The present invention generally features interferon-free therapies for the treatment of HCV. Preferably, the treatment is over a shorter duration of treatment, such as no more than 16, 12 or 8 weeks. In one aspect, the treatment comprises administering at least two direct acting antiviral agents and ribavirin to a subject with HCV infection, wherein the treatment lasts for 12 weeks and does not include administration of interferon, and said at least two direct acting antiviral agents comprise (a) Compound 1 or a pharmaceutically acceptable salt thereof and (b) Compound 2 or a pharmaceutically acceptable salt thereof. Further, additional compounds such as sofosbuvir, or its pharmaceutically acceptable salt may be used for retreatment of HCV patients who have failed glecaprevir and pibrentasvir combination therapy.
