( States have been infectedwith HCV of ...)Pharmasset Announces Clevudine and Hepatitis C Presentations at,EASL,Health

About Pharmasset

Pharmasset is a clinical-stage pharmaceutical company committed to discovering, developing and commercializing novel drugs to treat viral infections. Pharmasset's primary focus is on the development of oral therapeutics for the treatment of hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV).

     Contact:

     Alan Roemer

     Vice President, Investor Relations & Corporate Communications

     

     Office: (609) 613-4125

STATEMENTS IN THIS COMPANY PRESS RELEASE MAY CONSTITUTE FORWARD-LOOKING STATEMENTS AND ARE SUBJECT TO NUMEROUS RISKS AND UNCERTAINTIES, INCLUDING THE FAILURE OF CLEVUDINE AND R7128 TO PERFORM AS EXPECTED, THE COMPANY'S ABILITY TO ATTRACT AND RETAIN QUALIFIED PERSONNEL TO CONDUCT THE REQUIRED CLINICAL TRIALS OF CLEVUDINE AND R7128 , THE STATUS OF THE COMPANY'S HCV COLLABORATION WITH ROCHE, THE COMPANY'S FUTURE CAPITAL NEEDS TO FUND THE CLEVUDINE AND R7128 DEVELOPMENT PROGRAMS, THE COMPANY'S ABILITY TO OBTAIN ADDITIONAL FINANCING, THE COMPANY'S ABILITY TO OBTAIN REQUIRED REGULATORY APPROVALS FOR CLEVUDINE AND R7128, THE DEVELOPMENT OF COMPETITIVE HBV AND HCV PRODUCTS BY OTHERS, THE EXISTENCE OF THIRD-PARTY PATENT RIGHTS, AND OTHER RISKS INHERENT IN DISCOVERY AND DEVELOPMENT STAGE PROGRAMS AT A BIOTECHNOLOGY COMPANY. THE ACTUAL RESULTS FOR CLEVUDINE AND R7128 MAY DIFFER MATERIALLY FROM THOSE ANTICIPATED IN THIS COMPANY PRESS RELEASE. THE COMPANY DISCLAIMS ANY OBLIGATION TO UPDATE THE STATEMENTS CONTAINED IN THIS COMPANY PRESS RELEASE.

CONTACT: Alan Roemer, Vice President, Investor Relations & CorporateCommunications of Pharmasset, Inc., +1-609-613-4125, alan.roemer@pharmasset.com

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