Form 10-Q
Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 


FORM 10-Q

 


 

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2006

or

 

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

Commission File Number: 000-50768

 


ACADIA PHARMACEUTICALS INC.

(Exact Name of Registrant as Specified in Its Charter)

 


 

Delaware   06-1376651
(State of Incorporation)  

(I.R.S. Employer

Identification No.)

3911 Sorrento Valley Boulevard

San Diego, California

  92121
(Address of Principal Executive Offices)   (Zip Code)

(858) 558-2871

(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 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 whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “large accelerated filer” and “accelerated filer” in Rule 12b-2 of the Securities Exchange Act of 1934:

Large accelerated filer  ¨            Accelerated filer  x            Non-accelerated filer  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  ¨    No  x

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Total shares of common stock outstanding as of the close of business on May 3, 2006:

 

Class

 

Number of Shares Outstanding

Common Stock, $0.0001 par value   29,346,073

 



Table of Contents

ACADIA PHARMACEUTICALS INC.

FORM 10-Q

TABLE OF CONTENTS

 

          PAGE
NO.

TABLE OF CONTENTS

   i

PART I. FINANCIAL INFORMATION

  

Item 1.

  

Condensed Consolidated Financial Statements (Unaudited)

  
  

Condensed Consolidated Balance Sheets as of March 31, 2006 and December 31, 2005

   1
  

Condensed Consolidated Statements of Operations for the Three Months Ended March 31, 2006 and 2005

   2
  

Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2006 and 2005

   3
  

Notes to Condensed Consolidated Financial Statements

   4

Item 2.

  

Management’s Discussion and Analysis of Financial Condition and Results of Operations

   9

Item 3.

  

Quantitative and Qualitative Disclosures About Market Risk

   16

Item 4.

  

Controls and Procedures

   16

PART II. OTHER INFORMATION

  

Item 1A.

  

Risk Factors

   17

Item 6.

  

Exhibits

   29

SIGNATURES

   30

 

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PART I. FINANCIAL INFORMATION

 

ITEM 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

ACADIA PHARMACEUTICALS INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

 

    

March 31,

2006

   

December 31,

2005(1)

 

Assets

    

Cash and cash equivalents

   $ 11,264,000     $ 9,796,000  

Investment securities, available-for-sale

     32,420,000       33,205,000  

Restricted cash

     12,520,000       12,520,000  

Prepaid expenses, receivables and other current assets

     4,917,000       4,604,000  
                

Total current assets

     61,121,000       60,125,000  

Property and equipment, net

     2,299,000       2,283,000  

Other assets

     98,000       98,000  
                
   $ 63,518,000     $ 62,506,000  
                

Liabilities and Stockholders’ Equity

    

Accounts payable

   $ 733,000     $ 2,073,000  

Accrued expenses

     7,227,000       6,582,000  

Accrued loss from litigation

     8,937,000       8,710,000  

Current portion of deferred revenue

     4,041,000       3,446,000  

Current portion of long-term debt

     805,000       890,000  
                

Total current liabilities

     21,743,000       21,701,000  
                

Other long-term liabilities

     1,183,000       542,000  

Long-term debt, less current portion

     733,000       892,000  
                

Total liabilities

     23,659,000       23,135,000  
                

Commitments and contingencies (Note 7)

    

Stockholders’ equity

    

Preferred stock, $0.0001 par value; 5,000,000 shares authorized at March 31, 2006 and December 31, 2005; no shares issued and outstanding at March 31, 2006 and December 31, 2005

     —         —    

Common stock, $0.0001 par value; 75,000,000 shares authorized at March 31, 2006 and December 31, 2005; 24,390,703 shares and 23,517,876 shares issued and outstanding at March 31, 2006 and December 31, 2005, respectively

     2,000       2,000  

Additional paid-in capital

     177,910,000       168,426,000  

Accumulated deficit

     (137,885,000 )     (128,418,000 )

Unearned stock-based compensation

     (310,000 )     (773,000 )

Accumulated other comprehensive income

     142,000       134,000  
                

Total stockholders’ equity

     39,859,000       39,371,000  
                
   $ 63,518,000     $ 62,506,000  
                

(1) The condensed consolidated balance sheet at December 31, 2005 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.

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

 

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ACADIA PHARMACEUTICALS INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

 

     Three Months Ended
March 31,
 
     2006     2005  

Revenues

    

Collaborative revenues

   $ 2,537,000     $ 2,325,000  
                

Operating expenses

    

Research and development (includes stock-based compensation of $559,000 and $211,000 for the three months ended March 31, 2006 and 2005, respectively)

     10,126,000       6,327,000  

General and administrative (includes stock-based compensation of $341,000 and $160,000 for the three months ended March 31, 2006 and 2005, respectively)

     2,284,000       1,798,000  

Provision for loss from litigation

     227,000       —    
                

Total operating expenses

     12,637,000       8,125,000  
                

Loss from operations

     (10,100,000 )     (5,800,000 )

Interest income

     625,000       261,000  

Interest expense

     (43,000 )     (50,000 )
                

Loss before change in accounting principle

   $ (9,518,000 )   $ (5,589,000 )

Cumulative effect of change in accounting principle

     51,000       —    
                

Net loss

   $ (9,467,000 )   $ (5,589,000 )
                

Net loss per common share, basic and diluted:

    

Before change in accounting principle

   $ (0.39 )   $ (0.31 )

Cumulative effect of change in accounting principle

     —         —    
                

Net loss per common share, basic and diluted

   $ (0.39 )   $ (0.31 )
                

Weighted average common shares outstanding, basic and diluted

     24,308,000       17,903,000  
                

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

 

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ACADIA PHARMACEUTICALS INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

 

     Three Months Ended
March 31,
 
     2006     2005  

Cash flows from operating activities

    

Net loss

   $ (9,467,000 )   $ (5,589,000 )

Adjustments to reconcile net loss to net cash used in operating activities:

    

Depreciation and amortization

     189,000       306,000  

Stock-based compensation

     900,000       371,000  

Loss on disposal of equipment

     9,000       —    

Cumulative effect of change in accounting principle

     (51,000 )     —    

Changes in operating assets and liabilities:

    

Prepaid expenses, receivables and other current assets

     (313,000 )     (140,000 )

Accounts payable

     (1,340,000 )     (768,000 )

Accrued expenses

     645,000       31,000  

Accrued loss from litigation

     227,000       —    

Current portion of deferred revenue

     595,000       5,521,000  

Other long-term liabilities

     641,000       —    
                

Net cash used in operating activities

     (7,965,000 )     (268,000 )
                

Cash flows from investing activities

    

Purchases of investment securities

     (6,924,000 )     (11,460,000 )

Maturities of investment securities

     7,727,000       8,643,000  

Purchases of property and equipment

     (199,000 )     (91,000 )
                

Net cash provided by (used in) investing activities

     604,000       (2,908,000 )
                

Cash flows from financing activities

    

Proceeds from issuance of common stock, net of issuance costs

     9,098,000       6,956,000  

Repayments of long-term debt

     (244,000 )     (833,000 )
                

Net cash provided by financing activities

     8,854,000       6,123,000  
                

Effect of exchange rate changes on cash

     (25,000 )     (13,000 )
                

Net increase in cash and cash equivalents

     1,468,000       2,934,000  

Cash and cash equivalents

    

Beginning of period

     9,796,000       8,302,000  
                

End of period

   $ 11,264,000     $ 11,236,000  
                

Supplemental schedule of noncash investing and financing activities

    

Unrealized gain (loss) on investment securities

   $ 18,000     $ (32,000 )

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

 

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ACADIA PHARMACEUTICALS INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2006

(Unaudited)

1. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of ACADIA Pharmaceuticals Inc. (together with its wholly owned subsidiaries, ACADIA Pharmaceuticals AB and ACADIA Pharmaceuticals A/S, the “Company”) should be read in conjunction with the audited financial statements and notes thereto as of and for the year ended December 31, 2005 included in the Company’s Annual Report on Form 10-K (“Annual Report”) filed with the Securities and Exchange Commission (the “SEC”). The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, since they are interim statements, the accompanying financial statements do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, the accompanying financial statements reflect all adjustments (consisting of normal recurring adjustments) that are necessary for a fair statement of the financial position, results of operations and cash flows for the interim periods presented. Interim results are not necessarily indicative of results for a full year.

The preparation of financial statements in conformity with GAAP 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.

2. Earnings (Loss) Per Share

Basic earnings (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period increased to include potential dilutive common shares that were outstanding during the period. The effect of outstanding stock options, restricted vesting common stock and warrants, when dilutive, is reflected in diluted earnings (loss) per common share by application of the treasury stock method. The Company has excluded all outstanding stock options, restricted vesting common stock and warrants from the calculation of diluted net loss per common share because all such securities are antidilutive for all periods presented.

Shares used in calculating basic and diluted net loss per common share exclude these potential common shares:

 

     Three Months Ended
March 31,
     2006    2005
     (unaudited)

Antidilutive options to purchase common stock

   2,417,000    1,939,000

Antidilutive warrants to purchase common stock

   1,393,000    74,000

Restricted vesting common stock

   51,000    125,000
         
   3,861,000    2,138,000
         

3. Stock-Based Compensation

Stock Plans

The Company’s 1997 stock option plan (the “1997 Plan”), as amended, provided for the grant of incentive stock options and nonqualified stock options to employees, officers, directors, consultants and advisors of the Company. The exercise price of each option grant was set at the fair market value for the Company’s common stock as determined by the Company’s Board of Directors and each option’s maximum term was ten years. Options granted under the 1997 Plan generally vest over a four-year period. The 1997 Plan permitted grants to certain employees allowing those employees to early exercise their options for restricted shares of the Company’s common stock that were subject to the original vesting

 

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terms of the option. Restricted shares are generally subject to a repurchase option in favor of the Company that is exercisable upon termination of the employment of the optionee at an amount per share equal to the purchase price of the restricted shares. During the three months ended March 31, 2006, 15,777 restricted common shares with an aggregate intrinsic value of $235,000 vested, leaving 43,590 restricted shares with an aggregate intrinsic value of $649,000 outstanding and subject to repurchase at period end. Upon the closing of the Company’s initial public offering on June 2, 2004, all shares that remained eligible for grant under the 1997 Plan were transferred to the Company’s 2004 Equity Incentive Plan (the “2004 Plan”).

The 2004 Plan became effective upon the closing of the initial public offering on June 2, 2004. The 2004 Plan permits the grant of options to directors, officers, other employees, and consultants. In addition, the 2004 Plan permits the grant of stock bonuses, rights to purchase restricted stock, and other stock awards. The exercise price of options granted under the 2004 Plan is determined in accordance with the guidelines set forth in the 2004 Plan. The exercise price of a stock option cannot be less than 100 percent of the fair market value of the common stock on the date of grant and the maximum term of any option is ten years. Options granted under the 2004 Plan generally vest over a four-year period. At March 31, 2006, the number of shares authorized for issuance under the 2004 Plan was 1,486,884 shares of common stock, which included the 745,233 shares that remained eligible for grant under the 1997 Plan at June 2, 2004. The 2004 Plan includes an “evergreen” provision providing that an additional number of shares will automatically be added to the shares authorized for issuance at each annual meeting of stockholders for a period of five years, which began with the meeting in 2005. The 2004 Plan share reserve may also be increased by the number of shares, if any, that would otherwise have reverted to the 1997 Plan reserve after June 2, 2004. At March 31, 2006, there were 239,499 shares of common stock available for new grants under the 2004 Plan.

The Company’s 2004 Employee Stock Purchase Plan (the “Purchase Plan”) became effective upon the closing of the initial public offering on June 2, 2004. The Purchase Plan includes an “evergreen” provision providing that an additional number of shares will automatically be added to the shares authorized for issuance at each annual meeting of stockholders for a period of ten years, which began with the meeting in 2005. A total of 275,000 shares of common stock have been reserved for issuance under the Purchase Plan. Eligible employees who elect to participate in an offering under the Purchase Plan may have up to 15 percent of their earnings withheld, subject to certain limitations, to purchase shares of common stock pursuant to the Purchase Plan. The price of common stock purchased under the Purchase Plan is equal to 85 percent of the lower of the fair market value of the common stock at the commencement date of each offering period or the relevant purchase date. As of March 31, 2006, 63,034 shares of common stock had been issued under the Purchase Plan and 211,966 shares were available for future issuance.

Adoption of Statement of Financial Accounting Standards No. 123(R)

Prior to January 1, 2006, as permitted by Statement of Financial Accounting Standards (“SFAS”) No. 123, Accounting for Stock-Based Compensation (“SFAS No. 123”), the Company measured compensation expense for its employee stock-based compensation plans using the intrinsic value method under Accounting Principles Board (“APB”) Opinion No. 25 and provided pro forma disclosures of net income (loss) as if a fair value method had been applied in measuring compensation expense. Accordingly, compensation cost for stock awards was measured as the excess, if any, of the fair value of the Company’s common stock at the date of grant over the amount an employee must pay to acquire the stock. Effective January 1, 2006, the Company adopted the fair value recognition provisions of SFAS No. 123 (revised 2004), Share-Based Payment (“SFAS No. 123(R)”), which is a revision of SFAS No. 123, using the modified prospective transition method. Under that transition method, compensation cost recognized for the three months ended March 31, 2006 included (a) compensation cost for all share-based payments granted prior to but not yet vested as of January 1, 2006, based on the grant date fair value estimated in accordance with the original provisions of SFAS No. 123, excluding stock options granted prior to December 31, 2003, which were valued using the minimum value method, and for which the related compensation cost will continue to be determined using the intrinsic value method under APB Opinion No. 25, and (b) compensation cost for all share-based payments granted subsequent to January 1, 2006, based on the grant date fair value estimated in accordance with the provisions of SFAS No. 123(R). Results for prior periods have not been restated.

Unearned stock-based compensation related to stock options granted prior to December 31, 2003 is reflected as a separate component of stockholders’ equity in the Company’s balance sheet. Unearned stock-based compensation represents the difference between the exercise price of grants made to employees and the fair value of the Company’s common stock on the date of grant. The remaining balance of unearned stock-based compensation, totaling $368,000 and which related to stock options granted during the period January 1, 2004 to the closing of the Company’s initial public offering on June 2, 2004, was reclassified to additional paid-in capital upon the adoption of SFAS No. 123(R) on January 1, 2006.

As a result of adopting SFAS No. 123(R) on January 1, 2006, the Company’s net loss for the three months ended March 31, 2006 was approximately $400,000 higher than if it had continued to account for stock-based compensation under APB Opinion No. 25. Basic and diluted net loss for the three months ended March 31, 2006 would have been $0.37 per share had the Company not adopted SFAS No. 123(R), compared to reported basic and diluted net loss of $0.39 per share. The adoption of

 

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SFAS No. 123(R) also resulted in a cumulative benefit from accounting change of $51,000 which reflects the net cumulative impact of estimating future forfeitures for options granted subsequent to December 31, 2003 and outstanding at January 1, 2006, rather than recording forfeitures when they occur as previously permitted.

The value of each employee stock option and Purchase Plan right granted is estimated on the grant date under the fair value method using the Black-Scholes option pricing model. For options granted prior to January 1, 2006, the Company amortizes the fair value on an accelerated basis. For options granted after January 1, 2006, the Company amortizes the fair value on a straight-line basis. All options are amortized over the requisite service period of the awards, which are generally the vesting periods. The following assumptions were used to estimate the fair value of employee stock options:

 

     Three Months Ended
March 31,
 
     2006     2005  
     (unaudited)  

Expected volatility

   65 %   70 %

Risk-free interest rate

   5 %   4 %

Expected forfeiture rate

   7 %   0 %

Expected dividend yield

   0 %   0 %

Expected life of options in years

   5.3     5.0  

Expected Volatility. The Company completed its initial public offering on June 2, 2004, so there is limited trading history for its shares in the public markets. Therefore, the Company considers the expected and historic volatility of peer companies as well as its own historical volatility when determining the volatility factor. In considering peer companies, the Company considers characteristics such as industry, stage of development, size and financial leverage.

Risk-Free Interest Rate. The risk-free interest rate is based on the implied yield currently available on U.S. Treasury zero-coupon issues with a remaining term approximating the expected term of the option.

Expected Forfeiture Rate. The Company considers its pre-vesting forfeiture history, as well as the weighted average probabilities of forfeiture due to retirement, termination, death and disability based on the demographics of its option holders, to determine its expected forfeiture rate.

Expected Dividend Yield. The Company has never paid any dividends and currently has no plans to do so.

Expected Life of Options. The Company considers, among other factors, its historical exercise experience to date as well as the mean time remaining to full vesting of all outstanding options and the mean time remaining to end of the contractual term of all outstanding options.

The following assumptions were used to estimate fair value for the latest offering under the Purchase Plan that commenced December 1, 2005: expected volatility of 46 to 48 percent; risk-free interest rate of 4 percent; dividend yield of 0 percent; and expected life in years of 0.5 to 2.0.

The weighted average fair value of stock options granted in the three months ended March 31, 2006 and 2005 was $7.85 and $4.36, respectively. There were no Purchase Plan rights granted during the three months ended March 31, 2006. As of March 31, 2006, total unrecognized compensation cost related to stock options was approximately $5.4 million, and the weighted average period over which this cost is expected to be recognized is 1.6 years.

The following table illustrates the effect on net loss per share if the Company had applied the fair value recognition provisions of SFAS No. 123 to options granted under the Company’s stock plans for the three months ended March 31, 2005.

 

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For purposes of this pro forma disclosure, the value of options is estimated using the Black-Scholes option pricing model and amortized to expense over the options’ vesting periods on an accelerated basis.

 

     Three Months
Ended
March 31, 2005
 
     (unaudited)  

Net loss, as reported

   $ (5,589,000 )

Add: Stock-based employee compensation costs included in reported net loss

     360,000  

Deduct: Total stock-based employee compensation costs that would have been included in net loss if the fair value method had been applied

     (630,000 )
        

Pro forma net loss

   $ (5,859,000 )
        

Actual net loss per common share, basic and diluted

   $ (0.31 )
        

Pro forma net loss per common share, basic and diluted

   $ (0.33 )
        

Stock Option Activity

Stock option transactions during the three months ended March 31, 2006 are presented below:

 

     Number of
Shares
    Weighted
Average
Exercise
Price
   Weighted
Average
Remaining
Contractual
Term
   Aggregate
Intrinsic
Value

Outstanding at December 31, 2005

   2,238,647     $ 4.34      

Granted

   419,800     $ 13.15      

Exercised

   (59,435 )   $ 2.55      

Canceled/forfeited

   (2,938 )   $ 6.21      
                  

Outstanding at March 31, 2006

   2,596,074     $ 5.80    7.6    $ 26,425,000
                  

Exercisable at March 31, 2006

   1,513,558     $ 3.22    6.2    $ 19,367,000
                  

The aggregate intrinsic value of options outstanding and options exercisable as of March 31, 2006 is calculated as the difference between the exercise price of the underlying options and the market price of the Company’s common stock for the shares that had exercise prices that were lower than the $15.98 closing price of the Company’s common stock on March 31, 2006. The aggregate intrinsic value of options exercised in the three months ended March 31, 2006 was approximately $681,000, determined as of the date of exercise. The Company received approximately $152,000 in cash from options exercised in the three months ended March 31, 2006.

Stock-based awards issued to nonemployees are accounted for using a fair value method and are remeasured to fair value at each period end until the earlier of the date that performance by the nonemployee is complete or a performance commitment has been obtained. The fair value of each award is estimated using the Black-Scholes option pricing model with the following assumptions for the three months ended March 31, 2006: dividend yield of 0 percent; volatility of 72 percent; risk free interest rate of 5 percent and remaining contractual life of 7 to 10 years. For the three months ended March 31, 2005 the following assumptions were used: dividend yield of 0 percent; volatility of 100 percent; risk free interest rate of 4 percent; and remaining contractual life of 8 to 10 years. During the three months ended March 31, 2006 and 2005, in connection with the grant of stock options to non-employees, the Company recorded stock-based compensation of $279,000 and $11,000, respectively.

 

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4. Comprehensive Loss

For the three months ended March 31, 2006 and 2005, comprehensive loss consisted of the following:

 

     Three Months Ended
March 31,
 
     2006     2005  
     (unaudited)  

Net loss

   $ (9,467,000 )   $ (5,589,000 )

Unrealized gain (loss) on investment securities

     18,000       (32,000 )

Foreign currency translation loss

     (10,000 )     (16,000 )
                

Total comprehensive loss

   $ (9,459,000 )   $ (5,637,000 )
                

5. Segment Information

Management has determined that the Company operates in one business segment. All revenues for the three months ended March 31, 2006 and 2005 were generated in the United States. Information regarding long-lived assets by geographic area as of the dates indicated were as follows:

 

     March 31,
2006
   December 31
2005
     (unaudited)

United States

   $ 1,279,000    $ 1,285,000

Europe

     1,020,000      998,000
             

Total

   $ 2,299,000    $ 2,283,000
             

6. Stockholders’ Equity

On January 10, 2006, Sepracor Inc. purchased 813,393 shares of the Company’s common stock for $10 million at a per share price of approximately $12.29, which represented a 25 percent premium to the 30-day trailing average closing price. The Company recorded the aggregate premium amount of $1.1 million, which was computed based on the excess of the purchase price over the closing price of the Company’s common stock on January 10, 2006, as deferred revenue and the remaining purchase amount of $8.9 million as stockholders’ equity. The deferred revenue will be recognized as revenue as the related research activities are performed over the research term of the companies’ collaboration agreement.

7. Commitments and Contingencies

On August 24, 2005, a jury rendered a verdict against the Company and two of its executive officers in a civil action filed by a former employee for claims of sexual harassment and retaliation and awarded an aggregate of $7.9 million in compensatory and punitive damages. Although the Company has filed a notice of appeal, it has recorded an accrued loss from litigation totaling $8.9 million as of March 31, 2006. This amount represented the aggregate amount awarded for damages and $495,000 for plaintiff’s fees and costs plus $522,000 in accrued interest on these awards, including $227,000 of accrued interest that was recorded as a provision for loss from litigation during the three months ended March 31, 2006. The Company has employment practices liability insurance in the amount of $3 million, of which approximately $2.4 million remained available at March 31, 2006 to offset a portion of the compensatory damages as well as fees and expenses incurred in connection with this litigation. The anticipated insurance recovery is included in prepaid expenses, receivables and other current assets in the accompanying balance sheet. In connection with the appeal process, the Company has filed a bond with the court for an amount of $12,520,000, or approximately 150% of the total award. The bond is backed by a letter of credit in the amount of $12,520,000, which is turn is collateralized by restricted cash in an equal amount.

8. Subsequent Event

On May 3, 2006, the Company raised net proceeds of $55.6 million from the sale of 4,947,229 shares of its common stock in a public offering.

 

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

The following discussion and analysis of our consolidated financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes included in this quarterly report on Form 10-Q (this “Quarterly Report”) and the audited financial statements and notes thereto as of and for the year ended December 31, 2005 included with our annual report on Form 10-K (“Annual Report”) filed with the SEC. Past operating results are not necessarily indicative of results that may occur in future periods.

This Quarterly Report contains forward-looking statements. These forward-looking statements involve a number of risks and uncertainties. Such forward-looking statements include statements about our strategies, objectives, expectations, discoveries, collaborations, clinical trials, internal programs, and other statements that are not historical facts, including statements which may be preceded by the words “intends,” “may,” “will,” “plans,” “expects,” “anticipates,” “projects,” “predicts,” “estimates,” “aims,” “believes,” “hopes,” “potential” or similar words. For such statements, we claim the protection of the Private Securities Litigation Reform Act of 1995. Readers of this Quarterly Report are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. We undertake no obligation to update publicly or revise any forward-looking statements. Actual events or results may differ materially from our expectations. Important factors that could cause actual results to differ materially from those stated or implied by our forward-looking statements include, but are not limited to, the risk factors identified in our filings with the SEC, including this Quarterly Report.

Overview

Background

We are a biopharmaceutical company focused on the discovery, development and commercialization of small molecule drugs for the treatment of central nervous system disorders. We currently have five programs in clinical development and several additional programs in preclinical development and discovery stages. Our four proprietary Phase II-stage clinical programs are ACP-103 for treatment-induced dysfunctions in Parkinson’s disease, ACP-103 as an adjunctive therapy for schizophrenia, ACP-103 for sleep maintenance insomnia, and ACP-104 for the treatment of schizophrenia. We have retained worldwide commercialization rights for these programs. We also have a neuropathic pain program in Phase II clinical trials in collaboration with Allergan, Inc. All of the drug candidates in our product pipeline emanate from discoveries made using our proprietary drug discovery platform.

We have incurred substantial operating losses since our inception due in large part to expenditures for our research and development activities. At March 31, 2006, we had an accumulated deficit of $137.9 million. We expect our operating losses to increase for at least the next several years as we pursue the clinical development of our lead drug candidates and expand our discovery and development pipeline.

Recent Developments

In March 2006, we announced positive results from a multi-center Phase II trial of ACP-103 in patients with Parkinson’s disease suffering from treatment-induced psychosis. The trial met the primary endpoint, which was to demonstrate that administration of ACP-103 did not worsen the disease-related motoric function of these patients. In addition, administration of ACP-103 produced antipsychotic effects, a secondary endpoint of this trial, and was safe and well tolerated. We are also conducting an ongoing open-label extension study involving the extended use of ACP-103 in patients with Parkinson’s disease who completed this Phase II trial and may, in the opinion of the treating physician, benefit from continued treatment with ACP-103. Many of the eligible patients are participating in this extension study, including ten patients who have been treated with ACP-103 for over six months and three of these patients who have been treated with ACP-103 for over one year.

In April 2006, we announced positive results from a proof-of-concept clinical study to assess the effect of ACP-103 on deep, or slow wave, sleep in healthy older volunteers. The results demonstrated that ACP-103 induced a statistically significant increase in slow wave sleep that was dose-related. In addition, administration of ACP-103 had a positive impact on measures for sleep maintenance, including decreases in the number of awakenings after sleep onset and in the time awake after sleep onset. ACP-103 also did not alter latency to sleep onset and did not impair daytime functioning. ACP-103 was safe and well tolerated in the study subjects.

 

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Subject to discussions with the U.S. Food and Drug Administration, we intend to design our next trial in each of these two Phase II-stage programs to be sufficiently powered and to have the appropriate clinical endpoints, so that it may serve as one of the pivotal trials for that program. We intend to commence this next trial in each of these programs within the next 12 months.

Revenues

We have not generated any revenues from product sales to date, and we do not expect to generate revenues from product sales for at least the next several years, if at all. Our revenues to date have been generated substantially from research and milestone payments under our collaboration agreements. We have entered into three separate collaboration agreements with Allergan and one with Sepracor. We have also entered into a development agreement with The Stanley Medical Research Institute (“SMRI”) and smaller scale collaboration and license agreements with other parties. As of March 31, 2006, we had received an aggregate of $49.3 million in payments under these agreements, including research funding and related fees and upfront and milestone payments. We expect our revenues for the next several years to consist primarily of payments under our current agreements and any additional collaborations, including any upfront payments upon execution of new agreements, research funding throughout the research term of our agreements with these parties and milestone payments contingent upon achievement of agreed-upon objectives.

Pursuant to the terms of our January 2005 collaboration agreement with Sepracor, we had received $4.6 million in research funding as of March 31, 2006 and we are entitled to receive additional research funding through January 2008. In connection with this collaboration, Sepracor has purchased an aggregate of $20 million of our common stock in two $10 million tranches. In January 2005, Sepracor purchased the first $10 million of our common stock at a 40 percent premium to the 30-day trailing average closing price, resulting in a premium of $3.1 million. In January 2006, Sepracor completed the second $10 million purchase of our common stock at a 25 percent premium to the 30-day trailing average price at that time, resulting in a premium of $1.1 million. We are recognizing the premium from these stock purchases as revenue as the related research activities are performed over the research term. Pursuant to our collaboration with Sepracor, if certain conditions are met, we are also eligible to receive license fees and milestone payments as well as royalties on product sales, if any.

Pursuant to the terms of our March 2003 collaboration agreement with Allergan, we had received an aggregate of $12.2 million in payments as of March 31, 2006, consisting of upfront fees, and research funding and related fees. This collaboration originally provided for a three-year research term ending in late-March 2006, which was extended by the parties in February 2006 for two additional years through March 2008. We will receive additional research funding during this extended term. We may also receive milestone payments and royalties on product sales, if any, under each of our three collaboration agreements with Allergan. Pursuant to our development agreement with SMRI, we are entitled to receive up to $5 million in funding to support the development of
ACP-104, of which $3 million had been received as of March 31, 2006.

Each of our collaboration agreements is subject to early termination by the collaborator upon specified events, including if we breach the agreement or, in the case of one of our agreements with Allergan, if we have a change in control. Upon the conclusion of the research term under each agreement, our collaborator may terminate the agreement by notice.

Research and Development Expenses

Our research and development expenses consist primarily of salaries and related personnel expenses, fees paid to external service providers, laboratory supplies and costs for facilities and equipment. We charge all research and development expenses to operations as incurred. Our research and development activities are primarily focused on our most advanced clinical and preclinical programs. We are responsible for all costs incurred in the development of both ACP-103 and ACP-104, as well as the costs associated with our other internal programs. We are not responsible for, nor have we incurred, development expenses, including costs related to clinical trials, in the programs that we are pursuing under our collaboration agreements, including our clinical program for neuropathic pain and our preclinical development program for glaucoma, each of which we are pursuing in collaboration with Allergan.

 

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We use our internal research and development resources, including our employees and discovery infrastructure, across several projects and many of our costs are not attributable to a specific project but are directed to broadly applicable research activities. Accordingly, we do not report our internal research and development costs on a project basis. We use external service providers to manufacture our drug candidates to be used in clinical trials and for the majority of the services performed in connection with the preclinical and clinical development of our drug candidates. To the extent that costs associated with external service providers are not attributable to a specific project, they are included in other external costs. The following table summarizes our research and development expenses for the three months ended March 31, 2006 and 2005 (in thousands):

 

     Three Months
Ended
March 31,
     2006    2005
     (unaudited)

Costs of external service providers:

     

ACP-103

   $ 2,530    $ 891

ACP-104

     1,203      100

Other

     485      358
             

Subtotal

     4,218      1,349

Internal costs, excluding stock-based compensation

     5,349      4,767

Stock-based compensation

     559      211
             

Total research and development

   $ 10,126    $ 6,327
             

At this time, due to the risks inherent in the clinical trial process and given the early stage of development of our programs, we are unable to estimate with any certainty the costs we will incur in the continued development of our drug candidates for potential commercialization. Due to these same factors, we are unable to determine the anticipated completion dates for our current research and development programs. Clinical development timelines, probability of success, and development costs vary widely. While we are currently focused on advancing the clinical development of ACP-103 and ACP-104, we anticipate that we will make determinations as to which programs to pursue and how much funding to direct to each program on an ongoing basis in response to the scientific and clinical success of each drug candidate, as well as an ongoing assessment as to each drug candidate’s commercial potential. We cannot forecast with any degree of certainty which drug candidates will be subject to future collaborative or licensing arrangements, when such arrangements will be secured, if at all, and to what degree such arrangements would affect our development plans and capital requirements. As a result, we cannot be certain when and to what extent we will receive cash inflows from the commercialization of our drug candidates.

We expect our research and development expenses to be substantial and to increase as we continue the development of our clinical programs and expand our discovery and development pipeline. The lengthy process of completing clinical trials and seeking regulatory approval for our drug candidates requires the expenditure of substantial resources. Any failure by us or delay in completing clinical trials, or in obtaining regulatory approvals could cause our research and development expenses to increase and, in turn, have a material adverse effect on our results of operations.

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements. We have identified the accounting policies that we believe require application of management’s most subjective judgments, often requiring the need to make estimates about the effect of matters that are inherently uncertain and may change in subsequent periods. Our actual results may differ substantially from these estimates under different assumptions or conditions. While our significant accounting policies are described in more detail in the notes to consolidated financial statements included in this Quarterly Report and in our Annual Report, we believe that the following accounting policies require the application of significant judgments and estimates.

Revenue Recognition

We recognize revenues in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 104, Revenue Recognition. Arrangements with multiple elements are accounted for in accordance with Emerging Issues Task Force Issue No. 00-21, or EITF 00-21, Revenue Arrangements With Multiple Deliverables. We analyze our multiple element arrangements to determine whether the elements can be separated and accounted for individually as separate units of accounting in accordance with EITF 00-21. Our revenues are primarily related to our collaboration agreements, and such agreements may provide for various types of payments to us, including upfront payments, research funding and related fees during the term of the agreement, milestone payments based on the achievement of established development objectives, licensing fees, and royalties on future product sales.

Upfront, non-refundable payments under collaboration agreements are recorded as deferred revenue once received and recognized ratably over the term of the agreement. Non-refundable payments for research funding are generally recognized as revenues ratably over the period as the related research activities are performed. Revenues from non-refundable milestones

 

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are recognized when the earnings process is complete and the payment is reasonably assured. Non-refundable milestone payments related to arrangements under which we have continuing performance obligations are recognized as revenue upon achievement of the milestone, provided that (i) the milestone event is substantive and its achievability was not reasonably assured at the inception of the agreement and (ii) the amount of the milestone payment is reasonable in relation to the effort expended or the risk associated with the triggering event. Revenues from non-refundable license fees are recognized upon receipt of the payment if the license has stand-alone value, we do not have ongoing involvement or obligations, and the fair value of any undelivered items can be determined.

Accrued Expenses

We are required to estimate accrued expenses as part of our process of preparing financial statements. Examples of areas in which subjective judgments may be required include costs associated with services provided by contract organizations for preclinical development, manufacturing of clinical materials, and clinical trials. We accrue for costs incurred as the services are being provided by monitoring the status of the trials or services provided, and the invoices received from our external service providers. In the case of clinical trials, a portion of the estimated cost normally relates to the projected cost to treat a patient in our trials and we recognize this cost over the estimated term of the study based on the number of patients enrolled in the trial on an ongoing basis, beginning with patient enrollment. As actual costs become known to us, we adjust our accruals. To date, our estimates have not differed significantly from the actual costs incurred. However, we expect to expand the level of our clinical trials and related services in the future. As a result, we anticipate that our estimated accruals for clinical services will be more material to our operations in future periods. Subsequent changes in estimates may result in a material change in our accrual, which could also materially affect our balance sheet and results of operations.

Stock-based Compensation

Prior to January 1, 2006, as permitted by Statement of Financial Accounting Standards (“SFAS”) No. 123, Accounting for Stock-Based Compensation (“SFAS No. 123”), we measured compensation expense for our employee stock-based compensation plans using the intrinsic value method under Accounting Principles Board (“APB”) Opinion No. 25 and provided pro forma disclosures of net income (loss) as if a fair value method had been applied in measuring compensation expense. Accordingly, compensation cost for stock awards was measured as the excess, if any, of the fair value of our common stock at the date of grant over the amount an employee must pay to acquire the stock. Effective January 1, 2006, we adopted the fair value recognition provisions of SFAS No. 123 (revised 2004), Share-Based Payment (“SFAS No. 123(R)”), which is a revision of SFAS No. 123, using the modified prospective transition method. Under that transition method, compensation cost recognized for the three months ended March 31, 2006 included (a) compensation cost for all share-based payments granted prior to, but not yet vested as of January 1, 2006, based on the grant date fair value estimated in accordance with the original provisions of SFAS No. 123, excluding stock options granted prior to December 31, 2003, which were valued using the minimum value method, and for which the related compensation cost will continue to be determined by using the intrinsic value method under APB Opinion No. 25, and (b) compensation cost for all share-based payments granted subsequent to January 1, 2006, based on the grant date fair value estimated in accordance with the provisions of SFAS No. 123(R). Results for prior periods have not been restated.

Unearned stock-based compensation related to stock options granted prior to December 31, 2003 is reflected as a separate component of stockholders’ equity in our balance sheet. Unearned stock-based compensation represents the difference between the exercise price of grants made to employees and the fair value of the Company’s common stock on the date of grant. The balance of unearned stock-based compensation, totaling $368,000 and which related to stock options granted during the period January 1, 2004 to the closing of our initial public offering on June 2, 2004, was reclassified to additional paid-in capital upon the adoption of SFAS No. 123(R) on January 1, 2006.

As a result of adopting SFAS No. 123(R) on January 1, 2006, our net loss for the three months ended March 31, 2006 was approximately $400,000 higher than if we had continued to account for stock-based compensation under APB Opinion No. 25. Basic and diluted net loss per share for the three months ended March 31, 2006 would have been $0.37 had we not adopted SFAS No. 123(R), compared to reported basic and diluted net loss per share of $0.39. The adoption of SFAS No. 123(R) also resulted in a cumulative benefit from accounting change of $51,000 which reflects the net cumulative impact of estimating future forfeitures for options granted subsequent to December 31, 2003 and outstanding at January 1, 2006, rather than recording forfeitures when they occur as previously permitted.

The value of each employee stock option and Purchase Plan right granted is estimated on the grant date under the fair value method using the Black-Scholes option pricing model. For options granted prior to January 1, 2006, we amortize the fair value on an accelerated basis. For options granted after January 1, 2006, we amortize the fair value on a straight-line basis. All options are amortized over the requisite service period of the awards, which is generally the vesting period. As of

 

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March 31, 2006, total unrecognized compensation cost related to stock options was approximately $5.4 million, and the weighted average period over which it is expected to be recognized is 1.6 years.

Results of Operations

Fluctuations in Operating Results

Our results of operations have fluctuated significantly from period to period in the past and are likely to continue to do so in the future. We anticipate that our quarterly and annual results of operations will be impacted for the foreseeable future by several factors, including the timing and amount of payments received pursuant to our current and future collaborations, and the progress and timing of expenditures related to our discovery and development efforts. Due to these fluctuations, we believe that the period-to-period comparisons of our operating results are not a good indication of our future performance.

Comparison of the Three Months Ended March 31, 2006 and 2005

Revenues

Revenues totaled $2.5 million for the three months ended March 31, 2006 compared to $2.3 million for the three months ended March 31, 2005. This increase was primarily due to increased revenues earned under our collaborations with Sepracor and Allergan. Revenues from our collaboration agreement with Sepracor, which commenced in January 2005, increased to $931,000 for the three months ended March 31, 2006 from $820,000 for the three months ended March 31, 2005. Revenues from our collaboration agreements with Allergan totaled $1.1 million and $1.0 million for the three months ended March 31, 2006 and 2005, respectively. Our March 2003 collaboration with Allergan originally provided for a three year research term ending in late-March 2006, which was extended by the parties in February 2006 for two additional years through March 2008. While we will receive additional research funding during this extended term, we currently anticipate lower revenues and related research activities under this collaboration during the extension, including the remaining quarters of 2006.

Research and Development Expenses

Research and development expenses totaled $10.1 million for the three months ended March 31, 2006, including $559,000 in stock-based compensation, compared to $6.3 million for the three months ended March 31, 2005, including $211,000 in stock-based compensation, primarily due to increased clinical development expenses associated with our proprietary Phase II-stage programs and expansion of our research and development organization. This increase in expenses was primarily due to $2.9 million in increased fees paid to external service providers, and increased costs associated with our internal research and development organization, including $273,000 in increased facility costs and $197,000 in increased salaries and related personnel costs. External service costs totaled $4.2 million, or 42 percent of our research and development expenses, for the three months ended March 31, 2006, compared to $1.3 million, or 21 percent of our research and development expenses, for the comparable period in 2005. We expect that our research and development costs will continue to increase in future periods as we continue to pursue the clinical development of our lead drug candidates and expand our discovery and development pipeline.

General and Administrative Expenses

General and administrative expenses totaled $2.3 million for the three months ended March 31, 2006, including $341,000 in stock-based compensation, compared to $1.8 million for the three months ended March 31, 2005, including $160,000 in stock-based compensation. General and administrative expenses consist primarily of salaries and other costs for employees serving in executive, finance, business development and business operations functions, as well as professional fees associated with legal and accounting services. The increase in general and administrative expenses was primarily due to $157,000 in increased professional fees and $112,000 in increased salaries and related personnel costs. We anticipate increases in general and administrative expenses in future periods as we support the future growth of our business and incur additional costs associated with operating as a public company and costs related to litigation.

Provision for Loss From Litigation

During the three months ended March 31, 2006, the Company recorded a provision for loss from litigation of $227,000, which amount represented accrued interest on the awarded damages and plaintiff fees and costs related to the civil action filed by a former employee.

 

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Interest Income

Interest income increased to $625,000 for the three months ended March 31, 2006 from $261,000 for the three months ended March 31, 2005. The increase in interest income was primarily due to higher average levels of cash and investment securities and increased yields on our investment portfolio.

Interest Expense

Interest expense decreased to $43,000 for the three months ended March 31, 2006 from $50,000 for the three months ended March 31, 2005. The decrease in interest expense was primarily due to repayments under our loan agreements.

Liquidity and Capital Resources

Since inception, we have funded our operations primarily through sales of our equity securities, payments under our collaboration agreements, debt financings, and interest income. As of March 31, 2006, we had received $165.2 million in net proceeds from sales of our equity securities, including $6.9 million in debt we had retired through the issuance of our common stock, $49.3 million in payments from collaboration agreements, $20.0 million in debt financing, and $8.6 million in interest income.

At March 31, 2006, we had approximately $56.2 million in cash, cash equivalents, investment securities, and restricted cash compared to $55.5 million at December 31, 2005. After March 31, 2006, we received an additional $55.6 million in net proceeds from the sale of approximately 4.9 million shares of our common stock in a public offering, which closed on May 3, 2006. We have invested a substantial portion of our available cash in investment securities consisting of high quality, marketable debt instruments of corporations, financial institutions, and government agencies. We have adopted an investment policy and established guidelines relating to diversification and maturities of our investments to preserve principal and maintain liquidity.

Net cash used in operating activities increased to $8.0 million for the three months ended March 31, 2006 from $268,000 for the three months ended March 31, 2005. This increase was primarily due to an increase in our net loss and a smaller increase in deferred revenue from our collaboration agreements during the three months ended March 31,2006 relative to the comparable period of 2005, partially offset by increases in accrued expenses and other long-term liabilities. Deferred revenue increased $595,000 during the three months ended March 31, 2006 compared to an increase of $5.5 million during the three months ended March 31, 2005. The larger increase in deferred revenue during the three months ended March 31, 2005 was primarily attributable to payments from our collaboration with Sepracor, including the premium amount of $3.1 million resulting from Sepracor’s first purchase of our common stock.

Net cash used in investing activities reflects purchases and maturities of investment securities and our purchases of property and equipment. From inception through March 31, 2006, we had purchased $11.3 million in property and equipment, the majority of which we have funded through equipment financing agreements and other debt facilities.

Net cash provided by financing activities totaled $8.9 million for the three months ended March 31, 2006 compared to $6.1 million for the three months ended March 31, 2005. The net cash provided by financing activities in the three months ended March 31, 2006 was primarily due to $8.9 million from the second purchase of our common stock by Sepracor, which amount did not include the $1.1 million premium received in connection with this stock purchase that was included in deferred revenue in operating activities, and proceeds from stock option exercises, partially offset by repayments of our long-term debt. The net cash provided by financing activities in the three months ended March 31, 2005 was primarily due to $6.9 million from the first purchase of our common stock by Sepracor, which did not include the $3.1 million premium received in connection with this stock purchase that was included in deferred revenue in operating activities, offset by repayments of our long-term debt.

We have entered into equipment financing agreements from time to time, which we have utilized to fund the majority of our property and equipment purchases. The agreements contain interest rates ranging from 7.93 to 9.55 percent per annum. At March 31, 2006, we had $1.5 million in outstanding borrowings under these agreements, which are secured by the related equipment. We were in compliance with required financial covenants and conditions at March 31, 2006.

The following table summarizes our long-term contractual obligations, including interest, at March 31, 2006:

 

     Total    Less than
1 Year
   1-3 Years    4-5 Years    After
5 Years

Operating leases

   $ 15,655,000    $ 1,953,000    $ 5,731,000    $ 3,603,000    $ 4,368,000

Long-term debt

     1,696,000      905,000      788,000      3,000      —  
                                  

Total

   $ 17,351,000    $ 2,858,000    $ 6,519,000    $ 3,606,000    $ 4,368,000
                                  

 

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We have also entered into agreements with contract research organizations and other external service providers for services in connection with the development of our drug candidates. We were contractually obligated for up to approximately $11.0 million of future services under these agreements as of March 31, 2006. The nature of the work being conducted under our agreements with contract research organizations is such that, in most cases, the services may be stopped with short notice. In such event, we would not be liable for the full amount of the contract. Our actual contractual obligations may vary depending upon several factors, including the results of the underlying studies. Under our development agreement with SMRI, we are entitled to receive up to $5 million in funding to support the further development of ACP-104. Assuming the successful development and commercialization of this drug candidate, the Company is required to pay to SMRI royalties on product sales up to a specified level.

We have consumed substantial amounts of capital since our inception and expect to use between $38 million and $42 million of our cash resources to fund operations during 2006. Although we believe our existing cash resources and the anticipated payments from our existing collaborators will be sufficient to fund our anticipated cash requirements through at least mid-2008, we will require significant additional financing in the future to fund our operations. As of March 31, 2006, we had $12.5 million of restricted cash as a result of posting a bond in connection with the appeal of the awards rendered against us in 2005, which represented approximately 150% of the total award amount. This restricted cash is reflected as part of our cash resources but, if we do not prevail in overturning the verdict, we may not be able to use some or all of that restricted cash.

Our future capital requirements will depend on, and could increase significantly as a result of, many factors, including:

 

    progress in, and the costs of, our preclinical studies and clinical trials and other research and development programs;

 

    the scope, prioritization and number of research and development programs;

 

    the ability of our collaborators and us to reach the milestones, and other events or developments, under our collaboration agreements;

 

    the costs involved in filing, prosecuting, enforcing and defending patent claims and other intellectual property rights;

 

    the costs of securing manufacturing arrangements for clinical or commercial production of drug candidates;

 

    the costs of establishing, or contracting for, sales and marketing capabilities if we obtain regulatory clearances to market our drug candidates; and

 

    the costs associated with litigation.

Until we can generate significant continuing revenues, we expect to satisfy our future cash needs through strategic collaborations, private or public sales of our securities, debt financings, or by licensing all or a portion of our drug candidates or technology.

 

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

We invest our excess cash in investment-grade, interest-bearing securities. The primary objective of our investment activities is to preserve principal while at the same time maximizing yields without significantly increasing risk. To achieve this objective, we invest in highly liquid and high quality marketable debt instruments of corporations, financial institutions, and government agencies with maturities of less than two years. If a 10 percent change in interest rates were to have occurred on March 31, 2006, this change would not have had a material effect on the fair value of our investment portfolio as of that date.

Foreign Currency Risk

We have wholly owned subsidiaries in Sweden and Denmark, which expose us to foreign exchange risk. The functional currency of our subsidiary in Sweden is the Swedish kroner and the functional currency of our subsidiary in Denmark is the Danish kroner. Accordingly, all assets and liabilities of our subsidiaries are translated to U.S. dollars based on the applicable exchange rate on the balance sheet date. Expense components are translated to U.S. dollars at weighted average exchange rates in effect during the period. Gains and losses resulting from foreign currency translation are included as a component of our stockholders’ equity. Other foreign currency transaction gains and losses are included in our results of operations and, to date, have not been significant. We have not hedged exposures denominated in foreign currencies or any other derivative financial instrument.

 

ITEM 4. CONTROLS AND PROCEDURES

Prior to the filing of this Quarterly Report, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of our disclosure controls and procedures (as defined in Rules 13a - 15(e) or 15d -15(e) of the Securities Exchange Act of 1934, as amended) as of the end of the period covered by this Quarterly Report. Disclosure controls and procedures are designed to ensure that information required to be disclosed in our periodic reports filed or submitted under the 1934 Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Based upon that evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this Quarterly Report.

An evaluation was also performed under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of any change in our internal control over financial reporting that occurred during our last fiscal quarter and that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. That evaluation did not identify any change in our internal control over financial reporting that occurred during our latest fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Our management, including our Chief Executive Officer and our Chief Financial Officer, does not expect that our disclosure controls will prevent all errors or potential fraud. A control system, no matter how well conceived and operated, can provide only reasonable and not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their cost. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within our company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons or by collusion of two or more people. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, control may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

 

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PART II. OTHER INFORMATION

 

Item 1A. Risk Factors

You should consider carefully the following information about the risks described below, together with the other information contained in this Quarterly Report and in our other public filings in evaluating our business. If any of the following risks actually occurs, our business, financial condition, results of operations and future growth prospects would likely be materially and adversely affected. In these circumstances, the market price of our common stock would likely decline.

Risks Related to Our Business

We expect our net losses to continue for at least several years and are unable to predict the extent of future losses or when we will become profitable, if ever.

We have experienced significant net losses since our inception. As of March 31, 2006, we had an accumulated deficit of approximately $137.9 million. We expect our annual net losses to increase over the next several years as we expand our research and development activities, incur significant preclinical and clinical development costs, and enhance our infrastructure.

We have not received, and do not expect to receive for at least the next several years, any revenues from the commercialization of our drug candidates. Substantially all of our revenues for the three months ended March 31, 2006 were from our agreements with Allergan, Sepracor, and SMRI. We anticipate that collaborations with pharmaceutical companies will continue to be our primary source of revenues for the next several years, which provide us with research funding and potential milestone payments and royalties. We cannot be certain that the milestones required to trigger payments under our existing collaborations will be reached or that we will secure additional collaboration agreements. To obtain revenues from our drug candidates, we must succeed, either alone or with others, in developing, obtaining regulatory approval for, and manufacturing and marketing drugs with significant market potential. We may never succeed in these activities, and may never generate revenues that are significant enough to achieve profitability.

Our most advanced drug candidates are in clinical trials, which are long, expensive and unpredictable, and there is a high risk of failure.

Preclinical testing and clinical trials are long, expensive and unpredictable processes that can be subject to delays. It may take several years to complete the preclinical testing and clinical development necessary to commercialize a drug, and delays or failure can occur at any stage. Interim results of clinical trials do not necessarily predict final results, and success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful. A number of companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in advanced clinical trials even after promising results in earlier trials.

All of our drug candidates are at an early stage of development and the historical rate of failures for drug candidates is extremely high. Our four internal Phase II-stage clinical programs are ACP-103 for treatment-induced dysfunctions in Parkinson’s disease, ACP-103 as an adjunctive therapy for schizophrenia, ACP-103 for sleep maintenance insomnia, and ACP-104 for the treatment of schizophrenia. We also have a neuropathic pain program in Phase II clinical trials in collaboration with Allergan.

In connection with clinical trials, we face risks that:

 

    a drug candidate may not prove to be efficacious;

 

    patients may die or suffer other adverse effects for reasons that may or may not be related to the drug candidate being tested;

 

    the results may not confirm the positive results of earlier trials; and

 

    the results may not meet the level of statistical significance required by the U.S. Food and Drug Administration, or FDA, or other regulatory agencies.

If we do not successfully complete preclinical and clinical development, we will be unable to market and sell products derived from our drug candidates and to generate product revenues. Even if we do successfully complete Phase I and Phase II clinical trials, those results are not necessarily predictive of results of additional trials needed before a new drug application, or NDA, may be submitted to the FDA. Of the large number of drugs in development, only a small percentage result in the submission of an NDA to the FDA and even fewer are approved for commercialization.

 

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Delays, suspensions and terminations in our clinical trials could result in increased costs to us and delay our ability to generate product revenues.

The commencement of clinical trials can be delayed for a variety of reasons, including delays in:

 

    demonstrating sufficient safety and efficacy to obtain regulatory approval to commence a clinical trial;

 

    reaching agreement on acceptable terms with prospective contract research organizations and clinical trial sites;

 

    manufacturing sufficient quantities of a drug candidate;

 

    obtaining approval of an Investigational New Drug Application, or IND, from the FDA;

 

    obtaining institutional review board approval to conduct a clinical trial at a prospective clinical trial site; and

 

    patient enrollment, which is a function of many factors, including the size of the patient population, the nature of the protocol, the proximity of patients to clinical trial sites, the availability of effective treatments for the relevant disease and the eligibility criteria for the clinical trial.

Once a clinical trial has begun, it may be delayed, suspended or terminated due to a number of factors, including:

 

    ongoing discussions with regulatory authorities regarding the scope or design of our clinical trials or requests by them for supplemental information with respect to our clinical trial results;

 

    failure to conduct clinical trials in accordance with regulatory requirements;

 

    lower than anticipated retention rate of patients in clinical trials;

 

    serious adverse events or side effects experienced by participants; and

 

    insufficient supply or deficient quality of drug candidates or other materials necessary for the conduct of our clinical trials.

Many of these factors may also ultimately lead to denial of regulatory approval of a current or potential drug candidate. If we experience delays, suspensions or terminations in our clinical trials, the commercial prospects for that drug candidates will be harmed, and our ability to generate product revenues will be delayed.

If we fail to obtain the capital necessary to fund our operations, we will be unable to successfully develop products.

We have consumed substantial amounts of capital since our inception. For the year ended December 31, 2005, we used $20.3 million in net cash to fund our operating activities and additional cash for purchases of property and equipment and repayment of long-term debt. Our cash, investment securities, and restricted cash totaled approximately $56.2 million at March 31, 2006, which amount did not include $55.6 million we received in May 2006 from the sale of shares of our common stock in a registered public offering. Although we believe our existing cash resources and anticipated payments from our existing collaborators will be sufficient to fund our cash requirements through at least mid-2008, we will require significant additional financing in the future to continue to fund our operations. Our future capital requirements will depend on, and could increase significantly as a result of, many factors including:

 

    progress in, and the costs of, our preclinical studies and clinical trials and other research and development programs;

 

    the scope, prioritization and number of our research and development programs;

 

    the ability of our collaborators and us to reach the milestones, and other events or developments, triggering payments under our collaboration agreements or to otherwise make payments under these agreements;

 

    the costs involved in filing, prosecuting, enforcing and defending patent claims and other intellectual property rights;

 

    the costs of securing manufacturing arrangements for clinical or commercial production;

 

    the costs of establishing or contracting for sales and marketing capabilities if we obtain regulatory clearances to market our drug candidates; and

 

    the costs associated with litigation.

Until we can generate significant continuing revenues, we expect to satisfy our future cash needs through strategic collaborations, private or public sales of our securities, debt financings, or by licensing all or a portion of our drug candidates or technology. We cannot be certain that additional funding will be available to us on acceptable terms, if at all. If funds are not available, we may be required to delay, reduce the scope of, or eliminate one or more of our research or development programs or our commercialization efforts. Additional funding may significantly dilute existing stockholders.

 

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We depend on collaborations with third parties to develop and commercialize selected drug candidates and to provide substantially all of our revenues.

A key aspect of our strategy is to selectively enter into collaborations with third parties. We currently rely, and will continue to rely, on our collaborators for financial resources and for development, regulatory, and commercialization expertise for selected drug candidates. Substantially all of our revenues for the year ended December 31, 2005 were from our agreements with Allergan, Sepracor, and SMRI. We expect that nearly all of our revenues for the foreseeable future will be generated by collaborations, although there is no guarantee that revenues from our collaborations will continue at current or past levels.

Our collaborators may fail to develop or effectively commercialize products using our drug candidates or technologies because they:

 

    do not have sufficient resources or decide not to devote the necessary resources due to internal constraints such as limited cash or human resources;

 

    decide to pursue a competitive product developed outside of the collaboration; or

 

    cannot obtain the necessary regulatory approvals.

The continuation of our collaborations is dependent on our collaborators’ periodic renewal of the governing agreements. Allergan and Sepracor can terminate our existing collaborations before the full term of these collaborations under specific circumstances, including in some cases the right to terminate upon notice. We may not be able to renew these collaborations on acceptable terms, if at all. We also face competition in our search for new collaborators.

If conflicts arise with our collaborators, they may act in their self interests, which may be adverse to our interests.

Conflicts may arise in our collaborations due to one or more of the following:

 

    disputes with respect to payments that we believe are due under the applicable agreements;

 

    disagreements with respect to ownership of intellectual property rights;

 

    unwillingness on the part of a collaborator to keep us informed regarding the progress of its development and commercialization activities, or to permit public disclosure of these activities;

 

    delay of a collaborator’s development or commercialization efforts with respect to our drug candidates; or

 

    termination or non-renewal of the collaboration.

Conflicts arising with our collaborators could harm our reputation, result in a loss of revenues, reduce our cash position, and cause a decline in our stock price.

In addition, in each of our collaborations, we generally have agreed not to conduct independently, or with any third party, any research that is directly competitive with the research conducted under our collaborations. Our collaborations may have the effect of limiting the areas of research that we may pursue, either alone or with others. Our collaborators, however, may develop, either alone or with others, products in related fields that are competitive with the products or potential products that are the subject of these collaborations.

We have collaborations with Allergan for the development of drug candidates related to neuropathic pain and opthalmic diseases, including glaucoma. Allergan currently markets therapeutic products to treat glaucoma and is engaged in other research programs related to glaucoma and other ophthalmic products that are independent from our development program in this therapeutic area. Allergan is also pursuing other research programs related to pain management that are independent from our collaboration in this therapeutic area. Our collaboration with Sepracor is targeted toward the development of new drug candidates to treat central nervous system disorders. Sepracor currently is engaged in other research programs related to this field that are independent from our collaboration project in this therapeutic area. In addition, our collaboration with Sepracor includes an option to pursue a combination drug to treat sleep disorders. Sepracor currently markets a therapeutic product to treat sleep disorders and is engaged in other research programs related to this field that are independent from our development program in this therapeutic area. Competing products, either developed by our collaborators or to which our collaborators have rights, may result in the allocation of resources by our competitors to competing products and their withdrawal of support for our drug candidates or may otherwise result in lower demand for our potential products.

We rely on third parties to conduct our clinical trials and perform data collection and analysis, which may result in costs and delays that prevent us from successfully commercializing drug candidates.

Although we design and manage our current preclinical studies and clinical trials, we currently do not have the ability to conduct clinical trials for our drug candidates. In addition to our collaborators, we rely on contract research organizations,

 

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medical institutions, clinical investigators, and contract laboratories to perform data collection and analysis and other aspects of our clinical trials. In addition, we also rely on third parties to assist with our preclinical studies, including studies regarding biological activity, safety, absorption, metabolism, and excretion of drug candidates.

Our preclinical activities or clinical trials may be delayed, suspended, or terminated if:

 

    these third parties do not successfully carry out their contractual duties or fail to meet regulatory obligations or expected deadlines;

 

    these third parties need to be replaced; or

 

    the quality or accuracy of the data obtained by these third parties is compromised due to their failure to adhere to our clinical protocols or regulatory requirements or for other reasons.

Failure to perform by these third parties may increase our development costs, delay our ability to obtain regulatory approval, and delay or prevent the commercialization of our drug candidates. We currently use several contract research organizations to perform services for our preclinical studies and clinical trials. While we believe that there are numerous alternative sources to provide these services, in the event that we seek such alternative sources, we may not be able to enter into replacement arrangements without delays or additional expenditures.

Even if we or our collaborators successfully complete the clinical trials of drug candidates, the drug candidates may fail for other reasons.

Even if we or our collaborators successfully complete the clinical trials of drug candidates, the drug candidates may fail for other reasons, including the possibility that the drug candidates will:

 

    fail to receive the regulatory clearances required to market them as drugs;

 

    be subject to proprietary rights held by others requiring the negotiation of a license agreement prior to marketing;

 

    be difficult or expensive to manufacture on a commercial scale;

 

    have adverse side effects that make their use less desirable; or

 

    fail to compete with drug candidates or other treatments commercialized by competitors.

Our drug candidates may not gain acceptance among physicians, patients, and the medical community, thereby limiting our potential to generate revenues.

Even if our drug candidates are approved for commercial sale by the FDA or other regulatory authorities, the degree of market acceptance of any approved drug candidate by physicians, healthcare professionals and third-party payors, and our profitability and growth will depend on a number of factors, including:

 

    our ability to provide acceptable evidence of safety and efficacy;

 

    relative convenience and ease of administration;

 

    the prevalence and severity of any adverse side effects;

 

    availability of alternative treatments;

 

    pricing and cost effectiveness, which may be subject to regulatory control;

 

    effectiveness of our or our collaborators’ sales and marketing strategy; and

 

    our ability to obtain sufficient third-party insurance coverage or reimbursement.

If any drug candidate that we discover and develop does not provide a treatment regimen that is as beneficial as the current standard of care or otherwise does not provide patient benefit, that product will not achieve market acceptance and we will not generate sufficient revenues to achieve or maintain profitability.

We do not know whether one of our drug candidates, ACP-104, will have the same adverse effects as clozapine, a currently available therapy.

One of our drug candidates under development is ACP-104 for the treatment of schizophrenia. ACP-104 is formed in the body from clozapine, a generic drug that is currently approved as a “second-line” therapy for schizophrenia in the United States. This means that clozapine will only be prescribed to a patient after a doctor determines that the patient has failed to progress under a “first-line” therapy consisting of antipsychotic drugs. Clozapine is associated with the occurrence of a rare and potentially fatal blood disorder leading to a complete loss of white blood cells, known as agranulocytosis, in approximately one percent of patients treated with clozapine. As a result, patients being treated with clozapine are subject to weekly blood monitoring for the first six months of treatment followed by twice monthly monitoring thereafter. In addition, one of the other side effects of clozapine is the occurrence of seizures, which is found in approximately five percent of users.

 

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ACP-104 may have the same adverse effects of clozapine or other significant adverse effects and, if successfully developed, may also only be approved as a “second-line” therapy. These factors could substantially limit the commercial potential of ACP-104 and may substantially restrict its potential market and our ability to generate revenues from it.

If we are unable to attract, retain, and motivate key management and scientific staff, our drug development programs and our research and discovery efforts may be delayed and we may be unable to successfully develop or commercialize our drug candidates.

Our success depends on our ability to attract, retain, and motivate highly qualified management and scientific personnel. In particular, our drug discovery and development programs depend on our ability to attract and retain highly skilled chemists, biologists, pharmacologists, and development personnel, especially in the fields of central nervous system disorders, including neuropsychiatric and related disorders. We will need to hire additional personnel as we continue to expand our clinical development and other research and development activities. We face competition for experienced scientists and other technical personnel from numerous companies and academic and other research institutions. Competition for qualified personnel is particularly intense in the San Diego, California area. If we are unable to attract and retain the necessary personnel, this will significantly impede the achievement of our research and development objectives and our ability to meet the demands of our collaborators in a timely fashion.

All of our U.S. employees are “at will” employees, which means that any employee may quit at any time and we may terminate any employee at any time. We do not carry “key person” insurance covering members of senior management.

We do not know whether our drug discovery platform will lead to the discovery or development of commercially viable drug candidates.

Our drug discovery platform uses new and unproven methods to identify and develop drug candidates. We have never successfully completed clinical development of any of our drug candidates, and there are no drugs on the market that have been discovered using our drug discovery platform.

Much of our research focuses on small molecule drugs for the treatment of central nervous system disorders. Due to our limited resources, we may have to forego potential opportunities with respect to discovering drug candidates to treat diseases or conditions in other therapeutic areas. If we are not able to use our technologies to discover and develop drug candidates that can be commercialized, we may not achieve profitability. In the future, we may find it necessary to license the technology of others or acquire additional drug candidates to augment the results of our internal discovery activities. If we are unable to identify new drug candidates using our drug discovery platform, we may be unable to establish or maintain a clinical development pipeline or generate product revenues.

We may not be able to continue or fully exploit our collaborations with outside scientific and clinical advisors, which could impair the progress of our clinical trials and our research and development efforts.

We work with scientific and clinical advisors at academic and other institutions who are experts in the field of central nervous system disorders. They assist us in our research and development efforts and advise us with respect to our clinical trials. These advisors are not our employees and may have other commitments that would limit their future availability to us. Although our scientific and clinical advisors generally agree not to engage in competing work, if a conflict of interest arises between their work for us and their work for another entity, we may lose their services, which may impair our reputation in the industry and delay the development or commercialization of our drug candidates.

We will need to increase the size of our organization, and we may encounter difficulties managing our growth, which could adversely affect our results of operations.

We will need to expand and effectively manage our operations and facilities in order to advance our drug development programs, achieve milestones under our collaboration agreements, facilitate additional collaborations, and pursue other development activities. It is possible that our human resources and infrastructure may be inadequate to support our future growth. To manage our growth, we will be required to continue to improve our operational, financial and management controls, and reporting systems and procedures in at least two countries, and be required to attract and retain sufficient numbers of talented employees in at least two countries. In addition, we may have to develop internal sales, marketing, and distribution capabilities if we decide to market any drug that we may successfully develop. We may not successfully manage the expansion of our operations and, accordingly, may not achieve our research, development, and commercialization goals.

We face financial and administrative challenges in coordinating the operations of our European activities with our activities in California, which could have an adverse impact on our operations.

Our subsidiary in Malmö, Sweden, ACADIA Pharmaceuticals AB, employs approximately 31 percent of our total personnel and is engaged in research and development activities, with primary responsibility for combinatorial, medicinal

 

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and analytical chemistry. Our principal executive offices, however, are located in San Diego. The additional administrative expense required to follow and coordinate activities in both Europe and California could divert management resources from other important endeavors and, in turn, delay our development and commercialization efforts. In addition, currency fluctuations involving our Swedish operations may cause foreign currency translation gains and losses. These exchange-rate fluctuations could have a negative effect on our operations. We do not engage in currency hedging transactions.

We expect that our results of operations will fluctuate, which may make it difficult to predict our future performance from period to period.

Our quarterly operating results have fluctuated in the past and are likely to do so in the future. Some of the factors that could cause our operating results to fluctuate from period to period include:

 

    the status of development of ACP-103 and ACP-104 and the preclinical and clinical development of our other drug candidates, including compounds being developed under our collaborations;

 

    whether we generate revenues by achieving specified research or commercialization milestones under any agreements or otherwise receive potential payments under these agreements;

 

    the incurrence of preclinical or clinical expenses that could fluctuate significantly from period to period;

 

    the initiation, termination, or reduction in the scope of our collaborations or any disputes regarding these collaborations;

 

    the timing of our satisfaction of applicable regulatory requirements;

 

    the rate of expansion of our clinical development and other internal research and development efforts;

 

    the effect of competing technologies and products and market developments;

 

    the costs associated with litigation; and

 

    general and industry-specific economic conditions.

We believe that quarterly comparisons of our financial results are not necessarily meaningful and should not be relied upon as indications of our future performance.

Relying on third-party manufacturers may result in delays in our clinical trials and product introductions.

We have no manufacturing facilities and have no experience in the manufacturing of drugs or in designing drug-manufacturing processes. We have contracted with third-party manufacturers to produce, in collaboration with us, our drug candidates for clinical trials. If any of our drug candidates are approved by the FDA or other regulatory agencies for commercial sale, we may need to contract with a third party to manufacture them in larger quantities. We currently use third-party manufacturers to produce ACP-103 and ACP-104 for us. While we believe that there are alternative sources available to manufacture our drug candidates, in the event that we seek such alternative sources, we may not be able to enter into replacement arrangements without delays or additional expenditures. We cannot estimate these delays or costs with certainty but do not expect them to be material.

The manufacturers of our drug candidates are obliged to operate in accordance with FDA-mandated current good manufacturing practices, or cGMPs. A failure of any of our contract manufacturers to establish and follow cGMPs and to document their adherence to such practices may lead to significant delays in clinical trials or in obtaining regulatory approval of drug candidates or the ultimate launch of products based on our drug candidates into the market. Failure by our third-party manufacturers or us to comply with applicable regulations could result in sanctions being imposed on us, including fines, injunctions, civil penalties, failure of the government to grant pre-market approval of drugs, delays, suspension or withdrawal of approvals, seizures or recalls of products, operating restrictions, and criminal prosecutions.

Our management has broad discretion over the use of our cash and we may not use our cash effectively, which could adversely affect our results of operations.

Our management has significant flexibility in applying our cash resources and could use these resources for corporate purposes that do not increase our market value, or in ways with which our stockholders may not agree. We may use our cash resources for corporate purposes that do not yield a significant return or any return at all for our stockholders, which may cause our stock price to decline.

We have incurred, and expect to continue to incur, increased costs as a result of recently enacted and proposed changes in laws and regulations relating to corporate governance and other matters.

Recently enacted and proposed changes in the laws and regulations affecting public companies, including the provisions of the Sarbanes-Oxley Act of 2002, or SOX, and rules adopted or proposed by the SEC and by The Nasdaq

 

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National Market, have resulted in, and will continue to result in, increased costs to us as we evaluate the implications of these rules and respond to their requirements. We issued an evaluation of our internal control over financial reporting under Section 404 of SOX with our annual report on Form 10-K for the year ended December 31, 2005, the preparations for which resulted in increased costs to us, which may continue to be reflected in our costs of operations. In the future, if we are not able to issue an evaluation of our internal control over financial reporting as required or we or our independent registered public accounting firm determine that our internal control over financial reporting is not effective, this shortcoming could have an adverse effect on our business and financial results and the price of our common stock could be negatively affected. New rules could make it more difficult or more costly for us to obtain certain types of insurance, including director and officer liability insurance, and we may be forced to accept reduced policy limits and coverage or incur substantially higher costs to obtain the coverage that is the same or similar to our current coverage. The impact of these events could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors, our board committees, and as executive officers. We cannot predict or estimate the total amount of the costs we may incur or the timing of such costs to comply with these rules and regulations.

If we are unable to establish sales and marketing capabilities or enter into agreements with third parties to sell and market any products we may develop, we may not be able to generate product revenue.

We do not currently have an organization for the sales, marketing and distribution of pharmaceutical products. In order to market any products that may be approved by the FDA, we must build our sales, marketing, managerial, and other non-technical capabilities or make arrangements with third parties to perform these services. If we are unable to establish adequate sales, marketing, and distribution capabilities, whether independently or with third parties, we may not be able to generate product revenue and may not become profitable.

If we engage in any acquisition, we will incur a variety of costs and may never realize the anticipated benefits of the acquisition.

We may attempt to acquire businesses, technologies, services, or products or license in technologies that we believe are a strategic fit with our business. We have limited experience in identifying acquisition targets, successfully completing proposed acquisitions and integrating any acquired businesses, technologies, services or products into our current infrastructure. The process of integrating any acquired business, technology, service, or product may result in unforeseen operating difficulties and expenditures and may divert significant management attention from our ongoing business operations. As a result, we will incur a variety of costs in connection with an acquisition and may never realize its anticipated benefits.

Earthquake damage to our facilities could delay our research and development efforts and adversely affect our business.

Our headquarters and research and development facilities in San Diego are located in a seismic zone, and there is the possibility of an earthquake, which could be disruptive to our operations and result in delays in our research and development efforts. In the event of an earthquake, if our facilities or the equipment in our facilities is significantly damaged or destroyed for any reason, we may not be able to rebuild or relocate our facilities or replace any damaged equipment in a timely manner and our business, financial condition, and results of operations could be materially and adversely affected. We do not have insurance for damages resulting from earthquakes.

Ongoing litigation may consume our management and financial resources and could adversely affect our business.

Approximately $8.4 million in the aggregate has been awarded against us in connection with a jury verdict in a civil action rendered in August 2005, which is currently accruing interest. While we have posted a bond and filed a notice of appeal, there can be no assurance that we will prevail in our efforts to contest the verdict. As a result of posting the bond, we had $12.5 million of restricted cash as of March 31, 2006. This amount is reflected as part of our cash and assets but, if we do not prevail in overturning the verdict, we may not be able to use some or all of that restricted cash. We will incur additional legal costs in connection with an appeal. The appeal will also require the attention of certain of our employees whose time could be used to further our business objectives. These proceedings may consume a substantial portion of our management and financial resources, regardless of outcome, and may take years to ultimately resolve. If these proceedings are resolved unfavorably, our financial condition would be harmed.

Risks Related to Our Intellectual Property

Our ability to compete may decline if we do not adequately protect our proprietary rights.

Our commercial success depends on obtaining and maintaining proprietary rights to our drug candidates and technologies and their uses, as well as successfully defending these rights against third-party challenges. We will only be able to protect our drug candidates, proprietary technologies, and their uses from unauthorized use by third parties to the extent that valid and enforceable patents, or effectively protected trade secrets, cover them. Although we have filed numerous patent

 

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applications with respect to ACP-104 and ACP-103, we have not been issued any patents with respect to ACP-104, and have been issued a limited number of patents, worldwide, with respect to ACP-103.

Our ability to obtain patent protection for our products and technologies is uncertain due to a number of factors, including:

 

    we may not have been the first to make the inventions covered by our pending patent applications or issued patents;

 

    we may not have been the first to file patent applications for our drug candidates or the technologies we rely upon;

 

    others may independently develop similar or alternative technologies or duplicate any of our technologies;

 

    our disclosures in patent applications may not be sufficient to meet the statutory requirements for patentability;

 

    any or all of our pending patent applications may not result in issued patents;

 

    we may not seek or obtain patent protection in all countries that will eventually provide a significant business opportunity;

 

    any patents issued to us or our collaborators may not provide a basis for commercially viable products, may not provide us with any competitive advantages or may be challenged by third parties;

 

    our proprietary technologies may not be patentable;

 

    others may design around our patent claims to produce competitive products which fall outside of the scope of our patents; or

 

    others may identify prior art which could invalidate our patents.

Even if we have or obtain patents covering our drug candidates or technologies, we may still be barred from making, using and selling our drug candidates or technologies because of the patent rights of others. Others have or may have filed, and in the future are likely to file, patent applications covering compounds, assays, genes, gene products or therapeutic products that are similar or identical to ours. There are many issued U.S. and foreign patents relating to genes, nucleic acids, polypeptides, chemical compounds or therapeutic products, and some of these may encompass reagents utilized in the identification of candidate drug compounds or compounds that we desire to commercialize. Numerous U.S. and foreign issued patents and pending patent applications owned by others exist in the area of central nervous system disorders and the other fields in which we are developing products. These could materially affect our ability to develop our drug candidates or sell our products. Because patent applications can take many years to issue, there may be currently pending applications, unknown to us, that may later result in issued patents that our drug candidates or technologies may infringe. These patent applications may have priority over patent applications filed by us.

We regularly conduct searches to identify patents or patent applications that may prevent us from obtaining patent protection for our proprietary compounds or that could limit the rights we have claimed in our patents and patent applications. In particular, we are aware of claims that are pending before, the United States Patent and Trademark Office that, if issued as currently drafted, would encompass the chemical structure of ACP-103. While we do not believe that these pending claims would be valid if issued in their current form, there can be no assurance that a court would find these claims invalid or that the text or substance of these claims will not be modified upon further prosecution of the application. If valid, these claims could limit our rights with respect to ACP-103.

Disputes may arise regarding the ownership or inventorship of our inventions. It is difficult to determine how such disputes would be resolved. Others may challenge the validity of our patents. If our patents are found to be invalid, we will lose the ability to exclude others from making, using or selling the inventions claimed therein.

Some of our academic institutional licensors, research collaborators and scientific advisors have rights to publish data and information to which we have rights. If we cannot maintain the confidentiality of our technology and other confidential information in connection with our collaborations, then our ability to receive patent protection or protect our proprietary information will be impaired. In addition, technology that we may license in may become important to some aspects of our business. We generally will not control the patent prosecution, maintenance or enforcement of in-licensed technology.

We have limited proprietary rights to one of our drug candidates, ACP-104, which may limit our ability to prevent competitors from exploiting that compound.

One of our drug candidates, ACP-104, is a publicly available compound and, if the claims of our pending patent applications issue, we will have limited proprietary rights in this candidate. Other companies may obtain patents or regulatory approvals to use the same drug for treatments other than to treat the indications for which we have filed for patent protection. We are aware of an issued patent not owned by us that claims the use of N-desmethylclozapine, which is the chemical name for ACP-104, to induce analgesia. ACP-104, which we are developing for treatment of schizophrenia, is formed in the body

 

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from clozapine and its structure was known prior to our filing of patent applications relating to its use to treat certain conditions. Accordingly, we will not be able to obtain composition of matter patents directed to the form of ACP-104 known prior to the filing of our patent applications. We have filed method of use patent applications for ACP-104, but a competitor could use ACP-104, and patent its method of use, for a treatment not covered by our patent applications. In addition, while we have filed patent applications directed to methods of synthesis of ACP-104 and various crystalline polymorphs thereof, those claims, if they issue, will not prevent a potential competitor from making ACP-104 using any method of synthesis or from using any polymorphic form of ACP-104, which is outside the scope of the claims that ultimately may issue.

Confidentiality agreements with employees and others may not adequately prevent disclosure of our trade secrets and other proprietary information and may not adequately protect our intellectual property, which could limit our ability to compete.

Because we operate in the highly technical field of drug discovery and development of small molecule drugs, we rely in part on trade secret protection in order to protect our proprietary technology and processes. However, trade secrets are difficult to protect. We enter into confidentiality and intellectual property assignment agreements with our corporate partners, employees, consultants, outside scientific collaborators, sponsored researchers, and other advisors. These agreements generally require that the other party keep confidential and not disclose to third parties all confidential information developed by the party or made known to the party by us during the course of the party’s relationship with us. These agreements also generally provide that inventions conceived by the party in the course of rendering services to us will be our exclusive property. However, these agreements may not be honored and may not effectively assign intellectual property rights to us. Enforcing a claim that a party illegally obtained and is using our trade secrets is difficult, expensive and time consuming and the outcome is unpredictable. In addition, courts outside the United States may be less willing to protect trade secrets. The failure to obtain or maintain trade secret protection could adversely affect our competitive position. In addition, we have not entered into any noncompete agreements with any of our employees other than Mark Brann, Ph.D., our founder, President, and Chief Scientific Officer.

A dispute concerning the infringement or misappropriation of our proprietary rights or the proprietary rights of others could be time consuming and costly, and an unfavorable outcome could harm our business.

There is significant litigation in our industry regarding patent and other intellectual property rights. While we are not currently subject to any pending intellectual property litigation, and are not aware of any such threatened litigation, we may be exposed to future litigation by third parties based on claims that our drug candidates, technologies or activities infringe the intellectual property rights of others. In particular, there are many patents relating to specific genes, nucleic acids, polypeptides or the uses thereof to identify drug candidates. Some of these may encompass genes or polypeptides that we utilize in our drug development activities. If our drug development activities are found to infringe any such patents, we may have to pay significant damages or seek licenses to such patents. A patentee could prevent us from using the patented genes or polypeptides for the identification or development of drug compounds. There are also many patents relating to chemical compounds and the uses thereof. If our compounds are found to infringe any such patents, we may have to pay significant damages or seek licenses to such patents. A patentee could prevent us from making, using or selling the patented compounds. We may need to resort to litigation to enforce a patent issued to us, protect our trade secrets or determine the scope and validity of third-party proprietary rights. From time to time, we may hire scientific personnel formerly employed by other companies involved in one or more areas similar to the activities conducted by us. Either we or these individuals may be subject to allegations of trade secret misappropriation or other similar claims as a result of their prior affiliations. If we become involved in litigation, it could consume a substantial portion of our managerial and financial resources, regardless of whether we win or lose. We may not be able to afford the costs of litigation. Any legal action against our company or our collaborators could lead to:

 

    payment of damages, potentially treble damages, if we are found to have willfully infringed a party’s patent rights;

 

    injunctive or other equitable relief that may effectively block our ability to further develop, commercialize, and sell products; or

 

    we or our collaborators having to enter into license arrangements that may not be available on commercially acceptable terms, if at all.

As a result, we could be prevented from commercializing current or future products.

The patent applications of pharmaceutical and biotechnology companies involve highly complex legal and factual questions, which, if determined adversely to us, could negatively impact our patent position.

The patent positions of pharmaceutical and biotechnology companies can be highly uncertain and involve complex legal and factual questions. For example, some of our patent applications will cover gene sequences and products and the uses of those gene sequences and products. Public disclosures and patent applications related to the Human Genome Project and other genomics efforts may limit the scope of our claims or make unpatentable subsequent patent applications. No

 

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consistent policy regarding the breadth of claims allowed in biotechnology patents has emerged to date. The United States Patent and Trademark Office’s standards are uncertain and could change in the future. Consequently, the issuance and scope of patents cannot be predicted with certainty. Patents, if issued, may be challenged, invalidated or circumvented. U.S. patents and patent applications may also be subject to interference proceedings, and U.S. patents may be subject to reexamination proceedings in the United States Patent and Trademark Office (and foreign patents may be subject to opposition or comparable proceedings in the corresponding foreign patent office), which proceedings could result in either loss of the patent or denial of the patent application or loss or reduction in the scope of one or more of the claims of the patent or patent application. In addition, such interference, reexamination and opposition proceedings may be costly. Accordingly, rights under any issued patents may not provide us with sufficient protection against competitive products or processes.

In addition, changes in or different interpretations of patent laws in the United States and foreign countries may permit others to use our discoveries or to develop and commercialize our technology and products without providing any compensation to us. The laws of some countries do not protect intellectual property rights to the same extent as U.S. laws and those countries may lack adequate rules and procedures for defending our intellectual property rights. For example, some countries, including many in Europe, do not grant patent claims directed to methods of treating humans and, in these countries, patent protection may not be available at all to protect our drug candidates.

If we fail to obtain and maintain patent protection and trade secret protection of our drug candidates, proprietary technologies and their uses, we could lose our competitive advantage and competition we face would increase, reducing our potential revenues and adversely affecting our ability to attain or maintain profitability.

Risks Related to Our Industry

We will be subject to stringent regulation in connection with the marketing of any products derived from our drug candidates, which could delay the development and commercialization of our products.

The pharmaceutical industry is subject to stringent regulation by the FDA and other regulatory agencies in the United States and by comparable authorities in other countries. Neither we nor our collaborators can market a pharmaceutical product in the United States until it has completed rigorous preclinical testing and clinical trials and an extensive regulatory clearance process implemented by the FDA. Satisfaction of regulatory requirements typically takes many years, depends upon the type, complexity and novelty of the product, and requires substantial resources. Even if regulatory approval is obtained, it may impose significant restrictions on the indicated uses, conditions for use, labeling, advertising, promotion, and/or marketing of such products, and requirements for post-approval studies, including additional research and development and clinical trials. These limitations may limit the size of the market for the product or result in the incurrence of additional costs. Any delay or failure in obtaining required approvals could have a material adverse effect on our ability to generate revenues from the particular drug candidate.

Outside the United States, the ability to market a product is contingent upon receiving approval from the appropriate regulatory authorities. The requirements governing the conduct of clinical trials, marketing authorization, pricing, and reimbursement vary widely from country to country. Only after the appropriate regulatory authority is satisfied that adequate evidence of safety, quality, and efficacy has been presented will it grant a marketing authorization. Approval by the FDA does not automatically lead to the approval by regulatory authorities outside the United States and, similarly, approval by regulatory authorities outside the United States will not automatically lead to FDA approval.

In addition, U.S. and foreign government regulations control access to and use of some human or other tissue samples in our research and development efforts. U.S. and foreign government agencies may also impose restrictions on the use of data derived from human or other tissue samples. Accordingly, if we fail to comply with these regulations and restrictions, the commercialization of our drug candidates may be delayed or suspended, which may delay or impede our ability to generate product revenues.

If our competitors develop and market products that are more effective than our drug candidates, they may reduce or eliminate our commercial opportunity.

Competition in the pharmaceutical and biotechnology industries is intense and expected to increase. We face competition from pharmaceutical and biotechnology companies, as well as numerous academic and research institutions and governmental agencies, both in the United States and abroad. Some of these competitors have products or are pursuing the development of drugs that target the same diseases and conditions that are the focus of our drug development programs.

For example, our potential product for treatment-induced dysfunctions in Parkinson’s disease would compete with off-label use of antipsychotic drugs, including Seroquel, marketed by Astra-Zeneca, and with the generic drug clozapine. Our potential products for the treatment of schizophrenia would compete with Zyprexa, marketed by Eli Lilly, Risperdal, marketed by Johnson & Johnson, Seroquel, and clozapine. In the area of neuropathic pain, potential products would compete with Neurontin and Lyrica, marketed by Pfizer, and Cymbalta, marketed by Eli Lilly, as well as a variety of generic or

 

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proprietary opioids. Our potential products for the treatment of glaucoma would compete with Xalatan, marketed by Pfizer, and Lumigan and Alphagan, marketed by Allergan.

Many of our competitors and their collaborators have significantly greater experience than we do in the following:

 

    identifying and validating targets;

 

    screening compounds against targets;

 

    preclinical studies and clinical trials of potential pharmaceutical products; and

 

    obtaining FDA and other regulatory approvals.

In addition, many of our competitors and their collaborators have substantially greater capital and research and development resources, manufacturing, sales and marketing capabilities, and production facilities. Smaller companies also may prove to be significant competitors, particularly through proprietary research discoveries and collaboration arrangements with large pharmaceutical and established biotechnology companies. Many of our competitors have products that have been approved or are in advanced development and may develop superior technologies or methods to identify and validate drug targets and to discover novel small molecule drugs. Our competitors, either alone or with their collaborators, may succeed in developing drugs that are more effective, safer, more affordable, or more easily administered than ours and may achieve patent protection or commercialize drugs sooner than us. Our competitors may also develop alternative therapies that could further limit the market for any drugs that we may develop. Our failure to compete effectively could have a material adverse affect on our business.

Any claims relating to improper handling, storage, or disposal of biological, hazardous, and radioactive materials used in our business could be costly and delay our research and development efforts.

Our research and development activities involve the controlled use of potentially harmful hazardous materials, including volatile solvents, biological materials such as blood from patients that has the potential to transmit disease, chemicals that cause cancer, and various radioactive compounds. Our operations also produce hazardous waste products. We face the risk of contamination or injury from the use, storage, handling or disposal of these materials. We are subject to federal, state and local laws and regulations governing the use, storage, handling, and disposal of these materials and specified waste products. The cost of compliance with these laws and regulations could be significant, and current or future environmental regulations may impair our research, development, or production efforts. If one of our employees were accidentally injured from the use, storage, handling, or disposal of these materials, the medical costs related to his or her treatment would be covered by our workers’ compensation insurance policy. However, we do not carry specific biological or hazardous waste insurance coverage and our general liability insurance policy specifically excludes coverage for damages and fines arising from biological or hazardous waste exposure or contamination. Accordingly, in the event of contamination or injury, we could be subject to criminal sanctions or fines or be held liable for damages, our operating licenses could be revoked, or we could be required to suspend or modify our operations and our research and development efforts.

Consumers may sue us for product liability, which could result in substantial liabilities that exceed our available resources and damage our reputation.

Researching, developing, and commercializing drug products entails significant product liability risks. Liability claims may arise from our and our collaborators’ use of products in clinical trials and the commercial sale of those products. Consumers may make these claims directly and our collaborators or others selling these products may seek contribution from us if they receive claims from consumers. Although we currently have product liability insurance that covers our clinical trials, we will need to increase and expand this coverage as we commence larger scale trials and if our drug candidates are approved for commercial sale. This insurance may be prohibitively expensive or may not fully cover our potential liabilities. Inability to obtain sufficient insurance coverage at an acceptable cost or otherwise to protect against potential product liability claims could prevent or inhibit the commercialization of products that we or our collaborators develop. Product liability claims could have a material adverse effect on our business and results of operations. Our liability could exceed our total assets if we do not prevail in a lawsuit from any injury caused by our drug products.

Risks Related to Our Common Stock

Our stock price may be particularly volatile because we are a drug discovery and development company.

The market prices for securities of biotechnology companies in general, and early-stage drug discovery and development companies in particular, have been highly volatile and may continue to be highly volatile in the future. The following factors, in addition to other risk factors described in this section, may have a significant impact on the market price of our common stock:

 

    the development status of our drug candidates, including results of our clinical trials for ACP-103, ACP-104, and our neuropathic pain collaboration;

 

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    the initiation, termination, or reduction in the scope of our collaborations or any disputes or developments regarding these collaborations;

 

    market conditions or trends related to biotechnology and pharmaceutical industries, or the market in general;

 

    announcements of technological innovations, new commercial products, or other material events by our competitors or us;

 

    disputes or other developments concerning our proprietary rights;

 

    changes in, or failure to meet, securities analysts’ or investors’ expectations of our financial performance;

 

    additions or departures of key personnel;

 

    discussions of our business, products, financial performance, prospects, or stock price by the financial and scientific press and online investor communities such as chat rooms;

 

    public concern as to, and legislative action with respect to, genetic testing or other research areas of biopharmaceutical companies, the pricing and availability of prescription drugs, or the safety of drugs and drug delivery techniques;

 

    regulatory developments in the United States and in foreign countries;

 

    developments in litigation or the announcement of new litigation matters; or

 

    economic and political factors, including but not limited to wars, terrorism, and political unrest.

In the past, following periods of volatility in the market price of a particular company’s securities, securities class action litigation has often been brought against that company. We may become subject to this type of litigation, which is often extremely expensive and diverts management’s attention.

If our officers, directors, and largest stockholders choose to act together, they may be able to control our management and operations, acting in their best interests and not necessarily those of our other stockholders.

Our directors, executive officers and holders of five percent or more of our outstanding common stock and their affiliates beneficially own a substantial portion of our outstanding common stock. As a result, these stockholders, acting together, have the ability to significantly influence all matters requiring approval by our stockholders, including the election of all of our board members, amendments to our certificate of incorporation, going-private transactions, and the approval of mergers or other business combination transactions. The interests of this group of stockholders may not always coincide with ACADIA’s interests or the interests of other stockholders and they may act in a manner that advances their best interests and not necessarily those of our other stockholders.

If we or our stockholders sell substantial amounts of our common stock, the market price of our common stock may decline.

A significant number of shares of our common stock are held by a small number of stockholders. Sales of a significant number of shares of our common stock, or the expectation that such sales may occur, could significantly reduce the market price of our common stock. Holders of a significant number of shares of our common stock, from investments made when we were a private company, have rights to cause us to file a registration statement on their behalf or include their shares in registration statements that we may file on our behalf or on behalf of other stockholders. Following our private financing in April 2005, we filed a registration statement with respect to approximately 6.5 million shares of our common stock that were owned by stockholders, including approximately 1.3 million shares that may be issued upon the exercise of warrants, as required by the terms of that financing. In addition, we have included all of the 1.9 million shares of our common stock purchased by Sepracor pursuant to our collaboration in a registration statement that we filed in January 2006. Our stock price may decline as a result of the sale of shares of our common stock pursuant to these registration statements.

Anti-takeover provisions in our charter documents and under Delaware law may make an acquisition of us more complicated and may make the removal and replacement of our directors and management more difficult.

Our amended and restated certificate of incorporation and amended and restated bylaws contain provisions that may delay or prevent a change in control, discourage bids at a premium over the market price of our common stock and adversely affect the market price of our common stock and the voting and other rights of the holders of our common stock. These provisions may also make it difficult for stockholders to remove and replace our board of directors and management. These provisions:

 

    establish that members of the board of directors may be removed only for cause upon the affirmative vote of stockholders owning at least a majority of our capital stock;

 

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    authorize the issuance of “blank check” preferred stock that could be issued by our board of directors to increase the number of outstanding shares and prevent or delay a takeover attempt;

 

    limit who may call a special meeting of stockholders;

 

    establish advance notice requirements for nominations for election to the board of directors or for proposing matters that can be acted upon at stockholder meetings;

 

    prohibit our stockholders from making certain changes to our amended and restated certificate of incorporation or amended and restated bylaws except with 66 2/3 percent stockholder approval; and

 

    provide for a board of directors with staggered terms.

We are also subject to provisions of the Delaware corporation law that, in general, prohibit any business combination with a beneficial owner of 15 percent or more of our common stock for 5 years unless the holder’s acquisition of our stock was approved in advance by our board of directors. Although we believe these provisions collectively provide for an opportunity to receive higher bids by requiring potential acquirors to negotiate with our board of directors, they would apply even if the offer may be considered beneficial by some stockholders.

 

ITEM 6. EXHIBITS

 

Exhibit
Number

  

Description of Document

3.1    Amended and Restated Certificate of Incorporation (filed as Exhibit 3.3 to Registration Statement File No. 333-113137).
3.2    Amended and Restated Bylaws (filed as Exhibit 3.5 to Registration Statement File No. 333-113137).
4.1    Form of common stock certificate of Registrant (filed as Exhibit 4.1 to Registration Statement No. 333-52492, dated December 21, 2000).
4.2    Form of Warrant to Purchase Preferred Stock issued to GATX Ventures on May 31, 2002 (filed as Exhibit 4.3 to Registration Statement No. 333-113137).
4.3    Form of Warrant to Purchase Common Stock issued to purchasers in a private placement on April 20, 2005 (filed as Exhibit 4.3 to Registration Statement No 333-124753).
10.1a    Second Amendment to Collaborative Research, Development and License Agreement, dated February 28, 2006, by and among the Registrant, Allergan Sales LLC (as successor in interest of Vision Pharmaceuticals L.P.) and Allergan, Inc. (filed as Exhibit 10.25 to Registrant’s Annual Report on Form 10-K, filed March 15, 2006)
10.2    Underwriting Agreement, dated April 27, 2006, by and between the Registrant and Banc of America Securities LLC and Lehman Brothers Inc., as representatives of the several underwriters named therein (filed as Exhibit 1.1 to Registrant’s Current Report on Form 8-K, filed April 28, 2006).
31.1    Certification of Uli Hacksell, Ph.D., Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2    Certification of Thomas H. Aasen, Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1    Certification of Uli Hacksell, Ph.D., Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2    Certification of Thomas H. Aasen, Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

a We have applied for confidential treatment of this exhibit with the SEC. The confidential portions of this exhibit are marked with an asterisk and have been omitted and filed separately with the SEC pursuant to our request for confidential treatment.

 

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SIGNATURES

Pursuant to the requirements 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.

 

            ACADIA Pharmaceuticals Inc.
Date: May 10, 2006     By:    /s/ Uli Hacksell, Ph.D.
     

Uli Hacksell, Ph.D.

Chief Executive Officer

(on behalf of the registrant and as the

registrant’s Principal Executive Officer)

    By:    /s/ Thomas H. Aasen
     

Thomas H. Aasen

Vice President and Chief Financial Officer

(on behalf of the registrant and as the

registrant’s Principal Financial and Accounting Officer)

 

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