Safety and Efficacy of LDV/SOF Fixed-Dose Combination (FDC) ± Ribavirin in HCV Genotype 1 Subjects

A Phase 2, Randomized, Open-Label Study of Sofosbuvir/GS-5885 Fixed-Dose Combination ± Ribavirin in Subjects With Chronic Genotype 1 HCV Infection

This study is to evaluate the safety, tolerability, and antiviral efficacy of ledipasvir/sofosbuvir (LDV/SOF) fixed-dose combination (FDC) with or without ribavirin (RBV), administered for 8 or 12 weeks of treatment in participants with chronic genotype 1 hepatitis C virus (HCV) infection who are treatment-naive, and for 12 weeks in participants who had previously received a regimen containing a protease inhibitor for the treatment of HCV.

Inclusion Criteria:

• Age ≥ 18 years, with chronic genotype 1 HCV infection
• HCV RNA equal to or greater than 10,000 IU/mL at screening
• Cirrhosis determination; a liver biopsy may be required
• Screening laboratory values within defined thresholds
• Use of two effective contraception methods if female of childbearing potential or sexually active male

Exclusion Criteria:

• Pregnant or nursing female or male with pregnant female partner
• Current or prior history of clinical hepatic decompensation
• Hepatocellular carcinoma (HCC) or other malignancy (with exception of certain resolved skin cancers)
• Chronic use of systemic immunosuppressive agents
• History of clinically significant illness or any other medical disorder that may interfere with subject treatment, assessment or compliance with the protocol