Gilead Sciences, Inc. (GILD) Announces Update on Phase 3 Study of Oral Fixed-Dose Combination of Sofosbuvir and Ledipasvir for Genotype 1 Hepatitis C Patients
3/26/2013 11:14:45 AM
FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq: GILD) today provided an update on ION-1, a Phase 3 clinical trial evaluating a once-daily fixed-dose combination of the nucleotide sofosbuvir and the NS5A inhibitor ledipasvir with and without ribavirin (RBV) for 12 or 24 weeks among treatment-naïve genotype 1 patients with hepatitis C virus (HCV) infection (n=800). A planned review by the study's Data and Safety Monitoring Board (DSMB) of safety data from 200 patients in all four arms and of SVR4 rates (sustained virologic response four weeks after completion of therapy) from 100 patients in the two 12-week duration arms concluded that the trial should continue without modification. This recommendation is based upon the observed SVR4 rates exceeding the predefined threshold of 60 percent and the absence of significant safety issues. Enrollment of the remaining 600 patients in ION-1 is now underway.
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