Study of ABT-267 in Treatment Naive Hepatitis C Virus (HCV) Genotype 1 Infected Subjects

A Blinded, Randomized, Placebo-Controlled, Dose-Ranging Study to Evaluate the Safety, Pharmacokinetics, and Antiviral Activity of ABT-267 in Combination With Peginterferon Alpha-2a and Ribavirin (pegIFN/RBV) in Treatment-Naïve Subjects With Genotype 1 Chronic Hepatitis C Virus (HCV) Infection

The purpose of this study was to assess the safety, pharmacokinetics, and 4-week rapid virologic response (RVR) of 3 different doses of ABT-267 (also known as ombitasvir) in combination with pegylated interferon/ribavirin (pegIFN/RBV) compared with pegIFN/RBV alone (ABT-267 placebo) in treatment naïve, hepatitis C virus (HCV), genotype 1-infected participants.

The study was a randomized, double blind, placebo controlled study consisting of 2 substudies. In substudy 1, participants received 1 of 3 doses of ABT-267 or placebo + pegIFN/RBV for 12 weeks. In substudy 2, participants received pegIFN/RBV for 36 weeks. Participants were followed for 48 weeks post ABT-267 treatment for evaluation of efficacy and safety.

Inclusion Criteria:

• Treatment naïve participants
• Females must be either postmenopausal for at least 2 years or surgically sterile
• Males must be surgically sterile or practicing specific forms of birth control
• Chronic hepatitis C virus (HCV), genotype-1 infected participants
• Documented FibroTest score in combination with an Aspartate Aminotransferase to Platelet Ratio Index (APRI), or a liver biopsy within the last 12 months to document absence of cirrhosis

Exclusion Criteria:

• Pregnant or breastfeeding female
• Use of any medications contraindicated for use with pegylated interferon(pegIFN) or ribavirin (RBV) 2 weeks prior to study drug administration or 10 half-lives, whichever is longer
• Clinically significant cardiac, respiratory (except mild asthma), renal, gastrointestinal, hematologic, neurologic disease, or any uncontrolled medical illness or psychiatric disease or disorder
• Current or past clinical evidence of cirrhosis or bridging fibrosis
• Abnormal screening laboratory results