Achillion Announces Janssen Initiated Phase 2a Study to Evaluate Combination of AL-335,ACH-3102, and Simeprevir for Treatment of Genotype 1 Chronic HCV

Achillion Pharmaceuticals, Inc.

announced today that Alios Biopharma Inc., part of the Janssen Pharmaceutical Companies (Janssen) has initiated treatment in a phase 2a clinical trial to evaluate the safety, pharmacokinetics and efficacy of AL-335, odalasvir (also known as ACH-3102), and simeprevir in treatment-naïve patients with genotype 1 chronic hepatitis C virus (HCV) infection. This phase 2a study is a randomized, open-label, three-arm study of AL-335, a nucleotide-based HCV NS5B polymerase inhibitor, odalasvir, an HCV NS5A inhibitor, and simeprevir, an HCV NS3/4A protease inhibitor. Patients will be randomized to one of three treatment arms and receive once daily treatment for a duration of four, six or eight weeks. The primary objective of the study is to establish the safety of the treatment regimen with secondary endpoints consisting of pharmacokinetics, the proportion of subjects achieving sustained viral response (SVR), and the effect on the viral resistance profile after treatment. The study is expected to enroll approximately 60 patients across the three treatment arms. As previously announced on May 19, 2015, Achillion has granted Janssen an exclusive, worldwide license to develop and, upon regulatory approval, commercialize HCV