The American Gastroenterological Association (AGA) Institute released a practice update on managing patients with chronic hepatitis C virus (HCV) infection who have attained a sustained virologic response (SVR) after antiviral treatment. The clinical practice update was published in Gastroenterology.
Direct-acting antiviral (DAA) regimens for chronic HCV infection achieve high rates of SVR and have replaced interferon (IFN) in many countries. The current definition of SVR is undetectability of HCV RNA at 12 weeks after treatment (SVR12). Patients who achieve an SVR have a less than 1% risk of relapse and are considered cured.
Patients cured of HCV may experience reductions in the risk for death and hepatocellular carcinoma (HCC), as well as regression of liver changes including fibrosis or cirrhosis, but may still have higher rates of HCV-related complications than the general population. Patients who have already developed liver damage at the time of achieving SVR may be particularly at risk for future complications.