A Study to Evaluate the Safety and Effect of Treatment With Experimental Antiviral Drugs in Combination With Peginterferon Alpha-2a and Ribavirin in People With Hepatitis C Virus Who Did Not Respond to Treatment in a Previous AbbVie/Abbott Combination Study

Exclusion Criteria

• •In subjects with a prior null or partial response to pegIFN/RBV treatment at any time prior to pre-screening for this study or any prior failure with pegIFN/RBV plus telaprevir, the presence of variants relative to the appropriate prototypic reference sequence (H77 for 1a or Con1 for 1b) at any of the following positions: NS3 155, 156, or 168; or NS5A 28, 29, 30, 31, 32, 58, or 93.
• •Females who are pregnant or plan to become pregnant, or breast-feeding, or males whose partners are pregnant or planning to become pregnant within 7 months (or per local RBV label) after their last dose of RBV.
• •Use of known strong inducers (e.g., phenobarbital, rifampin, carbamazepine, St. John's Wort) of Cytochrome P450 3A (CYP3A) within 2 weeks prior to study drug administration.
• •Use of any medications contraindicated for use with pegIFN alpha-2a, RBV or ritonavir within 2 weeks prior to study drug administration. Prior to entering the study, subjects must be able to safely discontinue the contraindicated medication or switch to an acceptable alternative under supervision of the investigator.
• •Discontinuation of antiviral therapy due to intolerance or a DAA- or RBV-associated adverse event in a previous AbbVie/Abbott DAA combination study.
• •Subjects with compensated cirrhosis must also not meet the following criteria:
• •Any current or past clinical evidence of Child-Pugh B or C Classification or clinical history of liver decompensation such as ascites (noted on physical exam), variceal bleeding or hepatic encephalopathy.
• •Serum Alpha-Fetoprotein (sAFP) \> 100 ng/mL at Screening.
• •A screening ultrasound suspicious for hepatocellular carcinoma and confirmed with a subsequent CT scan or MRI during the screening period.