Study of Efficacy and Safety of Grazoprevir (MK-5172) + Elbasvir (MK-8742) With or Without Ribavirin for Participants With Hepatitis C Genotype 1, 4, or 6 Infections Who Have Failed Prior Treatment With Pegylated Interferon + Ribavirin (MK-5172-068)
Conditions
Interventions
- DRUG: Grazoprevir + Elbasvir
- DRUG: Ribavirin
Sponsor
Merck Sharp & Dohme LLC