certain recombinant DNA research activity through the National
Institutes of Health (NIH) Guidelines for Research Involving Recombinant DNA
Molecules, known as the NIH Guidelines. We believe that our activities comply
with the NIH Guidelines. Discussions have been underway since 1996 between the
NIH and the FDA regarding alternative models for regulation of recombinant DNA
research and the products resulting from such research, and the appropriateness
of any continued NIH role. It is not possible to predict the effect of such
potential regulatory changes on our business or our potential competitors.

Cellular and tissue-based (tissue engineering) medicinal products are a
more recent development than even genetically engineered products. No
regulations and only minimal guidance have been

12
published by the FDA that are specific to products of this type. The FDA's
Center for Biologics Evaluation and Review (CBER) currently has the primary
review responsibility for all cell therapy products regardless of whether they
are, according to established definitions, considered biologicals, medical
devices or combination products. The relative inexperience of regulatory
authorities with the review and approval of tissue engineered products may lead
to increased review times or to significant changes in local, state and
national requirements which could have a significant impact on the progress of
these programs.

Our ability to conduct preclinical research is also subject to new and
evolving regulations governing the use of human and embryonic tissues for
isolating new growth factors and genes which may be useful in identifying and
developing new therapeutic product candidates. Our ability to conduct critical
research on which our development activities are based could be restricted or
delayed depending on the outcome of pending rulemaking proceedings governing the
use of these tissues and the collection of related genetic information.

Pharmaceutical and Biological Products

We expect that certain of our potential products will be regulated by the
FDA or other regulatory authorities as pharmaceuticals or biologicals. In the
United States, the regulatory approval process for pharmaceutical and
biological products intended for therapeutic use in humans involves several
steps. Similar requirements are imposed by other regulatory authorities in
major market countries.

Clinical testing usually occurs in three phases to demonstrate safety
and efficacy of the product:

. Phase I clinical trials consist of testing for the safety and tolerance of
the product with a small group of subjects and may also yield preliminary
information about the efficacy and dosage levels of the product;

. Phase II clinical trials involve testing for efficacy, determination of
optimal dosage and identification of possible side effects in a larger
patient group; and

. Phase III clinical trials consist of additional testing for efficacy and
safety with an expanded patient group.

Currently, the FDA requires the filing of new information for each
distinct clinical study. After product approval, the FDA may request or require
an additional phase (Phase IV) of clinical studies to provide further
information on safety and/or efficacy.

Many of the biomaterials, cell types and ingredients used in our products
and product candidates have not previously been used as components in medicinal
products. Historically, neither the FDA nor other regulatory authorities have
determined the safety and efficacy of these materials for pharmaceutical or
other medical use. Therefore, the acceptability or approvability of these
materials has not been demonstrated.

Devices

We expect that certain of our products, if developed, would be regulated by
the FDA as Class III devices and as regulated devices by other regulatory
authorities. Preclinical evaluations of Class III devices are similar to those
of pharmaceuticals and biologicals, with additional emphasis on implant
persistence, implant sensitization, and carrier characterization and
specifications. Upon completion of preclinical testing, an Investigational
Device Exemption (IDE) application is filed with the Center for Devices and
Radiological Health in the FDA. Similar requirements are imposed by other
regulatory authorities in major market countries.

Following the completion of clinical studies, under the IDE, a company
would then file a pre-market approval application (PMA) with the FDA. The FDA
is required to respond to the PMA

13
submission within 180 days, although the FDA may not adhere to this schedule
and further review may take additional time. After the FDA completes its review
of the application, the product is typically reviewed by a panel of medical
experts, and the applicant is required to answer questions on the product's
safety and effectiveness. Following the recommendation of the panel, a PMA may
be granted by the FDA based on the PMA submission. Based on the data filed, the
FDA regulates the indications or uses for which the product is approved and the
precautions and warnings, if any, applicable to the product. If so approved,
the product may then be marketed for the indications set forth in the FDA
approved labeling.

Employees

As of February 28, 2002, we had 105 full time employees, of whom 52 hold
Ph.D. or other advanced degrees. Approximately 58 of these employees are
currently involved in research and approximately 19 are currently involved in
closing out the INDs for our suspended clinical trials. None of our employees is
a party to a collective bargaining agreement, and we consider our relations with
our employees to be good.

ITEM 2. PROPERTIES

We have three facilities located in Cambridge, Massachusetts. Two of the
facilities are located next to each other at 45 and 61 Moulton Street, and
consist of approximately 34,000 and 18,000 square feet, respectively. Both
Moulton Street facilities are leased until April 2007. We have sublet 5,300
square feet at 45 Moulton Street for a period of 30 months beginning March 1,
2002. The third facility, located at 21 Erie Street, has approximately 50,000
square feet and is leased through the end of 2007. The Moulton Street buildings
are used primarily by our research and administration groups, and the Erie
Street building was used primarily by our development and manufacturing groups
prior to the realignment announced in February 2002. We intend to reduce the
carrying cost relating to the Erie Street building by sublease or partnership
with another company. We believe that our facilities will be adequate through at
least the end of 2003.

ITEM 3. LEGAL PROCEEDINGS

There are no material pending legal proceedings, other than ordinary
routine litigation incidental to our business, to which we are a party or of
which our property is the subject. To our knowledge, no material legal
proceeding is being contemplated by any governmental authority.

14
ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

We did not submit any matter to a vote of security holders during the
fourth quarter of the fiscal year covered by this Annual Report.

EXECUTIVE OFFICERS OF THE REGISTRANT

Our executive officers are as follows:

Name Age Position
---- --- --------
Daniel R. Passeri 41 President and Chief
Executive Officer

George A. Eldridge 38 Vice President, Chief
Financial Officer,
Secretary and Treasurer

Lee L. Rubin, Ph.D. 51 Senior Vice President
of Research and Chief
Scientific Officer

Daniel R. Passeri Mr. Passeri has served as President and Chief
Executive Officer and as a Director of the
Company since September 2001. From November 2000
to September 2001, Mr. Passeri served as Senior
Vice President, Corporate Development and
Strategic Planning of the Company. From March
1997 to November 2000, Mr. Passeri was employed
by GeneLogic Inc., a biotechnology company, most
recently as Senior Vice President, Corporate
Development and Strategic Planning. From February
1995 to March 1997, Mr. Passeri was employed by
Boehringer Mannheim, a pharmaceutical,
biotechnology and diagnostic company, as Director
of Technology Management. Mr. Passeri is a
graduate of the National Law Center at George
Washington University, with a J.D., of the
Imperial College of Science, Technology and
Medicine at the University of London, with a M.S.
in biotechnology, and of Northeastern University,
with a B.S.

George A. Eldridge Mr. Eldridge has served as Vice President, Chief
Financial Officer and Treasurer of the Company
since March 2000 and Secretary since December 2000.
Mr. Eldridge joined Ontogeny in April 1996 as Vice
President of Finance. From April 1993 to April 1996,
Mr. Eldridge was employed by Boston Life Sciences,
Inc. where he was Vice President, Corporate
Development and Finance. Prior to that, Mr. Eldridge
worked with the investment banking firm, Kidder,
Peabody & Co., Incorporated for a total of five years
in its New York and Boston offices. A graduate of
Dartmouth College, Mr. Eldridge received his M.B.A.
from the University of Chicago Graduate School of
Business. Mr Eldridge expects to depart the Company
during 2002 after completion of his transitional
responsibilities under the realignment of the
Company's programs announced during the first quarter
of 2002.

Lee L. Rubin, Ph.D. Dr. Rubin has served as Senior Vice President of
Research and Chief Scientific Officer of the Company
since September 2000 and prior to that as Vice
President of Research of the Company since March
2000. Dr. Rubin joined Ontogeny in October 1997 as
vice president of Research. Prior to joining
Ontogeny, Dr. Rubin spent six years at Eisai London
Laboratories at University College London, where he
was director and professor of neurobiology. Prior to
that, Dr. Rubin worked for four years with Athena
NeuroSciences, Inc. as senior scientist and head of
the blood-brain barrier program. Dr. Rubin completed
his Ph.D. at Rockefeller University and his B.A. at
Cornell University.

15
PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDERS MATTERS

Our Common Stock was first traded on the Nasdaq National Market on August
1, 2000. Our trading symbol is "CRIS." The following table sets forth, for the
fiscal periods indicated, the high and low sales prices per share of our Common
Stock as reported on the Nasdaq National Market:

Our
Common Stock
------------

Fiscal Year 2000 High Low
- ---------------- ---- ---
Third Quarter (from August 1, 2000).... $ 27.25 $ 13.88
Fourth Quarter......................... $ 19.94 $ 6.88

Fiscal Year 2001
- ----------------
First Quarter.......................... $ 13.00 $ 3.25
Second Quarter......................... $ 6.90 $ 3.00
Third Quarter.......................... $ 7.00 $ 3.01
Fourth Quarter......................... $ 5.75 $ 3.25

There were 285 holders of record of our Common Stock as of March 20,
2002. The number of record holders may not be representative of the number of
beneficial owners because many of the shares of our Common Stock are held by
depositories, brokers or other nominees.

We have never declared or paid any cash dividends on our Common Stock. We
currently intend to retain earnings, if any, to support our growth strategy and
do not anticipate paying cash dividends in the foreseeable future. Payment of
future dividends, if any, will be at the sole discretion of the Board of
Directors after taking into account various factors, including our financial
condition, operating results, capital requirements and any plans for expansion.

On July 18, 2001, we issued certain securities to Elan International
Services, Ltd. ("EIS") in a private placement, which was a part of our joint
venture with Elan. The securities that we sold as a part of this private
placement consisted of 1,000 shares of convertible exchangeable preferred stock,
par value $0.01 per share (the "Preferred Stock"), 546,448 shares of Common
Stock and a warrant to purchase up to 50,000 shares of Common Stock (the
"Securities"). In exchange for the Securities, we received an aggregate value of
$16,015,000 from EIS which consisted of $4,000,000 in cash and $12,015,000 in a
non-cash cross receipt. In turn, we used this amount to fund our pro-rata share
of a $15,000,000 technology license purchased by Curis Newco from Neuralab,
Ltd., an affiliate of EIS.

We determined that the offering of the Securities to EIS was exempt from
registration under Section 4 of the Securities Act of 1933, as amended. We based
our conclusion that the above transaction was exempt from registrations on
representations by EIS that it is an accredited investor and that it would not
seek to transfer the Securities without registration under the Securities Act or
pursuant to an available exemption from registration.

The shares of Preferred Stock are convertible at the option of EIS into
shares of Common Stock at any time until July 18, 2007. Each share of Preferred
Stock will be convertible into shares of Common Stock at a rate of 12,015 plus
any accrued but unpaid dividends divided by 14.12. Alternately, EIS may exchange
all of the shares of Preferred Stock into 3,612 shares of non-voting convertible
preference shares of Curis Newco. These preference shares would in turn be
convertible at EIS's option into 30.1% of Curis Newco's voting common shares.
The effect of an exchange by EIS of the Preferred Stock followed by a conversion
by EIS of all of its preference shares of Curis Newco would be to give EIS 50%
of Curis Newco's voting common shares.

The warrant to purchase 50,000 shares of Common Stock may be exercised at
the option of EIS in exchange for the payment by EIS of the exercise price,
which is $10.46 per share.

16
ITEM 6.     SELECTED FINANCIAL DATA

The selected consolidated financial data set forth below have been derived
from our consolidated financial statements. These historical results are not
necessarily indicative of results to be expected for any future period. You
should read the data set forth below in conjunction with "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the Consolidated Financial Statements and related Notes included in this Annual
Report on Form 10-K.

<TABLE>
<CAPTION>
Years Ended December 31,
-----------------------------------------------------
2001 2000 1999 1998 1997
--------- --------- --------- -------- ----------
(in thousands, except per share data)
<S> <C> <C> <C> <C> <C>
Consolidated Statement of Operations Data:
Revenues:
Research and development contracts and government grants.......... $ 968 $ 997 $ 3,160 $ 10,419 $ 12,693
License fees and royalties........................................ 119 26 52 10 --
Manufacturing contracts........................................... -- -- -- -- 394
--------- --------- --------- --------- ----------
Total revenues...................................................... 1,087 1,023 3,212 10,429 13,087
--------- --------- --------- --------- ----------
Costs and expenses:
Research and development (A)...................................... 29,072 17,424 10,435 24,856 25,122
General and administrative (A).................................... 10,492 9,330 5,524 6,946 5,827
Stock-based compensation (A)...................................... 10,358 16,628 64 322 254
Amortization of and impairment charged related to intangible assets 23,339 14,451 808 207 392
Loss on disposition of fixed assets............................... -- 204 -- -- --
In-process research and development............................... -- 294,800 -- -- --
Cost of manufacturing contracts................................... -- -- -- -- 274
1999 reorganization and 1998 sale of manufacturing operations..... -- (38) 256 1,362 --
--------- --------- --------- --------- ----------

Total costs and expenses............................................ 73,261 352,799 17,087 33,693 31,869
--------- --------- --------- --------- ----------

Loss from operations................................................ (72,175) (351,776) (13,875) (23,264) (18,782)
--------- --------- --------- --------- ----------

Equity in loss from joint venture................................... (13,453) -- -- -- --

Other income (expense)

Interest and other income......................................... 4,548 1,906 1,926 2,196 2,346

Interest expense.................................................. (784) (481) (161) (327) (216)
--------- --------- --------- --------- ----------

Total other income................................................ 3,764 1,425 1,765 1,869 2,130
--------- --------- --------- --------- ----------

Net loss............................................................ (81,864) (350,351) (12,110) (21,395) (16,652)
Accretion and repurchase costs on Series 1998/A Preferred Stock..... -- -- (2,395) (987) --

Accretion of Series A Redeemable Preferred Stock.................... (326) -- -- -- --
--------- --------- --------- --------- ----------
Net loss applicable to common stockholders.......................... $(82,190) $(350,351) $(14,505) $(22,382) $(16,652)
--------- --------- --------- --------- ----------
Basic and diluted net loss per common share......................... $ (2.58) $ (19.80) $ (1.36) $ (2.22) $ (1.68)
--------- --------- --------- --------- ----------
Weighted average common shares used for basic and diluted net loss
computation......................................................... 31,859 17,694 10,682 10,102 9,923
--------- --------- --------- --------- ----------
(A) The following summarizes the departmental allocation of the
stock-based compensation charge:

Research and development............................................ $ 6,156 $ 8,358 $ -- $ -- $ --
General and administrative.......................................... 4,202 8,270 64 322 254
--------- --------- --------- --------- ----------
Total stock-based compensation...................................... $ 10,358 $ 16,628 $ 64 $ 322 $ 254
========= ========= ========= ========= ==========
</TABLE>

<TABLE>
<CAPTION>
As of December 31,
-----------------------------------------------------------------------
2001 2000 1999 1998 1997
----------- ----------- ----------- ----------- -----------
(in thousands)
<S> <C> <C> <C> <C> <C>
Consolidated Balance Sheet Data:
Cash, cash equivalents and marketable
securities................................ $ 52,107 $ 75,799 $ 21,371 $ 57,935 $ 30,598
Working capital........................... 42,848 67,364 17,116 49,613 32,381
Total assets.............................. 144,756 182,682 28,892 66,164 59,038
Debt and lease obligations, net of current
portion................................... 4,951 4,155 1,009 713 2,005
Convertible notes payable................. 2,507 -- -- -- --
Series A Redeemable Preferred Stock....... 12,341 -- -- -- --
Series 1998 A Preferred Stock............. -- -- -- 23,053 --
Accumulated deficit....................... (554,136) (471,946) (121,595) (109,485) (88,090)
Total stockholders' equity................ 101,020 168,814 23,422 33,105 52,709
</TABLE>

17
ITEM 7.     MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS

You should read the following discussion and analysis in conjunction with
"Selected Financial Data" and our financial statements and notes included
elsewhere in this Annual Report on Form 10-K.

Overview

On July 31, 2000, Creative BioMolecules, Inc. ("Creative"), Ontogeny,
Inc. ("Ontogeny") and Reprogenesis, Inc. ("Reprogenesis") merged with and into
Curis, Inc. ("Curis" or "the Company"), pursuant to an Agreement and Plan of
Merger dated as of February 14, 2000. On July 31, 2000, Curis, as the surviving
company of the merger, assumed the rights and obligations of Creative, Ontogeny
and Reprogenesis. Immediately after the merger, Curis was owned approximately
43% by the former stockholders of Creative, 38% by the former stockholders of
Ontogeny and 19% by the former stockholders of Reprogenesis. Consequently, for
accounting purposes, Curis is deemed to be the successor to Creative, and the
historical financial statements of Creative have become the historical
financial statements of Curis. The merger has been accounted for as a purchase
by Creative of Ontogeny and Reprogenesis in accordance with Accounting
Principles Board (APB) Opinion No. 16, Accounting for Business Combinations,
and accordingly, Ontogeny's and Reprogenesis' operating results since the
merger date are included in the accompanying financial statements.

In accordance with APB No. 16, the purchase price for Ontogeny and
Reprogenesis has been allocated to the assets and liabilities of Ontogeny and
Reprogenesis based on their fair values. The aggregate purchase price based on
the fair market value of Creative common stock was $300,731,000 and
$149,000,000 for Ontogeny and Reprogenesis, respectively, including the value
of the outstanding options and warrants exchanged for options and warrants to
purchase the common stock of Curis and the transaction costs related to the
merger.

The purchase price of Ontogeny and Reprogenesis was allocated to the
assets acquired based upon an independent appraisal which used proven valuation
tools and techniques. Significant portions of the purchase price were
identified as intangible assets which included in-process research and
development (IPR&D) of $294,800,000 and assembled workforce of $500,000. The
fair value of the IPR&D relating to current in-process research and development
projects was recorded as an expense as of the merger date. The excess of the
purchase price over the fair value of identified tangible and intangible net
assets of $105,477,000 has been allocated to goodwill. Through December 31,
2001, intangible assets were being amortized over their estimated useful lives
of four to five years. Beginning January 1, 2002, the Company will adopt
Statement of Financial Accounting Standards ("SFAS") No. 142, Goodwill and
Other Intangible Assets, and will cease amortization of goodwill and assembled
workforce. Going forward, the goodwill will be subject to an annual assessment
for impairment based on fair value.

The Company announced on February 14, 2002 that it is realigning its
research and development programs and narrowing the focus of its resources on
its signaling pathway and stem cell technologies. As part of this realignment,
the Company suspended its clinical product development efforts on Vascugel for
coronary artery disease. The Company also terminated clinical development
efforts on Chondrogel, its program for the treatment of vesicoureteral reflux,
and its basal cell carcinoma oncology candidate. In connection with the above,
the Company reduced its staff by 35 employees, including three executive
officers. The Company will incur cash expenditures in 2002 of approximately
$3,500,000 related to the realignment that include severance payments of
approximately $1,300,000 and costs associated with the termination and
suspension of its clinical programs and related facility decommissioning costs
of approximately $2,200,000.

Certain research programs affected by the realignment were acquired
by the Company from Reprogenesis and Ontogeny through the merger. The net book
value of intangibles as a result of the acquisitions of Reprogenesis and
Ontogeny was approximately $26,215,000 and $46,857,000,

18
respectively, as of December 31, 2001. In conjunction with SFAS No.142, the
Company is in the process of completing the first step of the transitional
goodwill impairment test. If the carrying amount of the net assets of the
reporting unit (including goodwill) from which these programs have been derived
exceeds the fair value of that reporting unit, the impairment loss recognized as
a result of a transitional goodwill impairment test will be recognized by the
Company as an effect of a change in accounting principle effective as of the
first quarter in 2002. The Company has not determined the potential impairment
loss, if any, from adopting SFAS No. 142. The Company does believe that the
realignment in February 2002 may result in a goodwill and assembled workforce
impairment beyond any impairment recognized due to the adoption of SFAS No. 142.
This impairment charge would be recognized as a charge to operations in the
first quarter of fiscal 2002. The Company has not yet assessed the amount, if
any, of this impairment charge.

In addition to its assessment of impairment as a result of the
realignment in February 2002, the Company performed an assessment of impairment
on its goodwill and assembled workforce intangible assets as of December 31,
2001. The Company determined that the recoverability of these intangible
assets was not impaired based on the future undiscounted net cash flows for the
products underlying these intangible assets as of December 31, 2001. The
underlying products included in this assessment were based on the Company's
focus as of December 31, 2001.

Collaborations

To date, revenues from research and development contracts and license
fees have been generated from agreements between Curis and its collaborative
partners. Over the next few years, Curis anticipates deriving most of its
revenues from royalties from Stryker, from the recognition of deferred revenue
under its collaboration with Micromet AG, and from additional collaboration
agreements which Curis may enter into in the future. There can be no assurance
that Curis will be able to enter into such collaborations on acceptable terms,
or at all and, therefore may not generate future research and development
contract revenues.

Since January 2001, we have entered into four new collaborations,
including (i) a license and collaboration agreement with Aegera Therapeutics,
Inc. which granted the Company an exclusive worldwide license of Aegera's
skin-derived, adult stem cell technologies outside the field of ophthalmology,
(ii) purchase and sale, target identification and product development agreements
with Micromet AG, a German corporation, relating to the Company's
single-chain-polypeptide technology, (iii) the formation of Curis Newco with an
affiliate of Elan Corporation, plc ("Elan") that is committed to the research
and development of molecules that stimulate the hedgehog (Hh) signaling pathway
in the area of neurological indications, and (iv) an agreement with AGY
Therapeutics, Inc., a privately-held biotechnology company headquartered in San
Francisco, California, to attempt to discover and develop novel small molecule
drugs from stem cells for therapeutic, diagnostic and other applications
relevant to neurodegenerative diseases, diabetes, oncology, and central nervous
system diseases.

The Company's research and development contract revenue is and is
anticipated to be primarily derived from contracts with biotechnology and
pharmaceutical companies. These contracts may include payments for research
related activities, technology access and license fees, research and development
milestones and royalties. The Company follows the provisions of the Securities
and Exchange Commission's Staff Accounting Bulletin No. 101 (SAB No. 101),
Revenue Recognition. In accordance with SAB No. 101, the Company recognizes
revenue related to research activities as they are performed, so long as there
is persuasive evidence of an arrangement, the fee is fixed or determinable, and
collection of the related receivable is probable. For the years ended December
31, 2001 and 2000, the Company has not recognized revenue relating to research
and development services provided under its corporate collaboration agreements.

Amounts received for license fees are deferred and recognized as
services are performed over the performance period of the contract. Amounts
received for milestones will be recognized upon

19
achievement of the milestone as long as the milestone is deemed to be
substantive and the Company has no other performance obligations. In the event
the Company has remaining performance obligations, the portion of the milestone
payment equal to the lesser of the percentage of the services performed through
that date or the non-refundable cash received would be recognized. The
percentage of services performed is based on the ratio of the number of direct
labor hours performed to date to total direct labor hours the Company is
obligated to perform under the related contract, as determined on a full time
equivalent basis. The remainder will be recognized proportionately as the
remaining services are performed. Royalty revenue will be recognized upon the
sale of the related products, provided the royalty amounts are fixed or
determinable and collection of the related receivable is probable.

Amounts received prior to satisfying the above revenue recognition
criteria are recorded as deferred revenue. Amounts not expected to be
recognized during the year ended December 31, 2002 are classified as long-term
deferred revenue. As of December 31, 2001, the Company has short- and long-term
deferred revenue of approximately $82,000 and $12,064,000, respectively,
related to the Micromet AG agreements.

The Company has an agreement with Stryker in the area of
bone-inducing proteins and dental therapeutics. Under this agreement, in
exchange for research funding, future royalties and revenue from commercial
manufacturing, Creative developed OP-1 as a therapy for orthopaedic
reconstruction and cartilage regeneration, and supplied Stryker material for use
in clinical trials. Creative restructured its agreements with Stryker in
November 1998 to provide Stryker with the exclusive rights to manufacture OP-1
products in these fields. At that time, Stryker acquired Creative's commercial
manufacturing operations. As a result, Stryker has the exclusive right to
develop, market, manufacture and sell products based on OP-1 proteins for use in
orthopaedic reconstruction and dental therapies. Beginning May 2001, Stryker has
received regulatory approval to market its OP-1 Implant product in Australia,
the European Union, the United States (on a Humanitarian Device Exemption
basis), and Canada.

Curis did not receive significant revenue from Stryker during 2001.
The Company will only receive significant revenue if sales of OP-1 grow in 2002
and future years or if additional indications of OP-1 receive regulatory
approval in future years.

Curis has been awarded $4,000,000 of government grants from the
National Institute of Standards and Technology ("NIST"). These grants are to be
received over the period ending on December 31, 2003, are cancelable at the
discretion of NIST and are subject to annual appropriation by the US
government. Curis recognizes grant revenue as the services are provided and
costs are incurred under the terms of the grants. During the first quarter of
2002, the Company requested that these awards be suspended while the Company
reviewed its desire to continue development efforts on these projects. The
awards can be reinstated, if approved by NIST, upon the Company's election to
continue its development program as outlined under the terms of the grant
awards.

Future operating results will depend largely on the magnitude of
royalty payments from Stryker and the outcome of other product candidates
currently in the Company's research and development pipeline. The Company
cannot be sure of either the future growth rate of these royalties or the
likelihood of successful outcomes for products currently in the Company's
pipeline. Curis has never been profitable and expects to incur additional
operating losses in the next several years. Curis' results of operations will
vary significantly from year to year and quarter to quarter and depend on,
among other factors, the timing of entering into collaboration agreements and
receiving payments from collaborative partners, the

20
magnitude of OP-1 royalties received and the cost and outcome of clinical
trials. Curis currently expects that it has sufficient cash to operate into
the fourth quarter of 2003.

Critical Accounting Policies

In December 2001, the SEC requested that all registrants list their
most "critical accounting policies" in MD&A. The SEC indicated that a "critical
accounting policy" is one which is both important to the portrayal of the
company's financial condition and results and requires management's most
difficult, subjective or complex judgments, often as a result of the need to
make estimates about the effect of matters that are inherently uncertain.
Management believes that the following accounting policies fit this definition:

Revenue recognition. The Company's revenue recognition policy is
significant because revenue is a key component of the Company's results of
operations. The Company follows detailed guidelines in measuring revenue;
however, certain judgments affect the application of its revenue policy. For
example, the Company has entered into purchase and sale, product development
and target research agreements with Micromet AG, under which the Company has
recorded on its balance sheet short- and long-term deferred revenue based on
its best estimate of when such revenue will be recognized. A portion of the
consideration received from this sale was equity securities and a convertible
note. The estimate of deferred revenue includes management's assessment of the
value attributable to the equity securities and realization of the convertible
note. Revenue for the upfront payments received from Micromet AG for the sale
of technology will be recognized as services are performed over the Company's
estimated performance period under the product development agreement.
Additionally, the Company records royalty revenue under its agreements with
Stryker. Royalty revenues are recorded by the Company as sales are reported to
the Company by Stryker and collection of the resulting receivable is reasonably
assured. Revenue results are difficult to predict, and any shortfall in
revenue or delay in recognizing revenue could cause our operating results to
vary significantly from quarter to quarter.

Valuation of Long-Lived Assets. The Company assesses the impairment
of identifiable intangibles, long-lived assets and goodwill whenever events or
changes in circumstances indicate that the carrying value may not be
recoverable. If it is determined that the carrying value of intangible,
long-lived assets and goodwill might not be recoverable based upon the
existence of one or more indicators of impairment, the Company would measure
any impairment based on a projected cash flow method. During the third quarter
of the year ended December 31, 2000, the Company recorded an impairment charge
of approximately $4,611,000 to reduce the carrying value of patents determined
not to be beneficial or not expected to be utilized in future operations and
which have no alternative future use. As a result of the adoption of SFAS No.
142 in the first quarter of 2002, the Company will cease to amortize goodwill.
In lieu of amortization, the Company is required to perform an initial
assessment of impairment of its goodwill in 2002, an annual impairment review
thereafter or whenever events or changes in circumstances indicate that the
carrying value may not be recoverable. As a result of a realignment of its
research and development programs announced on February 14, 2002, the Company
may record an impairment charge relating to its goodwill and assembled
workforce assets. This impairment charge would be recognized as a charge to
operations in the first quarter of 2002. The Company has not yet determined the
amount of such impairment loss.

In addition to its assessment of impairment as a result of the
realignment in February 2002, the Company performed an assessment of impairment
on its goodwill and assembled workforce intangible assets as of December 31,
2001. The Company determined that the recoverability of these intangible
assets was not impaired based on the future undiscounted net cash flows for the
products underlying these intangible assets as of December 31, 2001. The
underlying products included in this assessment were based on the company's
focus as of December 31, 2001.

The above list is not intended to be a comprehensive list of all of
our accounting policies. In many cases, the accounting treatment of a
particular transaction is specifically dictated by generally

21
accepted accounting principles, with no need for management's judgment in their
application. There are also areas in which management's judgment in selecting
any available alternative would not produce a materially different result. See
the Company's audited consolidated financial statements and notes thereto which
begin on page F-1 which contain accounting policies and other disclosures
required by generally accepted accounting policies.

RESULTS OF OPERATIONS

The consolidated statement of operations data for the year ended
December 31, 2001 include only the operating expenses of Curis for such period.
The consolidated statement of operations data for the year ended December 31,
2000 include the operating results of Creative for the seven months ended July
31, 2000 and the operating results of Curis, comprising the combined operations
of Creative, Ontogeny and Reprogenesis, for the five months ended December 31,
2000. Accordingly, comparisons of operating expenses between the 2001 and the
2000 periods may not prove to be meaningful. Additionally, in the year ended
December 31, 2000, the Company incurred significant non-cash charges associated
with the merger and cash expenses for merger related fees and expenses. The
consolidated balance sheet data as of December 31, 2001 and 2000 reflects the
balance sheets of Curis post merger.

Years Ended December 31, 2001 and 2000

Total revenues for the year ended December 31, 2001 were $1,087,000
as compared to $1,024,000 for the year ended December 31, 2000. A majority of
revenues for both the years ended December 31, 2001 and 2000 were derived from
research and development contracts and government grants. Revenues recognized
from these sources totaled $968,000 and $997,000 for the years ended December
31, 2001 and 2000, respectively.

License fees and royalties increased $93,000 to $119,000 for the year
ended December 31, 2001 as compared to $26,000 for the year ended December 31,
2000. The increase in royalties was primarily due to revenues received in 2001
from Stryker on sales of OP-1.

Research and development expenses increased 67% to $29,072,000 for
the year ended December 31, 2001 from $17,424,000 for the year ended December
31, 2000. The increase was primarily due to the impact of the merger which
occurred on July 31, 2000. Research and development expenses for the year ended
December 31, 2001 include the costs incurred by the combined companies for the
entire twelve-month annual period. Research and development expenses for the
year ended December 31, 2000 include the costs incurred by only Creative for
the seven-month period of January 1, 2000 to July 31, 2000 and the combined
companies for the five-month period from August 1, 2000 to December 31, 2000.
This general increase based on the timing of the merger was offset in part by
severance payments made by Creative in the year ended December 31, 2000.

Research and development expenses for the year ended December 31,
2001 include the cost of employees involved in research and development of
$8,625,000, external lab services including clinical trials, medicinal
chemistry, consulting and sponsored research collaborations of $9,594,000, lab
and clinical trial manufacturing supplies of $3,711,000, occupancy and
depreciation charges of $4,502,000 and legal fees associated with the Company's
intellectual property of $2,427,000. Research and development expenses for the
year ended December 31, 2001 are net of $1,774,000 in expenses that were
charged by the Company to Curis Newco. However, 80.1% of these costs are
included in Equity in Loss from Joint Venture in the Company's consolidated
statement of operations.

Research and development expenses for the year ended December 31,
2000 include the cost of employees involved in research and development of
$5,100,000, external lab services including clinical trials, medicinal
chemistry, consulting and sponsored research collaborations of $3,200,000, and
facility related costs of $1,300,000. In addition, research and development
expenses for the year ended December

22
31, 2000 include severance paid to former officers of Creative totaling
$656,000, and severance payments relating to the termination of seven other
employees totaling $251,000.

General and administrative expenses increased 12% to $10,493,000 for
the year ended December 31, 2001 from $9,330,000 for the year ended December
31, 2000. The increase was primarily due to the impact of the merger which
occurred on July 31, 2000. General and administrative expenses for the year
ended December 31, 2001 include the costs incurred by the combined companies
for the entire twelve -month annual period. General and administrative
expenses for the year ended December 31, 2000 include the costs incurred by
only Creative for the seven-month period of January 1, 2000 to July 31, 2000
and the combined companies for the five-month period from August 1, 2000 to
December 31, 2000. This general increase based on the timing of the merger was
offset in part by severance payments made by Creative in the year ended
December 31, 2000.

General and administrative expenses for the year ended December 31,
2001 include the cost of employees of $3,769,000, occupancy and depreciation
charges of $1,545,000, legal and professional fees of $1,066,000 and consulting
expense of $775,000.

General and administrative expenses for the year ended December 31,
2000 included personnel related costs of $1,400,000, legal and professional
fees of $875,000, and insurance expense of $600,000. In addition, general and
administrative expenses for the year ended December 31, 2000 include severance
paid to former officers of Creative of $1,048,000 and severance payments
relating to the termination of approximately eight other employees totaling
$122,000.

Stock-based compensation decreased by $6,270,000, or 38%, to
$10,358,000 for the year ended December 31, 2001 from $16,628,000 for the year
ended December 31, 2000. The decrease was partially due to two merger-related
stock-based compensation charges that were recorded in the year ended December
31, 2000 including (i) $3,538,000 that was related to the acceleration of
certain stock options and the extension of the exercise period for options held
by Creative's executive officers, outside directors and employees, and (ii)
$1,623,000 based on the fair value of 57,094 shares of restricted common stock
granted to a former Reprogenesis executive officer that became fully vested
upon the merger. In addition, the Company's stock-based compensation expense
related to deferred compensation resulting from the merger which was amortized
over the vesting period of the underlying options through August 1, 2001,
decreased to $6,257,000 in the year ended December 31, 2001 from $9,563,000 in
the year ended December 31, 2000. These decreases in merger-related stock-based
compensation were partially offset by an increase in stock-based compensation
expense related to Curis' issuance on August 18, 2000 of options to purchase
3,473,006 with an exercise price below fair market value. The resulting
stock-based compensation, net of terminations, of $17,330,000 is being
amortized over the four-year vesting period of the underlying stock options for
options granted to employees and as earned for nonemployees in accordance with
EITF 96-18. The total deferred compensation expense related to these options
was $3,964,000 and $1,904,000 for the years ended December 31, 2001 and 2000,
respectively.

Amortization of intangible assets increased by $8,888,000, or 62%, to
$23,339,000 for the year ended December 31, 2001, as compared to $14,451,000
for the year ended December 31, 2000. The increase was principally due to the
amortization of goodwill increasing to $23,114,000 from $9,641,000 for the
years ended December 31, 2001 and 2000, respectively. The increase in the
amortization of goodwill in 2001 was partially offset by an impairment charge
in the year ended December 31, 2000 of approximately $4,611,000 to reduce the
carrying value of certain capitalized patents determined not to be beneficial
or expected to be utilized in future operations and which have no alternative
future use.

Fixed asset disposition charges totaling $204,000 were incurred
during the year ended December 31, 2000 for the net book value of equipment
disposed of as a result of the merger. No such charges were incurred for the
year ended December 31, 2001.

A charge of $294,800,000 was incurred on July 31, 2000 resulting from
that portion of the purchase price of Ontogeny and Reprogenesis that was
identified as in-process research and development.

23
The purchase price of Ontogeny and Reprogenesis was allocated to the assets
acquired, including IPR&D, based upon an independent appraisal, which used
proven valuation tools and techniques.

During the year ended December 31, 2001, the Company incurred an
equity loss in Curis Newco of $13,453,000, which represented 80.1% of the total
net loss incurred by Curis Newco. The Company financed a majority of this loss
with the issuance of 1,000 shares of Series A convertible exchangeable preferred
stock, which were valued at $12,015,000, to Elan International Services, Ltd.,
an affiliate of Elan. The Company anticipates financing its share of the
development funding of Curis Newco through July 18, 2003 with drawdowns, which
are subject to Elan's consent, under an $8,010,000 convertible promissory note
entered into between the Company and Elan Pharma International, Ltd., also an
affiliate of Elan. The Company's portion of Curis Newco's other operating
expenses for the twelve-month period ended December 31, 2001 was $1,438,000.

For the year ended December 31, 2001, interest and other income was
$4,548,000 as compared to $1,906,000 for the year ended December 31, 2000, an
increase of $2,642,000 or 139%. This increase was principally due to a
$1,470,000 gain recognized on the sale of Exelixis, Inc. common stock.
Additionally, the increase in interest income resulted partially from the
consolidation into Curis of the investable cash and marketable security balances
and income earned thereon from the three companies prior to the merger for an
entire twelve-month annual period in the year ended December 31, 2001 versus
only a five-month period in the year ended December 31, 2000. The increase in
interest income is also partially attributed to the Company holding a higher
average investable cash balance as a result of net proceeds from a private
placement of approximately $43,348,000 in December 2000, offset in part by lower
average investment yields in the year ended December 31, 2001 as compared to the
year ended December 31, 2000.

For the year ended December 31, 2001, interest expense was $784,000
as compared to $481,000 for the year ended December 31, 2000, an increase of
$303,000 or 63%. The increase in interest expense resulted partially from the
consolidation into Curis of the outstanding lease obligations from the three
companies prior to the merger for an entire twelve-month annual period in the
year ended December 31, 2001 versus only a five-month period in the year ended
December 31, 2000. In addition, the Company recognized $135,000 of interest
expense related to a $5,000,000 debt facility, which was fully drawn down by
December 31, 2001. Lastly, the Company incurred $72,000 in non-cash interest
expense related to a $2,000,000 convertible subordinated note payable issued in
2001.

Accretion on Series A Redeemable Preferred Stock of $326,000 was
recorded for the year ended December 31, 2001. This amount related to a 6%
mandatory dividend on Series A convertible exchangeable preferred stock issued
to Elan International Services, Ltd. in connection with the formation of Curis
Newco.

As a result of the foregoing, Curis incurred a net loss applicable to
common stockholders of $82,190,000 for the year ended December 31, 2001 as
compared to $350,351,000 for the year ended December 31, 2000.

Years Ended December 31, 2000 and 1999

Total revenues for the year ended December 31, 2000 were $1,023,000
as compared to $3,212,000 for the year ended December 31, 1999. Research and
development contracts and government grants decreased 68% to $997,000 for the
year ended December 31, 2000 from $3,160,000 for the year ended December 31,
1999. The decrease in research and development contract and government grant
revenues from 1999 to 2000 was primarily the result of the termination of a
research agreement with Biogen, Inc. in 1999 partially offset by revenues of
$319,000 earned under the NIST grant received by Reprogenesis in November 1999.

License fees and royalties decreased 50% to $26,000 for the year
ended December 31, 2000 as compared to $52,000 for the year ended December 31,
1999. The decrease in license fees and royalties was primarily due to revenues
received in 1999 from licensing patent rights and know-how associated with
certain protein technology.

24
Research and development expenses increased 67% to $17,424,000 for
the year ended December 31, 2000 from $10,435,000 for the year ended December
31, 1999. The increase was primarily due to the impact of the merger which
occurred on July 31, 2000. Research and development expenses for the year ended
December 31, 2000 include the costs incurred by the combined companies for the
period from August 1, 2000 to December 31, 2000. These include the cost of 111
people involved in research and development of $5,100,000, external lab
services including clinical trials of $3,200,000, and facility related costs of
$1,300,000. In addition, research and development expenses for the year ended
December 31, 2000 include severance paid to former officers of Creative
totaling $656,000, and severance payments relating to the termination of seven
other employees totaling $251,000.

General and administrative expenses increased 69% to $9,330,000 for
the year ended December 31, 2000 from $5,524,000 for the year ended December
31, 1999. The increase was primarily due to costs incurred by the combined
companies for the period from August 1, 2000 to December 31, 2000 which
included personnel related costs of $1,400,000, legal and professional fees of
$875,000, and insurance expense of $600,000. In addition, general and
administrative expenses for the year ended December 31, 2000 include severance
paid to former officers of Creative of $926,000 and severance payments relating
to the termination of approximately eight other employees totaling $122,000.

Stock-based compensation increased to $16,628,000 for the year ended
December 31, 2000 from $64,000 for the year ended December 31, 1999. The
increase was primarily due to $9,563,000 of amortization expense related to
deferred compensation resulting from the merger which is being amortized over
the vesting period of the underlying options through August 1, 2001.
Additionally, a charge of $3,538,000 was recorded related to the acceleration
of certain stock options and the extension of the exercise period for options
held by Creative's executive officers, outside directors and employees. Also,
57,094 shares of restricted common stock granted to a former Reprogenesis
executive officer became fully vested upon the merger. Compensation expense of
$1,623,000 was recognized based on the fair value of the shares on the date of
the merger. Lastly, on August 18, 2000, Curis issued 3,473,006 options to its
employees as well as to nonemployees with an exercise price below fair market
value resulting in deferred compensation, net of terminations, of $17,330,000.
The deferred compensation is being amortized over the four-year vesting period
of the underlying stock options for options granted to employees and as earned
for nonemployees in accordance with EITF 96-18. The total deferred compensation
expense related to these options was $1,904,000 for the year ended December 31,
2000.

Amortization of intangible assets was $14,451,000 for the year ended
December 31, 2000, as compared to $808,000 for the year ended December 31,
1999. The increase was partially due to the amortization of goodwill totaling
$9,641,000 and the amortization of assembled workforce totaling $42,000
incurred as a result of the merger. In addition, Curis incurred an impairment
charge of approximately $4,611,000 to reduce the carrying value of certain
capitalized patents determined not to be beneficial or expected to be utilized
in future operations and which have no alternative future use. Patent
impairment charges for the year ended December 31, 1999 were approximately
$538,000. Amortization of patent costs were $157,000 for the year ended
December 31, 2000 as compared to $270,000 for the year ended December 31, 1999.

Fixed asset disposition charges totaling $204,000 were incurred
during the year ended December 31, 2000 for the net book value of equipment
disposed of as a result of the merger.

A charge of $294,800,000 was incurred on July 31, 2000 resulting from
that portion of the purchase price of Ontogeny and Reprogenesis that was
identified as in-process research and development. The purchase price of
Ontogeny and Reprogenesis was allocated to the assets acquired, including
IPR&D, based upon an independent appraisal which used proven valuation tools
and techniques.

For the year ended December 31, 2000, interest and other income was
$1,906,000 as compared to $1,926,000 for the year ended December 31, 1999, a
decrease of $20,000 or 1%. The decrease in interest

25
income resulted primarily from a slightly lower average available investment
balance as compared to the prior year.

For the year ended December 31, 2000, interest expense was $481,000
compared to $161,000 for the year ended December 31, 1999, an increase of
$320,000 or 199%. The increase in interest expense resulted primarily from the
consolidation into Curis of the outstanding lease obligations from the three
companies prior to the merger.

As a result of the foregoing, Curis incurred a net loss of
$350,351,000 for the year ended December 31, 2000 as compared to a net loss of
$12,110,000 for the year ended December 31, 1999.

Liquidity and Capital Resources

At December 31, 2001, our principal sources of liquidity consisted of
cash, cash equivalents and unrestricted marketable securities of $51,217,000.
We have financed our operations primarily through placements of equity
securities, payments received under agreements with collaborative partners and
government grants, amounts received under debt and capital lease agreements,
manufacturing contracts and the sale of certain of our OP-1 manufacturing
rights and facilities to Stryker.

Net cash used in operating activities was $24,877,000, $23,701,000
and $14,768,000 for the years ended December 31, 2001, 2000 and 1999,
respectively. Cash used in operating activities during 2001 was primarily the
result of the Company's net loss for the period partially offset by non-cash
charges including amortization of intangibles, stock-based compensation and
equity in the loss of Curis Newco. The 2001 net loss was also offset by an
increase in deferred revenue related to certain consideration received under
the assignment of the Company's single-chain-polypeptide technology to
Micromet. Net cash used in operating activities for the year ended December
31, 2000 was primarily the result of the Company's net loss for the period
offset by non-cash charges including the write-offs of in-process research and
development costs and certain patents deemed by the Company to be impaired,
stock-based compensation and amortization of intangibles. In the year ended
December 31, 1999, net cash used in operating activities was primarily the
result of the Company's net loss for the period combined with decreases in
accounts payable, accrued liabilities and deferred revenue of the company.

Net cash provided by investing activities was $6,429,000, $25,842,000
and $20,585,000 for the years ended December 31, 2001, 2000 and 1999,
respectively. Cash provided by investing activities in 2001 was primarily the
result of net proceeds from the sale of marketable securities totaling
$8,862,000. These proceeds were partially offset by net expenditures for
leasehold improvements and equipment of $1,746,000. Cash provided by investing
activities in 2000 was primarily the result of $28,619,000 of cash and
marketable securities from Ontogeny and Reprogenesis acquired at the time of
the merger. This amount was partially offset by cash expenditures for the
purchase of marketable securities of $2,530,000. In the year ended December
31, 1999, cash provided by investing activities was largely the result of
$21,544,000 in net sales of marketable securities.

Financing activities generated approximately $5,116,000 of cash in
the year ended December 31, 2001 resulting primarily from the sale of 546,448
shares of common stock at $7.32 for total net proceeds of $3,853,000, proceeds
received from the issuance of a convertible subordinated note payable to Becton
Dickinson of $2,000,000 and proceeds from other issuances of common stock
totaling approximately $951,000. These amounts were partially offset by
repayments on debt and capital lease arrangements by the Company of $1,603,000.
Financing activities generated approximately $47,521,000 of cash in the year
ended December 31, 2000 resulting primarily from the sale of 5.2 million shares
of common stock at $9.00 for total net proceeds of $43,348,000 and proceeds
from the exercise of options and warrants totaling approximately $5,357,000.
Financing activities used cash of $20,182,000 in the year ended December 31,
1999, primarily resulting from Creative's repurchase of 20,486 shares which
represented all of the outstanding Series 1998/A Preferred Stock following
final conversions, for approximately $22,470,000 in cash. The Series 1998/A
Preferred Stock has been retired and there will be no subsequent conversions
into common stock.

26
On July 18, 2001, the Company and Elan International Services, Ltd.
formed Curis Newco, , an entity that is committed to the research and
development of molecules that stimulate the hedgehog (Hh) signaling pathway. As
part of the joint venture arrangement, the Company entered into an $8,010,000
convertible promissory note agreement (the "Note Agreement") with Elan Pharma
International Limited ("EPIL"). The Note Agreement bears interest at 8% per
annum through July 18, 2005 and 6% per annum thereafter, compounded and payable
semi-annually. The borrowings under the Note Agreement are subject to Elan's
consent and restricted to the Company's development funding of Curis Newco. As
of December 31, 2001, there was approximately $675,000, including approximately
$1,000 in capitalized interest, outstanding under the Note Agreement.

On June 29, 2001, the Company entered into a purchase and sale
agreement with Micromet AG, a German corporation, pursuant to which the Company
assigned its single-chain-polypeptide technology to Micromet in exchange for
$8,000,000 in cash received, 3,003 shares of Micromet common stock valued at
approximately $686,000 and a convertible promissory note ("Note") of EUR
4,068,348 (approximately $3,604,000 at December 31, 2001). In addition, during
the first quarter of 2002, the Company entered into a target research and
license agreement and a product development agreement with Micromet. These
agreements will provide the Company with royalties on Micromet's product
revenues, if any, arising out of the assigned technology, rights to jointly
develop and commercialize future product discoveries, if any, arising out of the
product development agreement, and exclusive access by Curis to Micromet's
proprietary single cell analysis of gene expression technology in the field of
stem cell research. The product development agreement provides the Company the
right but not the obligation to jointly fund research to develop antibodies
against up to four potential targets through the proof of principle stage. The
Company estimates that its portion of funding costs for each of the potential
targets through proof of principle is approximately $1,000,000. The Company will
also have the right, but not the obligation, to jointly fund the development of
two such antibodies from the proof of principle stage through the completion of
Phase I Clinical Trials. Lastly, the Company will be obligated to pay milestones
to Micromet upon the attainment of certain development goals.

On June 26, 2001, the Company received $2,000,000 from Becton
Dickinson under a convertible subordinated note payable in connection with the
exercise by Becton Dickinson of an option to negotiate a collaboration
agreement. The note is repayable at any time up to its maturity date of June
26, 2006 by the Company, at its discretion, in either cash or upon issuance to
Becton Dickinson of shares of the Company's common stock. The note bears
interest at 7%.

On December 27, 2000, the Company entered into a term loan agreement
with a financial institution under which it was able to borrow up to $5,000,000
to finance fixed asset purchases and capital improvements through December 31,
2001. Advances under this facility are to be repaid over 12 quarterly
installments beginning on March 31, 2002. Interest on the advances is payable
at risk-adjusted LIBOR (4.38% as of December 31, 2001). Advances under the
facility are collateralized by all capital equipment and leasehold improvements
purchased with the funds under this facility. At December 31, 2001,
outstanding borrowings under this agreement totaled $5,000,000.

The Company leases equipment under various capital lease
arrangements. Monthly payments range from $363 to $21,170 and maturities range
from January 2002 to July 2004. The initial terms of the leases range from 36
to 60 months and bear interest at rates ranging from 11.0% to 16.3%. As of
December 31, 2001, approximately $2,660,000 was outstanding under these
agreements.

On October 5, 2000, the Company announced the receipt of its second
$2,000,000 grant from NIST to support the development of a new class of
biomaterials designed to enable surgical procedures that augment, repair or
regenerate lost structural tissue or physiological function. The grant period is
from January 1, 2001 to December 31, 2003. Previously, Reprogenesis had been
awarded a $2,000,000 grant from NIST to support the development of its
cardiovascular products, Vascugel and Vascuject. The grant period for the NIST
grant made to Reprogenesis is from November 1, 1999 to October 31, 2002. During
the first quarter of 2002, the Company requested that these awards be suspended
while the

27
Company reviewed its desire to continue development efforts on these projects.
The awards can be reinstated, if approved by NIST, upon the Company's election
to continue its development programs as outlined under the terms of the grant
awards.

In November 1998, certain OP-1 manufacturing rights and facilities
were sold to Stryker. In accordance with the terms of the sale, we have
received royalties from sales of Stryker products which were approved for
commercial sale in 2001.

As of December 31, 2001, the Company held 53,571 shares of common
stock of Exelixis, Inc. ("Exelixis") with a fair market value as of that date
of approximately $890,000, included in the Company's consolidated balance sheet
as of December 31, 2001 under the category "Marketable securities -
Restricted." The sale of these shares by the Company is restricted under an
agreement between the Company and Exelixis, which restricts their sale until
the one-year holding period has been satisfied on March 13, 2002. The value of
these shares could fluctuate based on the price of Exelixis common stock and
market conditions.

As of December 31, 2001, the Company had future payments required
under contractual obligations and other commitments approximately as follows:

<TABLE>
<CAPTION>

Less than
Total One Year 1-3 Years 4-5 Years
<S> <C> <C> <C> <C>
Long-term debt $ 8,882,000 $ 2,139,000 $ 4,236,000 $ 2,507,000
Capital lease obligations 2,998,000 1,682,000 1,316,000 -
Operating lease obligations 10,883,000 2,000,000 6,145,000 2,738,000
Sponsored research obligations 4,807,000 3,415,000 1,392,000 -
Licensing obligations 700,000 700,000 - -
------------ ----------- ----------- -----------
Total future obligations $ 28,270,000 $ 9,936,000 $13,089,000 $ 5,245,000
============ =========== =========== ===========
</TABLE>

The Company anticipates that existing capital resources, royalties to
be received from Stryker for the sale of OP-1, and amounts to be received
pursuant to the EPIL Note Agreement should enable it to maintain current and
planned operations into the fourth quarter of 2003. Beyond the fourth quarter
of 2003, the Company expects to incur substantial additional research and
development and other costs, including costs related to preclinical studies and
clinical trials. The Company's ability to continue funding planned operations
is dependent upon its ability to generate sufficient cash flows from its
royalty arrangements with Stryker, its collaboration with Elan, its other
collaborative arrangements and from additional funds raised through equity or
debt financings, or from other sources of financing, as may be required. With
respect to the Stryker royalty arrangements, as with the Company's other
collaborative arrangements, the Company's ability to generate sufficient cash
flows depends on a number of factors including the ability to obtain regulatory
approval to market and commercialize products to treat additional indications
in major commercial markets. The Company is seeking additional collaborative
arrangements and also expects to raise funds through one or more financing
transactions, if conditions permit. Over the longer term, because of the
Company's significant long-term capital requirements, it intends to raise funds
through the sale of debt or equity securities when conditions are favorable,
even if the Company does not have an immediate need for additional capital at
such time. There can be no assurance that additional financing will be
available or that, if available, it would be available on favorable terms. In
addition, the sale of additional debt or equity securities could result in
dilution to the Company's stockholders. If OP-1 is not approved for commercial
sale in the United States beyond its limited approval under the Humanitarian
Device Exemption provision and the Company does not receive significant
royalties from Stryker for product sales and/or if substantial additional
funding is not available, the Company's business will be materially and
adversely affected.



28
New Accounting Pronouncements

In July 2001, the Financial Accounting Standards Board ("FASB") issued
SFAS No. 141, Business Combinations, and SFAS No. 142, Goodwill and Other
Intangible Assets. SFAS No. 141 requires that all business combinations
initiated after June 30, 2001 be accounted for using the purchase method of
accounting. Effective January 1, 2002, the Company will adopt the provisions of
SFAS No. 142. This statement affects the Company's treatment of goodwill and
other intangible assets. The statement requires that goodwill existing at the
date of adoption be reviewed for possible impairment and that impairment tests
be periodically repeated, with impaired assets written down to fair value.
Additionally, existing goodwill and intangible assets must be assessed and
classified within the SFAS No. 142's criteria. Intangible assets with finite
useful lives will continue to be amortized over those periods. Amortization of
goodwill and intangible assets with indeterminable lives will cease.

The Company has until June 30, 2002 to complete the first step of the
transitional goodwill impairment test. However, the amounts used in the
transitional goodwill impairment test shall be measured as of the beginning of
the year of initial application. If the carrying amount of the net assets of a
reporting unit (including goodwill) exceeds the fair value of that reporting
unit, the second step of the transitional goodwill impairment test will be
completed by the Company as soon as possible, but no later than the end of
fiscal year 2002.

An impairment loss recognized as a result of a transitional goodwill
impairment test, if any, shall be recognized by the Company as the effect of a
change in accounting principle. Although a transitional impairment loss for
goodwill may be measured by the Company in other than the first interim
reporting period of fiscal year 2002, the Company is required to report the
loss, if any, in the first interim period of fiscal year 2002, irrespective of
the period in which it is measured, consistent with paragraph 10 of SFAS No. 3,
Reporting Accounting Changes in Interim Financial Statements. The Company
currently intends to complete its transitional assessment during the first
quarter of 2002 and to record the impairment, if any, at such time. In the
event that the assessment is not completed in the first quarter of 2002 and the
Company has a transitional impairment loss relating to its goodwill, the
Company will restate its reported fiscal year 2002 interim periods to effect
the change in accounting.

In August 2001, the FASB issued SFAS No. 144, Accounting for the
Impairment or Disposal of Long-Lived Assets, which supercedes SFAS No. 121,
Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
Be Disposed Of. SFAS No. 144 further refines the requirements of SFAS No. 121
that companies (1) recognize an impairment loss only if the carrying amount of
a long-lived asset is not recoverable based on its undiscounted future cash
flows and (2) measure an impairment loss as the difference between the carrying
amount and fair value of the asset. In addition, SFAS No. 144 provides guidance
on accounting and disclosure issues surrounding long-lived assets to be
disposed of by sale. The Company will be required to adopt SFAS No. 144 on
January 1, 2002. The adoption of this statement is not expected to have a
material impact on its financial position or results of operations.

RISK FACTORS

Investing in our securities involves a high degree of risk. Before
making an investment decision, you should carefully consider the following
information about these risks as well as other information we include or
incorporate by reference in this Annual Report on Form 10-K. The risks and
uncertainties we have described are not the only ones facing our Company.
Additional risks and uncertainties not presently known to us or that we
currently deem immaterial may also affect our business operations. If any of the
following risks actually occur, our business, financial condition or results of
operations would likely suffer, and you could lose all or part of your
investment.



29
RISKS RELATED TO OUR BUSINESS, INDUSTRY, STRATEGY AND OPERATIONS

Other than the approval of OP-1 for bone repair, we have not commercialized any
other products to date. If we are not able to commercialize any other products,
or if we are not able to develop and commercialize OP-1 for a wider array of
indications, we will not be profitable.

Even though Stryker has received approval to market OP-1 in the
United States, Europe, Australia and Canada for bone repair, we will need to
develop and commercialize OP-1 and other products for use in the treatment of a
wider array of indications in order to be profitable. While Stryker is
focusing its efforts on other orthopaedic indications such as spinal fusion, we
are focusing our efforts on identifying and elucidating products that may have
application for indications such as kidney disease, cancer and diseases of the
central nervous system. Many of the products currently in our pipeline require
additional research and development, clinical trials and/or regulatory
resources and/or expertise prior to any commercial sale.

In 2001, Stryker began selling OP-1 in Europe, Australia and the
United States. Other than OP-1, we currently have no other products for sale
by us or by our collaborative partners. If we or our collaborative partners
are not successful in developing and commercializing additional products in the
United States and globally, we will not become profitable.

We are dependent on collaborative partners for the development and
commercialization of many of our products. Any failure or delay by these
partners in developing or commercializing our products could eliminate
significant portions of our anticipated product pipeline.

Our strategy for development and commercialization of products
depends upon the formation of collaborations and strategic alliances. To date,
we have entered into strategic alliances with Stryker Corporation, Micromet AG,
Elan, Aegera Therapeutics Inc. and others. In the coming year, we intend to
enter into additional strategic alliances. If these strategic alliances do not
develop any products, or if the products developed as a result of these
alliances are not approved for commercial sale in the United States and/or
globally, our expected royalty revenues will be diminished and our business
will be materially and adversely affected. In addition, we may not be able to
form new strategic alliances necessary to develop and commercialize products
based upon our research efforts on terms favorable to us.

We have limited control over the resources that are dedicated or the
development schedule set by our alliance partner in these collaborations and
thereby may not be able to control the efforts that our alliance partners may
devote to their respective programs with us. The timing and amount of any
future royalties and manufacturing revenues with respect to product sales and
product development under such collaborative arrangements will therefore depend
on the level of commitment, timing and success of such collaborative partners'
efforts. Accordingly, we cannot predict the success of current or future
strategic alliances.

As we proceed with our research and development efforts, we regularly
review opportunities to establish new collaborations, joint ventures and
strategic alliances to develop, commercialize, manufacture and market products
in our development pipeline. For example, as a part of our recent
restructuring, we have ceased funding to our Chondrogel, Vascugel and basal
cell carcinoma projects pending the establishment of favorable arrangements to
commercialize these products. If we determine it is necessary to establish
certain new collaborations, joint ventures, or strategic alliances and we are
unable to establish favorable arrangements to commercialize our products, we
may elect to limit funding for other products in our development pipeline.

We face substantial competition, which may result in our competitors
discovering, developing or commercializing products before or more successfully
than we do.

The products that we seek to develop could compete with existing and
new products being created by pharmaceutical, biopharmaceutical, biotechnology
and medical device companies, as well as universities and other research
institutions. Many of our competitors are substantially larger than we are and
have substantially greater capital resources, research and development staffs
and facilities than we

30
have. Efforts by other biotechnology or pharmaceutical companies could render
our programs or products uneconomical or result in therapies superior to those
that we develop. Furthermore, many of our competitors are more experienced in
product development and commercialization, obtaining regulatory approvals and
product manufacturing. As a result, they may develop competing products more
rapidly and at a lower cost. These competitors may discover, develop and
commercialize products which render the products that we or our collaborative
partners are seeking to develop and commercialize non-competitive or obsolete.

Other companies are engaged in the research and development of
proteins for various applications. We believe that other biopharmaceutical
companies also are developing proteins, primarily growth factors, for use in the
local repair of orthopaedic and skeletal defects and in other indications. In
addition, a number of other companies are pursuing traditional therapies that
may compete with our products, including bone grafts and electrical stimulation
devices for the repair of orthopaedic and other skeletal defects.

Research in the fields of developmental biology and functional
genomics, which includes our work in oncology and renal disease, is highly
competitive. Our competitors in the field of developmental biology include,
among others, Amgen, Inc., Chiron Corporation, Exelixis, Inc., Genentech, Inc.
and Geron Corporation, as well as other private companies and major
pharmaceutical companies. Competitors in the genomics area include, among
others, public companies such as Axys Pharmaceuticals, Inc., Genome Therapeutics
Corporation, Human Genome Sciences, Inc., Incyte Pharmaceuticals, Inc.,
Millennium Pharmaceuticals, Inc. and Myriad Genetics, Inc., as well as private
companies and major pharmaceutical companies. We also compete with universities
and other research institutions, including those receiving funding from the
federally funded Human Genome Project. A number of entities are attempting to
identify and patent rapidly randomly sequenced genes and gene fragments,
typically without specific knowledge of the function of such genes or gene
fragments. In addition, we believe that certain entities are pursuing a gene
identification and characterization and product development strategy based on
positional cloning. Our competitors may discover, characterize and develop
important inducing molecules or genes in advance of us. We also face competition
from these and other entities in gaining access to DNA samples used in our
research and development projects. We expect competition to intensify in
genomics research and developmental biology as technical advances in the field
are made and become more widely known.

Research in the field of stem cells is also highly competitive. Our
competitors in the field of stem cells include, among others, Advance Tissue
Sciences, Inc., Bresagen, Ltd., Geron Corporation, Incara Pharmaceuticals
Corporation, StemCells, Inc. and Titan Pharmaceuticals, Inc., as well as other
private companies and major pharmaceutical companies.

In the field of tissue engineering and the treatment of damaged or
diseased tissue, we compete with several companies that are developing various
tissue replacement products. In addition, a number of biotechnology,
pharmaceutical and medical device companies are developing other types of
products as alternatives to tissue replacement/augmentation for a variety of
indications.

In the area of cardiovascular medicine, several approaches are
currently being developed by major medical device, pharmaceutical and
biotechnology companies to reduce restenosis or the re-narrowing of treated
blood vessels, associated with current cardiovascular therapies. These
approaches include, among others, local and systemic drug therapy, locally
delivered radiation, gene therapy, and improved stents and stenting techniques.

We rely on our strategic partners for support in our disease research
programs and intend to rely on our strategic partners for preclinical
evaluation and clinical development of our potential products and manufacturing
and marketing of any products. Some of our strategic partners are conducting
multiple product development efforts within each disease area that is the
subject of our strategic alliance with

31
them.  Our strategic alliance agreements may not restrict a strategic partner
from pursuing competing internal development efforts. Any of our product
candidates, therefore, may be subject to competition with a potential product
under development by a strategic partner.

Public attitudes towards stem cell research may negatively affect regulatory
approval or public perception of our products.

Our strategy for the development and commercialization of several of
our product candidates will depend in part on our collaboration with Aegera
Therapeutics, which involves stem cell research. Public acceptance of the use of
stem cell research in the development of new cell-based therapies for the
prevention or treatment of human diseases may negatively affect our ability to
execute on this part of our strategy. Public attitudes towards our business may
be influenced by claims that stem cell research is unsafe or unethical, and cell
therapy may not gain the acceptance of the public or the medical community.
Adverse effects in the field of cell therapy that have occurred or may occur in
the future also may result in greater governmental regulation of our product
candidates and potential regulatory delays relating to the testing or approval
of our product candidates.

The use of certain human stem cells gives rise to ethical, legal and
social issues regarding the appropriate use of these cells. In the event that
our research related to human stem cells becomes the subject of adverse
commentary or publicity, the market price for our common stock could be
significantly harmed.

The market may not be receptive to any products we develop due to their use of
new technologies or cost. Such a lack of reception would adversely affect
expected license revenues.

The commercial success of our products that are approved for marketing
will depend upon their acceptance by patients, the medical community and
third-party payors. OP-1, for instance, is a new form of treatment for
orthopaedic reconstruction, and will require a change from the current standard
of care. Products such as OP-1 may not gain commercial acceptance among
physicians, patients and third-party payors, even if necessary marketing
approvals have been obtained. We believe that recommendations and endorsements
by physicians will be essential for market acceptance of our products. If we are
not able to obtain a positive reception for our products, our expected license
revenues from sales of these products would be adversely affected.

Our growth could be limited if we are unable to attract and retain key
personnel and consultants.

Our success is substantially dependent on our ability to attract,
train and retain qualified scientific and technical personnel for the research
and development activities we conduct or sponsor. The loss of services of one or
more of our key employees or consultants could have a material adverse effect on
our business and operating results. Competition for hiring personnel in the
biotechnology industry is intense and locating candidates with the appropriate
qualifications is difficult. Although we expect to be able to attract and retain
sufficient numbers of highly-skilled employees for the foreseeable future, there
can be no assurance that we will be able to do so.

Any growth and expansion into areas and activities requiring
additional resources or expertise, such as regulatory affairs, compliance,
manufacturing and marketing, will require the addition of new key personnel. The
pool of personnel with the skills that we require is limited. Competition to
hire from this limited pool is intense, and we may not be able to hire, train,
retain or motivate such additional personnel.

If we fail to obtain an adequate level of reimbursement for our future products
or services by third-party payors, there may be no commercially viable markets
for our products.

The availability of reimbursement by governmental and other
third-party payors affects the market for any pharmaceutical product. These
third-party payors continually attempt to contain or reduce

32
the costs of healthcare by challenging the prices charged for medical products.
In some foreign countries, particularly the countries of the European Union,
the pricing of prescription pharmaceuticals is subject to governmental control.
We may not be able to sell our products profitably if reimbursement is
unavailable or limited in scope or amount.

In both the United States and some foreign jurisdictions, there have
been a number of legislative and regulatory proposals to change the healthcare
system. Further proposals are likely. The potential for adoption of some or all
of these proposals affects or will affect our ability to raise capital, obtain
additional collaborative partners and market our products.

If we or our collaborative partners obtain marketing approval for our
products, we expect to experience pricing pressure due to the trend toward
managed health care, the increasing influence of health maintenance
organizations and additional legislative proposals.

We could be exposed to significant risk from liability claims if we are unable
to obtain insurance at acceptable costs or otherwise protect ourselves against
potential product liability claims.

We may be subjected to product liability claims that are inherent in
the testing, manufacturing, marketing and sale of human health care products.
These claims could expose us to significant liabilities that could prevent or
interfere with the development or commercialization of our products. Product
liability claims could require us to spend significant time and money in
litigation or to pay significant damages. Product liability insurance is
generally expensive for biopharmaceutical companies such as ours. Although we
maintain limited product liability insurance coverage for the clinical trials of
our products, it is possible that we will not be able to obtain further product
liability insurance on acceptable terms, if at all, and that our present
insurance levels and insurance subsequently obtained will not provide adequate
coverage against all potential claims.

RISKS RELATING TO FINANCING

We have incurred substantial losses, we expect to continue to incur substantial
losses and we may never achieve profitability.

We expect to incur substantial operating losses for the foreseeable
future. We currently have no material sources of revenue from product sales or
license fees. It is uncertain when, if ever, we will develop significant revenue
sources or become profitable, even if we are able to commercialize products. In
addition, because certain of our product candidates consist of living cells,
they may be more expensive to manufacture than conventional therapeutic
products.

We expect to spend significant capital to fund all of our programs. As
a result, we will need to generate significant revenues in order to achieve
profitability. We cannot be certain whether or when this will occur because of
the significant uncertainties that affect our business.

We may require additional financing, which may be difficult to obtain and may
dilute your ownership interest in us.

We will require substantial funds to continue our research and
development programs, including clinical trials of our product candidates, and
to manufacture and market any products that are approved for commercial sale.
Our future capital requirements will depend on many factors, including the
following:

. continued progress in our research and development programs, as well
as the magnitude of these programs;

. the cost of any additional facilities requirements;

33
.    the timing, receipt and amount of milestone and other payments from
collaborative partners such as Stryker;

. the timing, payment and amount of milestone license, royalty
payments, research funding and royalties due to licensors of patent
rights and technology used to make, use and sell our product
candidates;

. the timing, receipt and amount of sales revenues and royalties from
our potential products in the market;

. the cost of clinical trials, manufacturing and commercialization
activities; and

. the costs involved in preparing, filing, prosecuting, maintaining and
enforcing patent claims and other patent-related costs, including
litigation costs and the costs of obtaining any required licenses to
technologies.

In 2002, we expect that we will seek additional funding through
collaborative arrangements and may seek additional funding through public or
private financings. However, the biotechnology market is highly volatile and,
depending on market conditions and the state of our research, development and
commercialization programs, additional financing may not be available to us on
acceptable terms or at all. If we fail to obtain such additional financing, our
ability to continue all of our research, development, commercialization,
manufacturing and marketing activities may be significantly diminished.

If we raise additional funds by issuing equity securities, dilution to
our stockholders will result. In addition, the terms of such a financing may
adversely affect the holdings or the rights of our stockholders. If we are
unable to obtain funding on a timely basis, we may be required to significantly
curtail one or more of our research or development programs. We also could be
required to seek funds through arrangements with collaborative partners or
others that may require us to relinquish rights to certain of our technologies,
product candidates or products which we would otherwise pursue independently.

RISKS RELATING TO CLINICAL AND REGULATORY MATTERS

We expect to rely primarily on others for clinical trials. If these clinical
trials are not successful, or if we are not able to obtain the necessary
regulatory approvals, we will not be able to complete development and
commercialization of our products.

In order to obtain regulatory approval for the commercial sale of our
product candidates, we will be required to complete extensive preclinical
studies as well as clinical trials in humans to demonstrate the safety and
efficacy of our products. We have limited experience in conducting clinical
trials and expect to rely primarily on contract research organizations and
collaborative partners for their performance and management of clinical trials.

We cannot assure you that clinical trials of OP-1 or other product
candidates under development will be sufficient to obtain regulatory approvals
for the indications being studied. Furthermore, the timing and completion of
Stryker's current and planned clinical trials of OP-1, as well as clinical
trials of other products, depend on, among other factors, the numbers of
patients required for approval and the rate at which those patients are
enrolled. Any increase in the required number of patients or decrease in
recruitment rates may result in increased costs, program delays or both. Also,
these products may not be effective in treating any of our targeted disorders or
may prove to have undesirable or unintended side effects, toxicities or other
characteristics that may prevent or limit their commercial use.

Progress in the area of orthopaedic reconstruction and dental
applications is within the exclusive control of Stryker. Even though Stryker has
received approval for the commercialization of OP-1 for nonunion fractures in
the United States, Europe, Australia and Canada, our business could be adversely

34
affected if Stryker is unable to obtain regulatory approval for the
commercialization of OP-1 to treat additional orthopaedic indications. For
example, Stryker filed a Pre- Market Approval (PMA) application for OP-1 to
treat nonunion fractures, which was accepted by the FDA in June 1999. On January
29, 2001, Stryker announced that it had received a not-approvable letter from
the FDA regarding its PMA for OP-1. As reported by Stryker, the deficiencies
cited in the letter related primarily to the lack of statistical equivalence as
compared to the control treatment of autograft in the clinical trial for tibial
nonunions. On October 18, 2001, Stryker received U.S. HDE approval for use as an
alternative to autograft in recalcitrant long bone nonunions where use of
autograft is unfeasible and alternative treatments have failed. The FDA has
recommended that Stryker conduct a new study to obtain approval without the HDE
limitation. As shown by the Stryker example, the timing of the regulatory
process is unpredictable and it is uncertain whether or when approvals will be
obtained from the FDA or other regulatory agencies for any use of OP-1.

We could also experience delays in our preclinical trials of any of
our product candidates, unfavorable results in any development program, failure
to obtain regulatory approval for the commercialization of any of our products
or failure to achieve market acceptance of any approved products. Any of these
events would have a negative impact on our ability to market a product.

The development process necessary to obtain regulatory approval is complex,
costly and lengthy and we may not obtain necessary regulatory approvals.

We and our collaborative partners must obtain regulatory approval for
ongoing development activities as well as for marketing or selling any of our
products. We may not receive regulatory approvals to conduct clinical trials of
our products or to manufacture or market our products. In addition, regulatory
agencies may not grant approvals on a timely basis or may revoke or
significantly modify previously granted approvals. Any delay in obtaining, or
failure to obtain, approvals could adversely affect the marketing of our
products and our ability to generate product revenue.

The process of obtaining FDA and other required regulatory approvals
is lengthy and expensive. The time required for FDA and other clearances or
approvals is uncertain and typically takes a number of years, depending on the
complexity and novelty of the product. The process of obtaining FDA and other
required regulatory approvals for many of our products is further complicated
because some of these products use non-traditional or novel materials in non-
traditional or novel ways, and the regulatory officials have little precedent to
follow. We have only limited experience in filing and prosecuting applications
for the conduct of clinical studies and for obtaining marketing approval. Any
delay in obtaining or failure to obtain required clearance or approvals would
reduce our ability to generate revenues from the affected product. We also plan
to rely significantly on contract research organizations and collaborative
partners as we build internal capabilities.

Our analysis of data obtained from preclinical and clinical activities
is subject to confirmation and interpretation by regulatory authorities, which
could delay, limit or prevent regulatory approval. Any regulatory approval to
market a product may be subject to limitations on the indicated uses for which
we may market the product. These limitations may restrict the size of the market
for the product and affect reimbursement by third party payors.

We also are subject to numerous foreign regulatory requirements
governing the design and conduct of the clinical trials and the manufacturing
and marketing of our future products outside of the United States. The
approval procedure varies among countries and the time required to obtain
foreign approvals often differs from that required to obtain FDA approvals.
Moreover, approval by the FDA does not ensure approval by regulatory
authorities in other countries, and vice versa.

Our ability to conduct preclinical research is also subject to new and
evolving regulations governing the use of human and embryonic tissues for
isolating new growth factors and genes which may be useful in identifying and
developing new therapeutic product candidates. Our ability to conduct

35
critical research on which our future development activities are based could be
restricted or delayed depending on the outcome of pending rulemaking
proceedings governing the use of these tissues and the collection of related
genetic information.

Even if we obtain marketing approval, our products will be subject to ongoing
regulatory oversight which may affect our ability to successfully commercialize
any products we develop.

Even if we receive regulatory approval of a product, the approval may
be subject to limitations on the indicated uses for which the product is
marketed or contain requirements for costly post-marketing follow-up studies.
After we obtain marketing approval for any product, the manufacturer and the
manufacturing facilities for that product will be subject to continual review
and periodic inspections by the FDA and other regulatory authorities. The
subsequent discovery of previously unknown problems with the product, or with
the manufacturer or facility, may result in restrictions on the product or
manufacturer, including withdrawal of the product from the market.

If we fail to comply with applicable regulatory requirements, we may
be subject to fines, suspension or withdrawal of regulatory approvals, product
recalls, seizure of products, operating restrictions, and criminal prosecution.

We may not be able to comply with other governmental regulations, which could
subject us to penalties and otherwise result in the limitation of our
operations.

In addition to comprehensive regulation by the FDA, we are subject to
regulation under the Occupational Safety and Health Act, the Environmental
Protection Act, the Toxic Substances Control Act, the Research Conservation and
Recovery Act, regulations administered by the Nuclear Regulatory Commission,
national restrictions on technology transfer, import, export and customs
regulations and certain other local, state or federal regulation. From time to
time, other federal agencies and congressional committees have indicated an
interest in implementing further regulation of biotechnology applications. We
are not able to predict whether any such regulations will be adopted or whether,
if adopted, such regulations will apply to our business, or whether we would be
able to comply with any applicable regulations.

Our research and development activities involve the controlled use of
hazardous materials and chemicals. Although we believe that our safety
procedures for handling and dispersing of such materials comply with all
applicable laws and regulations, we cannot completely eliminate the risk of
accidental contamination or injury from these materials.

RISKS RELATING TO PRODUCT MANUFACTURING AND SALES

We have no commercial manufacturing capabilities and may be unable to expand
our manufacturing capabilities as required to meet demand for our products.

We have limited experience or capabilities in large-scale commercial
manufacturing of any of our product candidates. Our current facilities and staff
are inadequate for commercial production and distribution of products. We have
no current plans to manufacture any of our products in-house. We may not be able
to attract, train and retain the required personnel or to expand our
manufacturing capability to manufacture commercial quantities of any of our
products in a timely manner should the need arise. Our manufacturing scale-up
efforts may not be successful, and we may not be able to establish or maintain
reliable, high-volume manufacturing capabilities at commercially reasonable
costs on a timely basis, or at all.

We currently have no sales capabilities and may be unable to create a sales
force as required to effectively commercialize our products.

36
We currently have no sales capabilities and may be unable to create a
sales force as required to effectively commercialize our products. We have no
current plans to maintain our own sales force and intend to rely upon our
alliance partners to market and sell products developed as a result of our
collaborations. We may not be able to establish such arrangements on terms that
are favorable to us. In addition, we may not be able to attract, train and
retain the required personnel or to expand our sales capabilities in a timely
manner should the need arise.

RISKS RELATING TO INTELLECTUAL PROPERTY

We may not be able to obtain patent protection for our discoveries and we may
infringe patent rights of third parties.

The patent positions of pharmaceutical and biotechnology companies,
including us, are generally uncertain and involve complex legal, scientific and
factual questions.

Our success depends in significant part on our ability to:

. obtain patents;

. protect trade secrets;

. operate without infringing upon the proprietary rights of others; and

. prevent others from infringing on our proprietary rights.

Patents may not issue from any of the patent applications that we own
or license. If patents do issue, the allowed claims may not be sufficiently
broad to protect our technology. In addition, issued patents that we own or
license may be challenged, invalidated or circumvented. Our patents also may not
afford us protection against competitors with similar technology. Because patent
applications in the United States have been maintained in secrecy until patents
issue, third parties may have filed or maintained patent applications for
technology used by us or covered by our pending patent applications without our
being aware of these applications.

We may not hold proprietary rights to some patents related to our
proposed products. In some cases, these patents may be owned or controlled by
third parties. As a result, we or our collaborative partners may be required to
obtain licenses under third-party patents to develop and commercialize some of
our proposed products or services. If licenses are not available to us on
acceptable terms, we or our collaborative partners will not be able to develop
and commercialize these products or services.

If we are not able to keep our trade secrets confidential, our technology and
information may be used by others to compete against us.

We also rely significantly upon unpatented proprietary technology,
information, processes and know-how. We seek to protect this information through
confidentiality agreements with our employees, consultants and other third-party
contractors as well as through other security measures. These confidentiality
agreements may be breached, and we may not have adequate remedies for any such
breach. In addition, our trade secrets may otherwise become known or be
independently developed by competitors.

We may become involved in expensive patent litigation or other intellectual
property proceedings which could result in liability for damages or stop our
development and commercialization efforts.

There have been substantial litigation and other proceedings regarding
the complex patent and other intellectual property rights in the pharmaceutical
and biotechnology industries. We may become a party to patent litigation or
other proceedings regarding intellectual property rights.

37
Situations in which we may become involved in patent litigation or
other intellectual property proceedings include:

. initiation of litigation or other proceedings against third parties
to enforce our patent rights;

. initiation of litigation or other proceedings against third parties
to seek to invalidate the patents held by these third parties or to
obtain a judgment that our products or services do not infringe the
third parties' patents;

. participation in interference or opposition proceedings to determine
the priority of invention if our competitors file patent applications
that claim technology also claimed by us;

. initiation of litigation by third parties claiming that our processes
or products or the intended use of our products infringe their patent
or other intellectual property rights; and

. initiation of litigation by us or third parties seeking to enforce
contract rights relating to intellectual property which may be
important to our business.

The cost to us of any patent litigation or other proceeding, even if
resolved in our favor, could be substantial. Some of our competitors may be able
to sustain the cost of such litigation or proceedings more effectively than we
can because of their substantially greater financial resources. If a patent
litigation or other intellectual property proceeding is resolved unfavorably to
us, we or our collaborative partners may be enjoined from manufacturing or
selling our products and services without a license from the other party and be
held liable for significant damages. Moreover, we may not be able to obtain
required licenses on commercially acceptable terms or any terms at all, and we
could be liable for lost profits if we are found to infringe a valid patent, and
treble damages if we are found to have willfully infringed such patent rights.
Patent cases frequently involve highly complex scientific matters, and each
party has the right to seek a trial by jury. Accordingly, litigation results are
highly unpredictable and we or our collaborative partners may not prevail in any
patent proceeding.

Uncertainties resulting from the initiation and continuation of patent
litigation or other proceedings could damage our ability to compete in the
marketplace. Patent litigation and other proceedings may also absorb significant
management time and expense.

If we breach any of the agreements under which we license or acquire
intellectual property from others, we could lose intellectual property rights
that are important to our business.

We are a party to intellectual property licenses and agreements that
are important to our business and expect to enter into similar licenses and
agreements in the future. These licenses and agreements impose various research,
development, commercialization, sublicensing, royalty, indemnification,
insurance and other obligations on us. If we fail to comply with these
requirements, we could lose intellectual property rights that are important to
our business.

If licensees or assignees of our intellectual property rights breach
any of the agreements under which we have licensed or assigned our intellectual
property to them, we could be deprived of important intellectual property rights
and future revenue.

We are a party to intellectual property out-licenses, collaborations
and agreements that are important to our business and expect to enter into
similar agreements with third parties in the future. Under these agreements, we
license or transfer intellectual property to third parties and impose various
research, development, commercialization, sublicensing, royalty,
indemnification, insurance, and other obligations on them. If a third party
fails to comply with these requirements, we generally retain the right to
terminate the agreement, and to bring a legal action in court or in arbitration.
With respect to the agreement with Stryker regarding OP-1 and the agreement with
Micromet regarding our single chain antibody technology, the assignment of
intellectual property is irrevocable in the event of a breach of the agreement.
Accordingly, it may be more difficult to enforce our rights under these
agreements in the absence of litigation.

38
RISKS RELATED TO OUR COMMON STOCK

We expect that our stock price will fluctuate significantly.

Our common stock is listed on the Nasdaq National Market under the
ticker symbol "CRIS." The stock market, particularly in recent years, has
experienced significant volatility particularly with respect to
biopharmaceutical and biotechnology based stocks. The volatility of
biopharmaceutical and biotechnology based stocks often does not relate to the
operating performance of the companies represented by the stock. Factors that
could cause such volatility in the market price of the common stock include:

. announcements of the introduction of new products by us or our
competitors;

. market conditions in the biotechnology sectors;

. rumors relating to us or our competitors;

. litigation or public concern about the safety of our potential
products;

. actual or anticipated variations in our quarterly operating results;

. deviations in our operating results from the estimates of securities
analysts;

. adverse results or delays in clinical trials;

. FDA or international regulatory actions; and

. general market conditions.

If stockholders do not receive dividends, stockholders must rely on stock
appreciation for any return on their investment in us.

We have not declared or paid cash dividends on any of our capital
stock. We currently intend to retain earnings, if any, for future growth and,
therefore, do not anticipate paying cash dividends in the future. As a result,
only appreciation of the price of the common stock will provide a return to
investors.

We have anti-takeover defenses that could delay or prevent an acquisition and
could adversely affect our stock price.

Provisions of our certificate of incorporation, our bylaws and
Delaware law may have the effect of deterring unsolicited takeovers or delaying
or preventing changes in control of our management, including transactions in
which our stockholders might otherwise receive a premium for their shares over
then current market prices. In addition, these provisions may limit the ability
of stockholders to approve transactions that they may deem to be in their best
interest. Our certificate of incorporation permits the board of directors to
issue preferred stock without stockholder approval. In addition to delaying or
preventing an acquisition, the issuance of a substantial number of preferred
shares could adversely affect the price of the common stock.

Our certificate of incorporation provides for staggered terms to be
served by the board of directors which makes it difficult for stockholders to
change the composition of the board of directors in any one year. In addition,
our bylaws restrict the ability of stockholders to call a special meeting of the
stockholders. These provisions may have the effect of preventing or delaying
changes in control of our management.


39
ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We invest cash balances in excess of operating requirements in
short-term marketable securities, generally corporate debt and government
securities with an average maturity of less than one year. All marketable
securities are considered available for sale. At December 31, 2001, the fair
market value of these securities amounted to approximately $12,279,000 with net
unrealized gains of approximately $14,000 included as a component of
stockholders' equity. Because of the quality of the investment portfolio and the
short-term nature of the marketable securities, we do not believe that interest
rate fluctuations would impair the principal amount of the securities. Our
investments are investment grade securities and deposits are with investment
grade financial institutions. We believe that the realization of losses due to
changes in credit spreads is unlikely as we expect to hold our debt to maturity.

As of December 31, 2001, in addition to the marketable securities
discussed above, we held 53,571 shares of Exelixis, Inc. common stock with a
fair market value as of that date of approximately $890,000. The value of these
shares could fluctuate based on the price of Exelixis common stock and market
conditions.

At December 31, 2001, we had approximately $3,061,000 outstanding
under fixed rate debt and capital lease agreements which are not subject to
fluctuations in interest rates and approximately $5,000,000 outstanding under a
term loan agreement with an adjustable rate equal to risk-adjusted LIBOR. In
addition, approximately $2,072,000, including accrued interest of $72,000, was
outstanding under a convertible subordinated note payable to Becton Dickinson.
Lastly, approximately $675,000, including accrued interest of $1,000, was
outstanding under a convertible promissory note payable to an affiliate of Elan
in connection with Curis Newco.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The financial statements are included beginning at F-1. See Index to the
Financial Statements.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

Not applicable.

40
PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Information concerning directors that is required by this Item 10 is
set forth in the proxy statement to be provided to stockholders in connection
with our 2002 Annual Meeting of Stockholders (the "Proxy Statement") under the
headings "Directors and Nominees for Director" and "Section 16(a) Beneficial
Ownership Reporting Compliance," which information is incorporated herein by
reference. The name, age, and position of each executive officer of the Company
is set forth under the heading "Executive Officers of the Company" in Part I of
this Annual Report on Form 10-K, which information is incorporated herein by
reference.

ITEM 11. EXECUTIVE COMPENSATION

Information required by this Item 11 is set forth in the Proxy
Statement under the headings "Compensation of Executive Officers" and "Director
Compensation," which information is incorporated herein by reference.
Information specified in Items 402(k) and 402(1) of Regulation S-K and set forth
in the Proxy Statement is not incorporated by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Information required by this Item 12 is set forth in the Proxy
Statement under the heading "Security Ownership of Certain Beneficial Owners and
Management," which information is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Information required by this Item 13 is set forth in the Proxy
Statement under the heading "Compensation of Executive Officers Employment
Agreements," which information is incorporated herein by reference.

41
PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON
FORM 8-K

(23) Documents Filed as a Part of this Annual Report on Form 10-K:

(23) Financial Statements. The Consolidated Financial
--------------------
Statements are included in the 2001 Annual Report, portions
of which are filed as an exhibit to this Annual Report on
Form 10-K. The Consolidated Financial Statements include:
Consolidated Balance Sheets, Consolidated Statements of
Operations, Consolidated Statements of Cash Flows,
Consolidated Statements of Changes in Stockholder's Equity,
and Notes to Consolidated Financial Statements.

(23) Exhibits. The Exhibits listed in the Exhibit Index
--------
immediately preceding such Exhibits are filed as part of
this Annual Report on Form 10-K.

(23) Current Reports on Form 8-K.

(23) On February 19, 2002, the Company filed a Current Report
on Form 8-K to report under Item 5 (Other Events) that
the Company had realigned its business to focus its
strategic directions. No financial statements were
required to be filed with this Report.

42
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

Curis, Inc.

By: /s/ Daniel R. Passeri
-------------------------------------
Daniel R. Passeri
President and Chief Executive Officer

Date: March 28, 2002

43
Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
Registrant and in the capacities and on the dates indicated.

<TABLE>
<CAPTION>

Signature Title Date
--------- ----- ----
<S> <C> <C>

/s/ Daniel R. Passeri President and Chief Executive Officer March 28, 2002
----------------------- (Principal Executive Officer)
Daniel R. Passeri

/s/ George A. Eldridge Vice President, Chief Financial Officer, March 28, 2002
----------------------- Secretary and Treasurer (Principal
George A. Eldridge Financial and Accounting Officer)


/s/ Doros Platika, M.D. Chairman of the Board of Directors March 28, 2002
-----------------------
Doros Platika, M.D.

/s/ Susan B. Bayh Director March 28, 2002
-----------------------
Susan B. Bayh

/s/ Martyn D. Greenacre Director March 28, 2002
-----------------------
Martyn D. Greenacre

/s/ Ruth B. Kunath Director March 28, 2002
-----------------------
Ruth B. Kunath

/s/ James R. McNab, Jr. Director March 28, 2002
-----------------------
James R. McNab, Jr.

/s/ Douglas A. Melton Director March 28, 2002
----------------------
Douglas A. Melton

/s/ James A. Tobin Director March 28, 2002
-----------------------
James R. Tobin
</TABLE>

44
CURIS, INC. AND SUBSIDIARIES

Index

Page

Report of Independent Public Accountants F-2

Independent Auditors' Report F-3

Consolidated Balance Sheets as of December 31, 2001 and 2000 F-4

Consolidated Statements of Operations and Comprehensive Loss
for the Years Ended December 31, 2001, 2000 and 1999 F-5

Consolidated Statements of Stockholders' Equity for the Years
Ended December 31, 2001, 2000 and 1999 F-6

Consolidated Statements of Cash Flows for the Years Ended
December 31, 2001, 2000 and 1999 F-8

Notes to Consolidated Financial Statements F-10

F-1
Report of Independent Public Accountants

To the Board of Directors and Stockholders of
Curis, Inc. and Subsidiaries:

We have audited the accompanying consolidated balance sheets of Curis, Inc.
(f.k.a. Creative BioMolecules, Inc.) and its subsidiaries as of December 31,
2001 and 2000, and the related consolidated statements of operations and
comprehensive loss, stockholders' equity and cash flows for the years then
ended. These financial statements are the responsibility of Curis, Inc.'s
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Curis, Inc. and its
subsidiaries as of December 31, 2001 and 2000 and the results of their
operations and their cash flows for the years then ended, in conformity with
accounting principles generally accepted in the United States.

/s/ Arthur Andersen LLP

Boston, Massachusetts
February 14, 2002

F-2
Independent Auditors' Report

To the Board of Directors and Stockholders of
Curis, Inc and Subsidiaries:

We have audited the consolidated balance sheet of Curis, Inc. (f.k.a. Creative
BioMolecules, Inc.) and its subsidiary as of December 31, 1999 and the related
consolidated statements of operations, comprehensive loss, stockholders'
equity, and cash flows for the year ended December 31, 1999. These financial
statements are the responsibility of the Curis, Inc.'s management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis
for our opinion.

In our opinion, such financial statements present fairly, in all material
respects, the financial position of Curis, Inc. and its subsidiary at December
31, 1999 and the results of their operations and their cash flows for the year
ended December 31, 1999 in conformity with generally accepted accounting
principles.

As discussed in Note 1 to the Consolidated Financial Statements, on February
14, 2000, Curis, Inc. entered into a merger agreement with Ontogeny, Inc. and
Reprogenesis, Inc. to form Curis, Inc.

/s/ Deloitte & Touche LLP

Boston, Massachusetts
February 15, 2000

F-3
CURIS, INC. AND SUBSIDIARIES

Consolidated Balance Sheets

December 31,
ASSETS 2001 2000

Current Assets:
Cash and cash equivalents $ 38,938,062 $ 52,414,312
Marketable securities 12,278,916 22,654,393
Marketable securities--Restricted 890,350 729,905
Accounts receivable 374,600 358,388
Prepaid expenses and other current assets 781,019 920,485
Notes receivable--Officer 500,000 --
Due from joint venture 957,798 --
------------- --------------
Total current assets 54,720,745 77,077,483
------------- --------------
Property and Equipment, net 11,060,711 7,866,591
------------- --------------
Other Assets:
Notes receivable--Officer 200,000 230,000
Intangible assets, net (Note 4) 73,807,125 97,145,664
Deposits and other assets 4,967,636 362,252
------------- --------------
Total other assets 78,974,761 97,737,916
------------- --------------
$ 144,756,217 $ 182,681,990
============= ==============
LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
Debt and lease obligations, current portion $ 3,109,613 $ 1,971,609
Accounts payable 1,967,260 2,187,824
Accrued liabilities 5,942,511 5,553,641
Deferred revenue, current portion 81,688 --
Due to joint venture 772,097 --
------------- --------------
Total current liabilities 11,873,169 9,713,074
------------- --------------
Debt and Lease Obligations, net of current
portion 4,951,324 4,155,150
------------- --------------
Convertible Notes Payable 2,506,852 --
------------- --------------
Deferred Revenue, net of current portion 12,063,845 --
------------- --------------
Preferred stock, $0.01 par value-
Authorized--5,000,000 shares at
December 31, 2001 and 2000
Issued and outstanding--1,000 shares at
December 31, 2001
Series A Redeemable Preferred Stock--1,426
shares authorized and 1,000
shares issued and outstanding 12,341,381 --
-------------- --------------

Commitments (Notes 7 and 9)

Stockholders' Equity:
Common stock, $0.01 par value-
Authorized--125,000,000 shares at December 31,
2001 and 2000
Issued and outstanding - 32,329,228 and
31,383,585 shares at December 31,
2001 and 2000, respectively 323,292 313,836
Additional paid-in capital 664,889,578 662,339,492
Notes receivable (1,291,932) (1,204,596)
Deferred compensation (9,616,795) (22,893,619)
Accumulated deficit (554,135,679) (471,945,648)
Accumulated other comprehensive income 851,182 2,204,301
------------- --------------

Total stockholders' equity 101,019,646 168,813,766
------------- --------------

$ 144,756,217 $ 182,681,990
============= ==============

The accompanying notes are an integral part of these consolidated financial
statements

F-4
CURIS, INC. AND SUBSIDIARIES

Consolidated Statements of Operations and Comprehensive Loss

<TABLE>
<CAPTION>

-------------Year Ended December 31,-----------
2001 2000 1999
<S> <C> <C> <C>
Revenues:
Research and development contracts and government grants $ 967,928 $ 997,078 $ 3,159,460
License fees and royalties 118,575 26,491 52,400
---------------- -------------- -------------
Total revenues 1,086,503 1,023,569 3,211,860
---------------- -------------- -------------

Costs and Expenses:
Research and development (a) 29,072,068 17,423,895 10,434,560
General and administrative (a) 10,492,525 9,330,256 5,524,077
Stock-based compensation (a) 10,358,302 16,628,218 64,000
Amortization and impairment charge related to intangible assets 23,338,539 14,450,894 808,017
Loss on disposition of fixed assets -- 203,904 --
In-process research and development -- 294,800,000 --
Reorganization costs (reversal) -- (38,391) 255,701
---------------- -------------- -------------
Total costs and expenses 73,261,434 352,798,776 17,086,355
---------------- -------------- -------------
Loss from operations (72,174,931) (351,775,207) (13,874,495)
---------------- -------------- -------------
Equity in Loss from Joint Venture (Note 9) (13,453,140) -- --
---------------- -------------- -------------
Other Income (Expenses):
Interest income 2,854,027 1,900,693 1,924,313
Other income 1,694,193 5,200 1,777
Interest expense (783,799) (481,310) (161,385)
---------------- -------------- -------------
Total other income 3,764,421 1,424,583 1,764,705
---------------- -------------- -------------
Net loss (81,863,650) (350,350,624) (12,109,790)

Accretion and Repurchase Costs on Series 1998/A Preferred Stock -- -- (2,395,559)
Accretion on Series A Redeemable Preferred Stock (326,381) -- --
---------------- -------------- -------------
Net loss applicable to common stockholders $ (82,190,031) $ (350,350,624) $ (14,505,349)
================ ============== =============
Basic and Diluted Net Loss per Common Share $ (2.58) $ (19.80) $ (1.36)
================ ============== =============
Weighted Average Common Shares for Basic and Diluted Net Loss
Computation 31,858,923 17,693,966 10,681,547
================ ============== =============
Net Loss $ (81,863,650) $(350,350,624) $(12,109,790)
================ ============== =============

Unrealized Gain (Loss) on Marketable Securities 116,398 2,235,102 (136,262)
---------------- -------------- -------------

Comprehensive loss $ (81,747,252) $(348,115,522) $(12,246,052)
================ ============== =============
(a) The following summarizes the departmental
allocation of the stock-based compensation charge:

Research and development $ 6,156,323 $ 8,358,400 $ --
General and administrative 4,201,979 8,269,818 64,000
---------------- -------------- -------------
Total stock-based compensation $ 10,358,302 $ 16,628,218 $ 64,000
================ ============== =============

The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

F-5
CURIS, INC. AND SUBSIDIARIES

Consolidated Statements of Stockholders' Equity

<TABLE>
<CAPTION>
Common Stock Additional Paid-in Notes
Shares Amount Capital Receivable

<S> <C> <C> <C> <C>
Balance, December 31, 1998 10,337,241 $ 103,372 $ 142,381,729 $ --
Conversions of Series 1998/A Preferred Stock into
common stock 393,418 3,934 2,974,065 --
Warrant exercises into common stock 119,198 1,192 946,430 --
Other issuances of common stock 149,677 1,497 966,751 --
Stock-based compensation -- -- 64,000 --
Unrealized loss on marketable securities -- -- -- --
Accretion and repurchase costs on Series 1998/A
Preferred Stock -- -- (2,395,559) --
Net loss -- -- -- --
------------ ----------- --------------- -----------
Balance, December 31, 1999 10,999,534 109,995 144,937,416 --
Issuance of common stock, net of issuance costs of
approximately $3.5 million 5,200,000 52,000 43,296,458 --
Issuance of common stock related to the
acquisitions of Ontogeny and Reprogenesis 14,452,913 144,529 447,249,424 --

Stock-based compensation from issuance of
Reprogenesis restricted common stock for
services -- - 1,623,000 --
Warrant exercises into common stock 113,119 1,131 306,430 --
Other issuances of common stock 478,313 4,784 5,044,174 --
Exercise of common stock options through
issuance of notes receivable 139,706 1,397 1,129,983 (1,131,380)
Interest on notes receivable -- -- -- (73,216)
Stock-based compensation from modification of
option agreements -- -- 3,538,440 --
Reversal of deferred compensation related to
common stock options -- -- 17,329,822 --
Amortization of deferred compensation -- -- -- --
Deferred compensation related to forfeited options -- -- (2,115,655) --
Unrealized gain on marketable securities -- -- -- --
Net loss -- -- -- --
------------ ----------- --------------- -----------
Balance, December 31, 2000 31,383,585 $ 313,836 $ 662,339,492 $(1,204,596)

<CAPTION>
Accumulated
Other Total
Deferred Accumulated Comprehensive Stockholders'
Compensation Deficit Income (Loss) Equity

<S> <C> <C> <C> <C>
Balance, December 31, 1998 $ -- $(109,485,234) $ 105,461 $ 33,105,328
Conversions of Series 1998/A Preferred Stock into
common stock -- -- -- 2,977,999
Warrant exercises into common stock -- -- -- 947,622
Other issuances of common stock -- -- -- 968,248
Stock-based compensation -- -- -- 64,000
Unrealized loss on marketable securities -- -- (136,262) (136,262)
Accretion and repurchase costs on Series 1998/A
Preferred Stock -- -- -- (2,395,559)
Net loss -- (12,109,790) -- (12,109,790)
------------- -------------- ----------- -------------
Balance, December 31, 1999 -- (121,595,024) (30,801) 23,421,586
Issuance of common stock, net of issuance costs of
approximately $3.5 million -- -- -- 43,348,458
Issuance of common stock related to the
acquisitions of Ontogeny and Reprogenesis (19,146,230) -- -- 428,247,723

Stock-based compensation from issuance of
Reprogenesis restricted common stock for
services -- -- -- 1,623,000
Warrant exercises into common stock -- -- -- 307,561
Other issuances of common stock -- -- -- 5,048,958
Exercise of common stock options through
issuance of notes receivable -- -- -- --
Interest on notes receivable -- -- -- (73,216)
Stock-based compensation from modification of
option agreements -- -- -- 3,538,440
Reversal of deferred compensation related to
common stock options (17,329,822) -- -- --
Amortization of deferred compensation 11,466,778 -- -- 11,466,778
Deferred compensation related to forfeited options 2,115,655 -- -- --
Unrealized gain on marketable securities -- -- 2,235,102 2,235,102
Net loss -- (350,350,624) -- (350,350,624)
------------- -------------- ---------- -------------
Balance, December 31, 2000 $ (22,893,619) $(471,945,648) $2,204,301 $ 168,813,766

The accompanying notes are an integral part of these consolidated financial statements
</TABLE>

F-6
CURIS, INC. AND SUBSIDIARIES

Consolidated Statements of Stockholders' Equity

(Continued)

<TABLE>
<CAPTION>
Common Stock Additional Paid-in Notes
Shares Amount Capital Receivable
<S> <C> <C> <C> <C>
Balance, December 31, 2000 31,383,585 $ 313,836 $ 662,339,492 $ (1,204,596)
Issuance of common stock, net of issuance costs of
approximately $147,000 546,448 5,464 3,847,268 --
Other issuances of common stock 328,528 3,285 947,474 --
Issuance of common stock for license fee 10,667 107 97,896 --
Issuance of common stock as repayment of note
payable 60,000 600 309,600 --
Interest on notes receivable -- -- -- (87,336)
Stock-based compensation from modification of
option agreement and options granted at below
Market value -- -- 138,050 --
Amortization of deferred compensation -- -- -- --
Reversal of deferred compensation related to
forfeited options -- -- (2,260,433) --
Reversal of deferred compensation related to
options granted to non-employees -- -- (796,139) --
Realized gain on sale of Exelixis common stock -- -- -- --
Unrealized gain on marketable securities -- -- -- --
Discount on subordinated debt -- -- 266,370 --
Accretion of Series A redeemable preferred stock
dividend -- -- -- --
Net loss -- -- -- --
------------ ---------- -------------- --------------
Balance, December 31, 2001 32,329,228 $ 323,292 $ 664,889,578 $ (1,291,932)
============ ========== ============== ===============
<CAPTION>

Accumulated
Other Total
Deferred Accumulated Comprehensive Stockholders'
Compensation Deficit Income (Loss) Equity

<S> <C> <C> <C> <C>
Balance, December 31, 2000 $ (22,893,619) $ (471,945,648) $ 2,204,301 $ 168,813,766
Issuance of common stock, net of issuance costs of
approximately $147,000 -- -- -- 3,852,732
Other issuances of common stock -- -- -- 950,759
Issuance of common stock for license fee -- -- -- 98,003
Issuance of common stock as repayment of note
payable -- -- -- 310,200
Interest on notes receivable -- -- -- (87,336)
Stock-based compensation from modification of
option agreement and options granted at below
market value -- -- -- 138,050
Amortization of deferred compensation 10,220,252 -- -- 10,220,252
Reversal of deferred compensation related to
forfeited options 2,260,433 -- -- --
Reversal of deferred compensation related to
options granted to non-employees 796,139 -- -- --
Realized gain on sale of Exelixis common stock -- -- (1,469,517) (1,469,517)
Unrealized gain on marketable securities -- -- 116,398 116,398
Discount on subordinated debt -- -- -- 266,370
Accretion of Series A redeemable preferred stock
dividend -- (326,381) -- (326,381)
Net loss -- (81,863,650) -- (81,863,650)
------------ -------------- -------------- --------------
Balance, December 31, 2001 $ (9,616,795) $ (554,135,679) $ 851,182 $ 101,019,646
============ ============== ============== ==============

The accompanying notes are an integral part of these consolidated financial statements
</TABLE>

F-7
CURIS, INC. AND SUBSIDIARIES
Consolidated Statements of Cash Flows

<TABLE>
<CAPTION>
Year Ended December 31,
2001 2000 1999
<S> <C> <C> <C>
Cash Flows from Operating Activities:
Net loss $ (81,863,650) $ (350,350,624) $ (12,109,790)
Adjustments to reconcile net loss to net cash used in operating
activities-
Depreciation and amortization 3,288,575 1,308,673 989,490
Amortization of intangible assets 23,338,539 9,839,437 -
Stock-based compensation expense 10,358,302 16,628,218 64,000
Equity in loss of joint venture 13,453,140 -- --
Issuance of common stock in lieu of cash for license fee 98,003 -- --
Reorganization expense adjustment -- 39,141 --
Noncash interest expense on notes payable 83,487 12,811 --
Noncash interest income on notes receivable (215,189) (73,216) --
Impairment costs of patents -- 4,611,261 --
Loss on disposition of fixed assets -- 203,904 --
Write-off of in-process research and development -- 294,800,000 --
Deferred patent and application costs -- -- 537,781
Increase (decrease) in operating assets and liabilities,
net of assets acquired-
Accounts receivable (16,212) (97,507) 608,936
Prepaid expenses and other current assets 147,352 52,660 154,137
Accounts payable and accrued liabilities (591,183) (14,002) (2,012,555)
Due to joint venture (957,798) -- --
Deferred contract revenue 8,000,000 (661,279) (3,000,000)
--------------- -------------- -------------
Total adjustments 56,987,017 326,650,101 (2,658,211)
--------------- -------------- -------------
Net cash used in operating activities (24,876,633) (23,700,523) (14,768,001)
--------------- -------------- -------------
Cash Flows from Investing Activities:

Purchase of marketable securities (24,387,748) (15,036,205) (9,359,549)
Sale of marketable securities 33,249,661 12,506,525 30,903,094
Expenditures for property and equipment (1,745,949) (479,036) (298,932)
Proceeds from sale of assets -- 687,500 --
Expenditures for patents -- (563,882) (776,586)
Notes receivable from related parties (500,000) -- -
Repayment of note receivable from officer -- -- 116,668
Decrease (increase) in other long-term assets (187,366) 108,919 --
Marketable securities received in acquisition of Ontogeny and Reprogenesis -- 17,829,518 --
Cash received from acquisition of Ontogeny and Reprogenesis, net -- 10,788,955 --
--------------- -------------- -------------
Net cash provided by investing activities 6,428,598 25,842,294 20,584,645
--------------- -------------- -------------
Cash Flows from Financing Activities:
Proceeds from issuance of common stock, net of issuance costs 3,852,732 43,348,458 --
Proceeds from other issuances of common stock 950,759 5,048,958 968,248
Proceeds from warrant exercises -- 307,561 947,622
Issuance of convertible note payable 2,000,000 -- --
Repayment of note payable to Genetics Institute (83,800) -- --
Repurchase of Series 1998/A Preferred Stock -- -- (22,470,347)
Repayments of obligations under capital leases (1,603,273) (1,183,505) (249,142)
--------------- -------------- -------------
Net cash provided by (used in) financing activities 5,116,418 47,521,472 (20,803,619)
--------------- -------------- -------------

Effect of Exchange Rates on Cash and Cash Equivalents (144,632) -- --
--------------- -------------- -------------
Net (Decrease) Increase in Cash and Cash Equivalents (13,476,250) 49,663,243 (14,986,975)

Cash and Cash Equivalents, beginning of period 52,414,312 2,751,069 17,738,044
--------------- -------------- -------------
Cash and Cash Equivalents, end of period $ 38,938,062 $ 52,414,312 $ 2,751,069
=============== ============== =============

The accompanying notes are an integral part of these consolidated financial statements
</TABLE>

F-8
CURIS, INC. AND SUBSIDIARIES
Consolidated Statements of Cash Flows

<TABLE>
<CAPTION>
--------Year Ended December 31,----------
2001 2000 1999
<S> <C> <C> <C>
Supplemental Disclosure of Noncash Investing and Financing Activities:
Property and equipment purchased under financing or capital lease obligations $ 3,905,542 $ 1,094,458 $ 313,512
=========== ============ ==========
Repayment of notes payable by issuance of 60,000 shares of common stock $ 310,200 $ -- $ --
=========== ============ ==========
Conversion of Series 1998/A Preferred Stock $ -- $ -- $2,977,999
=========== ============ ==========
Issuance of notes receivable for exercise of stock options $ -- $ 1,131,380 $ --
=========== ============ ==========
Issuance of note receivable and receipt of common stock in Micromet $ 4,145,533 $ -- $ --
=========== ============ ==========
Issuance of convertible note payable to EPIL to fund the Company's 80.1%
interest in joint venture $ 673,929 $ -- $ --
=========== ============ ==========
Issuance of Series A redeemable preferred stock to acquire initial 80.1% interest in
joint venture $12,015,000 $ -- $ --
=========== ============ ==========
Acquisition of Ontogeny and Reprogenesis:
Fair value of assets acquired $ -- $ 38,952,383 $ --
Assumed liabilities -- (9,143,881) --
Cost in excess of net assets acquired -- 125,123,232 --
In-process research and development cost acquired -- 294,800,000 --
Acquisition costs incurred -- (2,337,781) --
=========== ============ ==========
Fair value of common stock issued $ -- $447,393,953 $ --
=========== ============ ==========

The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

F-9
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(1) OPERATIONS

On February 14, 2000, Creative BioMolecules, Inc. (Creative) announced
that it would merge with Ontogeny, Inc. (Ontogeny) and Reprogenesis,
Inc. (Reprogenesis) to form a public company named Curis, Inc. (Curis or
the Company). Curis, the successor to Creative, recorded the merger as
a purchase of Reprogenesis and Ontogeny.

Curis is engaged in the discovery of drug targets and the development of
therapeutics based upon the human body's own mechanisms for tissue
formation, maintenance and repair. The Company has identified key
regulators responsible for turning on the mechanisms for tissue repair
used by the body in response to trauma, injury or disease. We believe
this approach has been validated with the approval of OP-1 for bone
repair in four major markets (United States Humanitarian Device
Exemption, Europe, Australia and Canada). Independently and in strategic
alliances, the Company is focusing its research efforts on identifying
and elucidating key regulators of tissue repair having application for
diseases representing potentially large market opportunities that are
underserved by current therapeutic alternatives. These diseases include
kidney disease, cancer and diseases of the central nervous system.

The Company announced on February 14, 2002 that it is realigning its
research and development programs and narrowing the focus of its
resources on its signaling pathway and stem cell technologies. As part
of this realignment, the Company suspended clinical product development
efforts on Vascugel for coronary artery disease and terminated clinical
development efforts on Chondrogel, its program for the treatment of
vesicoureteral reflux, and its basal cell carcinoma oncology candidate.
In connection with the above, the Company reduced its staff by 35
employees, including three executive officers. The Company estimates
that it will incur cash expenditures in 2002 of approximately $3,500,000
related to the realignment that include severance payments of
approximately $1,300,000, and costs associated with the termination and
suspension of its clinical programs and related facility decommissioning
costs of approximately $2,200,000. As a result of the realignment, the
Company may record an impairment charge to its goodwill and assembled
workforce intangible assets in the first quarter of 2002 in accordance
with the provisions of Statement of Financial Accounting Standards
(SFAS) No.142, Goodwill and Other Intangible Assets(See Notes 3(n) and
19).

The Company is subject to risks common to companies in the
biotechnology industry including, but not limited to, development by
the Company or its competitors of new technological innovations,
dependence on key personnel, protection of proprietary technology and
compliance with FDA government regulations and approval requirements
as well as the ability to grow the Company's business and obtain
adequate financing to fund this growth.

(2) MERGER

Curis, Inc. was incorporated on February 14, 2000, and was formed on
July 31, 2000. Creative (a Delaware corporation), Ontogeny (a Delaware
corporation), and Reprogenesis (a Texas corporation), merged (the
Merger) with and into the Company, pursuant to an Agreement and Plan
of Merger dated as of February 14, 2000 (the Merger Agreement). On
July 31, 2000, the Company, as the surviving company of the Merger,
assumed the rights and obligations of Creative, Ontogeny and
Reprogenesis. Immediately after the Merger, the Company was owned
approximately 43% by the former stockholders of Creative, 38% by the
former stockholders of Ontogeny and 19% by the former stockholders of
Reprogenesis. Consequently, for accounting purposes, the Company is
deemed to be the successor to Creative, and the historical financial
statements of Creative have become the historical financial statements
of the Company. The Merger has been accounted for as a purchase of
Ontogeny and Reprogenesis in accordance with Accounting Principles
Board (APB) Opinion No. 16, Accounting for Business Combinations, and

F-10
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

accordingly, Ontogeny's and Reprogenesis' operating results since the
Merger date are included in the accompanying financial statements.

Pursuant to the Merger Agreement, the following conversion ratios were
applied to the outstanding securities of Creative, Ontogeny and
Reprogenesis:

. Creative's common stockholders and the holders of options or warrants
to acquire the common stock of Creative received, or are entitled to
receive, upon the exercise of options or warrants, an aggregate number
of shares of the Company's common stock equal to 0.3000 multiplied by
the number of shares of Creative common stock outstanding or subject
to options or warrants;

. Ontogeny's capital stockholders and the holders of options or warrants
to acquire the capital stock of Ontogeny received, or are entitled to
receive, upon the exercise of options or warrants, an aggregate number
of shares of the Company's common stock equal to 0.2564 multiplied by
the number of shares of Ontogeny capital stock outstanding or subject
to options or warrants; and

. Reprogenesis' capital stockholders and the holders of options or
warrants to acquire the capital stock of Reprogenesis received, or are
entitled to receive, upon the exercise of options or warrants, an
aggregate number of shares of the Company's common stock equal to
0.1956 multiplied by the number of shares of Reprogenesis capital
stock outstanding or subject to options or warrants.

In connection with the Merger, the Company approved a 0.30-for-1 stock
split of the Company's common stock. All share and per share amounts of
common stock for all periods have been retroactively adjusted to reflect
the stock split. In addition, the Company's certificate of incorporation
was amended and restated among other things, to change its authorized
capital stock to 125,000,000 shares of $0.01 par value common stock and
5,000,000 shares of $0.01 par value preferred stock.

In accordance with APB Opinion No. 16, the purchase price for Ontogeny
and Reprogenesis has been allocated to the assets and liabilities of
Ontogeny and Reprogenesis based on their fair values. The aggregate
purchase price based on the fair market value of Creative common stock
was $300,731,000 and $149,000,000 for Ontogeny and Reprogenesis,
respectively, including the value of the outstanding options and warrants
exchanged for options and warrants to purchase the common stock of Curis
and the transaction costs related to the Merger.

The purchase price of Ontogeny and Reprogenesis was allocated to the
assets acquired based upon an independent appraisal which used proven
valuation tools and techniques. Significant portions of the purchase
price were identified as intangible assets which included in-process
research and development (IPR&D) of $294,800,000 and assembled workforce
of $500,000.The fair value of the IPR&D relating to current in-process
research and development projects was recorded as an expense as of the
merger date. The excess of the purchase price over the fair value of
identified tangible and intangible net assets of $105,477,000 has been
allocated to goodwill. Through December 31, 2001, intangible assets were
being amortized over their estimated useful lives of four to five years.
Beginning January 1, 2002, the Company will adopt SFAS No. 142, Goodwill
and Other Intangible Assets, and will cease amortization of goodwill and
assembled workforce. Going forward, the goodwill will be subject to an
annual assessment for impairment based on fair value.

F-11
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

The acquired IPR&D consists of development work to date on 11 primary
projects and six primary projects for Ontogeny and Reprogenesis,
respectively. The technology resulting from these development efforts
offer no alternative uses in the event that they prove not to be
feasible. If a technology fails to achieve FDA approval or was considered
for an alternate use, it would be subjected to the risk associated with
another series of clinical trials. The new use would also face regulatory
risk associated with the FDA approval process.

The aggregate purchase price of $449,731,000, including acquisition
costs, was allocated as follows:

Current assets $ 32,082,000
Property, plant and equipment 6,328,000
Assembled workforce 500,000
In-process research and development 294,800,000
Deferred compensation 19,146,000
Other assets 542,000
Goodwill 105,477,000
Assumed liabilities (9,144,000)
--------------
$ 449,731,000
==============

F-12
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Unaudited pro forma operating results for the Company, assuming the
Merger occurred at the beginning of the periods presented are as follows:

Year Ended December 31,
2000 1999

Revenues $ 4,486,633 $ 9,966,730
Net loss $ (98,674,701) $ (74,393,085)
Net loss per share $ (3.78) $ (3.40)

For purposes of these pro forma operating results, the IPR&D was assumed
to have been written off prior to the pro forma periods, so that the
operating results presented only include recurring costs.

(3) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company considers its most critical accounting policies, defined
as those which are both important to the portrayal of the Company's
financial condition and results and require management's most
difficult, subjective or complex judgments, often as a result of the
need to make estimates about the effect of matters that are
inherently uncertain. The Company has identified its critical
accounting policies to be those related to revenue recognition and
the valuation of intangibles and long-lived assets.

(a) USE OF ESTIMATES

The preparation of the Company's consolidated financial
statements in conformity with accounting principles generally
accepted in the United States requires management to make
estimates and assumptions that affect the reported amounts and
disclosure of certain assets and liabilities at the balance
sheet date. Such estimates include the collectability of
receivables, the carrying value of property and equipment and
intangible assets and the value of certain liabilities. Actual
results may differ from such estimates.

(b) RECLASSIFICATIONS

Certain amounts in the prior years have been reclassified to
conform to the current year's presentation.

(c) CONSOLIDATION

The accompanying consolidated financial statements include the
Company and its wholly owned subsidiaries. Intercompany balances
have been eliminated in consolidation.

(d) REVENUE RECOGNITION

The Company's research and development contract revenue is
primarily derived from contracts with biotechnology and
pharmaceutical companies. These contracts may include payments
for research related activities, license fees, research and
development milestones and royalties. The Company follows the
provisions of the Securities and Exchange Commission's Staff
Accounting Bulletin No. 101 (SAB No. 101), Revenue Recognition.
In accordance with SAB No. 101, the Company recognizes revenue
related to research activities as they are performed, so long as
there is persuasive evidence of an arrangement, the fee is fixed
or determinable, and collection of the related receivable is

F-13
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

probable. For the years ended December 31, 2001 and 2000, the
Company has not recognized revenue relating to research and
development services provided under its corporate collaboration
agreements.

Amounts received for license fees are deferred and recognized as
services are performed over the performance period of the
contract. Amounts received for milestones will be recognized
upon achievement of the milestone as long as the milestone is
deemed to be substantive and the Company has no other
performance obligations. In the event the Company has remaining
performance obligations, the portion of the milestone payment
equal to the lesser of the percentage of the services performed
through that date or the non-refundable cash received will be
recognized. The percentage of services performed is based on the
ratio of the number of direct labor hours performed to date to
total direct labor hours the Company is obligated to perform
under the related contract, as determined on a full-time
equivalent basis. The remainder will be recognized
proportionately as the remaining services are performed. Royalty
revenue will be recognized upon the sale of the related
products, provided the royalty amounts are fixed or determinable
and collection of the related receivable is reasonably assured.

Amounts received prior to satisfying the above revenue
recognition criteria are recorded as deferred revenue in the
accompanying balance sheets. Amounts not expected to be
recognized during the year ended December 31, 2002 are
classified as long-term deferred revenue. As of December 31,
2001, the Company has short- and long-term deferred revenue of
approximately $82,000 and $12,064,000, respectively, related to
the Micromet AG (see Note 9(c)) multiple element arrangement.

Government grant revenues consist of grant awards from the
Department of Health and Human Services and the National
Institute of Standards and Technology (NIST) (see Note 8).
Revenue is recognized under government grants as the services
are provided and payment is assured under the terms of the grant.

During the years ended December 31, 2001, 2000 and 1999, total
revenues from major customers as a percent of total revenues of
the Company were as follows:

Year Ended December 31,
2001 2000 1999
Biogen, Inc -% -% 95%
Stryker Corporation 9% 69% 3%
NIST 88% 24% -%

(e) RESEARCH AND DEVELOPMENT

Research and development costs are charged to operations as
incurred. Certain research and development projects are
partially funded by research and development contracts and
government grants, and the expenses related to these activities
are included in research and development costs.

(f) CASH EQUIVALENTS AND MARKETABLE SECURITIES

F-14
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Cash equivalents consist of short-term, highly liquid investments
purchased with maturities of three months or less. All other liquid
investments are classified as marketable securities. In accordance
with Statement of Financial Accounting Standards (SFAS) No. 115,
Accounting for Certain Investments in Debt and Equity Securities,
all of the Company's marketable securities have been designated as
available-for-sale and are stated at market value with any
unrealized holding gains or losses included as a component of
stockholders' equity and any realized gains and losses recorded in
the statement of operations in the period the securities are sold.

The amortized cost, unrealized gains (losses) and fair value of
marketable securities available-for-sale as of December 31, 2001,
with maturity dates ranging between one and 11 months and with a
weighted average maturity of 5.2 months are as follows:

Unrealized
Amortized Cost Gain (Loss) Fair Value

U.S. government obligations $ 4,682,000 $ 12,000 $ 4,694,000
Commercial paper 1,273,000 1,000 1,274,000
Corporate bonds and notes 6,310,000 1,000 6,311,000
Corporate equity securities 53,000 837,000 890,000
------------ ------------ ------------

Available-for-sale marketable
Securities $ 12,318,000 $ 851,000 $ 13,169,000
============ ============ ============

The amortized cost, unrealized gains (losses) and fair value of
marketable securities available-for-sale as of December 31, 2000,
with maturity dates ranging between one and 12 months and with a
weighted average maturity of 3.7 months are as follows:

Unrealized
Amortized Cost Gain (Loss) Fair Value

U.S. government obligations $ 2,575,000 $ 3,000 $ 2,578,000
Commercial paper 8,265,000 1,000 8,266,000
Corporate bonds and notes 10,286,000 (43,000) 10,243,000
Corporate equity securities 54,000 2,243,000 2,297,000
------------ ------------ ------------

Available-for-sale marketable
Securities $ 21,180,000 $ 2,204,000 $ 23,384,000
============ ============ ============

At December 31, 2001, the Company held 53,571 shares of Exelixis,
Inc. (Exelixis) common stock. The shares were obtained through the
exercise of a warrant to purchase common stock on March 12, 2001.
The sale of the underlying common shares is prohibited until March
13, 2002, one year from the date the warrant was exercised. As a
result of this restriction, the market value of the shares is
included in the accompanying consolidated balance sheet under the
category "Marketable securities - Restricted" with a fair market
value of approximately $890,000 and $730,000 as of December 31, 2001
and 2000, respectively.

At December 31, 2000, the Company held 107,142 shares of Exelixis
common stock which are included in the Company's balance sheet as of
December 31, 2000, under the category "Marketable securities" with a
fair market value of approximately $1,567,000.

F-15
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

During the first quarter of 2001, the Company sold all shares of
Exelixis common stock for total net proceeds of approximately
$1,470,000, which was also the gain recognized as the Company had
recorded a zero cost basis in these shares.

(g) FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company's financial instruments consist mainly of cash and cash
equivalents, marketable securities, accounts receivable, notes
receivable, accounts payable, convertible notes payable, and debt
and lease obligations. The estimated fair values of the Company's
financial instruments have been determined by the Company using
available market information and appropriate valuation methodologies.

Cash and cash equivalents, accounts and notes receivable, and
accounts payable are reflected in the accompanying consolidated
financial statements at cost, which approximates fair value due to
the short-term nature of these instruments. The fair value of
marketable securities is based on current quoted market values. The
convertible notes payable, and certain other debt and lease
obligations have fixed rates of interest and will be subject to
fluctuations in fair value during their terms. As of December 31,
2001, the fair value of these instruments approximates their
carrying amount due to the short-term maturity of these instruments
and the short lapse of time from their issuance. The Company has a
term loan with a lender to finance equipment purchases and leasehold
improvements that has a variable rate of interest. The carrying
amount of this debt obligation approximates fair value due to the
underlying market conditions and short lapse of time from its
issuance (see Note 6).

(h) PLANT AND EQUIPMENT

Purchased equipment is recorded at cost. Leased equipment is
recorded at the lesser of cost or the present value of the minimum
lease payments. Depreciation and amortization are provided on the
straight-line method over the estimated useful lives of the related
assets or the remaining terms of the leases, as follows:

Estimated
Asset Classification Useful Life

Laboratory equipment and computers 3-5 years
Leasehold improvements Life of the lease
Office furniture and equipment 5 years
Equipment under lease obligations Life of the lease

(i) OTHER INTANGIBLE ASSETS

The Company has filed applications for United States and foreign
patents covering aspects of its technology. Certain costs related to
successful patent applications and certain costs related to pending
applications from which the Company is currently deriving economic
benefit, are capitalized and amortized over the estimated useful
life of the patent, generally 16 to 20 years, using the
straight-line method. Accumulated amortization was approximately
$570,000 and $445,000 at December 31, 2001 and 2000, respectively.
During the year ended December 31, 2000, the Company recognized an
impairment charge of approximately $4,611,000 to reduce the carrying
value of certain patents (see Note 3(j)). The Company evaluates all
patent costs and, to the extent there is uncertainty as to the
realizability of such costs, they are expensed as incurred.

F-16
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(j) LONG-LIVED ASSETS

The Company applies the provisions of SFAS No. 121, Accounting for
the Impairment of Long-Lived Assets and for Long-Lived Assets to Be
Disposed Of. SFAS No. 121 requires that the Company continually
evaluates whether events or circumstances have occurred that
indicate the carrying value of these assets may have been impaired.
Any write-downs are to be treated as permanent reductions in the
carrying amounts of the assets. Accordingly, the Company evaluates
the possible impairment of goodwill and other long-lived assets
based on the projected cash flows of the related asset. If such
assets are considered to be impaired, the impairment to be
recognized is measured by the amount by which the carrying amount of
the asset exceeds the fair value of the asset. Assets to be disposed
of are reported at the lower of the carrying amount or fair value
less the cost to sell.

During the third quarter of the year ended December 31, 2000, the
Company performed a review of its capitalized patent costs as part of
evaluating its post-merger strategy. This review resulted in an
impairment charge of approximately $4,611,000 to reduce the carrying
value of those patents determined not to be beneficial or not expected
to be utilized in future operations and which have no alternative
future use. This amount has been included under amortization of
intangibles in the accompanying consolidated statement of operations
for the year ended December 31, 2000.

(k) BASIC AND DILUTED LOSS PER COMMON SHARE

The Company applies SFAS No. 128, Earnings per Share, which
establishes standards for computing and presenting earnings per
share. Basic and diluted net loss per share were determined by
dividing net loss, after giving effect to the accretion on Series A
Redeemable Preferred Stock in 2001 and the accretion and repurchase
costs on Series 1998/A Preferred Stock in 1999, by the weighted
average common shares outstanding during the period. Diluted net
loss per common share is the same as basic net loss per common share
for all periods presented, as the effect of the potential common
stock equivalents is antidilutive due to the Company's net loss
position for all periods presented. Antidilutive securities, which
consist of stock options and warrants, that are not included in
diluted net loss per common share were 8,272,803, 6,899,088 and
1,834,513 as of December 31, 2001, 2000 and 1999, respectively.

(l) STOCK-BASED COMPENSATION

Stock options issued to employees under the Company's stock option
and employee stock purchase plans are accounted for under APB
Opinion No. 25, Accounting for Stock Issued to Employees (see Note
14). All stock-based awards to non-employees are accounted for at
their fair value in accordance with SFAS No. 123, Accounting for
Stock-Based Compensation, and Emerging Issues Task Force (EITF)
Issue No. 96-18, Accounting for Equity Instruments that are Issued
to Other than Employees.

(m) DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

SFAS No. 133, Accounting for Derivative Instruments and Hedging
Activities, establishes accounting and reporting standards for
derivative instruments, including

F-17
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

certain derivative instruments embedded in other contracts, and for
hedging activities. SFAS No. 133, as amended by SFAS No. 137 and
SFAS No. 138, is effective for all fiscal quarters of fiscal years
beginning after June 15, 2000. The Company's adoption of SFAS No.
133 during fiscal 2000 did not have an impact on its financial
position or results of operations. As of December 31, 2001 and 2000,
the Company did not have any derivative instruments.

(n) NEW ACCOUNTING PRONOUNCEMENTS

In July 2001, the Financial Accounting Standards Board (FASB) issued
SFAS No. 141, Business Combinations, and SFAS No. 142, Goodwill and
Other Intangible Assets. SFAS No. 141 requires that all business
combinations initiated after June 30, 2001 be accounted for using
the purchase method of accounting. Effective January 1, 2002, the
Company will adopt the provisions of SFAS No. 142. This statement
affects the Company's treatment of goodwill and other intangible
assets. The statements require that goodwill existing at the date of
adoption be reviewed for possible impairment and that impairment
tests be periodically repeated at least annually, with impaired
assets written down to fair value. Additionally, existing goodwill
and intangible assets must be assessed and classified within the
SFAS No. 142's criteria. Intangible assets with finite useful lives
will continue to be amortized over those periods. Amortization of
goodwill and intangible assets with indeterminable lives will cease.

The Company has until June 30, 2002 to complete the first step of
the transitional goodwill impairment test. However, the amounts and
assumptions used in the transitional goodwill impairment test shall
be measured as of the beginning of the year of initial application.
If the carrying amount of the net assets of a reporting unit
(including goodwill) exceeds the fair value of that reporting unit,
the second step of the transitional goodwill impairment test will be
completed by the Company as soon as possible, but no later than the
end of fiscal year 2002. The Company has not determined the amount,
if any, of impairment due to the adoption of SFAS No. 142.

An impairment loss recognized as a result of a transitional goodwill
impairment test, if any, shall be recognized by the Company as the
effect of a change in accounting principle. Although a transitional
impairment loss for goodwill may be measured by the Company in other
than the first interim reporting period of fiscal year 2002, the
Company is required to report the loss, if any, in the first interim
period of fiscal year 2002, irrespective of the period in which it
is measured, consistent with paragraph 10 of SFAS No. 3, Reporting
Accounting Changes in Interim Financial Statements. The Company
currently intends to complete its transitional assessment during the
first quarter of 2002 and to record the impairment, if any, at such
time. In the event that the assessment is not completed in the first
quarter of 2002 and the Company has a transitional impairment loss
relating to its goodwill, the Company will restate its reported
fiscal year 2002 interim periods to effect the change in accounting.

The Company recorded expense related to the amortization of goodwill
of approximately $23,114,000 and $9,641,000 during the years ended
December 31, 2001 and 2000, respectively. The Company recorded
expense related to the amortization of assembled workforce of
$100,000 and $42,000 during the years ended December 31, 2001 and
2000, respectively. As of December 31, 2001, the Company determined
that all of its

F-18
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

intangible assets, other than goodwill and assembled workforce, have
finite lives and therefore, the Company will continue to amortize
these intangible assets in future periods.

In August 2001, the FASB issued SFAS No. 144, Accounting for the
Impairment or Disposal of Long-Lived Assets, which supercedes SFAS
No. 121, Accounting for the Impairment of Long-Lived Assets and for
Long-Lived Assets to Be Disposed Of. SFAS No. 144 further refines
the requirements of SFAS No. 121 that companies (1) recognize an
impairment loss only if the carrying amount of a long-lived asset is
not recoverable based on its undiscounted future cash flows and (2)
measure an impairment loss as the difference between the carrying
amount and fair value of the asset. In addition, SFAS No. 144
provides guidance on accounting and disclosure issues surrounding
long-lived assets to be disposed of by sale. The Company will be
required to adopt SFAS No. 144 on January 1, 2002. The adoption of
this statement is not expected to have a material impact on its
financial position or results of operations.

(4) INTANGIBLE ASSETS

Intangible assets consist of the following:

December 31,
2001 2000

Goodwill $ 105,477,000 $ 105,477,000
Patents 1,297,000 1,297,000
Assembled workforce 500,000 500,000
------------- -------------
107,274,000 107,274,000
Less--Accumulated amortization (33,467,000) (10,128,000)
------------- -------------

$ 73,807,000 $ 97,146,000
============= =============

Through December 31, 2001, goodwill totaling $105,477,000 and assembled
workforce of $500,000 were being amortized over their estimated useful
lives of four to five years. Beginning January 1, 2002, the Company will
adopt SFAS No. 142 and will cease amortization of goodwill and assembled
workforce. Going forward, the goodwill and certain purchased intangibles
will be subject to an annual assessment for impairment based on fair
value. Accumulated amortization as of December 31, 2001 was approximately
$32,755,000 and $142,000 for goodwill and assembled workforce,
respectively. Accumulated amortization as of December 31, 2000 was
approximately $9,641,000 and $42,000 for goodwill and assembled
workforce, respectively. Patent accumulated amortization (see Note 3(i))
was approximately $570,000 and $445,000 at December 31, 2001 and 2000,
respectively.

F-19
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(5) PROPERTY AND EQUIPMENT

Property and equipment consist of the following:

December 31,
2001 2000

Laboratory equipment and computers $ 1,542,000 $ 1,710,000
Equipment and furniture under notes
payable and capital leases 7,413,000 5,538,000
Leasehold improvements 5,158,000 2,752,000
Leasehold improvements under notes
payable and capital leases 4,973,000 3,431,000
Office furniture and equipment 458,000 462,000
------------ -----------

19,544,000 13,893,000

Less--Accumulated depreciation and
amortization (8,483,000) (6,026,000)
------------ -----------

Total $ 11,061,000 $ 7,867,000
============ ===========

(6) LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS

Long-term debt and capital lease obligations consist of the following at
December 31, 2001 and 2000:

December 31,
2001 2000

Notes payable to financing agencies for capital
purchases $ 5,450,000 $ 1,946,000
Obligations under capital leases, net of
approximately $49,000 and $73,000 discount
at December 31, 2001 and 2000, respectively 2,611,000 3,787,000
Notes payable to Genetics Institute for
technology purchases -- 394,000
Convertible subordinated note payable to Becton
Dickinson, net of $240,000 discount, including
approximately $72,000 of capitalized interest 1,832,000 --
Convertible promissory note agreement with
Elan Pharma International, including
approximately $1,000 of capitalized interest 675,000 --
----------- -----------

10,568,000 6,127,000

Less--Current portion (3,110,000) (1,972,000)
----------- -----------

Total long-term debt and capital lease
obligations, including convertible debt $ 7,458,000 $ 4,155,000
=========== ===========

In December 2000, the Company entered into a term loan agreement with a
lender to finance equipment purchases and leasehold improvements in its
facilities. The agreement made available to the Company an aggregate
principal amount of $5,000,000, of which $5,000,000 was outstanding as of
December 31, 2001. Interest is variable and is computed based on
risk-adjusted

F-20
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

LIBOR (4.38% as of December 31, 2001). Interest is payable on any
outstanding principal on a monthly basis beginning December 2000.
Principal amounts outstanding related to equipment purchases are payable
in 12 equal quarterly installments beginning on March 31, 2002. Amounts
outstanding for leasehold improvements are payable in 11 equal quarterly
installments beginning on March 31, 2002, with a final balloon payment
due on December 31, 2004. Substantially all of the assets of the Company,
excluding intellectual property and assets already pledged under existing
financing arrangements, serve as collateral for the loan. Additionally,
the Company must comply with certain financial covenants related to
minimum liquidity ratio, minimum tangible capital base, and a minimum
unencumbered cash balance. As of December 31, 2001, the Company was in
compliance with all covenants under this agreement.

In June 1998, Reprogenesis entered into equipment and leasehold
improvements loan agreements with a maximum borrowing capacity of
$2,000,000. The total amount borrowed under these agreements was
$1,772,000 at an interest rate of 12.84%. The principal and interest on
any borrowings are to be repaid over 48 equal monthly installments. The
Company assumed these loan agreements as part of the Merger. As of
December 31, 2001, approximately $450,000 was outstanding under these
agreements and the Company was in compliance with all covenants under
these agreements.

The Company leases equipment under various capital lease arrangements.
Monthly payments range from $363 to $21,170 and maturities range from
January 2002 to July 2004. The initial terms of the leases range from 36
months to 60 months and bear interest at rates ranging from 11.0% to
16.3%. As of December 31, 2001, approximately $2,660,000 was outstanding
under these agreements and the Company was in compliance with all
covenants under these agreements.

On May 31, 2001 the Company issued 60,000 shares of common stock valued
at $310,000 and paid cash totaling $195,000, including accrued interest
of $111,000, to repay in full all notes payable due to Genetics Institute
for technology purchases.

On June 26, 2001, the Company received $2,000,000 from Becton Dickinson
under a convertible subordinated note payable (the Note) in connection
with the exercise of an option to negotiate a collaboration agreement.
The Note is repayable, at the option of the Company, in either cash or
upon issuance of the Company's common stock at any time up to its
maturity date of June 26, 2006. The Note bears interest at 7%, which is
below the fair market interest rate on date of issue which the Company
estimates to be 11%. The difference between the market interest rate of
11% and the coupon interest rate of 7% is being amortized as interest
expense over the remaining term of the Note. As of December 31, 2001,
approximately $2,072,000, including approximately $72,000 of accrued
interest, was outstanding under the Note.

On July 18, 2001, the Company entered into an $8,010,000 convertible
promissory note agreement (Note Agreement) with Elan Pharma International
Limited (EPIL). The Note Agreement bears interest at 8% per annum through
July 18, 2005 and 6% per annum thereafter, compounded and payable
semi-annually. Under the terms of the Note Agreement, the default maturity
date is July 18, 2007. However, EPIL has the option to convert all or any
portion of the outstanding principal amount into the Company's common stock
under certain circumstances at any time after July 18, 2003, at a per share
price of $8.63, subject to adjustment under certain circumstances, as
defined. The borrowings under the Note Agreement are subject to Elan's
consent and restricted to the Company's development funding of Curis Newco
(see Note 9(b)). On December 27, 2001, the Company received approximately
$674,000 from EPIL under the Note Agreement. As of December 31, 2001,
approximately $675,000, including approximately $1,000 of capitalized

F-21
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

interest, was outstanding under the Note Agreement.

Maturities of long-term debt and future capital lease obligations are
approximately as follows:

Year Ending December 31,

2002 $ 3,821,000
2003 2,510,000
2004 3,042,000
2005 --
2006 1,832,000
Thereafter 675,000
-----------
Total minimum payments 11,880,000
Less--Amount representing interest (1,312,000)
-----------

Principal obligation 10,568,000
Less--Current portion (3,110,000)
-----------

$ 7,458,000
===========

(7) COMMITMENTS

(a) Operating Leases

The Company has noncancellable operating lease agreements for office
and laboratory space and certain office and laboratory equipment
through December 2007. The Company's remaining operating lease
commitments for all leased facilities and equipment with an initial
or remaining term of at least one year, net of anticipated sublease
revenues, are approximately as follows:

Year Ending December 31,
2002 $ 2,000,000
2003 2,060,000
2004 2,043,000
2005 2,042,000
2006 1,488,000
Thereafter 1,250,000
------------

Total minimum payments $ 10,883,000
============

Rent expense for all operating leases was approximately $2,017,000,
$1,372,000 and $841,000 for the years ended December 31, 2001, 2000
and 1999, respectively, net of facility sublease income of
approximately $405,000 and $268,000 in 2001 and 2000, respectively.

In November 2000, the Company entered into a sublease for the
remaining facility lease in Hopkinton, Massachusetts, previously
occupied by Creative. The sublease commenced on November 15, 2000
and terminated on June 30, 2001, also the termination date of the
Company's original lease on this facility. In April 2000, the
Company amended one of its

F-22
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Hopkinton, Massachusetts, facility leases previously occupied by
Creative whereby the lease terminated on July 31, 2000.

During 2000, the Company entered into a sublease for its Boston,
Massachusetts, facility previously occupied by Creative, commencing
on July 1, 2000. The sublease terminates on July 31, 2002, also the
termination date of the Company's original lease on this facility.

(b) License Agreements

The Company licenses a significant portion of its technology from
several universities and foundations. In exchange for the right to
use licensed technology in its research and development efforts, the
Company has entered into various license agreements. These
agreements generally stipulate that the Company pay an annual
license fee and is obligated to pay royalties on future product
sales, if any, resulting from the underlying licensed technology. In
addition, many of the agreements commit the Company to make
contractually defined payments upon the attainment of scientific or
clinical milestones. The Company expenses license fee payments over
their respective service periods and expenses royalty payments as
related product sales are recorded. The Company accrues expenses for
scientific and clinical milestones over the period that the work
required to meet the milestone is completed, provided that the
Company estimates that the achievement of the milestone is probable.
The Company incurred the following amounts for license fees,
milestone payments and royalties payable on licensed technology for
the years ended December 31, 2001, 2000 and 1999 as follows:

Year Ended December 31,

2001 2000 1999

License fees $ 691,000 $ 188,000 $ 23,000
Milestone payments -- -- --
Royalties -- -- 23,000
--------- --------- ---------
Total expenses incurred in connection with
license agreements $ 691,000 $ 188,000 $ 46,000
========= ========= =========

In connection with Reprogenesis' termination of a collaboration, for
which the Company retained its rights to the underlying technology,
the Company is required to make milestone payments of $3,500,000
contingent upon regulatory approval and commercialization of the
reflux and incontinence products, as defined. No milestone payments
have been made on this agreement through December 31, 2001.

F-23
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(8) GOVERNMENT GRANTS

Effective September 20, 1998, Reprogenesis received a grant award for its
vesicoureteral reflux product under the Orphan Drug Program of the
Department of Health and Human Services. This grant award provides for
cost reimbursement funding over a three-year period of approximately
$323,000 for certain patient costs associated with a vesicoureteral
reflux Phase III clinical trial to the extent the Company complies with
all of the requirements governing the grant.

Effective November 1, 1999, Reprogenesis received a grant award for its
cardiovascular project from the advanced technology program of the
National Institute of Standards and Technology (NIST) to support the
development of the Company's cardiovascular products, Vascugel(TM) and
Vascuject. The Company has assumed this award in conjunction with the
Merger. Under the terms of the grant award, the Company will receive
$2,000,000 in cost reimbursement funding to be paid at a rate of
approximately $666,000 annually over a three-year period. Funding under
the NIST grant is contingent on the Company meeting minimum cost-sharing
and other requirements, as defined in the financial assistance award and
annual government appropriations for the award. During the first quarter
of 2002, the Company requested that this award be suspended while the
Company reviewed its desire to continue development efforts on this
project. The award can be reinstated, if approved by NIST, upon the
Company's election to continue its development program as outlined under
the terms of the grant award.

On October 5, 2000, the Company announced the receipt of a second
$2,000,000 grant from NIST to support the development of a new class of
biomaterials designed to enable surgical procedures that augment, repair
or regenerate lost structural tissue or physiological function. The grant
period is from January 1, 2001 to December 31, 2003. Under the terms of
the grant award, the Company will receive $2,000,000 in cost
reimbursement funding to be paid at a rate of approximately $666,000
annually over a three-year period. Funding under the NIST grant is
contingent on the Company meeting minimum cost-sharing and other
requirements, as defined in the financial assistance award and annual
government appropriations for the award. During the first quarter of
2002, the Company requested that this award be suspended while the
Company reviewed its desire to continue development efforts on this
project. The award can be reinstated, if approved by NIST, upon the
Company's election to continue its development program as outlined under
the terms of the grant award.

The Company recognized approximately $968,000 and $319,000 of government
grant revenue under these awards for the years ended December 31, 2001
and 2000, respectively.

(9) RESEARCH AND DEVELOPMENT AND SIGNIFICANT COLLABORATIONS

(a) STRYKER CORPORATION

Creative had an original agreement with Stryker to identify and
develop OP-1, a bone-inducing protein, as orthopaedic reconstruction
and dental therapy products. In exchange for research funding,
future royalties and revenue from commercial manufacturing, Creative
developed OP-1 as a therapy for orthopedic reconstruction and
cartilage regeneration and supplied Stryker material for use in
clinical trials. Creative restructured

F-24
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

its agreements with Stryker in November 1998 to provide Stryker with
the exclusive rights to manufacture OP-1 products in these fields.
At that time, Stryker acquired Creative's commercial manufacturing
operations. As a result, Stryker has the exclusive right to develop,
market, manufacture and sell products based on OP-1 proteins for use
in orthopedic reconstruction and dental therapies and is required to
pay the Company royalties on such commercial sales. In 2001, Stryker
paid the Company approximately $97,000 in royalties.

Under the agreement with Stryker, as amended, Stryker has exclusive
rights to develop, market and sell products incorporating bone and
cartilage-inducing proteins developed under the research program,
including OP-1, for use in the field of orthopaedic reconstruction
and dental therapeutics. The Company has agreed not to undertake any
bone morphogenic protein (BMP)-related research, development or
commercialization of any products in the fields of orthopaedic
reconstruction and dental therapeutics, on its own behalf or for
third parties, for the term of certain patents to the extent that
the activities utilize technology, patents or certain personnel
acquired from Creative in the Merger. The Company has the exclusive
and irrevocable right to develop, market and sell products
incorporating morphogenic proteins developed under the research
program, including OP-1, for all uses and applications other than
orthopaedic and dental reconstruction, such as neurological
diseases, osteoporosis, renal failure and others. Subject to certain
exceptions in connection with an acquisition or merger of Stryker,
Stryker has agreed not to undertake any research, development or
commercialization of any products in our field (applications other
than orthopaedic reconstruction and dental therapies), on its own
behalf or for third parties, for the term of those patents. Each
company has the right to grant licenses to third parties in their
respective fields, and each is obligated to pay royalties to the
other on its sales of such products and to share royalties received
from licensees.

The Company maintains an exclusive license under certain patents and
claims that were assigned to Stryker in November 1998, as part of
the sale of certain of Creative's manufacturing rights and assets to
Stryker. In addition, Stryker was granted an exclusive license under
patents in Creative's morphogen portfolio for use in the fields of
orthopaedic reconstruction and dental therapeutics.

(b) ELAN INTERNATIONAL SERVICES

On July 18, 2001, the Company and Elan International Services, Ltd.
(EIS) formed Curis Newco, Ltd. (Curis Newco), an entity that is
committed to the research and development of molecules that
stimulate the hedgehog (Hh) signaling pathway. This pathway had
previously been shown to play a role in the development of the
central and peripheral nervous systems. At the time Curis Newco was
formed, EIS purchased 546,448 shares of the Company's common stock
for $4,000,000, or $7.32 per share, and received a warrant to
purchase up to 50,000 shares of the Company's common stock at $10.46
per share. The warrant is exercisable for five years. Also, EIS was
issued 1,000 shares of the Company's newly created Series A
convertible exchangeable preferred stock ("Series A Preferred
Stock") valued at $12,015,000 (See Note 12(a)). The Series A
Preferred Stock is, at EIS's option, convertible into the Company's
common stock at $14.12 per share or exchangeable for non-voting
preference shares of Curis Newco ("Newco Preference Shares"),
originally issued to the Company and representing 30.1% of the
aggregate outstanding shares of Curis Newco ("Aggregate Newco
Shares"). The Company used the $12,015,000 in value from

F-25
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

its issuance of the Series A Preferred Stock sale to acquire 80.1% of
the Aggregate Newco Shares. The issuance of Series A Preferred Stock
and the acquisition of the Aggregate Newco Shares were simultaneously
completed in the form of a non-cash cross-receipt. This acquisition
consisted of 100% of the voting common shares of Curis Newco ("Newco
Common Shares") and 60.2% of the Newco Preference Shares, which
represent 50% and 30.1%, respectively, of the Aggregate Newco Shares.
In addition, EIS contributed $2,985,000 to Curis Newco to acquire
39.8% of the Newco Preference Shares, which represent 19.9% of the
Aggregate Newco Shares. Curis Newco transferred the aggregate value of
$15,000,000 in a non-cash cross-receipt transaction to Neuralab
Limited, an affiliate of EIS, for a non-exclusive license giving Curis
Newco rights to use an important animal model, a mouse strain that
develops many of the features of human neurodegenerative diseases.
Upon Curis Newco's completing this transaction, the cost of this
license was expensed as a research and development cost by Curis Newco
as the technology acquired had not yet reached technological
feasibility and there was no future alternative use for the
technology. The Company's share of this expense was approximately
$12,015,000 and is included in Equity in Loss from Joint Venture in
the accompanying consolidated statement of operations for the year
ended December 31, 2001. In addition, the Company contributed to Curis
Newco an exclusive license with respect to certain technology related
to human neurodegenerative diseases.

Curis Newco was formed by issuing Newco Common Shares and Newco
Preference Shares valued at $15,000,000 to the Company and EIS. The
Company owns 100% of the outstanding Newco Common Shares, which
represents 100% of the outstanding voting Curis Newco shares. The
Newco Preference shares are non-voting and are convertible, at the
option of the holder thereof, into voting Newco Common Shares at any
time after July 18, 2003. While EIS currently does not own any Newco
Common Shares and is unable to convert any of its Newco Preference
Shares into Newco Common Shares until July 18, 2003, it has retained
significant minority investor rights that the Company considers to be
"participating rights" as defined in EITF Issue 96-16 Investors'
Accounting for an Investee When the Investor Has a Majority of the
Voting Interest but the Minority Shareholder Has Certain Approval or
Veto Rights. EIS's participating rights prevent the Company from
exercising sole control over Curis Newco with respect to certain
enumerated actions related to the technology licensed from Neuralab
Limited. Accordingly, the Company has not consolidated the financial
statements of Curis Newco but instead accounted for its investment in
Curis Newco under the equity method.

Subject to the continued agreement by the parties to the business plan
of Curis Newco, the Company may choose to provide additional funding
to Curis Newco as needed in relation to its 80.1% ownership interest
in Curis Newco. On July 18, 2001, the Company entered into the Note
Agreement for $8,010,000 with EPIL to help finance the Company's
development funding of Curis Newco. The borrowings under the Note
Agreement are restricted to this funding purpose (see Note 6).

The Company performs research for Curis Newco and incurred research
expenses of approximately $1,774,000 on behalf of Curis Newco during
the period of inception (July 18, 2001) through December 31, 2001.
In addition, Neuralab program management fees and other direct
expenses of Curis Newco totaled approximately $21,000. The Company's
80.1% share of Curis Newco ongoing operating expenses for the year
ended December 31, 2001 was approximately $1,438,000 and is included
in Equity in Loss from Joint Venture in the Company's consolidated
statement of operations. As of

F-26
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

December 31, 2001, the Company has a receivable from Curis Newco of
approximately $958,000. This receivable represents research and
development expenses from October 1, 2001 through December 31, 2001
paid for by Curis for services performed on behalf of Curis Newco.
As of December 31, 2001, the Company has a payable recorded to Curis
Newco of approximately $772,000. This payable represents the
Company's 80.1% share in Curis Newco's expenses for the period of
October 1, 2001 through December 31, 2001.

(c) MICROMET AG

On June 29, 2001, the Company entered into a purchase and sale
agreement with Micromet, AG ("Micromet"), a German corporation,
pursuant to which the Company assigned its single-chain-polypeptide
technology to Micromet in exchange for $8,000,000 in cash, 3,003
shares of Micromet common stock valued at approximately $686,000 and
a convertible promissory note ("Convertible Note") of EUR 4,068,348
(approximately $3,604,000 at December 31, 2001). The Convertible
Note bears interest at 7% and is due the earlier of (i) the closing
date of an initial public offering of Micromet's shares or (ii) June
30, 2005. The Company has recorded a long-term receivable of
approximately $128,000 relating to accrued interest on the
Convertible Note. Upon reaching maturity, the Company has the option
to receive either cash or shares of Micromet common stock.

In addition, effective December 31, 2001, the Company entered into a
target research and license agreement and a product development
agreement with Micromet. These agreements will provide the Company
with royalties on Micromet's product revenues, if any, arising out
of the assigned technology, joint ownership of future product
discoveries, if any, arising out of the collaboration, and access by
Curis to Micromet's proprietary single cell analysis of gene
expression technology. In addition, the product development
agreement will require the Company to jointly fund research for
potential targets through the proof of principle stage. The Company
estimates that its portion of funding costs for each of the
potential targets through proof of principle is approximately
$1,000,000. The Company will also have the right, but not the
obligation, to jointly or solely fund the development of targets
from the proof of principle stage through the completion of Phase I
Clinical Trials. Lastly, the Company will be obligated to pay
milestones to Micromet upon the attainment of certain development
goals.

The Convertible Note and estimated value of the Micromet common
stock have been recorded as a component of other assets in the
accompanying consolidated balance sheet due to the long-term nature
of the underlying instruments. The Company will recognize as revenue
the value of all consideration received from Micromet under the
purchase and sale agreement over the Company's estimated performance
period under the product development agreement. No revenue has been
recognized under this arrangement as of December 31, 2001.
Accordingly, the Company has recorded short-term and long-term
deferred revenue of approximately $82,000 and $12,064,000,
respectively, in the accompanying consolidated balance sheet at
December 31, 2001, based on when the Company believes revenue will
be recognized.

(d) AEGERA THERAPEUTICS

The Company entered into a license and collaboration agreement,
effective January 5, 2001, with Aegera Therapeutics, Inc. ("Aegera")
granting the Company an exclusive

F-27
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

worldwide license of Aegera's skin-derived, adult stem cell
technologies. The agreement also stipulates a three-year research
collaboration agreement in which the Company will fund a total of
eighteen full-time equivalent researchers dedicated to the
agreement, six of which shall be Aegera researchers. The committed
costs associated with the Aegera researchers are $600,000 per year.
In consideration for the technology license, the Company paid a
$100,000 up-front license fee, paid $250,000 for equity securities
in privately-held Aegera, and issued approximately $100,000 of Curis
common stock to Aegera. In addition, under the terms of the
agreement, the Company is required to make one additional license
payment of $100,000 in 2002.

The Company is required to make various milestone and royalty
related payments to Aegera upon Aegera's achievement of scientific
milestones and the recognition of product sales revenue, if any,
respectively. Milestone payments range from $250,000 to $1,500,000
and are payable upon the achievement of certain research,
development and regulatory goals. The aggregate number of potential
milestone payments is not determinable at the onset of the
agreement. No milestone payments have been made as of December 31,
2001.

(e) BECTON DICKINSON

In January 1999, Ontogeny and Becton Dickinson ("Becton") entered
into a two-year research collaboration focusing on the application
of cellular therapy and human pancreatic beta islets in the
treatment of diabetes. Under the terms of the agreement, Becton
provided one advanced researcher to work full time at one of the
Company's facilities throughout the period of the research
collaboration. All developments created by this researcher are the
property of Curis.

(f) BIOGEN

In December 1996, Creative entered into a Research Collaboration and
License Agreement with Biogen to collaborate on the development of
novel therapeutics based on OP-1 for the treatment of renal
disorders. The initial focus of the collaboration was on advancing
the development of Creative's morphogenic protein, OP-1, for the
treatment of acute and chronic renal failure. Under the agreement,
Creative granted to Biogen exclusive worldwide rights to
manufacture, market and sell OP-1 and OP-1 products developed
through the collaboration for the treatment of renal disease. The
agreement provided for $10,500,000 in research funding over a
three-year period ending December 31, 1999, of which $7,500,000 had
been recognized through December 31, 1998. In December 1998, Biogen
and Creative signed an Amendment Agreement and Biogen paid
$3,000,000 in research support for the year ending December 31,
1999. The $3,000,000 has been recognized as collaborative research
and development revenue through December 31, 1999. Under the Biogen
Amendment, Creative assumed primary responsibility for the
development of OP-1 for the treatment of renal disorders, and Biogen
retained an option through 1999 to resume responsibility for
development of OP-1 as a therapy for chronic renal failure. Biogen
did not exercise its option by December 31, 1999, and Curis has
assumed all rights to OP-1 renal therapies.

F-28
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(10) NOTES RECEIVABLE--OFFICERS

On August 3, 2001, the Company entered into a loan agreement with an
executive officer of the Company, totaling $500,000. The loan is full
recourse and bears interest at an annual rate of 8.0%. All principal and
interest is due in full on December 31, 2002, as amended by the Company
and the executive officer. The executive officer's obligations under the
loan are secured by a pledge of all of the executive officers shares of
the Company's common stock. In addition, during the term of the loan
agreement, the executive officer has agreed not to transfer any rights he
has to acquire additional shares of the Company's common stock. As of
December 31, 2001, the Company estimated that the principal and interest
on this loan would be forgiven by December 31, 2002 and, as such, is
recording compensation expense to amortize the total of this loan over a
period of seventeen months. This forgiveness is assumed to be contingent
on the executive officer's continued employment with the Company. The
amortized principal as of December 31, 2001 of $146,000 and accrued taxes
related to this commitment of approximately $72,000 are included in
accrued expenses. Accrued taxes are offset by a receivable in the
accompanying consolidated balance sheets since taxes are not forgiven on
this note (see Note 19).

On February 8, 2000, Creative loaned to two executive officers an
aggregate of approximately $1,131,000, which was equal to the aggregate
exercise price of incentive stock options exercised by them on the same
date. The officers immediately used these funds to pay Creative the
exercise price of such incentive stock options. These full recourse loans
each bear interest at an annual rate of 7.0%. All principal and interest
is due and payable on the earlier of May 8, 2002 or 30 days following the
sale of the stock purchased with these funds.

In 1996, Ontogeny loaned an executive officer $500,000, of which $300,000
was being forgiven over a five-year period that commenced in 1996,
contingent on the executive officer's continued employment with the
Company. The remaining $200,000 matures in 2003 and is being amortized
over a seven-year period that commenced in 1996, contingent on the
executive officer's continued employment with the Company. Upon
forgiveness, the Company has committed to pay for any resulting income
taxes to the executive officer. The Company is recording compensation
expense for the total of these loans over a period of five to seven years
and to accrue the related taxes. The amortized principal related to the
$200,000 as of December 31, 2001 is $157,000 and accrued taxes related to
this commitment of approximately $196,000 are included in accrued
expenses (see Note 19).

(11) SALE OF MANUFACTURING OPERATIONS AND REORGANIZATION CHARGES

In November 1998, Creative sold certain of its OP-1 manufacturing rights
and facilities to Stryker. As a result of this transaction, Creative
recorded a charge to operations of $1,362,000 in the year ended December
31, 1998. The charge included $885,000 primarily related to employee
termination benefits and $548,000 related to estimated health insurance
claims on the terminated employees, which $903,000 remained to be paid as
of December 31, 1998. During the year ended December 31, 1999, Creative
determined that health insurance claims were less than originally
estimated. This resulted in a reduction in the loss on sale of
manufacturing operations and the related accrual of approximately
$255,000.

Effective October 19, 1999, Creative was reorganized and the Creative
Board approved a plan in order to focus its operations and financial
resources on the development of its morphogenic protein-based clinical
candidates for the treatment of stroke and renal disease. The
reorganization charge included $511,000 related primarily to termination
benefits in the reduction of employees

F-29
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

from 70 to 43. Salaries and termination benefits, either in the form of
one-time or periodic payments, were made when the employee ceased
employment. These employees were in management, research and development
and administrative support. As of December 31, 1999, there was
approximately $96,000 of accrued costs, principally representing future
cash outlays for employee-termination costs. As of December 31, 2000, all
reorganization accruals were paid or reversed. A detailed rollforward of
these accruals are as follows:

1999 1998 Sale of
Reorganization Manufacturing
Charges Operations

Accrued at December 31, 1998 903,000
Expensed $ 511,000 --
Paid (415,000) (648,000)
Reversed -- (255,000)
------------- -------------

Accrued at December 31, 1999 96,000 $ --
=============
Paid (58,000)
Reversed (38,000)
-------------

Accrued at December 31, 2000 $ --
=============

The following table summarizes the effect to the statement of operations
for reorganization charges and sale of manufacturing operations for the
year ended December 31, 1999:

Salaries and termination benefits $ 511,000
accrued during 1999
Salaries and termination benefits (255,000)
accrued during 1998 and settled for
amounts less than anticipated
----------

Total $ 256,000
==========

(12) PREFERRED STOCK

(a) SERIES A PREFERRED STOCK

On July 18, 2001, the Company issued 1,000 shares of a non-voting
Series A Preferred Stock valued at $12,015,000 to EIS in connection
with the formation of Curis Newco (See Note 9(b)). The fair value of
the Series A preferred shares was determined based on an arm's
length negotiation between the Company and EIS. The Series A
preferred stock is mandatorily redeemable as of July 18, 2007,
however, it is redeemable at the Company's option, either in (i)
cash at an amount equal to its liquidation preference plus all
accrued and unpaid dividends or (ii) the issuance of shares of Curis
common stock having a then fair market value equal to the
liquidation preference plus all accrued and unpaid dividends. The
Series A Preferred Stock is, at EIS's option and at any time,
convertible into the Company's common stock at $14.12 per share. The
Series A Preferred Stock is also exchangeable for non-voting Newco
Preference Shares at EIS's option at any time after July 18, 2003
(Exchange Right). The Company is required to account for this
Exchange Right at fair value. The fair value of the Exchange Right
would be recognized only in the event that the value of the Curis
Newco joint venture

F-30
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

shares exceeded that of the Company's common shares. If the fair
value of the Curis Newco joint venture shares exceeds that of the
Company's common stock issuable upon conversion, the Company would
be required to record a liability for such excess and record a
charge to operations. Subsequent changes in this amount would be
reported currently in operations by the Company. As of December 31,
2001, the Company has determined that there was no incremental value
of the Curis Newco joint venture shares as compared to its common
shares, accordingly no amounts have been recognized for the Exchange
Right.

The Series A Preferred Stock is entitled to dividends as and when
declared by the board of directors and to participate equally on a
pro rata basis in any dividend declared for the holders of common
stock. Also, the Series A Preferred Stock is entitled to a mandatory
dividend preference of 6%. Accordingly, the Company recorded a
charge to accumulated deficit for the accretion of the 6% Series A
Preferred Stock dividend of approximately $326,000. Such amounts are
included in the net loss applicable to common stockholders in the
year ended December 31, 2001. The holders of Series A Preferred
Stock are entitled to receive $12,015 per share, respectively, plus
all declared but unpaid dividends, in the event of liquidation,
dissolution or winding-up of Curis Newco and before any distribution
to common stockholders and any prior series of preferred stock.

(b) SERIES 1998/A REDEEMABLE PREFERRED STOCK

On May 27, 1998 (the Issue Date), Creative completed a private
placement with three institutional investors (the Investors) for the
sale of 25,000 shares of Series 1998/A Preferred Stock, $0.01 par
value per share (the Series 1998/A Preferred Stock), with a stated
value of $1,000 per share resulting in gross proceeds of $25,000,000.

Through May 7, 1999, the holders converted a total of 4,514 shares
of Series 1998/A Preferred Stock into 613,129 shares of common
stock. On May 7, 1999, Creative repurchased 20,486 shares, which
represented all of the then outstanding Series 1998/A Preferred
Stock following final conversions, for approximately $22,470,000 in
cash. Accretion and Repurchase Costs on Series 1998/A Preferred
Stock was $21,396,000 for the year ended December 31, 1999, and
included the following: $385,000 calculated at the rate of 5% per
annum of the stated value of the outstanding Series 1998/A Preferred
Stock; $144,000 of accretion of issuance costs related to the sales
of Series 1998/A Preferred Stock; and, as a result of the repurchase
of the Series 1998/A Preferred Stock on May 7, 1999, a one-time
charge of approximately $1,867,000 recorded in the second quarter of
1999 which represents accretion of the Series 1998/A Preferred Stock
up to its repurchase amount and accretion of all remaining issuance
costs. As a result of this transaction, the Series 1998/A Preferred
Stock has been retired and there will be no subsequent conversions
into common stock.

(13) WARRANTS

In connection with a private placement offering of common stock in 1994
and 1995, Creative sold 339,000 warrants, each to purchase one share of
common stock. Each warrant is exercisable for a period of five years from
the date of issuance at an exercise price of $7.95. During the years
ended December 31, 2000 and 1999, 74,194 and 119,198 Creative warrants
were exercised, respectively. Proceeds to Creative were approximately
$308,000 and $948,000, respectively. At December 31, 2000, all
unexercised warrants had expired.

F-31
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

In connection with the Merger, the Company assumed 71,089 warrants from
Ontogeny and Reprogenesis. The exercise price of these warrants ranges
from $3.40 to $19.51 per share. During the fourth quarter of the year
ended December 31, 2000, 55,685 warrants were exercised on a net issuance
basis resulting in the issuance of 38,925 shares. At December 31, 2001,
warrants to purchase 15,404 shares of common stock with prices ranging
from $9.76 to $19.51 per share are outstanding.

On July 18, 2001 and in connection with its common stock issuance to EIS,
the Company issued to EIS a warrant to purchase up to 50,000 shares of
the Company's common stock at $10.46 per share. The warrant is
exercisable for five years. As of December 31, 2001, the warrant has not
been exercised.

(14) STOCK PLANS

(a) OPTION PLANS

In March 2000, the Board of Directors adopted and, in June 2000, the
stockholders approved the 2000 Stock Incentive Plan (the "2000
Plan"), which permits granting of incentive and non-qualified stock
options as well as the issuance of restricted shares. The number of
shares of common stock subject to issuance under the 2000 Plan is
11,000,000. At December 31, 2001, 2,372,614 shares are available for
grant under the 2000 Plan.

The 2000 Plan permits the granting of incentive and nonqualified
stock options to consultants, employees or officers of the Company
and its subsidiaries at prices determined by the Board of Directors.
Awards of stock may be made to consultants, employees or officers of
the Company and its subsidiaries, and direct purchases of stock may
be made by such individuals also at prices determined by the Board
of Directors. Options become exercisable as determined by the Board
of Directors and expire up to 10 years from the date of grant.

In March 2000, the 2000 Director Stock Option Plan (the "2000
Director Plan") was adopted by the Board of Directors and approved
by the stockholders in June 2000. The 2000 Director Plan provides
for the granting of options to non-employee directors. The number of
shares of common stock subject to issuance under the 2000 Director
Plan is 500,000. As of December 31, 2001, 440,000 shares are
available for grant under the 2000 Director Plan.

F-32
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Activity under all the stock option plans is summarized as follows:

Weighted
Average
Number of Exercise Price
Shares per Share

Outstanding, December 31, 1998 (1,051,768
exercisable at a weighted average price of
$15.10 per share) 1,729,442 $ 16.47
Granted 348,435 10.23
Exercised (130,141) 6.00
Canceled (237,504) 22.60
-------------- ------------

Outstanding, December 31, 1999 (1,060,589
exercisable at a weighted average price of
$15.47 per share) 1,710,232 15.13
Granted 4,447,620 13.77
Exchange of Ontogeny and Reprogenesis
options for Curis options 1,772,054 4.57
Exercised (601,287) 7.75
Canceled (444,935) 7.27
-------------- ------------

Outstanding, December 31, 2000 (2,384,703
exercisable at weighted average price of
$10.16 per share) 6,883,684 12.00
Granted 3,512,399 3.43
Exercised (274,640) 2.67
Canceled (1,914,044) 13.19
-------------- ------------

Outstanding, December 31, 2001 (2,484,998
exercisable at weighted average price of
$9.40 per share) 8,207,399 $ 8.37
============== ============

F-33
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

The table below summarizes options outstanding and exercisable at
December 31, 2001:

<TABLE>
<CAPTION>
-------------Options Outstanding------------- Options Exercisable
Weighted
Average Weighted Weighted
Remaining Average Average
Number of Contractual Exercise Price Number of Exercise Price
Exercise Price Range Shares Life (in years) per Share Shares per Share

<S> <C> <C> <C> <C> <C>
$ 0.39 - $ 0.39 1,408 3.92 $ 0.39 1,408 $ 0.39
0.53 - 1.56 208,075 4.48 1.00 208,075 1.00
1.95 - 3.90 3,545,646 8.90 3.34 686,725 3.65
4.38 - 6.91 700,264 7.80 5.25 310,639 5.36
7.30 - 10.65 781,450 8.72 10.52 256,450 10.26
12.87 - 19.17 2,856,527 8.59 14.52 916,469 14.52
20.00 - 29.26 50,731 5.89 24.92 41,933 25.53
31.15 - 31.67 63,298 4.60 31.16 63,299 31.16
------------- --------------- --------------- ----------- ---------------

8,207,399 8.52 $ 8.37 2,484,998 $ 9.40
============= =============== =============== =========== ===============
</TABLE>

(b) EMPLOYEE STOCK PURCHASE PLAN

In March 2000, the Board of Directors adopted and, in June 2000, the
stockholders approved the 2000 Employee Stock Purchase Plan (the
"ESPP Plan"). The Company has reserved 1,000,000 of its shares for
issuance under the ESPP Plan. Eligible employees may purchase shares
at 85% of the lower closing market price at the beginning or ending
date of the ESPP Plan period, as defined. During the years ended
December 31, 2001 and 2000, 53,888 and 16,732 shares were issued
under the ESPP Plan.

The prior Employee Stock Purchase Plan permitted Creative employees
to purchase common stock of Creative up to an aggregate of 225,000
shares. During the year ended December 31, 1999, 19,536 shares were
issued under this plan at the fair market value prices of $9.47 and
$9.83 per share.

(c) STOCK-BASED COMPENSATION

The Company accounts for its stock-based awards using the intrinsic
value method in accordance with APB Opinion No. 25 and its related
interpretations. Accordingly, no compensation expense has been
recognized in the consolidated financial statements at the date of
grant for employee stock option arrangements for which the exercise
price is equal to the fair market value of the underlying shares at
that date. In December 2001, the Company recorded a compensation
charge of approximately $113,000 and $25,000 related to the issuance
of fully vested options at below fair market value and to a
modification of an option vesting period, respectively. The Company
recorded a charge of $399,000 and $64,000 related to a change in the
exercise terms of stock option agreements in connection with the
Merger and the sale of manufacturing operations for the years ended
December 31, 2000 and 1999, respectively.

F-34
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

On February 8, 2000, the Board of Directors approved the immediate
acceleration of vesting of unvested stock options held by Creative's
executive officers and outside directors and the extension of the
exercise period for one year. Vesting for approximately 397,200
options was accelerated and the exercise period for approximately
708,300 vested options was extended, resulting in a non-cash
compensation charge of $3,139,000, which was recorded in the year
ended December 31, 2000.

In connection with stock options granted to employees and
non-employees during the year ended December 31, 2000, the Company
recorded deferred compensation, net of terminations, of
approximately $17,330,000, which represents the aggregate difference
between the option exercise price and the fair market value of the
common stock on the grant date. The deferred compensation will be
recognized as an expense on a straight-line basis over the vesting
period, generally four years, of the underlying stock options for
options granted to employees and as earned for non-employees in
accordance with EITF 96-18. The options granted to non-employees
were valued based upon the fair value of the options granted. The
Company recorded compensation expense of approximately $3,934,000
and $30,000 related to these option grants to employees and
non-employees, respectively, for the year ended December 31, 2001.
The Company recorded compensation expense of approximately
$1,864,000 and $39,000 related to these option grants to employees
and non-employees, respectively, for the year ended December 31,
2000. The Company did not grant stock options to non-employees in
1999. During the year ended December 31, 2001, the Company reversed
approximately $1,840,000 of unamortized compensation for options
forfeited by terminated employees. The deferred compensation balance
at December 31, 2001 relating to these stock option grants was
$9,576,000.

On February 14, 2000, Reprogenesis issued 300,000 shares of
restricted stock to an executive officer. These shares of restricted
stock were fully vested upon the effective date of the Merger, at
which time the Company recorded approximately $1,623,000 of
compensation expense representing the fair market value of the
shares on that date.

As a result of the Merger, the Company recorded approximately
$19,146,000 of deferred compensation as a component of stockholders'
equity related to the value of unvested stock options held by
employees and consultants primarily of Ontogeny, which were
exchanged for options to acquire Curis' common stock. The Company is
amortizing this amount over the one-year vesting period of the stock
options ending on August 1, 2001. During the years ended December
31, 2001 and 2000, compensation expense related to these options
totaled $6,257,000 and $9,564,000, respectively. During the years
ended December 31, 2001 and 2000, the Company also reversed
approximately $421,000 and $2,116,000, respectively of unamortized
deferred compensation for options forfeited by terminated employees.
The deferred compensation balance at December 31, 2001 relating to
the above unvested stock options was $41,000.

F-35
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Under SFAS No. 123, the fair value of stock-based awards to
employees is calculated through the use of option pricing models,
even though such models were developed to estimate the fair value of
freely tradeable, fully transferable options without vesting
restrictions, which significantly differ from the Company's stock
option awards. These models also require subjective assumptions,
including future stock price volatility and expected time to
exercise, which greatly affect the calculated values. The Company's
calculations were made using the Black-Scholes option-pricing model
with the following assumptions and weighted average values:

Year Ended December 31,
2001 2000 1999

Risk-free interest rate 5.0% 6.0% 6.4%
Expected dividend yield -- -- --
6 months post-total
Expected lives 7.0 7.4 vesting
Expected volatility 111% 113% 94%
Weighted average grant date fair value $3.20 $15.84 $2.26

Forfeitures for grants to executives are recognized as they occur.
If the computed fair values of the 2001, 2000 and 1999 awards had
been amortized to expense over the vesting period of the awards
consistent with SFAS No. 123, pro forma net loss and net loss per
common share would have been as follows:

Year Ended December 31,
2001 2000 1999

Net loss-
As reported $ (81,863,650) $ (350,350,624) $ (14,505,349)
Pro forma (94,636,940) (355,434,299) (14,804,644)
Net loss per common share
(basic and diluted) -
As reported $ (2.57) $ (19.80) $ (1.36)
Pro forma (2.97) (20.09) (1.39)

(15) INCOME TAXES

No income tax provision or benefit has been provided for federal income
tax purposes, as the Company has incurred losses since inception. As of
December 31, 2001, the Company had available federal and state net
operating loss carryforwards of approximately $227,226,000 for income tax
purposes. In addition, the Company had approximately $4,656,000 of unused
investment and research and development tax credits. These net operating
loss and tax credit carryforwards will expire at various dates between
2002 and 2021.

The components of deferred income taxes at December 31, 2001 and 2000,
consist primarily of the following:

F-36
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

2001 2000
Deferred tax assets-
Net operating loss carryforwards $ 91,504,000 $ 57,868,000
Investment credit and research and development 4,656,000 3,525,000
tax credit carryforwards
Amortizable research and development 9,606,000 17,157,000
expenditures
Other 254,000 6,013,000
------------- ------------

Total 106,020,000 84,563,000

Valuation allowance (106,020,000) (84,563,000)
------------- ------------

Net deferred tax assets $ -- $ --
============= ============

The Company has not yet achieved profitable operations. In addition, the
future availability of the Company's tax benefits may be significantly
limited under Section 382 of the Internal Revenue Code. Section 382
limits the use of net operating loss carryforwards, credit carryforwards
and certain other tax attributes as a result of changes in a company's
ownership. The Merger has caused a change in control under Section 382 of
the Internal Revenue Code and, accordingly, the Company's ability to
utilize the net operating loss carryforwards will be limited. The amount
of the limitation has not yet been determined. Accordingly, management
believes that the tax benefits as of December 31, 2001 and 2000, do not
satisfy the realization criteria set forth in SFAS No. 109 and has
recorded a valuation allowance for the entire net asset. The future
realization, if any amount, of net operating loss carryback attributable
to disqualifying dispositions will not be recognized as a tax benefit in
the statement of operations but rather as a component of stockholders'
equity.

In addition, as a result of the Merger, the historical net operating loss
carryforwards of Ontogeny and Reprogenesis are available to Curis but are
limited due to the provisions of Section 382 of the Internal Revenue
Code. The amount and availability of the net operating loss carryforwards
of Ontogeny and Reprogenesis have not been determined.

(16) RETIREMENT SAVINGS PLAN

The Company has a 401(k) retirement savings plan covering substantially
all of the Company's employees. Matching Company contributions are at the
discretion of the Board of Directors. The Board of Directors authorized
matching contributions up to 3% of participants' salaries amounting to
approximately $213,000, $141,000 and $160,000 for the years ended
December 31, 2001, 2000 and 1999, respectively. For the year ended
December 31, 2001, the Company partially offset its matching contribution
by transferring $123,000 from the 401(k) Plan's forfeiture account.

F-37
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(17) ACCRUED LIABILITIES

Accrued liabilities consist of the following:

December 31,
2001 2000

Collaboration and clinical costs $ 2,245,000 $ 2,025,000
Professional fees 1,187,000 858,000
Accrued compensation 380,000 463,000
Other 2,131,000 2,208,000
------------- -------------

Total $ 5,943,000 $ 5,554,000
============= =============

(18) SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

The following are selected quarterly financial data for the years ended
December 31, 2001 and 2000:

<TABLE>
<CAPTION>

Quarter Ended
--------------------------------------------------------------
March 31, June 30, September 30, December 31,
2001 2001 2001 2001
<S> <C> <C> <C> <C>
Revenues $ 249,165 $ 202,638 $ 287,915 $ 346,785
Loss from operations (20,097,033) (19,854,146) (16,624,108) (15,599,644)
Net loss applicable to
common stockholders (17,807,229) (19,277,008) (28,525,447) (16,434,192)
Basic and diluted net
loss per share $ (0.57) $ (0.61) $ (0.89) $ (0.51)
Shares used in
computing basic and
diluted net loss per
share 31,434,120 31,560,390 32,136,744 32,291,959
</TABLE>

<TABLE>
<CAPTION>
Quarter Ended
--------------------------------------------------------------
March 31, June 30, September 30, December 31,
2001 2001 2001 2001
<S> <C> <C> <C> <C>
Revenues $ 670,387 $ 7,471 $ 65,955 $ 279,756
Loss from operations (6,096,809) (2,757,646) (323,270,194) (19,650,558)
Net loss applicable to
Common stockholders (5,841,548) (2,514,016) (322,870,195) (19,124,865)
Basic and diluted net
loss per share $ (0.52) $ (0.22) $ (15.19) $ (0.71)
Shares used in
Computing basic and
diluted net loss per
share 11,267,071 11,471,672 21,250,137 26,786,175
</TABLE>

F-38
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(19) SUBSEQUENT EVENT

The Company announced on February 14, 2002 that it is realigning its
research and development programs and narrowing the focus of its
resources on its signaling pathway and stem cell technologies (the
Realignment). As part of the Realignment, the Company suspended its
clinical product development efforts on Vascugel for coronary artery
disease. The Company also terminated clinical development efforts on
Chondrogel, its program for the treatment of vesicoureteral reflux,
and its basal cell carcinoma oncology candidate. In connection with the
above, the Company reduced its staff by 35 employees, including three
executive officers. The Company estimates that it will incur cash
expenditures in 2002 of approximately $3,500,000 related to the
Realignment that include severance payments of approximately $1,300,000,
and costs associated with the termination and suspension of its
clinical programs and related facility decommissioning costs of
approximately $2,200,000.

Certain research programs affected by the realignment were acquired by the
Company from Reprogenesis and Ontogeny through the merger. The net book
value of intangibles as a result of the acquisitions of Reprogenesis and
Ontogeny was approximately $26,215,000 and $46,857,000, respectively, as of
December 31, 2001. In conjunction with SFAS No.142, the Company is in the
process of completing the first step of the transitional goodwill
impairment test. If the carrying amount of the net assets of the reporting
unit (including goodwill) in which these programs have been derived from
exceeds the fair value of that reporting unit, the impairment loss
recognized as a result of a transitional goodwill impairment test, will be
recognized by the Company as an effect of a change in accounting principle
effective as of the first quarter in 2002. The Company has not determined
the potential impairment loss from adopting SFAS No. 142. The Company does
believe that the Realignment may result in a goodwill and assembled
workforce impairment beyond any impairment recognized due to the adoption
of SFAS 142. This impairment charge would be recognized as a charge to
operations in the first quarter of fiscal 2002. The Company has not yet
assessed the amount, if any, of this impairment charge.

In addition to its assessment of impairment as a result of the
Realignment the Company performed an assessment of impairment on its
goodwill and assembled workforce intangible assets as of December 31,
2001. The Company determined that the recoverability of these intangible
assets was not impaired based on the future undiscounted net cash flows
for the products underlying these intangible assets as of December 31,
2001. The underlying products included in this assessment were based on
the Company's focus as of December 31, 2001.

In connection with separation arrangements with certain current and
former executive officers (Executive Officers) of the Company, the
Company will accelerate vesting of at least 158,000 shares, and as many
as 433,000 shares, under options granted on April 3, 2001 at $3.13 per
share. Additionally, the exercise period for all remaining options shall
be extended for up to twelve months following the respective Executive
Officer's seperation date. The Company will record stock-based compensation
expense in the first and second quarter of 2002, as appropriate.

In addition, stock options granted to the Executive Officers on August
18, 2000 for the purchase of 1,200,000 shares at $14.50 per share will
terminate and the underlying shares will be returned to the 2000 Plan.

One of the Executive Officers will also receive accelerated forgiveness of
a $200,000 note originally scheduled to be forgiven in 2003 and a payment
in an amount equal to any income tax obligations that this individual may
incur

F-39
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

resulting to such forgiveness. The Company will also forgive principal and
interest on the $500,000 loan entered into on August 3, 2001. Upon
forgiveness, this individual is responsible for repayment of all taxes on
the $500,000 loan (See note 10).

F-40
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Stockholders and Board of Directors of
Curis Newco, Ltd.:

We have audited the accompanying balance sheet of Curis Newco, Ltd. (a
Bermuda corporation in the development stage) as of December 31, 2001, and the
related statements of operations, stockholders' deficit and cash flows for the
period from inception (July 16, 2001) to December 31, 2001. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

We conducted our audit in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audit provides a
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Curis Newco, Ltd. as of
December 31, 2001 and the results of its operations and its cash flows for the
period from inception (July 16, 2001) to December 31, 2001, in conformity with
accounting principles generally accepted in the United States.

/s/ Arthur Andersen LLP

Hamilton, Bermuda
January 25, 2002

F-41
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

CURIS NEWCO, LTD.
(A DEVELOPMENT STAGE COMPANY)
BALANCE SHEET

December 31,
ASSETS 2001
-------------

Current Assets:
Cash $ 9,785
-------------

Total assets $ 9,785
=============

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
Due to Curis (Note 5) 957,798
Due to Elan (Note 5) 6,118
-------------

Total current liabilities 963,916
-------------

Stockholders' Deficit:
Non-redeemable convertible preferred stock, $1.00 par
value-

Authorized, issued and outstanding - 6,000 shares as
of December 31, 2001

6,000
Common stock, $1.00 par value-

Authorized, issued and outstanding - 6,000 shares as
of December 31, 2001

6,000
Additional paid-in capital
Capital in excess of par value of stock 14,988,000
Additional capital 1,805,275
Due from stockholders (963,916)
Deficit accumulated during the development stage (16,795,490)
--------------

Total stockholders' equity (954,131)
--------------

$ 9,785
=============

The accompanying notes are an integral part of these financial statements.

F-42
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

CURIS NEWCO, LTD.
(A DEVELOPMENT STAGE COMPANY)

STATEMENT OF OPERATIONS

For the Period
from Inception
(July 16, 2001)
through December
31, 2001
------------------

Costs and Expenses:
Research and development 16,782,156
General and administrative 13,334
--------------

Net loss applicable to common stockholders $ (16,795,490)
===============

Basic and Diluted Net Loss per Common Share $ (2,799.25)
===============

Basic and Diluted Weighted Average Shares Outstanding 6,000
==============

The accompanying notes are an integral part of these financial statements.

F-43
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

CURIS NEWCO, LTD.
(A DEVELOPMENT STAGE COMPANY)

STATEMENTS OF STOCKHOLDERS' DEFICIT

<TABLE>
<CAPTION>
Non-redeemable Common Stock Deficit Total
convertible preferred stock Accumulated
During the
Number $1.00 Par Number $1.00 Par Additional Paid- Due from Development Stockholder's
of Shares Value of Shares Value in Capital Stockholders Stage Equity
--------- ----- --------- ----- ---------- ------------ ----- ------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Incorporation of the
company:
Issuance of non-
redeemable convertible
preferred stock
6,000 $ 6,000 -- $ -- $ 7,494,000 $ -- $ -- $ 7,500,000
Issuance of common stock
-- -- 6,000 $ 6,000 7,494,000 -- -- 7,500,000
Capital contribution -- -- -- -- 1,805,275 -- -- 1,805,275
Due from stockholders -- -- -- -- -- (963,916) -- (963,916)
Net loss -- -- -- -- -- -- (16,795,490) (16,795,490)
--------- --------- --------- --------- -------------- ------------ ------------ ------------
Balance, December 31,
2001 6,000 $ 6,000 6,000 $ 6,000 $ 16,793,275 $ (963,916) $(16,795,490) $ (954,131)
========= ========= ========= ========= ============== ============ ============= =============
</TABLE>

The accompanying notes are an integral part of these financial statements.

F-44
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

CURIS NEWCO, LTD.
(A DEVELOPMENT STAGE COMPANY)
STATEMENT OF CASH FLOWS

For the Period
from Inception
(July 16, 2001)
through December
31, 2001
--------

Cash Flows from Operating Activities:
Net loss $ (16,795,490)
Adjustments to reconcile net loss to net
cash used in operating
activities -
Write-off of acquired technology 15,000,000
Noncash increase in capital contributions 963,916
Changes in operating assets and liabilities --
Due from stockholders (963,916)
Due to Curis 957,798
Due to Elan 6,118
----------------

Net cash used in operating activities (831,574)
----------------

Cash Flows from Financing Activities:
Capital contributions received 841,359
----------------

Net cash provided by financing activities 841,359
----------------

Net change in cash 9,785
Cash, beginning of period -
----------------

Cash, end of period $ 9,785
================

Supplemental Disclosure of Noncash Financing
Activities:
Issuance of non-redeemable preferred stock
And common stock for technology license $ 15,000,000
================

The accompanying notes are an integral part of these financial statements.

F-45
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

CURIS NEWCO, LTD.
(A DEVELOPMENT STAGE COMPANY)

NOTES TO FINANCIAL STATEMENTS

(1) OPERATIONS

Curis Newco, Ltd. (Curis Newco) was incorporated on July 16, 2001 as a
Bermuda company. Curis Newco is owned by Curis, Inc. (Curis) and Elan
International Services Ltd. (EIS), holding 80.1% and 19.9% (non-voting
shares) interests, respectively. Curis Newco is committed to the research
and development of molecules that stimulate the hedgehog (Hh) signaling
pathway as defined in the Subscription, Joint Development and Operating
Agreement dated July 18, 2001 between EIS and Curis. This pathway has
been previously shown to play a role in the development of the central
and peripheral nervous systems.

On July 18, 2001, EIS was issued 1,000 shares of Curis' Series A
convertible exchangeable preferred stock (Series A Preferred Stock)
valued at $12,015,000. The Series A Preferred Stock is convertible, at
EIS's option, into newly issued fully paid, non-assessable shares of
Curis' common stock or into the preferred stock originally issued to
Curis representing 30.1% of the aggregate outstanding shares of Curis
Newco on a fully diluted basis. Such exchange would increase EIS's
ownership in Curis Newco to 50% on a fully diluted basis. Curis used the
value of the Series A Preferred Stock to acquire its 80.1% interest in
Curis Newco on a fully diluted basis. Curis Newco used this investment
along with the 19.9% investment from EIS to acquire a license from
Neuralab, Ltd., an affiliate of EIS, valued at $15.0 million, giving
Curis Newco rights to use specific Elan drug technologies. Immediately,
upon completing this transaction, the cost of the license was expensed as
a research and development cost as the technology acquired had not yet
reached technological feasibility and there was no future alternative use
for the technology.

While Curis owns 100% of the voting common stock, EIS has retained
significant minority investor rights that are considered "participating
rights" as defined in Emerging Issues Task Force (EITF) Issue 96-16,
Investors' Accounting for an Investee When the Investor Has a Majority of
the Voting Interest but the Minority Shareholder Has Certain Approval or
Veto Rights. EIS's participating rights overcome the presumption that
Curis exercises control over Curis Newco.

Within the period commencing on July 18, 2001 and ending on July 18, 2003,
Curis and EIS may provide Curis Newco up to an aggregate amount of
$10,000,000 (Development Funding). Such Development Funding is to be
provided by Curis and EIS on a pro rata basis based on their respective
ownership interests (see Note 4). In order to ensure Curis has funds
available for its share of the Development Funding, Curis entered into a
$8,010,000 convertible promissory note agreement (the Note Agreement) with
Elan Pharma International Ltd. (EPIL). The borrowings under the Note
Agreement are suject to Elan's consent and restricted for Curis' funding of
Curis Newco. As of December 31, 2001, borrowings of $673,929 were
outstanding under the Note Agreement. Based on the borrowing availability
under the Note Agreement to Curis, and subject to the continued agreement
of a business plan and funding requirements, Curis Newco believes it has
enough available capital to fund operations through January 1, 2003.

Curis Newco is in the development stage and is devoting substantially all
of its efforts toward product research and development. Curis Newco is
subject to a number of risks similar to those of other development stage
companies. Principal among these risks are the dependence on key
individuals, the need to develop commercially usable products,
competition from substitute

F-46
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

products and larger companies, and the need to obtain adequate financing
necessary from Curis and EIS to fund further product development.

(2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying financial statements reflect the application of certain
accounting policies described below and elsewhere in the notes to the
financial statements.

(a) FAIR VALUE OF FINANCIAL INSTRUMENTS

The carrying amounts of Curis Newco's financial instruments, which
include cash, amounts due from stockholders and the amounts due to
Curis and EIS approximate their fair value.

(b) CONCENTRATIONS OF LIMITED SUPPLIERS

Certain materials used in Curis Newco's development process are
procured from a single source. The failure of a supplier, including
a subcontractor, to deliver on schedule could delay or interrupt the
development process and thereby adversely affect Curis Newco's
operating results.

(c) USE OF ESTIMATES

The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at
the date of the financial statements and the reported amounts of
expenses during the reporting period. Actual results could differ
from those estimates.

(d) RESEARCH AND DEVELOPMENT EXPENSES

Curis Newco charges research and development expenses to operations
as incurred.

(e) NET LOSS PER SHARE

Basic and diluted net loss per common share is calculated by
dividing the net loss applicable to common stockholders by the
weighted average number of common shares outstanding during the
period. Diluted net loss per common share is the same as basic net
loss per common share, since the effects of potentially dilutive
securities are antidilutive for all periods presented. Antidilutive
securities, which consist of non-redeemable convertible preferred
stock, aggregated to 6,000 shares as of December 31, 2001.

(f) COMPREHENSIVE LOSS

F-47
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

Comprehensive loss is defined as the change in stockholders' deficit
during a period from transactions and other events and circumstances
from non-owner sources. Curis Newco's net loss is equal to its
comprehensive loss for the period presented.

(g) ORGANIZATION COSTS

All organization costs have been expensed as incurred.

(h) DISCLOSURES ABOUT SEGMENTS OF AN ENTERPRISE

Operating segments are identified as components of an enterprise
about which separate discrete financial information is available for
evaluation by the chief operating decision maker, or decision making
group, in making decisions regarding resource allocation and
assessing performance. To date, Curis Newco has viewed its
operations and manages its business as principally one operating
segment.

(i) RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In July 2001, the FASB issued SFAS No. 141, Business Combinations.
SFAS No. 141 requires all business combinations initiated after June
30, 2001 to be accounted for using the purchase method. The adoption
of SFAS No. 141 is not expected to have a material impact on Curis
Newco's financial statements.

In July 2001, the FASB also issued SFAS No. 142, Goodwill and Other
Intangible Assets. Under SFAS No. 142, goodwill is no longer subject
to amortization over its estimated useful life. Rather, goodwill is
subject to at least an annual assessment for impairment by applying
a fair-value-based test. Intangible assets will continue to be
amortized over their respective useful lives under SFAS No. 142. The
adoption of SFAS No. 142 is not expected to have a material impact
on Curis Newco's financial statements.

(3) INCOME TAXES

Under current Bermuda law, Curis Newco is not required to pay any taxes
in Bermuda on either income or capital gains. Curis Newco has received an
undertaking from the Minister of Finance in Bermuda that, in the event of
such taxes being imposed, Curis Newco will be exempted from taxation
until the year 2016.

(4) STOCKHOLDERS' DEFICIT

(a) AUTHORIZED STOCK

Curis Newco has authorized capital stock of 12,000 shares, of which
6,000 are $1.00 par value common stock and 6,000 are $1.00 par value
non-voting non-redeemable convertible preferred stock.

F-48
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(b) Common Stock

In July 2001, Curis Newco issued 6,000 shares of common stock at
$1,250 per share at a value of $7,500,000.

(c) Non-Redeemable Convertible Preferred Stock

In July 2001, Curis Newco issued 6,000 shares of non-redeemable
convertible preferred stock (Preferred Stock) at $1,250 per share at
a value of $7,500,000. The rights, preferences and privileges of the
Preferred Stock are as follows:

Voting Rights

Preferred stockholders do not have voting rights.

Dividends

Preferred stockholders are entitled to dividends as and when
declared by the board of directors. Preferred stockholders are
entitled to participate equally on a pro rata basis in any
dividend declared for the holders of common stock.

Liquidation Preference

In the event of liquidation, dissolution or winding-up of Curis
Newco and before any distribution to common stockholders and
any prior series of preferred stock, the holders of Preferred
Stock are entitled to receive $1,250 per share, respectively,
plus all declared but unpaid dividends.

Conversion

Each share of Preferred Stock is convertible, at the option of
the holder, into one share of common stock, subject to
adjustments for dilutive issuances of stock at any time after
July 18, 2003.

F-49
CURIS, INC. AND SUBSIDIARIES
Notes to Consolidated Financial Statements
December 31, 2001

(5) RELATED PARTY TRANSACTIONS

Curis Newco's research and development and general and administrative
costs were paid for directly by the Curis Newco stockholders. These
transactions are in the normal course of operations and amounts payable
to these stockholders are summarized as follows:

The following table summarizes Curis Newco's related party transactions:

December 31,
2000

Due to Curis $ 957,798
Due to Elan 6,118
------------

Total $ 963,916
===========

These balances are unsecured and interest free with no set terms of
repayment. They are classified as current liabilities as Curis Newco will
reimburse Curis and Elan upon its funding by its stockholders.

Due from stockholders represents the amounts required to be funded into
Curis Newco as contributed capital by its stockholders. As of December
31, 2001, Curis and ESI are obligated to contribute $772,097 and
$191,819, respectively.

F-50
EXHIBIT INDEX
-------------

The following exhibits are filed herewith or incorporated herein by reference:

Exhibit Description
------- -----------
No.
---

3.1 Restated Certificate of Incorporation of Curis, Inc. (Previously
filed with the SEC as Exhibit 3.3 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on June 19, 2000 (File No.
333-32446), and incorporated herein by reference.)

3.2 Amended and Restated By-laws of Curis, Inc. (Previously filed with
the SEC as Exhibit 3.2 to the Registration Statement on Form S-1
of Curis, Inc. on December 20, 2000 (File No. 333-50906), and
incorporated herein by reference.)

3.3 Certificate of Designations of Curis, Inc. (Previously filed with
the SEC as Exhibit 3.2 to the Post-Effective Amendment No. 1 on
Form S-3 to the Registration Statement on Form S-1 of Curis, Inc.
(on August 10, 2001 (File No. 333-50906), and incorporated herein
by reference.)

4.1 Form of Common Stock Certificate of Curis, Inc. (Previously filed
with the SEC as Exhibit 4.1 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on May 5, 2000 (File No.
333-32446), and incorporated herein by reference.)

4.2 Registration Rights Agreement, dated as of July 18, 2001, among
Curis, Inc., Elan International Services, Ltd. and Elan Pharma
International Limited. (Previously filed with the SEC as Exhibit
4.1 to the Quarterly Report on Form 10-Q of Curis, Inc. for the
period ended June 30, 2001 (File No. 0-30347), and incorporated
herein by reference.)

4.3 Convertible Promissory Note, dated July 18, 2001, made by Curis,
Inc. in favor of Elan Pharma International Ltd. (Previously filed
with the SEC as Exhibit 4.2 to the Quarterly Report on Form 10-Q
of Curis, Inc. for the period ended September 30, 2001 (File No.
0-30347), and incorporated herein by reference.)

10.1 Master Lease Agreement, dated October 6, 1997, between Creative
BioMolecules, Inc. and FINOVA Technology Finance, Inc. (Previously
filed with the SEC as Exhibit 10.38 to the Annual Report on Form
10-K of Creative BioMolecules, Inc. for the period ended December
31, 1997 (File No. 0-19910), and incorporated herein by
reference.)

10.2 Lease, dated as of November 16, 1995, as amended, between
Ontogeny, Inc. and Moulton Realty Corp. (Previously filed with the
SEC as Exhibit 10.42 to the Joint Proxy Statement-Prospectus on
Form S-4 of Curis, Inc. on March 14, 2000 (File No. 333-32446),
and incorporated herein by reference.)

10.3 Lease, dated as of March 15, 2001, between Curis, Inc. and Moulton
Realty Company. (Previously filed with the SEC as Exhibit 10.3 to
the Annual Report on Form 10-K of Curis, Inc. for the period ended
December 31, 2000 (File No. 0-30347), and incorporated herein by
reference.)

10.4 Lease, dated September 25, 1997, between Reprogenesis, Inc. and 21
Erie Realty Trust. (Previously filed with the SEC as Exhibit 10.36
to the Joint Proxy Statement-Prospectus on Form S-4 of Curis, Inc.
on June 2, 2000 (File No. 333-32446), and incorporated herein by
reference.)

10.5 First Amendment to Lease, dated October 1, 1998, between
Reprogenesis, Inc. and 21 Erie Realty Trust. (Previously filed
with the SEC as Exhibit 10.36 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on June 2, 2000 (File No.
333-32446), and incorporated herein by reference.)

1
>


10.6 Second Amendment to Lease, dated June 29, 2000, between
Reprogenesis, Inc. and 21 Erie Street Trust. (Previously filed
with the SEC as Exhibit 10.1 to the Quarterly Report on Form 10-Q
of Curis, Inc. for the period ended June 30, 2000 (File No.
0-30347), and incorporated herein by reference.)

10.7 Third Amendment to Lease, dated July 31, 2000, between Curis, Inc.
and 21 Erie Street Trust. (Previously filed with the SEC as
Exhibit 10.29 to the Quarterly Report on Form 10-Q of Curis, Inc.
for the period ended September 30, 2000 (File No. 0-30347), and
incorporated herein by reference.)

10.8 Letter Agreement, dated December 27, 2000, between Curis, Inc. and
Fleet National Bank. (Previously filed with the SEC as Exhibit
10.10 to the Annual Report on Form 10-K of Curis, Inc. for the
period ended December 31, 2000 (File No. 0-30347), and
incorporated herein by reference.)

10.9 Promissory Note, dated December 27, 2000, made by Curis, Inc. in
favor of Fleet National Bank. (Previously filed with the SEC as
Exhibit 10.10 to the Annual Report on Form 10-K of Curis, Inc. for
the period ended December 31, 2000 (File No. 0-30347), and
incorporated herein by reference.)

10.10 Pledge Agreement, dated December 27, 2000, from Curis, Inc. to
Fleet National Bank. (Previously filed with the SEC as Exhibit
10.10 to the Annual Report on Form 10-K of Curis, Inc. for the
period ended December 31, 2000 (File No. 0-30347), and
incorporated herein by reference.)

++ 10.11 Master Restructuring Agreement, dated as of October 15, 1998,
between Creative BioMolecules, Inc. and Stryker Corporation.
(Previously filed with the SEC as Exhibit 10.10 to the Annual
Report on Form 10-K of Creative BioMolecules, Inc. for the period
ended December 31, 1998 (File No. 0-19910), and incorporated
herein by reference.)

++ 10.12 Asset Purchase Agreement, dated as of October 15, 1998, between
Creative BioMolecules, Inc. and Stryker Corporation. (Previously
filed with the SEC as Exhibit 10.11 to the Annual Report on
Form 10-K of Creative BioMolecules, Inc. for the period ended
December 31, 1998 (File No. 0-19910), and incorporated
herein by reference.)

10.13 Irrevocable License Agreement, dated November 20, 1998, between
Creative BioMolecules, Inc. and Stryker Corporation. (Previously
filed with the SEC as Exhibit 10.7 to the Annual Report on Form
10-K of Creative BioMolecules, Inc. for the period ended December
31, 1999 (File No. 0-19910), and incorporated herein by
reference.)

10.14 Stryker Irrevocable License Agreement, dated November 20, 1998,
between Creative BioMolecules, Inc. and Stryker Corporation.
(Previously filed with the SEC as Exhibit 10.8 to the Annual
Report on Form 10-K of Creative BioMolecules, Inc. for the period
ended December 31, 1999 (File No. 0-19910), and incorporated
herein by reference.)

10.15 Assignment from Creative BioMolecules, Inc. to Stryker
Corporation, dated November 20, 1998. (Previously filed with the
SEC as Exhibit 10.9 to the Annual Report on Form 10-K of Creative
BioMolecules, Inc. for the period ended December 31, 1999 (File
No. 0-19910), and incorporated herein by reference.)

++ 10.16 CBM Cross-License Agreement, dated as of November 26, 1993,
between Creative BioMolecules, Inc. and Enzon, Inc. (Previously
filed with the SEC as Exhibit 10.42 to the Quarterly Report on
Form 10-Q of Creative BioMolecules, Inc. for the period ended
December 31, 1993 (File No. 0-19910), and incorporated herein by
reference.)

++ 10.17 Enzon Cross-License Agreement, dated as of November 26, 1993,
between Creative BioMolecules, Inc. and Enzon, Inc. (Previously

2
>

filed with the SEC as Exhibit 10.43 to the Quarterly Report on
Form 10-Q of Creative BioMoledule, Inc. for the period ended
December 31, 1993 (File No. 0-19910), and incorporated herein by
reference.)

++ 10.18 Cross-License Agreement, dated as of July 15, 1996, among
Creative BioMolecules, Inc., Genetics Institute, Inc. and Stryker
Corporation. (Previously filed with the SEC as Exhibit 10.1 to the
Quarterly Report on Form 10-Q for the period ended September 30,
1996 of Genetics Institute, Inc. (File No. 0-14587), filed with
the SEC on November 6, 1996 and incorporated herein by reference.)

++ 10.19 License Agreement, dated as of February 12, 1996, between
Curis, Inc. and Leland Stanford Junior University. (Previously
filed with the SEC as Exhibit 10.43 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on June 2, 2000
(File No. 333-32446), and incorporated herein by reference.)

++ 10.20 License Agreement, dated as of September 26, 1996, and as
amended January 15, 1997, among Curis, Inc., Johns Hopkins
University and University of Washington School of Medicine.
(Previously filed with the SEC as Exhibit 10.44 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on June 2, 2000
(File No. 333-32446), and incorporated herein by reference.)

++ 10.21 License Agreement, dated as of January 1, 1995, and as
amended July 19, 1995 and August 30, 1996, between Curis, Inc. and
the Trustees of Columbia University in the City of New York.
(Previously filed with the SEC as Exhibit 10.45 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on April 3, 2000
(File No. 333-32446), and incorporated herein by reference.)

++ 10.22 License Agreement, dated as of February 9, 1995, and as
amended January 1, 1997, between Curis, Inc. and the President and
Fellows of Harvard University. (Previously filed with the SEC as
Exhibit 10.46 to the Joint Proxy Statement-Prospectus on Form S-4
of Curis, Inc. on June 2, 2000 (File No. 333-32446), and
incorporated herein by reference.)

++ 10.23 Amendment to License Agreement, September 11, 2000, between
Curis, Inc. and the President and Fellows of Harvard College.
(Previously filed with the SEC as Exhibit 10.2 to the Quarterly
Report on Form 10-Q of Curis, Inc. for the period ended September
30, 2000 (File No. 0-30347), and incorporated herein by
reference.)

++ 10.24 Exclusive License Agreement, dated as of November 2, 1998,
among Curis, Inc. and the Board of Trustees of Leland Stanford
Junior University and Johns Hopkins University. (Previously filed
with the SEC as Exhibit 10.65 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on June 2, 2000 (File No.
333-32446), and incorporated herein by reference.)

++ 10.25 License Agreement, dated as of February 1, 1997, between
Curis, Inc. and the President and Fellows of Harvard College.
(Previously filed with the SEC as Exhibit 10.69 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on April 3, 2000
(File No. 333-32446), and incorporated herein by reference.)

++ 10.26 License and Collaboration Agreement, dated as of January 5, 2001,
between Curis, Inc. and AEGERA. (Previously filed with the SEC as
Exhibit 10.37 to the Annual Report on Form 10-K of Curis, Inc. for
the period ended December 31, 2000 (File No. 0-30347), and
incorporated herein by reference.)

10.27 Warrant Agreement, dated as of October 1, 1997, between
Curis, Inc. and Lighthouse Capital Partners, L.P. (Previously
filed with the SEC as Exhibit 10.56 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on March 14, 2000 (File No.
333-32446), and incorporated herein by reference.)

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10.28 Warrant Agreement, dated as of December 17, 1999, between
Curis, Inc. and Lighthouse Capital III, L.P. (Previously filed
with the SEC as Exhibit 10.61 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on March 14, 2000 (File No.
333-32446), and incorporated herein by reference.)

10.29 Stock Subscription Warrant, dated as of November 21, 1997,
between Curis, Inc. and MM Ventures. (Previously filed with the
SEC as Exhibit 10.57 to the Joint Proxy Statement-Prospectus on
Form S-4 of Curis, Inc. on March 14, 2000 (File No. 333-32446),
and incorporated herein by reference.)

10.30 Warrant Agreement, dated as of September 1, 1999, between
Curis, Inc. and Comdisco, Inc. (Previously filed with the SEC as
Exhibit 10.59 to the Joint Proxy Statement-Prospectus on Form S-4
of Curis, Inc. on March 14, 2000 (File No. 333-32446), and
incorporated herein by reference.)

10.31 Stock Subscription Warrant, dated as of November 21, 1997,
between Curis, Inc. and Transamerica Business Credit Corp.
(Previously filed with the SEC as Exhibit 10.57 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on March 14, 2000
(File No. 333-32446), and incorporated herein by reference.)

10.32 Stock Subscription Warrant No. 2, dated as of November 15, 1999
between Curis, Inc. and Transamerica Business Credit Corp.
(Previously filed with the SEC as Exhibit 10.60 to the Joint Proxy
Statement-Prospectus on Form S-4 of Curis, Inc. on March 14, 2000
(File No. 333-32446), and incorporated herein by reference.)

10.33 Stock Subscription Warrant, dated July 2, 1998, between
Curis, Inc. and TBCC Funding Trust II. (Previously filed with the
SEC as Exhibit 10.39 to the Joint Proxy Statement-Prospectus on
Form S-4 of Curis, Inc. on March 14, 2000 (File No. 333-32446),
and incorporated herein by reference.)

10.34 Employment Agreement, dated June 17, 1996, between Ontogeny, Inc.
and Dr. Platika. (Previously filed with the SEC as Exhibit 10.44
to the Annual Report on Form 10-K of Curis, Inc. for the period
ended December 31, 2000 (File No. 0-30347), and incorporated
herein by reference.)

10.35 Secured Promissory Note, dated June 17, 1996, between Ontogeny,
Inc. and Dr. Platika in the original principal amount of $500,000,
as amended by that First Amendment to Secured Promissory Note,
dated as of August 31, 1998, and that Second Amendment to Secured
Promissory Note, dated as of December 15, 1999. (Previously filed
with the SEC as Exhibit 10.63 to the Joint Proxy Statement-
Prospectus on Form S-4 of Curis, Inc. on May 31, 2000 (File No.
333-32446), and incorporated herein by reference.)

10.36 Pledge Agreement, dated June 17, 1996, between Ontogeny, Inc. and
Dr. Platika. (Previously filed with the SEC as Exhibit 10.64 to
the Joint Proxy Statement-Prospectus on Form S-4 of Curis, Inc. on
March 14, 2000 (File No. 333-32446), and incorporated herein by
reference.)

10.37 Mortgage, dated December 15, 1999, between Ontogeny, Inc. and Dr.
and Patricia C. Platika. (Previously filed with the SEC as Exhibit
10.70 to the Joint Proxy Statement-Prospectus on Form S-4 of
Curis, Inc. on May 31, 2000 (File No. 333-32446), and incorporated
herein by reference.)

10.38 Severance Agreement, effective November 20, 2000, between
Curis, Inc. and Andrew C. G. Uprichard. (Previously filed with the
SEC as Exhibit 10.1 to the Quarterly Report on Form 10-Q of Curis,
Inc. for the period ended March 31, 2001 (File No. 0-30347), and
incorporated herein by reference.)

4
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10.39 Severance Agreement, effective November 1, 2000, between
Curis, Inc. and Daniel R. Passeri. (Previously filed with the SEC
as Exhibit 10.2 to the Quarterly Report on Form 10-Q of Curis,
Inc. for the period ended March 31, 2001 (File No. 0-30347), and
incorporated herein by reference.)

10.40 Securities Purchase Agreement, dated as of July 18, 2001, among
Curis, Inc., Elan International Services, Ltd. and Elan Pharma
International Limited. (Previously filed with the SEC as Exhibit
10.1 to the Quarterly Report on Form 10-Q of Curis, Inc. for the
period ended June 30, 2001 (File No. 0-30347), and incorporated
herein by reference.)

10.41 Agreement for Purchase and Sale of Single-Chain Polypeptide
Business, dated as of June 29, 2001, between Curis, Inc. and
Micromet AG. (Previously filed with the SEC as an Exhibit to the
Current Report on Form 8-K of Curis, Inc. (filed July 2, 2001
(File No. 0-30347)), and incorporated herein by reference.)

10.42 Secured Promissory Note, dated August 3, 2001, made by Dr. Platika
in favor of Curis, Inc. (Previously filed with the SEC as Exhibit
10.2 to the Quarterly Report on Form 10-Q of Curis, Inc. for the
period ended September 30, 2001 (File No. 0-30347), and
incorporated herein by reference.)

10.43 Employment Agreement, dated September 20, 2001, between Curis,
Inc. and Daniel R. Passeri. (Previously filed with the SEC as
Exhibit 10.3 to the Quarterly Report on Form 10-Q of Curis, Inc.
for the period ended September 30, 2001 (File No. 0-30347), and
incorporated herein by reference.)

* 10.44 Revised Severance Agreement, effective November 5, 2001, between
Curis, Inc. and Andrew C. G. Uprichard.

* 10.45 First Amendment to the Secured Promissory Note, dated August 3,
2001, made by Dr. Platika in favor of Curis, Inc.

* 10.46 Letter Agreement, dated January 28, 2002, between Dr. Platika and
Curis, Inc.

* 10.47 Letter Agreement, dated March 12, 2002, between Dr. Platika and
Curis, Inc.

* 10.48 Letter Agreement, dated March 6, 2002, between George A. Eldridge
and Curis, Inc.

* 21 Subsidiaries of Curis, Inc.

* 23.1 Consent of Arthur Andersen LLP.

* 23.2 Consent of Deloitte & Touche LLP.

* 99.1 Letter to Commission Pursuant to Temporary Note 3T.

- ----------
++ Confidential treatment has been granted as to certain portions of this
exhibit.
* filed herewith.

Curis, Inc. hereby agrees to furnish supplementally any schedules that have been
omitted from this exhibit list to the SEC upon its request.

5