Achillion (ACHN) Reports Encouraging SVR4 Data for Sovaprevir Phase 2
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Achillion Pharmaceuticals, Inc. (Nasdaq: ACHN) today announced sustained viral response (SVR4) results of 85 to 100 percent from an ongoing multi-dose Phase 2 trial evaluating 12 weeks of dosing with sovaprevir (formerly ACH-1625), a once-daily protease inhibitor, in combination with pegylated interferon plus ribavirin (P/R) followed by an additional 12 weeks of P/R. In addition, the Company announced today that ACH-3102, a second-generation pan-genotypic NS5A inhibitor, has been safe and well tolerated by healthy volunteers in both single and 14-day multiple ascending dose groups. Further, enrollment of patients in a Phase 1 proof-of-concept clinical trial to evaluate the safety and efficacy of ACH-3102 in patients with genotype 1 HCV has been initiated.
In June 2011, Achillion initiated a randomized Phase 2 trial evaluating three doses (200 mg, 400 mg, or 800 mg) of sovaprevir given once daily in combination with pegylated interferon plus ribavirin (P/R) for 12 weeks followed by an additional 12 or 36 weeks of P/R, for the treatment of genotype 1 HCV.
As previously reported in April 2012, of the 58 patients enrolled in this study, the majority had HCV genotype 1a (n=35 (60%)), with remaining patients having HCV genotype 1b (n=20) or genotype 1 (n=3). Approximately 71% of the patients were IL28B genotype CT/TT, the more difficult to treat mutation, 64% were male and 17% were African American. The complete early virologic responses (cEVR) across the 200 mg, 400 mg, and 800 mg sovaprevir dose groups were 100%, 94% and 100%, respectively.
Today, the Company reported SVR4 rates of 90%; 85%; and 100% in the 200 mg, 400 mg, and 800 mg dose groups, respectively, after 24 weeks of therapy consisting of 12 weeks of sovaprevir and P/R followed by additional 12 weeks of P/R. In all, 39 patients were assigned to receive an additional 12 weeks of P/R therapy with the remaining 14 patients assigned to receive an additional 36 weeks of P/R.
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In June 2011, Achillion initiated a randomized Phase 2 trial evaluating three doses (200 mg, 400 mg, or 800 mg) of sovaprevir given once daily in combination with pegylated interferon plus ribavirin (P/R) for 12 weeks followed by an additional 12 or 36 weeks of P/R, for the treatment of genotype 1 HCV.
As previously reported in April 2012, of the 58 patients enrolled in this study, the majority had HCV genotype 1a (n=35 (60%)), with remaining patients having HCV genotype 1b (n=20) or genotype 1 (n=3). Approximately 71% of the patients were IL28B genotype CT/TT, the more difficult to treat mutation, 64% were male and 17% were African American. The complete early virologic responses (cEVR) across the 200 mg, 400 mg, and 800 mg sovaprevir dose groups were 100%, 94% and 100%, respectively.
Today, the Company reported SVR4 rates of 90%; 85%; and 100% in the 200 mg, 400 mg, and 800 mg dose groups, respectively, after 24 weeks of therapy consisting of 12 weeks of sovaprevir and P/R followed by additional 12 weeks of P/R. In all, 39 patients were assigned to receive an additional 12 weeks of P/R therapy with the remaining 14 patients assigned to receive an additional 36 weeks of P/R.
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