• In cohort one, 100 percent of genotype 1, 2, 4, 5 and 6 treatment-naïve chronic HCV patients with compensated cirrhosis achieved SVR[12] with 8 weeks of MAVYRET per protocol analysis1
  • Cohort two of the study is ongoing, evaluating treatment-naïve genotype 3 (GT3) patients with compensated cirrhosis
  • MAVYRET is currently approved as an 8-week, pan-genotypic treatment for treatment-naïve patients without cirrhosis

NORTH CHICAGO, Ill., Nov. 13, 2018 /PRNewswire/ - AbbVie (NYSE: ABBV), a research-based global biopharmaceutical company, today announced new data for its pan-genotypic chronic hepatitis C virus (HCV) treatment, MAVYRETTM (glecaprevir/pibrentasvir), in treatment-naïve patients with compensated cirrhosis. Results from the Phase 3b EXPEDITION-8 study showed that with 8 weeks of MAVYRET, 100 percent (n=273/273) of genotype 1, 2, 4, 5 and 6 patients achieved a sustained virologic response 12 weeks after treatment (SVR12) per protocol analysis.

These data are being presented today as a late-breaking, oral presentation at The Liver Meeting® 2018 organized by the American Association for the Study of Liver Diseases (AASLD) in San Francisco, California.

"Current guidelines recommend a 12-week pan-genotypic regimen for people who have hepatitis C, are treatment-naïve and have compensated cirrhosis," said Robert S. Brown, Jr., M.D., the Gladys and Roland Harriman professor of medicine, Weill Cornell Medical College. "We are interested in investigating shorter treatment options, which may simplify care for patients with compensated cirrhosis while providing high cure rates."

This analysis is part of the ongoing Phase 3b EXPEDITION-8 study evaluating the safety and efficacy of MAVYRET in treatment-naïve chronic HCV patients with compensated cirrhosis across all major genotypes (GT1-6). The study includes two cohorts; cohort one with genotype 1, 2, 4, 5, 6 chronic HCV-infected patients, and cohort two with genotype 3 (GT3) chronic HCV-infected patients.2

"MAVYRET is already having a significant impact on people living with HCV. However, there are still groups of patients who may benefit from a shorter treatment option," said Janet Hammond, M.D., Ph.D., vice president, infectious diseases development, AbbVie. "We continue to investigate and understand the value of an 8-week treatment regimen for patients, something we recognize as an important step towards HCV elimination."

To date, no virologic failures have been reported in cohort one of the study and no patients have discontinued treatment due to adverse events.1 Adverse events (>5%) reported of the study populations include pruritus (9.6%), fatigue (8.6%), headache (8.2%) and nausea (6.4%).1 Six serious adverse events (2%) have occurred during the study, none of which were deemed to be related to glecaprevir/pibrentasvir.1 No new safety signals were identified in this study.

Data from the ongoing EXPEDITION-8 Phase 3b study will be presented as a late-breaking, oral presentation during the Late-breaking Abstract Oral Session II on November 13 at 8:30 a.m. PST.

MAVYRET is approved in the U.S. as a 12-week pan-genotypic treatment for treatment-naïve patients with compensated cirrhosis.3

Patients who achieve a sustained virologic response at 12 weeks post treatment (SVR12) are considered cured of hepatitis C.

About the EXPEDITION-8 Study1

EXPEDITION-8 is an ongoing non-randomized, single arm, open-label, multicenter Phase 3b study evaluating the safety and efficacy of glecaprevir/pibrentasvir in treatment-naïve GT1-6 chronic HCV patients with compensated cirrhosis. The study investigated two cohorts of patients:

  • Cohort one: treatment-naïve genotype 1, 2, 4, 5, 6 patients with compensated cirrhosis (n=280)
  • Cohort two: treatment-naïve GT3 patients with compensated cirrhosis (n=60)

The primary endpoint is the percentage of patients achieving SVR12 in a per-protocol analysis and the secondary endpoints are on-treatment virologic failure and relapse rates. For cohort one, 280 patients were enrolled and seven patients were excluded from the SVR12 per-protocol analysis (n=273); five patients were lost to follow up, and two patients received less than 8 weeks of treatment (one of these two patients achieved SVR12). Additional information on the clinical trials for MAVYRET is available at www.clinicaltrials.gov/

About MAVYRETTM (glecaprevir/pibrentasvir)

MAVYRET is approved by the U.S. Food and Drug Administration (FDA) for the treatment of chronic hepatitis C virus (HCV) infection in adults across all major genotypes (GT1-6). MAVYRET is a pan-genotypic, once-daily, ribavirin-free treatment that combines glecaprevir (100mg), an NS3/4A protease inhibitor, and pibrentasvir (40mg), an NS5A inhibitor, dosed once-daily as three oral tablets, taken with food.

MAVYRET is an 8-week, pan-genotypic option for patients without cirrhosis and who are new to treatment, who comprise the majority of people living with HCV. MAVYRET is also approved as a treatment for patients with specific treatment challenges, including those (GT1) not cured by prior treatment experience to either a protease inhibitor or NS5A inhibitor (but not both), and in patients with limited treatment options, such as those with severe chronic kidney disease (CKD) or those with genotype 3 chronic HCV. MAVYRET is a pan-genotypic treatment approved for use in patients across all stages of CKD.

Glecaprevir (GLE) was discovered during the ongoing collaboration between AbbVie and Enanta Pharmaceuticals (NASDAQ: ENTA) for HCV protease inhibitors and regimens that include protease inhibitors.

  • 1. Brown RS, Hezode C, Wang S, et al. Preliminary Efficacy and Safety of 8-Week Glecaprevir/Pibrentasvir in Patients with HCV Genotype 1–6 Infection and Compensated Cirrhosis: The EXPEDITION-8 Study. Presented at The Liver Meeting®, the Annual Meeting of the American Association for the Study of Liver Diseases (AASLD) in San Francisco, U.S., November 13, 2018.
  • 2. Brown RS, Hezode C, Wang S, et al. Preliminary Efficacy and Safety of 8-Week Glecaprevir/Pibrentasvir in Patients with HCV Genotype 1–6 Infection and Compensated Cirrhosis: The EXPEDITION-8 Study. Presented at The Liver Meeting®, the Annual Meeting of the American Association for the Study of Liver Diseases (AASLD) in San Francisco, U.S., November 13, 2018.
  • 3. MAVYRET tablets (glecaprevir/pibrentasvir) Prescribing Information. Chicago, U.S. AbbVie Inc