BACKGROUND & AIMS: Eight-week glecaprevir/pibrentasvir leads to high rates of sustained virological response at post-treatment week 12 (SVR12) across HCV genotypes (GT) 1-6 in treatment-naïve patients without cirrhosis. We evaluated glecaprevir/pibrentasvir once daily for 8 weeks in treatment-naïve patients with compensated cirrhosis. METHODS: EXPEDITION-8 was a single-arm, multicenter, phase IIIb trial. The primary and key secondary efficacy analyses were to compare the lower bound of the 95% CI of the SVR12 rate in i) patients with GT1,2,4-6 in the per protocol (PP) population, ii) patients with GT1,2,4-6 in the intention-to-treat (ITT) population, iii) patients with GT1-6 in the PP population, and iv) patients with GT1-6 in the ITT population, to pre-defined efficacy thresholds based on historical SVR12 rates for 12 weeks of glecaprevir/pibrentasvir in the same populations. Safety was also assessed. RESULTS: A total of 343 patients were enrolled. Most patients were male (63%), white (83%), and had GT1 (67%). The SVR12 rate in patients with GT1-6 was 99.7% (n/N = 334/335; 95%CI 98.3-99.9) in the PP population and 97.7% (n/N = 335/343; 95% CI 96.1-99.3) in the ITT population. All primary and key secondary efficacy analyses were achieved. One patient (GT3a) experienced relapse (0.3%) at post-treatment week 4. Common adverse events (≥5%) were fatigue (9%), pruritus (8%), headache (8%), and nausea (6%). Serious adverse events (none related) occurred in 2% of patients. No adverse event led to study drug discontinuation. Clinically significant laboratory abnormalities were infrequent. CONCLUSIONS: Eight-week glecaprevir/pibrentasvir was well tolerated and led to a similarly high SVR12 rate as the 12-week regimen in treatment-naïve patients with chronic HCV GT1-6 infection and compensated cirrhosis. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03089944. LAY SUMMARY: This study was the first to evaluate an 8-week direct-acting antiviral (DAA) regimen active against all major types of hepatitis C virus (HCV) in untreated patients with compensated cirrhosis. High virological cure rates were achieved with glecaprevir/pibrentasvir across HCV genotypes 1-6, and these high cure rates did not depend on any patient or viral characteristics present before treatment. This may simplify care and allow non-specialist healthcare professionals to treat these patients, contributing to global efforts to eliminate HCV.

• Klíčová slova
• Chronic HCV infection, Compensated cirrhosis, Direct-acting antiviral, Glecaprevir/pibrentasvir, HCV elimination, Hepatitis C virus, Pangenotypic, Short duration,
• MeSH
• antivirové látky aplikace a dávkování   škodlivé účinky   MeSH
• benzimidazoly aplikace a dávkování   škodlivé účinky   MeSH
• chinoxaliny aplikace a dávkování   škodlivé účinky   MeSH
• chronická hepatitida C krev   komplikace   farmakoterapie   virologie   MeSH
• cyklopropany aplikace a dávkování   škodlivé účinky   MeSH
• fixní kombinace léků MeSH
• genotyp * MeSH
• Hepacivirus enzymologie   genetika   MeSH
• jaterní cirhóza komplikace   farmakoterapie   MeSH
• kyseliny aminoisomáselné aplikace a dávkování   škodlivé účinky   MeSH
• leucin aplikace a dávkování   škodlivé účinky   analogy a deriváty   MeSH
• lidé středního věku MeSH
• lidé MeSH
• makrocyklické laktamy aplikace a dávkování   škodlivé účinky   MeSH
• polymorfismus genetický MeSH
• prolin aplikace a dávkování   škodlivé účinky   analogy a deriváty   MeSH
• pyrrolidiny aplikace a dávkování   škodlivé účinky   MeSH
• RNA virová krev   genetika   MeSH
• senioři MeSH
• setrvalá virologická odpověď MeSH
• sulfonamidy aplikace a dávkování   škodlivé účinky   MeSH
• virové nestrukturální proteiny genetika   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky, fáze III MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH
• Názvy látek
• antivirové látky MeSH
• benzimidazoly MeSH
• chinoxaliny MeSH
• cyklopropany MeSH
• fixní kombinace léků MeSH
• glecaprevir MeSH Prohlížeč
• kyseliny aminoisomáselné MeSH
• leucin MeSH
• makrocyklické laktamy MeSH
• NS-5 protein, hepatitis C virus MeSH Prohlížeč
• NS3 protein, hepatitis C virus MeSH Prohlížeč
• pibrentasvir MeSH Prohlížeč
• prolin MeSH
• pyrrolidiny MeSH
• RNA virová MeSH
• sulfonamidy MeSH
• virové nestrukturální proteiny MeSH