Sofosbuvir/velpatasvir and Resistance-associated Substitutions in HCV genotype 3

SOF/VEL and Resistance-associated Substitutions in HCV GT3

Alimentary Pharmacology & Therapeutics, June 21, 2018
J. von Felden; J. Vermehren; P. Ingiliz; S. Mauss; T. Lutz; K. G. Simon; H. W. Busch; A. Baumgarten; K. Schewe; D. Hueppe; C. Boesecke; J. K. Rockstroh; M. Daeumer; N. Luebke; J. Timm; J. Schulze zur Wiesch; C. Sarrazin; S. Christensen

Does the presence of resistance-associated substitutions impact the efficacy of therapy with sofosbuvir/velpatasvir with or without ribavirin in patients with HCV genotype 3?
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Abstract and Introduction
Abstract
Background Twelve weeks of the pangenotypic direct–acting antiviral (DAA) combination sofosbuvir/velpatasvir (SOF/VEL) was highly efficient in patients with hepatitis C virus (HCV) genotype 3 (GT3) infection in the ASTRAL–3 approval study. However, presence of resistance–associated substitutions (RASs) in the HCV nonstructural protein 5A (NS5A) was associated with lower treatment response.

Aim To assess the efficacy and safety of SOF/VEL ± ribavirin (RBV) and the impact of NS5A RASs and RBV use on treatment outcome in HCV GT3 infection in a real–world setting.

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