Idenix Pharmaceuticals Announces Samatasvir (IDX719) Poster Presentations at the Asian Pacific Association for the Study of the Liver (APASL) Conference CAMBRIDGE, Mass., June 6, 2013 (GLOBE NEWSWIRE) -- Idenix Pharmaceuticals, Inc. (Nasdaq:IDIX), a biopharmaceutical company engaged in the discovery and development of drugs for the treatment of human viral diseases, today announced three poster presentations featuring clinical and preclinical data for samatasvir (IDX719), Idenix's once-daily pan-genotypic NS5A inhibitor for the treatment of hepatitis C virus (HCV) infection, at the Asian Pacific Association for the Study of the Liver (APASL) Liver Week 2013, taking place in Singapore, June 6-10, 2013. Idenix recently initiated a phase II clinical trial (HELIX-1) evaluating an all-oral, direct-acting antiviral (DAA) HCV combination regimen of samatasvir and simeprevir (TMC435), a once-daily protease inhibitor jointly developed by Janssen R&D Ireland and Medivir AB. The following abstracts will be presented in poster sessions during APASL Liver Week 2013 in the Conference Exhibition Hall on Friday, June 7, 2013, 8:30am - 5:30pm SGT: *Abstract No. 2110: "Pharmacokinetics and Pharmacodynamics of IDX719, a Pan-Genotypic HCV NS5A Inhibitor, in Genotype 1, 2, 3 or 4 HCV-Infected Subjects." *Abstract No. 2121: "Hepatitis C Virus NS5A Inhibitor IDX719 Demonstrates Potent, Pan-genotypic Activity in Preclinical and Clinical Studies." *Abstract No. 2127: "IDX719, a Pan-genotypic HCV NS5A Replication Complex Inhibitor, Is a Promising Candidate for HCV Combination DAA Treatment." ABOUT SAMATASVIR (IDX719) Samatasvir is an NS5A inhibitor with low picomolar, pan-genotypic antiviral activity in vitro. To date, samatasvir has been safe and well-tolerated after single and multiple doses of up to 150 mg in healthy volunteers for up to 14 days' duration and up to 100 mg in HCV-infected patients up to 3 days' duration. There have been no treatment-emergent serious adverse events reported in the program. Samatasvir has demonstrated potent pan-genotypic antiviral activity in HCV-infected patients with mean maximal viral load reductions up to approximately 4.0 log IU/mL across HCV genotypes 1-4 in a proof-of-concept, three-day monotherapy study. The HELIX-1 trial is a 12-week, randomized, double-blind, parallel group study evaluating the safety and tolerability of samatasvir and simeprevir in addition to antiviral activity endpoints, with a target enrollment of 90 treatment-naïve, non-cirrhotic, genotype 1b or 4 HCV-infected patients. The HELIX-1 trial is the first study in HCV-infected patients to commence under a non-exclusive collaboration agreement signed with Janssen in January 2013. A second trial (HELIX-2) of samatasvir, simeprevir and TMC647055, a once-daily non-nucleoside polymerase inhibitor boosted with low-dose ritonavir being developed by Janssen, is expected to initiate in the second half of 2013. ABOUT HEPATITIS C Hepatitis C virus is a common blood-borne pathogen infecting three to four million people worldwide annually.The World Health Organization (WHO) estimates that more than 170 million people worldwide are chronically infected with HCV, representing a nearly 5-fold greater prevalence than human immunodeficiency virus. ABOUT IDENIX Idenix Pharmaceuticals, Inc., headquartered in Cambridge, Massachusetts, is a biopharmaceutical company engaged in the discovery and development of drugs for the treatment of human viral diseases. Idenix's current focus is on the treatment of patients with hepatitis C virus (HCV) infection. For further information about Idenix, please refer to www.idenix.com. FORWARD-LOOKING STATEMENTS This press release contains "forward-looking statements" for purposes of the safe harbor provisions of The Private Securities Litigation Reform Act of 1995, including but not limited to the statements regarding the Company's future business and financial performance. For this purpose, any statements contained herein that are not statements of historical fact may be deemed forward-looking statements. Without limiting the foregoing, the words "expect," "plans," "anticipates," "intends," "will," and similar expressions are also intended to identify forward-looking statements, as are expressed or implied statements with respect to the Company's potential pipeline candidates, including any expressed or implied statements regarding the efficacy and safety of IDX719 or any other drug candidate; the successful development of novel combinations of direct-acting antivirals for the treatment of HCV; the likelihood and success of any future clinical trials involving IDX719 or our other drug candidates; and expectations with respect to funding of operations and future cash balances. Actual results may differ materially from those indicated by such forward-looking statements as a result of risks and uncertainties, including but not limited to the following: there can be no guarantees that the Company will advance any clinical product candidate or other component of its potential pipeline to the clinic, to the regulatory process or to commercialization; management's expectations could be affected by unexpected regulatory actions or delays; uncertainties relating to, or unsuccessful results of, clinical trials, including additional data relating to the ongoing clinical trials evaluating its product candidates; the Company's ability to obtain additional funding required to conduct its research, development and commercialization activities; changes in the Company's business plan or objectives; the ability of the Company to attract and retain qualified personnel; competition in general; and the Company's ability to obtain, maintain and enforce patent and other intellectual property protection for its product candidates and its discoveries. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from any future results, performance or achievements expressed or implied by such statements. These and other risks which may impact management's expectations are described in greater detail under the heading "Risk Factors" in the Company's quarterly report on Form 10-Q for the quarter ended March 31, 2013 as filed with the Securities and Exchange Commission (SEC) and in any subsequent periodic or current report that the Company files with the SEC. All forward-looking statements reflect the Company's estimates only as of the date of this release(unless another date is indicated) and should not be relied upon as reflecting the Company's views, expectations or beliefs at any date subsequent to the date of this release. While Idenix may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so, even if the Company's estimates change. CONTACT: Idenix Pharmaceuticals Contact: Teri Dahlman, (617) 995-9807 Idenix Pharmaceuticals logo
Idenix Pharmaceuticals Announces Samatasvir (IDX719) Poster Presentations at the Asian Pacific Association for the Study of the
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