Overview
11 DESCRIPTION MAVYRET contains glecaprevir, a HCV NS3/4A PI, and pibrentasvir a HCV NS5A inhibitor. MAVYRET is available as a fixed dose combination tablet or coated pellets in unit-dose packets for oral administration. Glecaprevir/Pibrentasvir Film-Coated Immediate Release Tablets Each tablet contains 100 mg of glecaprevir and 40 mg of pibrentasvir.
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Mechanism of Action MAVYRET is a fixed-dose combination of glecaprevir and pibrentasvir, which are direct-acting antiviral agents against the hepatitis C virus [see Microbiology ( 12.4 ) ] . 12.2 Pharmacodynamics Cardiac Electrophysiology The effect of doses up to glecaprevir 600 mg (2 times the recommended dosage) with doses up to pibrentasvir 240 mg (2 times the recommended dosage) on QTc interval was evaluated in an active-controlled (moxifloxacin 400 mg) thorough QT study. At 20-fold of glecaprevir and 5-fold of pibrentasvir therapeutic concentrations, the glecaprevir and pibrentasvir combination does not prolong the QTc interval to any clinically relevant extent. 12.
Indications
- 1 INDICATIONS AND USAGE MAVYRET is indicated for the treatment of adult and pediatric patients 3 years and older with acute or chronic hepatitis C virus (HCV) genotype 1, 2, 3, 4, 5 or 6 infection without cirrhosis or with compensated cirrhosis (Child-Pugh A). MAVYRET is indicated for the treatment of adult and pediatric patients 3 years and older with HCV genotype 1 infection, who previously have been treated with a regimen containing an HCV NS5A inhibitor or an NS3/4A protease inhibitor (PI), but not both [see Dosage and Administration ( 2.2 ) and Clinical Studies ( 14 )].
Common Doses
- 300 mg
- 120 mg
- 100 mg
- 40 mg
Dosage
2 DOSAGE AND ADMINISTRATION Testing Prior to the Initiation of Therapy: Test all patients for HBV infection by measuring HBsAg and anti-HBc. ( 2.1 ) See recommended treatment duration for patients 3 years and older in tables below. ( 2.2 ) Treatment-Naïve Patients 1 HCV Genotype Treatment Duration No Cirrhosis Compensated Cirrhosis (Child-Pugh A) 1, 2, 3, 4, 5, or 6 8 weeks 8 weeks Treatment-naïve patients are those who have not received treatment for the current infection.
Black Box Warning
WARNING: RISK OF HEPATITIS B VIRUS REACTIVATION IN PATIENTS COINFECTED WITH HCV AND HBV Test all patients for evidence of current or prior hepatitis B virus (HBV) infection before initiating treatment with MAVYRET. HBV reactivation has been reported in HCV/HBV coinfected patients who were undergoing or had completed treatment with HCV direct-acting antivirals and were not receiving HBV antiviral therapy. Some cases have resulted in fulminant hepatitis, hepatic failure, and death.
Contraindications
- 4 CONTRAINDICATIONS MAVYRET is contraindicated in patients with moderate or severe hepatic impairment (Child-Pugh B or C) or those with any history of prior hepatic decompensation [see Warnings and Precautions ( 5.2 ), Use in Specific Populations ( 8.7 ) and Clinical Pharmacology ( 12.3 )] . MAVYRET is contraindicated with atazanavir or rifampin [see Drug Interaction ( 7.3 ) and Clinical Pharmacology ( 12.3 )] . Patients with moderate or severe hepatic impairment (Child-Pugh B or C) or those with any history of prior hepatic decompensation. ( 4 , 5.
Side Effects
- 6 ADVERSE REACTIONS In subjects receiving MAVYRET, the most commonly reported adverse reactions (greater than 10%) are headache and fatigue. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact AbbVie Inc. at 1-800-633-9110 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of MAVYRET cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Interactions
- 7 DRUG INTERACTIONS Carbamazepine, efavirenz, and St. John’s wort may decrease concentrations of glecaprevir and pibrentasvir. Coadministration of carbamazepine, efavirenz containing regimens, and St. John’s wort with MAVYRET is not recommended. ( 5.3 ) Clearance of HCV infection with direct-acting antivirals may lead to changes in hepatic function, which may impact safe and effective use of concomitant medications. Frequent monitoring of relevant laboratory parameters (INR or blood glucose) and dose adjustments of certain concomitant medications may be necessary. ( 7.