A Study to Assess Resistance and Durability of Response to ABT-493 and/or ABT-530

A Follow-up Study to Assess Resistance and Durability of Response to AbbVie Direct-Acting Antiviral Agent (DAA) Therapy (ABT-493 and/or ABT-530) in Subjects Who Participated in Phase 2 or 3 Clinical Studies for the Treatment of Chronic Hepatitis C Virus (HCV) Infection

This was a long-term follow-up study to evaluate the durability of sustained virologic response (SVR), persistence of direct-acting antiviral agent (DAA) resistance, and clinical outcomes for participants who received glecaprevir (ABT-493) and/or pibrentasvir (ABT-530) in prior AbbVie Phase 2 or 3 clinical studies for the treatment of chronic hepatitis C virus (HCV) infection.

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.

Inclusion Criteria:

1. Participant is male or female 18 years of age or older
2. Participant has received at least one dose of an ABT-493- and/or ABT- 530 containing regimen in a prior AbbVie hepatitis C virus (HCV) Phase 2 or 3 study
3. The interval between the last dose of the AbbVie direct-acting antiviral agent (DAA) therapy from the previous clinical study and enrollment in Study M13-576 must be no longer than 2 years for subjects who have not been retreated. Participants who have been treated with a commercially available anti-HCV treatment may be enrolled greater than 2 years after the last dose of the AbbVie DAA therapy from the previous clinical study.
4. Participant must voluntarily sign and date the informed consent form approved by an Independent Review Board or Ethics Committee prior to the initiation of any study-specific procedures.
5. Participant completed the post-treatment period of an eligible prior study.

Exclusion Criteria:

1. The investigator considers the participant unsuitable for the study for any reasons (e.g., failure to comply with study procedures in the prior AbbVie clinical study).
2. Receipt of any investigational HCV antiviral treatment after receiving ABT-493 and/or ABT-530 in the prior study.
3. Participants who experienced non-virologic treatment failure due to premature discontinuation of study drug in prior study of ABT-493/ABT-530.
4. Participation in AbbVie's Study M15-942 protocol for re-treatment for virologic failure in the prior Phase 2 or 3 study.