Meeting the WHO hepatitis C virus elimination goal: Review of treatment in paediatrics.

Over 3 million paediatric patients globally and ~50 000 in the United States are estimated to be infected with HCV. Eradicating HCV in children helps prevent liver fibrosis, cirrhosis and hepatocellular carcinoma; reduces extra-hepatic manifestations of HCV; improves quality of life; and increases survival. The 2019 American Association for the Study of Liver Diseases-Infectious Diseases Society of America (AASLD-IDSA) guidelines now recommend direct-acting antiviral (DAA) treatment with an approved regimen for all children and adolescents with HCV infection aged ≥3 years. We conducted a descriptive review of the new DAA treatments for HCV infection in the paediatric population. Ledipasvir/sofosbuvir (LDV/SOF) and sofosbuvir with ribavirin (SOF/RBV) are now approved for those ≥3 years old under specific clinical scenarios; sofosbuvir/velpatasvir (SOF/VEL) is the only pangenotypic agent approved for those ≥6 years or ≥17 kg, and glecaprevir/pibrentasvir (GLE/PIB) is approved for adolescents ≥12 years old or ≥45 kg. These DAA regimens are well-tolerated and have comparable sustained virologic response rates at 12 weeks post-treatment compared to those reported in adults (close to 100%). The introduction of DAAs has significantly changed the landscape of HCV treatment in adults and children with HCV infection and has increased confidence that the 2030 World Health Organization elimination goal may be attainable. Further studies are warranted to determine the optimal treatment for children with HCV infection, including timing, regimen and duration. Additionally, with the recent paediatric approvals, long-term safety data are needed.