['hepatitis c virus infection']
['sof/vel']

        Key Inclusion Criteria:

          -  HCV RNA ≥ 10^4 IU/mL at screening

          -  Chronic HCV infection (≥ 6 months) documented by prior medical history or liver biopsy

        Key Exclusion Criteria:

          -  Any other chronic liver disease

          -  Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV)

          -  Clinical hepatic decompensation

          -  Prior exposure to SOF or other nucleotide analogue HCV NS5B inhibitor or any HCV NS5A
             inhibitor

        Note: Other protocol defined Inclusion/ Exclusion criteria may apply.
      