Pharmasset to Present at Credit Suisse First Boston Healthcare Conference

PRINCETON, N.J., Nov. 8, 2011 /PRNewswire/ -- Pharmasset, Inc. (Nasdaq: VRUS) announces that management will present at the Credit Suisse First Boston Healthcare Conference to be held November 8 to 10, 2011 at the Biltmore Hotel, Phoenix, Arizona. Patrick Higgins, Pharmasset's Executive Vice President, will provide an overview of the company at the Credit Suisse First Boston conference on Wednesday, November 9, 2011 at 1:30 PM (CT).

To access a simultaneous webcast of Mr. Higgins's overview via the internet, log on to the "Events & Presentations" section of the Investor Center on Pharmasset's website at http://investor.pharmasset.com/events.cfm. Please connect to the website at least ten minutes prior to the start of the presentation to ensure adequate time for a reliable connection and any software download that may be necessary for the webcast.

A replay of the webcasts will be available on Pharmasset's website for thirty days following the conference. The investor presentation will be available for download in PDF format immediately following the presentation in the "Events & Presentations" section of the Investor Center on Pharmasset's website at http://investor.pharmasset.com/events.cfm.

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 the development of oral therapeutics for the treatment of hepatitis C virus (HCV) infection. Our research and development efforts are focused on nucleoside/tide analogs, a class of compounds which act as alternative substrates for the viral polymerase, thus inhibiting viral replication. We currently have three clinical-stage product candidates advancing in trials in various populations. Our pyrimidine, PSI-7977, an unpartnered uracil nucleotide analog, is currently being studied in an interferon-free, Phase 3 program (FISSION and POSITRON) and in five Phase 2b trials in subjects with all HCV genotypes. Our purine, PSI-938, an unpartnered guanosine nucleotide analog, is in QUANTUM, a Phase 2b interferon-free trial of PSI-7977 and PSI-938 in subjects with all HCV genotypes. Mericitabine (RG7128) continues in three Phase 2b trials and one interferon-free trial being conducted through a strategic collaboration with Roche.

   Contact
       Richard E. T. Smith, Ph.D.
       VP, Investor Relations and Corporate Communications
       Office+1 (609) 865-0693

Forward-Looking Statements

Pharmasset "Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release that are not historical facts are "forward-looking statements," that involve risks, uncertainties, and other important factors, including, without limitation, the risk of cessation or delay of any of the ongoing or planned clinical trials and/or our development of our product candidates, the risk that the results of previously conducted studies involving our product candidates will not be repeated or observed in ongoing or future studies involving our product candidates, the risk that our collaboration with Roche will not continue or will not be successful, and the risk that any one or more of our product candidates will not be successfully developed and commercialized. For a discussion of risks, uncertainties, and other important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled "Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended September 30, 2010 and our Quarterly Reports on Form 10-Q filed with the Securities and Exchange Commission and discussions of potential risks, uncertainties, and other important factors in our subsequent filings with the Securities and Exchange Commission.

SOURCE Pharmasset, Inc.