Gilead Sciences, Inc. announced that it has submitted a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) for an investigational, once-daily single tablet regimen containing sofosbuvir 400 mg, velpatasvir 100 mg, and voxilaprevir 100 mg (SOF/VEL/VOX) for the treatment of direct-acting antiviral (DAA)-experienced chronic hepatitis C virus (HCV)-infected patients. The data submitted in the NDA support the use of the regimen for 12 weeks in DAA-experienced patients with genotype 1 to 6 HCV infection without cirrhosis or with compensated cirrhosis.
“The remaining clinical need to treat HCV patients is a safe and effective cure for patients who have failed previous therapy with DAA regimens, including those with NS5A inhibitors,” said Norbert Bischofberger, Ph.D., Executive Vice President of Research and Development and Chief Scientific Officer at Gilead. “SOF/VEL/VOX has the potential to fill that need by offering single tablet dosing and high cure rates across all HCV genotypes for patients with and without cirrhosis, who have failed prior treatment with other highly effective regimens.”
The NDA for SOF/VEL/VOX is based on data from two Phase 3 studies (POLARIS-1 and POLARIS-4), which evaluated 12 weeks of the fixed-dose combination in DAA-experienced patients with hepatitis C genotypes 1-6, including those who failed prior treatment with an NS5A-containing regimen. Of the 445 patients treated with SOF/VEL/VOX, 430 (97 percent) achieved the primary efficacy endpoint of SVR12. The NDA is further supported by two additional Phase 3 studies (POLARIS-2 and POLARIS-3) in which 611 DAA-naïve HCV-infected patients received 8 weeks of SOF/VEL/VOX. The most common adverse events among patients who received SOF/VEL/VOX were headache, fatigue, diarrhea and nausea. These data were presented at the American Association for the Study of Liver Diseases (AASLD) annual meeting in November 2016.
