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Purpose: Glecaprevir/pibrentasvir (GLE/PIB) has been approved by the European Medicines Agency and by US Food and Drug Administration for the treatment of children and adolescents aged 3 to 12 years with chronic hepatitis C (CHC) virus infection. The aim of this study was to confirm the real-world effectiveness and safety of GLE/PIB pediatric formulations in children aged 3 to 12 years with CHC., Methods: This case series describes a pediatric population (3 to ≤12 years of age) treated with a weight-based dose of GLE/PIB pediatric formulation once daily for 8 weeks. The effectiveness end point was a sustained virologic response 12 weeks after the end of treatment. Safety was assessed on adverse events and clinical/laboratory data., Findings: Six patients (median age 6 years; interquartile range, 3 years) were enrolled and treated between March 2023 and December 2023. Genotype distribution was as follows: 4 of 6 genotype 1 (60%), 1 of 6 genotype 2 (20%), and 1 of 6 genotype 3 (20%). Median viral load at baseline was 541,000 IU/mL (interquartile range, 641,000 IU/mL). All (100%) patients completed treatment. Sustained virologic response (SVR) 12 weeks after the end of treatment was 100%. No virologic relapse or breakthrough was observed. No adverse events occurred., Implications: This study confirmed the real-life effectiveness and safety profile of an 8-week treatment with GLE/PIB for CHC in children aged 3 to 12 years., Competing Interests: Declaration of competing interest The authors have no conflicts of interest to declare., (Copyright © 2025 Elsevier Inc. All rights reserved.)

Hepatitis C virus (HCV) infection natural history and management in the pediatric population are still debated. We retrospectively evaluated the outcome of a HCV pediatric population managed at the Pediatric Infectious Disease Unit of Luigi Sacco Hospital (Milan, Italy) from January 1997 to January 2022 (median follow-up 10 years) and we focused on the role of new drugs and transient elastography. Fifty-seven patients were enrolled: 8 (14%) had a spontaneous clearance, 33 were treated (58%), 7 (12%) were not treated because they were under 12 years old and 9 were lost at follow-up. HCV RNA was undetectable in all treated patients at the end of therapy, after 12 weeks (SVR12) and for the rest of their follow-up. All patients treated underwent elastography before and 1 year after therapy. Median stiffness pretherapy was 5.6 kPa, and 9 patients (16%) had abnormal transient elastography (>7 kPa, median 8.7 kPa). Median stiffness after treatment in the abnormal group was 6.8 kPa. Direct-acting antiviral agents are a safe and effective therapy for HCV chronic infection in the pediatric population. Liver elastography is normal in many vertically infected children before 12 years, but, when abnormal, it shows a significant improvement after direct-acting antiviral agent treatment. Further studies are needed to evaluate the role of elastography at diagnosis and follow-up in children., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)