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FDA approves new indications for Gilead’s Harvoni

13 November 2015  •  Author: Victoria White

The US Food and Drug Administration (FDA) has approved Gilead’s Harvoni (ledipasvir/sofosbuvir) for expanded use in patients with genotype 4, 5 and 6 chronic hepatitis C virus (HCV) infection and in patients co-infected with HIV.

harvoni

In addition, Harvoni plus ribavirin (RBV) for 12 weeks was approved as an alternate therapy to 24 weeks of Harvoni for treatment-experienced, genotype 1 patients with cirrhosis.

The supplemental new drug application (sNDA) approval for HCV genotypes 4-6 was supported by data from the open-label trials 1119 and ELECTRON-2. Study 1119 evaluated Harvoni for 12 weeks in patients with HCV genotype 4 or 5 who were treatment-naïve and treatment-experienced with or without cirrhosis. Results showed that 93% of those with genotype 4 and 93% those with genotype 5 achieved SVR12. ELECTRON-2 evaluated Harvoni for 12 weeks in treatment-naïve or previously-treated patients with genotype 6 HCV infection with or without cirrhosis. In this study, 96% of patients achieved SVR12.

The sNDA approval for patients with HCV/HIV-1 co-infection was supported by data from the Phase 3 open-label ION-4 study, which evaluated Harvoni for 12 weeks for the treatment of genotypes 1 or 4 chronic HCV infection among patients co-infected with HIV. Data demonstrate that 96% of patients achieved SVR12. The study included HCV treatment-naïve and treatment-experienced patients, including patients with compensated cirrhosis. The majority of patients were taking one of three HIV antiretroviral (ARV) regimens: tenofovir disoproxil fumarate (TDF) and emtricitabine with efavirenz (Atripla), raltegravir or rilpivirine (Complera).

The sNDA approval of Harvoni with RBV for 12 weeks for genotype 1 treatment-experienced HCV patients with cirrhosis was supported by data from the Phase 2 SIRIUS study, which evaluated Harvoni plus RBV for 12 weeks or Harvoni without RBV for 24 weeks in genotype 1 HCV-infected patients with compensated cirrhosis who failed prior therapy. Ninety six percent of patients treated with Harvoni plus RBV for 12 weeks, and 97% of patients treated with Harvoni for 24 weeks without RBV, achieved SVR12.

Harvoni demonstrates high cure rates across a range of patient populations

“Harvoni – the first and only single-tablet regimen for the treatment of HCV – continues to demonstrate high cure rates and a tolerable side effect profile across a range of patient populations, including those who have historically been considered among the most difficult to cure,” said Norbert Bischofberger, Ph.D., Executive Vice President of Research and Development and Chief Scientific Officer at Gilead. “We are pleased that the Harvoni label and prescribing information now includes guidance for health care providers on its use in these important HCV patient populations.”

The European Medicines Agency also recently approved updates to the Harvoni label to allow for the use of shorter durations of therapy with Harvoni in combination with RBV. Specifically, these include the use of Harvoni plus RBV for 12 weeks in genotypes 1 and 4 HCV-infected patients with compensated cirrhosis, decompensated cirrhosis and post-liver transplant patients. The new label also includes data further supporting use of Harvoni for 12 weeks in patients with genotypes 1 or 4 who are co-infected with HIV and in patients who had previously failed treatment with sofosbuvir plus RBV with or without pegylated interferon.

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