The purpose of this study was to evaluate the efficacy of each treatment arm using a fixed dose combination (FDC) of EBR/GZR as assessed by the percentage of participants achieving sustained virologic response, defined as HCV ribonucleic acid (RNA) <Lower Limit of Quantitation (LLOQ) 12 weeks after the end of all study therapy (SVR12). This study also evaluated the safety and tolerability of EBR/GZR.