EX-99.1 2 b82649exv99w1.htm EX-99.1 exv99w1
Exhibit 1
JOINT FILING AGREEMENT
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agrees, as of September 13, 2010, that only one statement containing the information required by Schedule 13D, and each amendment thereto, need be filed with respect to the ownership by each of the undersigned of shares of Common Stock of Cypress Bioscience, Inc., and such statement to which this Joint Filing Agreement is attached as Exhibit 1 is filed on behalf of each of the undersigned.
             
    RA CAPITAL HEALTHCARE FUND, L.P.    
 
            
 
  By:   RA Capital Management, LLC
     General Partner		    
 
            
 
  By:   /s/ Peter Kolchinsky    
 
  Name:  
 
Peter Kolchinsky 		   
 
  Title:   Manager    
 
            
    RA CAPITAL MANAGEMENT, LLC    
 
            
 
  By:   /s/ Peter Kolchinsky    
 
  Name:  
 
Peter Kolchinsky 		   
 
  Title:   Manager    
 
            
    PETER KOLCHINSKY    
 
            
    /s/ Peter Kolchinsky    
         

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