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SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549


FORM 10-Q

(Mark One)

     
[X]   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND
    EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2003

OR

     
[  ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND
    EXCHANGE ACT OF 1934

For the transition period from              to              

Commission file number 0-28150

NEUROCRINE BIOSCIENCES, INC.

(Exact name of registrant as specified in its charter)
     
DELAWARE   33-0525145
(State or other jurisdiction of   (IRS Employer Identification No.)
incorporation or organization)    

10555 SCIENCE CENTER DRIVE
SAN DIEGO, CALIFORNIA 92121

(Address of principal executive offices)

(858) 658-7600
(Registrant’s telephone number, including area code)

     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 þ  No o

     Indicate by check mark whether the registrant is an accelerated filer (as defined in rule 12b-2 of the Exchange Act): Yes þ  No o

     The number of outstanding shares of the registrant’s common stock, par value $0.001 per share, was 35,268,258 as of November 5, 2003.




TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
CONDENSED CONSOLIDATED BALANCE SHEETS
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
ITEM 4. CONTROLS AND PROCEDURES
PART II: OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS
ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K
SIGNATURES
EXHIBIT 10.1
EXHIBIT 10.2
EXHIBIT 10.3
EXHIBIT 10.4
EXHIBIT 10.5
EXHIBIT 10.6
EXHIBIT 31.1
EXHIBIT 31.2
EXHIBIT 32


Table of Contents

NEUROCRINE BIOSCIENCES, INC.
FORM 10-Q INDEX

                 
            PAGE
           
PART I.  
FINANCIAL INFORMATION
       
ITEM 1:  
Financial Statements
    3  
       
Condensed Consolidated Balance Sheets as of September 30, 2003 and December 31, 2002
    3  
       
Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2003 and 2002
    4  
       
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2003 and 2002
    5  
       
Notes to the Condensed Consolidated Financial Statements
    6  
ITEM 2:  
Management’s Discussion and Analysis of Financial Condition and Results of Operations
    9  
ITEM 3:  
Quantitative and Qualitative Disclosures About Market Risk
    24  
ITEM 4:  
Controls and Procedures
    24  
PART II.  
OTHER INFORMATION
       
ITEM 1:  
Legal Proceedings
    25  
ITEM 6:  
Exhibits and Reports on Form 8-K
    25  
       
Signatures
    26  

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PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

NEUROCRINE BIOSCIENCES, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands, except for share information)

                         
            September 30,   December 31,
            2003   2002
           
 
            (unaudited)        
     
ASSETS
               
Current assets:
               
 
Cash and cash equivalents
  $ 123,820     $ 44,313  
 
Short-term investments, available-for-sale
    318,957       200,397  
 
Receivables under collaborative agreements
    16,397       247  
 
Other current assets
    5,200       3,137  
 
   
     
 
       
Total current assets
    464,374       248,094  
Property and equipment, net
    58,289       14,102  
Restricted cash and other non-current assets
    29,739       4,343  
 
   
     
 
       
Total assets
  $ 552,402     $ 266,539  
 
   
     
 
   
LIABILITIES AND STOCKHOLDERS’ EQUITY
               
Current liabilities:
               
 
Accounts payable
  $ 1,912     $ 1,959  
 
Accrued liabilities
    58,524       22,163  
 
Deferred revenues
    51,416       5,699  
 
Current portion of long-term debt
    3,422       2,658  
 
   
     
 
       
Total current liabilities
    115,274       32,479  
Long-term debt, net of current portion
    19,105       5,277  
Deferred rent
          2,645  
Deferred revenues
    29,185       833  
Other liabilities
    2,009       1,051  
 
   
     
 
       
Total liabilities
    165,573       42,285  
Stockholders’ equity:
               
 
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued and outstanding
           
 
Common stock, $0.001 par value; 50,000,000 shares authorized; issued and outstanding shares were 35,262,670 as of September 30, 2003 and 30,662,273 as of December 31, 2002
    35       31  
 
Additional paid-in capital
    620,724       424,084  
 
Deferred compensation
    (891 )     (1,240 )
 
Notes receivable from stockholders
    (208 )     (208 )
 
Accumulated other comprehensive income
    2,544       3,513  
 
Accumulated deficit
    (235,375 )     (201,926 )
 
   
     
 
       
Total stockholders’ equity
    386,829       224,254  
 
   
     
 
       
Total liabilities and stockholders’ equity
  $ 552,402     $ 266,539  
 
 
   
     
 

See accompanying notes to the condensed consolidated financial statements.

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NEUROCRINE BIOSCIENCES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except loss per share data)

                                     
        Three Months Ended   Nine Months Ended
        September 30,   September 30,
       
 
        2003   2002   2003   2002
       
 
 
 
        (unaudited)   (unaudited)
Revenues:
                               
 
Sponsored research and development
  $ 17,580     $ 3,574     $ 81,651     $ 10,712  
 
License fees and milestones
    11,319       831       29,306       1,997  
 
Grant income
    360       578       986       1,458  
 
   
     
     
     
 
   
Total revenues
    29,259       4,983       111,943       14,167  
Operating expenses:
                               
 
Research and development
    37,537       24,231       138,184       67,374  
 
General and administrative
    5,296       3,253       15,175       9,135  
 
   
     
     
     
 
   
Total operating expenses
    42,833       27,484       153,359       76,509  
Loss from operations
    (13,574 )     (22,501 )     (41,416 )     (62,342 )
Other income and (expenses):
                               
 
Interest income
    3,724       2,458       8,518       6,785  
 
Interest expense
          (175 )     (518 )     (367 )
 
Other income and (expense), net
    19       (16 )     123       175  
 
   
     
     
     
 
   
Total other income and (expenses)
    3,743       2,267       8,123       6,593  
 
   
     
     
     
 
Loss before income taxes
    (9,831 )     (20,234 )     (33,293 )     (55,749 )
Income taxes
    3             156        
 
   
     
     
     
 
Net loss
  $ (9,834 )   $ (20,234 )   $ (33,449 )   $ (55,749 )
 
   
     
     
     
 
Net loss per share:
                               
 
Basic and diluted
  $ (0.31 )   $ (0.66 )   $ (1.07 )   $ (1.83 )
Shares used in the calculation of net loss per share:
                               
 
Basic and diluted
    32,053       30,522       31,397       30,447  

See accompanying notes to the condensed consolidated financial statements.

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NEUROCRINE BIOSCIENCES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

                       
          Nine Months Ended
          September 30,
         
          2003   2002
         
 
          (unaudited)
CASH FLOW FROM OPERATING ACTIVITIES
               
Net loss
  $ (33,449 )   $ (55,749 )
Adjustments to reconcile net loss to net cash used in operating activities:
               
   
Depreciation and amortization
    2,893       2,188  
   
Deferred revenues
    74,069       (372 )
   
Deferred expenses
    (956 )     404  
   
Non-cash compensation expenses
    662       692  
   
Change in operating assets and liabilities:
               
     
Accounts receivable and other current assets
    (17,961 )     5,324  
     
Restricted cash and other non-current assets
    (24,733 )     (886 )
     
Accounts payable and accrued liabilities
    36,236       1,821  
     
Other non-current liabilities
    2,009        
 
   
     
 
Net cash provided by (used in) operating activities
    38,770       (46,578 )
CASH FLOW FROM INVESTING ACTIVITIES
               
Purchases of short-term investments
    (362,439 )     (331,858 )
Sales/maturities of short-term investments
    242,908       272,112  
Deposits
    (3,000 )      
Purchases of property and equipment
    (33,003 )     (3,994 )
 
   
     
 
Net cash used in investing activities
    (155,534 )     (63,740 )
CASH FLOW FROM FINANCING ACTIVITIES
               
Issuance of common stock
    195,731       1,950  
Proceeds from issuance of long-term debt
    16,747       2,742  
Principal payments on long-term obligations
    (16,207 )     (1,740 )
Payments received on notes receivable from stockholders
          104  
 
   
     
 
Net cash provided by financing activities
    196,271       3,056  
 
   
     
 
Net increase (decrease) in cash and cash equivalents
    79,507       (107,262 )
Cash and cash equivalents at beginning of the period
    44,313       163,888  
 
   
     
 
Cash and cash equivalents at end of the period
  $ 123,820     $ 56,626  
 
   
     
 
Supplemental information:
               
 
Increase in property and related debt resulting from increasing ownership percentage in Science Park Center LLC
  $ 14,076     $  
 
   
     
 

See accompanying notes to the condensed consolidated financial statements.

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NEUROCRINE BIOSCIENCES, INC.
NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(unaudited)

1. BASIS OF PRESENTATION

     The condensed consolidated financial statements included herein are unaudited. These statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions of the Securities and Exchange Commission (SEC) on Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, these financial statements include all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods presented. The results of operations for the interim periods shown in this report are not necessarily indicative of results expected for the full year.

     In May 2003, Neurocrine Biosciences, Inc. increased its ownership interest in Science Center Park, LLC from 1% to 50.5%, effective April 1, 2003 (see Note 9 below). Accordingly, the financial statements of the Science Center Park, LLC are included in the condensed consolidated financial statements at September 30, 2003 and for the three and nine months ended September 30, 2003.

     These financial statements should be read in conjunction with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” “Quantitative and Qualitative Disclosures About Market Risk” and the audited financial statements and notes thereto for the year ended December 31, 2002 included in our Annual Report on Form 10-K filed with the SEC.

     The terms “Company” and “we” and “our” are used in this report to refer collectively to Neurocrine Biosciences, Inc. and its subsidiaries.

2. USE OF ESTIMATES

     The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the accompanying notes. Actual results could differ from those estimates.

3. SHORT-TERM INVESTMENTS AVAILABLE-FOR-SALE

     Available-for-sale securities are carried at fair value, with the unrealized gains and losses reported in comprehensive income. The amortized cost of debt securities in this category is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization is included in interest income. Realized gains and losses and declines in value judged to be other-than-temporary, if any, on available-for-sale securities are included in interest income or expense. The cost of securities sold is based on the specific identification method. Interest and dividends on securities classified as available-for-sale are included in interest income.

4. IMPAIRMENT OF LONG-LIVED ASSETS

     In accordance with Statement of Financial Accounting Standard (SFAS) No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets,” if indicators of impairment exist, the Company assesses the recoverability of the affected long-lived assets by determining whether the carrying value of such assets can be recovered through undiscounted future operating cash flows. If impairment is indicated, the Company measures the amount of such impairment by comparing the carrying value of the asset to the present value of the expected future cash flows associated with the use of the asset. While the Company’s current and historical operating and cash flow losses are indicators of impairment, the Company believes the future cash flows to be received from the long-lived assets will exceed the assets’ carrying value, and accordingly the Company has not recognized any impairment losses through September 30, 2003.

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5. LOSS PER COMMON SHARE

     The Company computes net loss per share in accordance with SFAS No. 128, “Earnings Per Share.” Under the provisions of SFAS No. 128, basic net loss per share is computed by dividing the net loss for the period by the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing the net loss for the period by the weighted average number of common and common equivalent shares outstanding during the period. Additionally, potentially dilutive securities, composed of incremental common shares issuable upon the exercise of stock options and warrants, are excluded from historical diluted loss per share because of their anti-dilutive effect. Potentially dilutive securities totaled 2.0 million for the periods ended September 30, 2003 and 2002, and were excluded from the diluted earnings per share because of their anti-dilutive effect.

6. COMPREHENSIVE LOSS

     Comprehensive loss is calculated in accordance with SFAS No. 130, “Comprehensive Income.” SFAS No. 130 requires the disclosure of all components of comprehensive loss, including net loss and changes in equity during a period from transactions and other events and circumstances generated from non-owner sources. The Company’s components of comprehensive loss consist of the net loss and unrealized gains and losses on short-term investments. For the three months ended September 30, 2003 and 2002, comprehensive loss was $11.7 million and $18.3 million, respectively. For the nine months ended September 30, 2003 and 2002, comprehensive loss was $34.4 million and $53.3 million, respectively.

7. REVENUE RECOGNITION

     Revenue under collaborative research agreements and grants is recognized as research costs are incurred over the period specified in the related agreement or as the services are performed. These agreements are on a best-efforts basis and do not require scientific achievement as a performance obligation, and provide for payment to be made when costs are incurred or the services are performed. All fees are nonrefundable to the collaborators. Up-front, nonrefundable payments for license fees and advance payments for sponsored research revenues received in excess of amounts earned are classified as deferred revenue and recognized as income over the contract or development period. Estimating the duration of the development period includes continual assessment of development stages and regulatory requirements. Milestone payments are recognized as revenue upon achievement of pre-defined scientific events which require substantive effort. Revenues from government grants are recognized based on a percentage-of-completion basis as the related costs are incurred.

     The increase in revenues for the three and nine months ended September 30, 2003 resulted primarily from reimbursement of clinical development expenses under the Pfizer, Inc. (Pfizer) collaboration agreement of $16.1 million and $77.3 million for the three and nine months ended September 30, 2003, respectively. In addition, the Company is amortizing a $100.0 million up front payment received from Pfizer in the first quarter of 2003 over the time period until commercialization of the Company’s indiplon product and has recognized $10.9 million and $27.0 million in license fee revenues during the three and nine months ended September 30, 2003, respectively.

8. RESEARCH AND DEVELOPMENT EXPENSES

     Research and development (R&D) expenses are recognized as incurred and include related salaries, contractor fees, facilities costs, administrative expenses and allocations of certain other costs. All such costs are charged to R&D expenses as incurred. These expenses result from our independent R&D efforts as well as efforts associated with collaborations, grants and in-licensing arrangements. In addition, we fund R&D, conducted on our behalf, at other companies and research institutions under agreements, which are generally cancelable. We review and accrue clinical trials expense based on work performed, which relies on estimates of total costs incurred based on completion of patient studies and other events. We follow this method because reasonably dependable estimates of the costs applicable to various stages of a research agreement or clinical trial can be made. Accrued clinical costs are subject to revisions as trials progress to completion. Revisions are charged to expense in the period in which the facts that give rise to the revision become known.

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9. SUBSIDIARIES

     In May 1997, the Company along with two unrelated parties formed Science Park Center LLC (Science Park) in order to construct an office and laboratory facility which was subsequently leased by the Company. Science Park is a California limited liability company, of which the Company, prior to April 2003, owned only a nominal minority interest. The Company became the majority owner of Science Park effective April 1, 2003, and accordingly the Company now consolidates Science Park in the Company’s financial statements. The net effect of the transaction on the Company’s consolidated financial statements was to increase property and equipment and long-term debt on the Company’s consolidated balance sheet by approximately $14.0 million each at June 30, 2003. In August 2003, the Company retired the outstanding long-term debt of approximately $14.0 million through a lump sum payment.

     The Company also recently formed Neurocrine International LLC, a Delaware limited liability company in which the Company holds a 99% ownership interest and Science Park holds a 1% interest.

10. STOCKHOLDERS’ EQUITY

     The Company applies the intrinsic-value-based method prescribed in APB Opinion No. 25, “Accounting for Stock Issued to Employees,” in accounting for employee stock options. Accordingly, compensation expense is generally recognized only when options are granted with a discounted exercise price. Any resulting compensation expense is recognized ratably over the associated service period, which is generally the option vesting term.

     The Company has determined pro forma net loss and related per share information as if the fair value method described in SFAS No. 123, “Accounting for Stock Based Compensation,” had been applied to its employee stock-based compensation. The pro forma effect on net loss and net loss per share is as follows for the three and nine months ended September 30, 2003 and 2002 (in thousands, except for loss per share data):

                                   
      Three Months Ended   Nine Months Ended
      September 30,   September 30,
     
 
      2003   2002   2003   2002
     
 
 
 
Net loss:
                               
 
As reported
  $ (9,834 )   $ (20,234 )   $ (33,449 )   $ (55,749 )
 
Stock option expense
    (4,238 )     (2,703 )     (14,569 )     (9,985 )
 
   
     
     
     
 
Pro forma net loss
  $ (14,072 )   $ (22,937 )   $ (48,018 )   $ (65,734 )
 
   
     
     
     
 
Loss per share as reported (basic and diluted)
  $ (0.31 )   $ (0.66 )   $ (1.07 )   $ (1.83 )
Pro forma loss per share (basic and diluted)
  $ (0.44 )   $ (0.75 )   $ (1.53 )   $ (2.16 )

     During September 2003, we issued 3.75 million shares of our common stock at a price of $53.00 per share which resulted in net proceeds of approximately $187.4 million.

11. REAL ESTATE TRANSACTIONS

     We currently have approximately 93,000 square feet of space at our headquarters in San Diego, California, of which approximately 65% is laboratory space dedicated to research and development. During April 2003, the Company, entered into an agreement with a third party to sell the Company’s current headquarters and an adjacent undeveloped parcel of land for approximately $40 million. The Company anticipates closing the sale of both parcels during the fourth quarter of 2003, and has negotiated a leaseback provision, as part of the sale agreements, to allow for the completion of the construction of the Company’s new facility. The Company expects to recognize a financial statement gain on the sale of the property in November 2003 of approximately $18.0 million.

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     In May 2003, the Company, entered into an agreement to acquire undeveloped real property in San Diego, California for approximately $17.0 million to construct a new corporate facility. Science Park has also placed a deposit of $3.5 million, which amount is included in restricted cash and other non-current assets on the Company’s consolidated balance sheet, and a $4.4 million irrevocable standby letter of credit for an adjacent parcel of land, which it intends to purchase in early 2004. The letter of credit is secured by a $4.4 million cash deposit, which amount is included in restricted cash and other non-current assets, with the issuer and expires in February 2004.

     Additional costs the Company expects to incur in connection with these two properties include design and construction costs as well as the purchase and installation of equipment and furnishings for these facilities. The Company estimates these costs at $43 million and expects to finance these costs through the net proceeds of the sale of the existing facility, a construction loan and a subsequent permanent financing. Construction of the new facility commenced in June 2003 and is expected to be completed in July 2004. Capitalized construction costs totaled $11.0 million at September 30, 2003.

     The Company has secured a construction loan from a commercial bank for up to $60.6 million to finance the construction of the new facility. The loan requires a guaranty deposit of $17.5 million, which amount is included in restricted cash and other non-current assets, to be maintained at the bank for the duration of the loan. The loan bears interest at the prime rate plus .75 percentage points, and interest is payable monthly. In accordance with SFAS No. 34, applicable interest cost will be capitalized during the construction period.

     The Company has structured the sale of the existing campus and the acquisition and construction of the new campus are intended to qualify as “like-kind” exchanges within the meaning of Internal Revenue Code Section 1031.

12. NEW ACCOUNTING PRONOUNCEMENTS

     In November 2002, the Emerging Issues Task Force (EITF) reached a consensus on Issue No. 00-21, “Revenue Arrangements with Multiple Deliverables.” EITF Issue No. 00-21 provides guidance on how to account for arrangements that involve the delivery or performance of multiple products, services and/or rights to use assets. We were required to adopt this provision for revenue arrangements entered into on or after June 30, 2003. The adoption of EITF 00-21 did not have a material effect on our results of operations or financial condition.

     In December 2002, the FASB issued SFAS No. 148, “Accounting for Stock-Based Compensation, Transition and Disclosure.” SFAS No. 148 provides alternative methods of transition for a voluntary change to the fair value based method of accounting for stock-based employee compensation. SFAS No. 148 also requires that disclosures of the pro forma effect of using the fair value method of accounting for stock-based employee compensation be displayed more prominently and in tabular format in interim and annual financial statements. The transition and annual disclosure requirements are effective for fiscal year 2003. The Company adopted the interim disclosure requirement in its Consolidated Condensed Financial Statements in the first quarter of fiscal 2003 as disclosed in Note 10.

ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

     The following Management’s Discussion and Analysis of Financial Condition and Results of Operations section contains forward-looking statements, which involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth below under the caption “Risk Factors.” The interim financial statements and this Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the Financial Statements and Notes thereto for the year ended December 31, 2002 and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, both of which are contained in our Annual Report on Form 10-K for the year ended December 31, 2002.

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OVERVIEW

     We incorporated in California in 1992 and reincorporated in Delaware in 1996. Since inception, we have been engaged in the discovery and development of novel pharmaceutical products for neurological and endocrine-related diseases and disorders. Our product candidates address some of the largest pharmaceutical markets in the world including insomnia, anxiety, depression, various female and male health disorders, multiple sclerosis, diabetes and other neuro-endocrine related diseases and disorders. To date, we have not generated any revenues from the sale of products, and we do not expect to generate any product revenues until the Food and Drug Administration (FDA) approves one of our drug candidates. Our lead clinical development program, indiplon, is a drug for the treatment of insomnia and is currently being evaluated in Phase III clinical trials in collaboration with Pfizer. We currently anticipate filing a New Drug Application (NDA) for indiplon in the first half of 2004. We have funded our operations primarily through private and public offerings of our common stock and payments received under research and development agreements. We are developing a number of products with corporate collaborators and will rely on existing and future collaborators to meet funding requirements. We expect to generate future net losses in anticipation of significant increases in operating expenses as product candidates are advanced through the various stages of clinical development. As of September 30, 2003, we have incurred an accumulated deficit of $235.4 million and expect to incur operating losses in the future.

CRITICAL ACCOUNTING POLICIES

     Our discussion and analysis of our financial condition and results of operations is based upon our financial statements, which we have prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities and expenses, and related disclosures. On an ongoing basis, we evaluate these estimates, including those related to revenues under collaborative research agreements and grants, clinical trial accruals (which affect research and development expenses), and fixed assets. Estimates are based on historical experience, information received from third parties and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. The items in our financial statements requiring significant estimates and judgments are as follows:

     Revenues under collaborative research agreements and grants are recognized as research costs are incurred over the period specified in the related agreement or as the services are performed. These agreements are on a best-efforts basis and do not require scientif