FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq: GILD) today announced topline results from a Phase 3 clinical trial (GS-US-337-0113) in Japan evaluating the investigational once-daily fixed-dose combination of the NS5A inhibitor ledipasvir (LDV) 90 mg and the nucleotide analog polymerase inhibitor sofosbuvir (SOF) 400 mg, with and without ribavirin (RBV), for the treatment of genotype 1 chronic hepatitis C virus (HCV) infection. Among patients receiving 12 weeks of LDV/SOF without RBV, 100 percent (n=83/83) of treatment-naïve and 100 percent (n=88/88) of treatment-experienced patients achieved a sustained virologic response 12 weeks after completing therapy (SVR12). Among patients receiving LDV/SOF plus RBV, 96 percent (n=80/83) of treatment-naïve and 100 percent of treatment-experienced patients (n=87/87) achieved SVR12. Across all arms of the study, patients with cirrhosis achieved a 99 percent (n=75/76) SVR12. The study met its primary endpoint of superiority compared to a predefined historical SVR12 rate. Patients who achieve SVR12 are considered cured of HCV infection.
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