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

        Key Inclusion Criteria:

          -  Genotype 1 or 4 chronic HCV infection

          -  Have received a kidney transplant more than 6 months before the Baseline visit

          -  Cirrhosis determination

          -  Screening laboratory parameters within defined thresholds

          -  Use of two effective contraception methods if female of childbearing potential or
             sexually active male

        Key Exclusion Criteria:

          -  Pregnant or nursing female or male with pregnant female partner

          -  Hepatocellular carcinoma (HCC) or other malignancy (with exception of certain
             -resolved skin cancers)

          -  History of clinically significant illness or any other medical disorder that may
             interfere with subject treatment, assessment or compliance with the protocol

          -  Planned or anticipated second kidney transplant

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