Glecaprevir / Pibrentasvir
Brand names: Maviret
A fixed-dose combination of two direct-acting antivirals used as a pangenotypic, interferon-free oral regimen for the treatment of chronic hepatitis C infection.
Adult dose
Dose adjustments
No dose adjustment is required in patients with any degree of renal impairment, including patients on dialysis.
Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- Hypersensitivity to the active substances or to any of the excipients
- Severe hepatic impairment (Child-Pugh C)
- Concomitant use with atazanavir-containing products
- Concomitant use with atorvastatin or simvastatin
- Concomitant use with dabigatran etexilate
- Concomitant use with ethinyl oestradiol-containing products
- Concomitant use with strong P-gp and CYP3A inducers (e.g. rifampicin, carbamazepine, St John's wort, phenobarbital, phenytoin, primidone)
Side effects
- Headache (very common)
- Fatigue (very common)
- Diarrhoea (common)
- Nausea (common)
- Asthenia (common)
- Elevation in total bilirubin (common)
- Angioedema (uncommon); pruritus (frequency not known)
Interactions
- Glecaprevir and pibrentasvir are inhibitors of P-glycoprotein (P-gp), breast cancer resistance protein (BCRP) and organic anion transporting polypeptide (OATP) 1B1/3 — co-administration may increase plasma concentrations of substrates of these transporters (e.g. dabigatran)
- Strong P-gp and CYP3A inducers (rifampicin, carbamazepine, St John's wort, phenobarbital, phenytoin, primidone) — contraindicated
- Atazanavir-containing products — contraindicated; for other HIV antivirals refer to SPC section 4.5
- Atorvastatin and simvastatin — contraindicated
- Dabigatran etexilate — contraindicated
- Ethinyl oestradiol-containing products — contraindicated
- Co-administration is not recommended with several further medicinal products detailed in SPC section 4.5 (section truncated in the fetched source — check the full SPC)
Clinical monograph
How it works
Glecaprevir inhibits the HCV NS3/4A protease and pibrentasvir inhibits the NS5A protein, together blocking viral RNA replication and virion assembly across all major genotypes.
Prescribing in practice
- Contraindicated in decompensated (Child-Pugh C) hepatic impairment and not recommended in Child-Pugh B, owing to a risk of hepatic decompensation and increased exposure.
- Screen for hepatitis B before starting, as HBV reactivation has been reported during and after direct-acting antiviral therapy.
- Numerous drug interactions occur, including with certain statins, ethinylestradiol-containing products and strong P-glycoprotein/CYP3A inducers, so review concomitant medicines against the SPC.
Monitoring
Assess hepatitis B status and baseline liver function before treatment, and monitor for HBV reactivation and confirm cure with a sustained virological response test after completing the course.
Counselling the patient
- Take the tablets with food at the same time each day and do not miss doses, as adherence is important for cure.
- Tell your team about all other medicines, including any bought over the counter or herbal remedies, before and during treatment.
Evidence & guidelines
Pangenotypic direct-acting antiviral regimens are recommended by NICE and have achieved high sustained virological response rates across hepatitis C genotypes in registration trials.
Reference: EASL Recommendations on Treatment of Hepatitis C 2022; MHRA SPC Maviret; Zeuzem et al. NEJM 2018 (ENDURANCE-1); Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- Maddrey Discriminant Function (Alcoholic Hepatitis) · Alcoholic Liver Disease
- Lille Model (Steroid Response in Alcoholic Hepatitis) · Alcoholic Liver Disease
- FIB-4 Index · Liver Fibrosis
- Maddrey's Discriminant Function for Alcoholic Hepatitis · Hepatology
- Lille Model for Alcoholic Hepatitis · Hepatology
- AST to Platelet Ratio Index (APRI) · Hepatology