Monday, January 4, 2016

Gilead/FDA Grants Priority Review for Sofosbuvir/Velpatasvir - To Treat HCV Genotype 1-6

Gilead Announces U.S. FDA Priority Review Designation for Sofosbuvir/Velpatasvir for Treatment of All Genotypes of Chronic Hepatitis C Infection

‏Date(s): 4-Jan-2016 4:30 PM

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-- Final FDA Decision Anticipated by June 28, 2016 --

FOSTER CITY, Calif.--(BUSINESS WIRE)--Jan. 4, 2016-- Gilead Sciences, Inc. (Nasdaq: GILD) today announced that the U.S. Food and Drug Administration (FDA) has granted priority review to the company's New Drug Application (NDA) for an investigational, once-daily fixed-dose combination of the nucleotide analog polymerase inhibitor sofosbuvir (SOF), approved as Sovaldi® in December 2013, and velpatasvir (VEL), an investigational pan-genotypic NS5A inhibitor, for the treatment of chronic genotype 1-6 hepatitis C virus (HCV) infection. Gilead filed the NDA for SOF/VEL on October 28, 2015, and FDA has set a target action date under the Prescription Drug User Fee Act (PDUFA) of June 28, 2016.

The FDA has assigned SOF/VEL a Breakthrough Therapy designation, which is granted to investigational medicines that may offer major advances in treatment over existing options. The NDA for SOF/VEL is supported by data from four Phase 3 ASTRAL trials, which evaluated the fixed-dose combination in hepatitis C genotypes 1-6. A marketing application for SOF/VEL is also under review in the European Union, and was validated by the European Medicines Agency (EMA) in December. The SOF/VEL fixed-dose combination is an investigational product and its safety and efficacy have not been established.

Also See
2016 Hepatitis Newsletters: Top Research Articles, News, Interviews And A Look Back At 2015 HCV Headlines
Top News Articles
The New England Journal Of Medicine
Sofosbuvir–Velpatasvir for HCV Genotypes 1, 2, 4, 5, and 6
December 31, 2015 | J.J. Feld and Others
Published Online: November 16, 2015
In this phase 3 study involving patients with HCV genotype 1, 2, 4, 5, or 6 infection, including those with compensated cirrhosis, treatment with 12 weeks of sofosbuvir and velpatasvir resulted in a sustained virologic response in 99% of patients.
(View Video.) Key Points - A Simple HCV Treatment.

Sofosbuvir and Velpatasvir for HCV Genotype 2 and 3 Infection
Here, we present the results of two randomized, controlled, phase 3 trials (ASTRAL-2 and ASTRAL-3) in which treatment with a fixed-dose combination tablet of sofosbuvir and velpatasvir for 12 weeks was compared with standard treatment with sofosbuvir plus ribavirin for 12 or 24 weeks in patients who had received prior treatment for HCV genotype 2 or 3 infection and in those who had not received such treatment, including those with compensated cirrhosis.

Sofosbuvir and Velpatasvir for HCV in Patients with Decompensated Cirrhosis
The NS5B nucleotide inhibitor sofosbuvir is approved for the treatment of HCV infection in combination with other agents.13,14 Velpatasvir (formerly known as GS-5816, Gilead Sciences) is an investigational inhibitor of the HCV NS5A protein with antiviral activity against all HCV genotypes.15-17 The combination of velpatasvir and sofosbuvir with or without ribavirin provided high rates of sustained virologic response in patients with all HCV genotypes in phase 2 clinical trials.18,19 In the phase 3 ASTRAL-1, ASTRAL-2, and ASTRAL-3 trials (now published in theJournal),20,21 treatment with sofosbuvir–velpatasvir in a fixed-dose combination tablet for 12 weeks resulted in high rates of sustained virologic response among patients with HCV genotypes 1 through 6 without cirrhosis or with compensated cirrhosis.

About Gilead Sciences
Gilead Sciences is a biopharmaceutical company that discovers, develops and commercializes innovative therapeutics in areas of unmet medical need. The company's mission is to advance the care of patients suffering from life-threatening diseases worldwide. Gilead has operations in more than 30 countries worldwide, with headquarters in Foster City, California.

Forward-Looking Statement
This press release includes forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that are subject to risks, uncertainties and other factors. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. The reader is cautioned not to rely on these forward-looking statements. These and other risks are described in detail in Gilead's Quarterly Report on Form 10-Q for the quarter ended September 30, 2015, as filed with the U.S. Securities and Exchange Commission. All forward-looking statements are based on information currently available to Gilead, and Gilead assumes no obligation to update any such forward-looking statement.

For more information on Gilead Sciences, please visit the company's website at, follow Gilead on Twitter (@GileadSciences) or call Gilead Public Affairs at 1-800-GILEAD-5 or 1-650-574-3000.

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Source: Gilead Sciences, Inc
Gilead Sciences, Inc.
Patrick O'Brien, 650-522-1936 (Investors)
Amy Flood, 650-522-5643 (Media)

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