['hepatitis c virus infection']
['ldv/sof', 'vdv', 'rbv']

        Inclusion Criteria:

          -  Age ≥ 18 years, with chronic HCV genotype 1 infection

          -  Documentation as treatment-experienced having received pegylated interferon (Peg-IFN)
             + RBV ≥ 4 weeks of duration without an additional agent in the regimen without
             achieving sustained viral response (SVR)

          -  Presence of compensated cirrhosis

          -  Screening laboratory values within defined thresholds

          -  Must use specific contraceptive methods if female of childbearing potential or
             sexually active male

          -  Not pregnant or a nursing female

        Exclusion Criteria:

          -  Co-infection with HIV or hepatitis B virus (HBV)

          -  Current or prior history of clinical hepatic decompensation

          -  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
      