PRINCETON, N.J. , July 25, 2011 /PRNewswire/ -- Pharmasset, Inc. (Nasdaq: VRUS), a clinical stage pharmaceutical company committed to discovering, developing, and commercializing novel drugs to treat viral infections, today reported financial results and operational highlights for the quarter ended June 30, 2011.

Financial Results

Revenues were $0.2 million during the quarter ended June 30, 2011 compared to $0.2 million for the quarter ended June 30, 2010 and include amortization of up-front and subsequent collaborative and license payments received from Roche.

Net cash used in operating activities during the three months ended June 30, 2011 was $22.3 million. Pharmasset held $188.2 million in cash and cash equivalents as of June 30, 2011.

Total operating expenses for the quarter ended June 30, 2011 were $22.6 million as compared to $15.7 million for the same period in 2010.

Pharmasset reported a net loss of $22.6 million, or $0.60 per share, for the quarter ended June 30, 2011, as compared to a net loss of $16.0 million, or $0.50 per share, for the quarter ended June 30, 2010.

Recent Operational Highlights:

-- Bristol-Myers Squibb initiated a combination trial with BMS-790052 and PSI-7977

-- Completed enrollment of ELECTRON's original four arms with PSI-7977

-- Expanded the ELECTRON trial with the addition of three new treatment arms

-- We were granted a US patent (US patent 7,964,580) titled 'Nucleoside Phosphoramidate Prodrugs' covering PSI-7977

-- Pharmasset and Tibotec announced a clinical collaboration to combine PSI-7977 and Tibotec's TMC435, a protease inhibitor

-- Reported SVR24 data from PROTON trial with PSI-7977 in genotype 2 or 3 patients

-- Roche disclosed that it expects to file, in 2014, an application for marketing approval of mericitabine

"Pharmasset had a very successful first half of 2011 with a strong showing at the EASL meeting, the signing of a clinical collaboration with Tibotec and the issuance of a US patent for PSI-7977," stated Schaefer Price, President and Chief Executive Officer. "The second half of 2011 holds a number of important clinical milestones for us, as we plan to report SVR12 data from both the PROTON and ELECTRON trials. In addition, we plan to initiate the QUANTUM study, our first SVR-focused, interferon free trial with PSI-7977 and PSI-938 in the third quarter."

Calendar Year 2011 Anticipated Milestones:

-- Report SVR12 data from PROTON trial with PSI-7977 in genotype 1 patients in second half 2011

-- Report SVR12 data from ELECTRON trial with PSI-7977 in genotype 2 or 3 patients in second half 2011

-- Initiate QUANTUM trial with PSI-7977 and PSI-938 in third quarter 2011

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 under study in four Phase 2b trials in patients with HCV genotypes 1 through 6, including abbreviated duration interferon and interferon-free regimens. Our purine, PSI-938, an unpartnered guanosine nucleotide analog, recently reported safety and efficacy data from 14 days of monotherapy as well as 14 days in combination with the pyrimidine, PSI-7977. An SVR-endpoint study of the purine-pyrimidine combination is anticipated to begin in the third quarter of 2011. 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.

                               PHARMASSET, INC.
                      CONDENSED STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
              (in thousands, except share and per share amounts)


                                             Three Months Ended
                                                  June 30,
                                                  --------
                                                2011             2010
                                                ----             ----

    Revenues                                    $246             $249
                                                ----             ----

    COSTS AND EXPENSES:
      Research and development                18,917           11,505
      General and
       administrative                          3,719            4,200
                                               -----            -----

               Total costs and expenses       22,636           15,705
                                              ------           ------

    Operating loss                           (22,390)         (15,456)

    Investment income                              4                1
    Other income                                   -                -
    Interest expense                            (219)            (565)
                                                ----             ----

    Loss before income taxes                 (22,605)         (16,020)
    Provision (benefit) for
     income taxes                                  -                -
                                                 ---              ---

    Net loss                                $(22,605)        $(16,020)
                                            ========         ========



    Net loss per share: basic
     and diluted                              $(0.60)          $(0.50)
                                              ======           ======


    Weighed average shares
     outstanding:
    basic and diluted                     37,435,614       32,000,528
                                          ==========       ==========




                                              Nine Months Ended
                                                  June 30,
                                                  --------
                                                2011             2010
                                                ----             ----

    Revenues                                    $739             $769
                                                ----             ----

    COSTS AND EXPENSES:
      Research and development                54,680           32,731
      General and
       administrative                         12,567           12,086
                                              ------           ------

               Total costs and expenses       67,247           44,817
                                              ------           ------

    Operating loss                           (66,508)         (44,048)

    Investment income                              8                6
    Other income                                 489                -
    Interest expense                            (927)          (1,909)
                                                ----           ------

    Loss before income taxes                 (66,938)         (45,951)
    Provision (benefit) for
     income taxes                               (973)               -
                                                ----              ---

    Net loss                                $(65,965)        $(45,951)
                                            ========         ========



    Net loss per share: basic
     and diluted                              $(1.84)          $(1.54)
                                              ======           ======


    Weighed average shares
     outstanding:
    basic and diluted                     35,937,456       29,932,398
                                          ==========       ==========

                             PHARMASSET, INC.
                              BALANCE SHEETS
      (in thousands, except par value, share and per share amounts)


                                                                As of
                                                              June 30,
                                                                    2011
                                                                    ----
                                                             (unaudited)
    ASSETS
    CURRENT ASSETS:
      Cash and cash equivalents                                 $188,226
      Amounts due from collaboration partner                           -
      Prepaid expenses and other current assets                    2,078
                                                                   -----
               Total current assets                              190,304
                                                                 -------

    EQUIPMENT AND LEASEHOLD IMPROVEMENTS:
      Equipment                                                    4,767
      Leasehold improvements                                       1,836
                                                                   -----
                                                                   6,603
      Less accumulated depreciation and
       amortization                                               (4,547)
                                                                  ------
               Total equipment and leasehold improvements,
                net                                                2,056
    Restricted cash                                                  100
    Other assets                                                     139
               Total                                            $192,599
                                                                ========

    LIABILITIES AND STOCKHOLDERS' EQUITY
    CURRENT LIABILITIES:
      Current portion of long-term debt                           $3,919
      Accounts payable                                             3,353
      Accrued expenses                                             6,174
      Deferred rent                                                   27
      Deferred revenue                                               985
                                                                     ---
               Total current liabilities                          14,458

      Deferred rent                                                   98
      Deferred revenue                                             1,232
      Long-term debt, net of discount of $29 and
       $150 as of                                                    477
         June 30, 2011 and September 30, 2010,
          respectively
               Total liabilities                                  16,265
                                                                  ------

    Commitments and contingencies
    STOCKHOLDERS' EQUITY:
      Common stock, $0.001 par value, 100,000,000
       shares authorized,                                             38
         37,624,362 and 34,043,898 shares issued and
          outstanding at
        June 30, 2011 and September 30, 2010,
         respectively
      Warrants to purchase 38,727 shares of
       common stock for                                              380
            $12.05 per share at June 30, 2011, and 127,248
         shares of common stock for $12.05 per share
          at
         September 30, 2010
      Additional paid-in capital                                 475,348
      Accumulated deficit                                       (299,432)
               Total stockholders' equity                        176,334
                                                                 -------
               Total                                            $192,599
                                                                ========




                                                               As of
                                                             September
                                                                 30,
                                                                   2010
                                                                   ----

    ASSETS
    CURRENT ASSETS:
      Cash and cash equivalents                                $127,081
      Amounts due from collaboration partner                          6
      Prepaid expenses and other current assets                     718
                                                                    ---
               Total current assets                             127,805
                                                                -------

    EQUIPMENT AND LEASEHOLD IMPROVEMENTS:
      Equipment                                                   4,060
      Leasehold improvements                                      1,837
                                                                  -----
                                                                  5,897
      Less accumulated depreciation and
       amortization                                              (4,184)
                                                                 ------
               Total equipment and leasehold improvements,
                net                                               1,713
    Restricted cash                                                 100
    Other assets                                                    143
               Total                                           $129,761
                                                               ========

    LIABILITIES AND STOCKHOLDERS' EQUITY
    CURRENT LIABILITIES:
      Current portion of long-term debt                          $8,705
      Accounts payable                                            5,037
      Accrued expenses                                            5,863
      Deferred rent                                                  25
      Deferred revenue                                              985
                                                                    ---
               Total current liabilities                         20,615

      Deferred rent                                                  93
      Deferred revenue                                            1,971
      Long-term debt, net of discount of $29 and
       $150 as of                                                 2,934
         June 30, 2011 and September 30, 2010,
          respectively
               Total liabilities                                 25,613
                                                                 ------

    Commitments and contingencies
    STOCKHOLDERS' EQUITY:
      Common stock, $0.001 par value, 100,000,000
       shares authorized,                                            34
         37,624,362 and 34,043,898 shares issued and
          outstanding at
        June 30, 2011 and September 30, 2010,
         respectively
      Warrants to purchase 38,727 shares of
       common stock for                                           1,230
            $12.05 per share at June 30, 2011, and 127,248
         shares of common stock for $12.05 per share
          at
         September 30, 2010
      Additional paid-in capital                                336,351
      Accumulated deficit                                      (233,467)
               Total stockholders' equity                       104,148
                                                                -------
               Total                                           $129,761
                                                               ========

SOURCE Pharmasset, Inc.