This was a Phase 2/3, multicenter study offered to participants who received at least one dose of an ABT-493- and/or ABT-530-containing regimen at any dose level in an eligible prior AbbVie Phase 2 or 3 study for the treatment of chronic HCV and elected to enroll in this study. The participant must have completed the follow-up period of the prior eligible AbbVie study. Participants were followed for a total of approximately 3 years after their last dose of DAA in the previous HCV clinical study. The 3 years were inclusive of any post-treatment period in the prior study, as well as any gaps between the end of the prior study and enrollment in this study.
