There is a great alternative #treatment for HCV genotypes 1, 4, or 6 patients who failed prior peg-interferon and ribavirin treatment known as Zepatier. "Overall, 92.4% of patients achieved SVR12 with 12 weeks of elbasvir/grazoprevir, and 94.2% of patients achieved SVR12 with 12 weeks of elbasvir/grazoprevir plus ribavirin."