This multicenter study evaluates the effectiveness and safety of a 12-week regimen of sofosbuvir/velpatasvir/voxilaprevir in patients with chronic hepatitis C who relapsed after prior direct-acting antiviral therapy. The study assesses the rate of sustained virologic response after treatment, along with changes in liver function and overall safety. It also explores whether clinical factors such as liver cirrhosis, viral genotype, and the use of ribavirin influence treatment outcomes, aiming to better define this regimen as a salvage therapy option.