- HCV treatment-naïve or unsuccessful treatment with pegylated or standard IFN alfa with or without RBV. NOTE: No prior exposure to HCV NS3/4A PI (including but not limited to TVR, BOC, simeprevir), NS5A inhibitors (including but not limited to daclatasvir or ledipasvir), NS5B NNI or NI inhibitors (including but not limited to sofosbuvir) is allowed.