Title

Sofosbuvir/Velpatasvir: The First Pangenotypic Direct-Acting Antiviral Combination for Hepatitis C

Document Type

Article

Publication Date

1-1-2017

Abstract

Objectives: To review the pharmacology, efficacy, and safety of sofosbuvir/velpatasvir in the treatment of patients with hepatitis C virus (HCV) infection. Data Sources: A literature search through PubMed was conducted (June 2008 to August 2016) using the terms GS-5816, velpatasvir, and sofosbuvir. References from retrieved articles and the prescribing information were reviewed for any additional material. Study Selection/Data Extraction: The literature search was limited to human studies published in English. Phase I, II, and III studies of sofosbuvir/velpatasvir for HCV were identified. Data Synthesis: Sofosbuvir/velpatasvir is indicated for adult patients with chronic HCV genotype 1 through 6. It is given without ribavirin in patients with or without compensated cirrhosis and with ribavirin in patients who have decompensated cirrhosis. The ASTRAL-1 study demonstrated that sofosbuvir 400 mg plus velpatasvir 100 mg for 12 weeks was effective at achieving high sustained virological response (SVR12) rates in patients with HCV genotype 1, 2, 4, 5, or 6. The ASTRAL-2 and ASTRAL-3 studies demonstrated that the same regimen was effective at achieving high SVR12 rates in patients with HCV genotype 2 or 3. The ASTRAL-4 study demonstrated that the same regimen plus ribavirin was effective at achieving high SVR12 rate in patients with decompensated cirrhosis. The most common adverse reactions (≥10% of patients) associated with sofosbuvir/velpatasvir were headache and fatigue. Conclusions: Sofosbuvir/velpatasvir is safe and effective to treat HCV genotypes 1, 2, 3, 4, 5, and 6 in patients with or without compensated cirrhosis. The addition of ribavirin is recommended in patients with decompensated cirrhosis.

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