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CompletedNCT02966795ENDURANCE-5 6Updated Jul 30, 2021Results posted

A Study of of Glecaprevir/Pibrentasvir in Adults With Chronic Hepatitis C Virus (HCV) Genotype 5 or 6 Infection

A Phase 3 interventional study of Glecaprevir/Pibrentasvir in Hepatitis C Virus (HCV), sponsored by AbbVie. Completed at 25 sites in 9 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-07-30.

Sponsored by AbbVie · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
84
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

A Phase 3b, open-label, multicenter study to evaluate the efficacy and safety of glecaprevir/pibrentasvir for an 8- or 12-week treatment duration in participants with chronic hepatitis C virus (HCV) genotype (GT) 5 or 6 infection, with or without compensated cirrhosis respectively.

02

Conditions studied

  • Hepatitis C Virus (HCV)

Keywords

  • glecaprevir
  • pibrentasvir
  • compensated cirrhosis
  • non-cirrhotic
  • interferon (IFN)
  • pegylated interferon (pegIFN)
  • ribavirin (RBV)
  • sofosbuvir (SOF)
  • Sustained Virologic Response 12 weeks post dosing (SVR12)
  • Chronic
  • Genotype 5 or 6 Infection
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 84 is below the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

AbbVie is the lead sponsor of 953 studies on the registry; 136 are open to participants now.

Of its 350 completed or terminated interventional studies of FDA-regulated products, 210 (60%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Screening laboratory result indicating hepatitis C virus (HCV) GT5 or 6 infection.
  • Participant has a positive anti-HCV antibody (Ab) and plasma HCV ribonucleic acid (RNA) greater than or equal to 1000 IU/mL at Screening Visit.
  • Participant must be HCV treatment-naïve (i.e., has never received a single dose of any approved or investigational anti-HCV medication) or treatment-experienced (i.e., has failed prior interferon [IFN] or pegylated interferon [pegIFN] with or without ribavirin [RBV], or sofosbuvir [SOF] plus RBV with or without pegIFN therapy). Prior HCV treatment with any other approved or investigational medications is not allowed. Previous HCV treatment must have been completed greater than or equal to 2 months prior to screening.
  • Participant must be documented as having no cirrhosis or compensated cirrhosis.

Exclusion criteria

Exclusion Criteria:

  • Female participant who is pregnant, breastfeeding, or is considering becoming pregnant during the study or for approximately 30 days after the last dose of study drug.
  • Recent (within 6 months prior to study drug administration) history of drug or alcohol abuse that could preclude adherence to the protocol in the opinion of the investigator.
  • Positive test result at screening for hepatitis B surface antigen (HBsAg) or anti-human immunodeficiency virus antibody (HIV Ab).
  • HCV genotype performed during screening indicating co-infection with more than one HCV genotype.
  • History of severe, life-threatening or other significant sensitivity to any excipients of the study drug.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
84 participants (actual)

Study arms

  • Experimental
    Glecaprevir/Pibrentasvir for 8 Weeks

    Non-cirrhotic participants with hepatitis C virus genotype 5 or 6 received oral glecaprevir/pibrentasir (300 mg/120 mg) once daily with food for 8 weeks, according to label.

    Drug: Glecaprevir/Pibrentasvir

  • Experimental
    Glecaprevir/Pibrentasvir for 12 Weeks

    Participants with hepatitis C virus genotype 5 or 6 and compensated cirrhosis received oral glecaprevir/pibrentasir (300 mg/120 mg) once daily with food for 12 weeks, according to label.

    Drug: Glecaprevir/Pibrentasvir

Interventions

  • DrugGlecaprevir/Pibrentasvir

    Fixed-dose combination tablets taken orally once a day.

    Also known as: ABT-493/ABT-530, MAVYRET™

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What researchers measure

Primary outcomes

  1. Percentage of Participants With Sustained Virologic Response 12 Weeks Post Treatment (SVR12)

    SVR12 is defined as hepatitis C virus ribonucleic acid (HCV RNA) level less than the lower limit of quantification (LLOQ; less than 15 IU/mL) 12 weeks after the last actual dose of study drug.

    Time frame: 12 weeks after last dose of study drug (week 20 or 24 depending on the treatment regimen)

Secondary outcomes

  1. Percentage of Participants With On-treatment HCV Virologic Failure

    HCV virologic failure was defined as one of the following conditions: * confirmed HCV RNA ≥ 100 IU/mL after HCV RNA \< 15 IU/mL during the Treatment Period; or confirmed increase from nadir in HCV RNA (two consecutive HCV RNA measurements \> 1 log10 IU/mL above nadir) at any time point during the Treatment Period; or * HCV RNA ≥ 15 IU/mL at end of treatment with at least 6 weeks of treatment, where the HCV RNA value must be collected on or after Study Drug Day 36 and study drug duration ≥ 36 days.

    Time frame: 8 or 12 weeks (depending on the treatment regimen)

  2. Percentage of Participants With Relapse

    Relapse was defined as confirmed HCV RNA ≥ 15 IU/mL between the end of treatment and 12 weeks after the last dose of study drug among participants who completed treatment as planned with HCV RNA \< 15 IU/mL at the end of treatment and had post-treatment HCV RNA data; participants who had been shown to be re-infected were not considered to have relapsed.

    Time frame: End of treatment (week 8 or 12 depending on the treatment regimen) through 12 weeks after the end of treatment.

07

Results

Posted Jul 10, 2019

Participant flow

This study was conducted in 24 hospitals or clinics in Europe (Belgium, France), Oceania (Australia, New Zealand), North America (Canada, USA), South Africa, and southeast Asia (Singapore, Vietnam). Participants were screened between January 17, 2017, and December 26, 2017.

Participant flow — Overall Study
MilestoneGenotype 5-infectedGenotype 6-infected
Started2361
Completed2360
Not completed01
Withdrew: Patient left the country01

Outcome measures

PrimaryPercentage of Participants With Sustained Virologic Response 12 Weeks Post Treatment (SVR12)

SVR12 is defined as hepatitis C virus ribonucleic acid (HCV RNA) level less than the lower limit of quantification (LLOQ; less than 15 IU/mL) 12 weeks after the last actual dose of study drug.

Time frame:
12 weeks after last dose of study drug (week 20 or 24 depending on the treatment regimen)
Reported as:
Number · percentage of participants
Percentage of Participants With Sustained Virologic Response 12 Weeks Post Treatment (SVR12)
percentage of participantsGenotype 5-infectedGenotype 6-infected
Percentage of Participants With Sustained Virologic Response 12 Weeks Post Treatment (SVR12)95.7 (79.0 to 99.2)98.4 (91.3 to 99.7)
SecondaryPercentage of Participants With On-treatment HCV Virologic Failure

HCV virologic failure was defined as one of the following conditions: * confirmed HCV RNA ≥ 100 IU/mL after HCV RNA \< 15 IU/mL during the Treatment Period; or confirmed increase from nadir in HCV RNA (two consecutive HCV RNA measurements \> 1 log10 IU/mL above nadir) at any time point during the Treatment Period; or * HCV RNA ≥ 15 IU/mL at end of treatment with at least 6 weeks of treatment, where the HCV RNA value must be collected on or after Study Drug Day 36 and study drug duration ≥ 36 days.

Time frame:
8 or 12 weeks (depending on the treatment regimen)
Reported as:
Number · percentage of participants
Percentage of Participants With On-treatment HCV Virologic Failure
percentage of participantsGenotype 5-infectedGenotype 6-infected
Percentage of Participants With On-treatment HCV Virologic Failure0.0 (0.0 to 14.3)1.6 (0.3 to 8.7)
SecondaryPercentage of Participants With Relapse

Relapse was defined as confirmed HCV RNA ≥ 15 IU/mL between the end of treatment and 12 weeks after the last dose of study drug among participants who completed treatment as planned with HCV RNA \< 15 IU/mL at the end of treatment and had post-treatment HCV RNA data; participants who had been shown to be re-infected were not considered to have relapsed.

Time frame:
End of treatment (week 8 or 12 depending on the treatment regimen) through 12 weeks after the end of treatment.
Reported as:
Number · percentage of participants
Percentage of Participants With Relapse
percentage of participantsGenotype 5-infectedGenotype 6-infected
Percentage of Participants With Relapse4.3 (0.8 to 21.0)0.0 (0.0 to 6.0)

Adverse events

Collected over From first dose of study drug through 30 days after the last dose of study drug; 12 or 16 weeks depending on the treatment regimen.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Glecaprevir/Pibrentasvir0/84 (0%)5/84 (6%)26/84 (31%)
Most frequent serious events
Most frequent serious events
EventGlecaprevir/Pibrentasvir
ANAEMIABlood and lymphatic system disorders1/84
ESCHERICHIA PYELONEPHRITISInfections and infestations1/84
GASTRIC ULCER HELICOBACTERInfections and infestations1/84
GIARDIASISInfections and infestations1/84
PULMONARY TUBERCULOSISInfections and infestations1/84
VIRAL INFECTIONInfections and infestations1/84
MAJOR DEPRESSIONPsychiatric disorders1/84
Most frequent other events
Most frequent other events
EventGlecaprevir/Pibrentasvir
FATIGUEGeneral disorders11/84
HEADACHENervous system disorders11/84
DIZZINESSNervous system disorders6/84
NAUSEAGastrointestinal disorders5/84
INSOMNIAPsychiatric disorders5/84

Baseline characteristics

All enrolled participants

Age, Continuous
Age, Continuous(years)Genotype 5-infectedGenotype 6-infectedTotal
Median68.0 (24 to 76)54.0 (30 to 79)59.0 (24 to 79)
Age, Customized
Age, Customized(Participants)Genotype 5-infectedGenotype 6-infectedTotal
< 65 years84553
≥ 65 years151631
Sex: Female, Male
Sex: Female, Male(Participants)Genotype 5-infectedGenotype 6-infectedTotal
Female133245
Male102939
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Genotype 5-infectedGenotype 6-infectedTotal
Hispanic or Latino000
Not Hispanic or Latino236184
Unknown or Not Reported000
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Genotype 5-infectedGenotype 6-infectedTotal
White21425
Black or African American101
Asian15657
Multi-race011
Region of Enrollment
Region of Enrollment(participants)Genotype 5-infectedGenotype 6-infectedTotal
New Zealand134
Canada01313
Vietnam01212
Singapore044
Belgium808
United States01515
South Africa314
Australia088
France11516
Cirrhosis Status
Cirrhosis Status(Participants)Genotype 5-infectedGenotype 6-infectedTotal
Cirrhotic369
Non-cirrhotic205575
Prior HCV Treatment History
Prior HCV Treatment History(Participants)Genotype 5-infectedGenotype 6-infectedTotal
Naive195776
Experienced448

1 further baseline measures are reported on the registry.

08

Study locations

25 sites
  • Research & Education, Inc. /ID# 157042
    San Diego, California 92105, United States
  • Kaiser Permanente /ID# 157044
    San Diego, California 92154, United States
  • Zuckerberg San Francisco Gener /ID# 157040
    San Francisco, California 94110, United States
  • Cedars-Sinai Medical Center - West Hollywood /ID# 157045
    West Hollywood, California 90048, United States
  • Einstein Medical Center /ID# 157436
    Philadelphia, Pennsylvania 19141, United States
  • University of Washington /ID# 157041
    Seattle, Washington 98109, United States
  • Nepean Hospital Kingswood /ID# 157027
    Kingswood, New South Wales 2747, Australia
  • Royal Brisbane and Women's Hospital /ID# 157025
    Herston, Queensland 4029, Australia
  • Royal Melbourne Hospital /ID# 157024
    Parkville, Victoria 3050, Australia
  • AZ Groeninge /ID# 157029
    Kortrijk, 8500, Belgium
  • UZ Leuven /ID# 157030
    Leuven, 3000, Belgium
  • University of Calgary /ID# 157031
    Calgary, Alberta T2N 4Z6, Canada
  • Toronto General Hospital /ID# 157032
    Toronto, Ontario M5G 2C4, Canada
  • Hopital Haut-Lévêque /ID# 157035
    Pessac CEDEX, Gironde 33604, France
  • Hopital Beaujon /ID# 157028
    Clichy, Ile-de-France 92110, France
  • CHU Estaing /ID# 157034
    Clermont Ferrand, 63100, France
  • Hopital Saint Antoine /ID# 157036
    Paris, 75012, France
  • Auckland Clinical Studies Ltd /ID# 157033
    Auckland, 1010, New Zealand
  • National University Hospital /ID# 156855
    Singapore, 119074, Singapore
  • Singapore General Hospital /ID# 157037
    Singapore, 169608, Singapore
  • Wits Clinical Research Site /ID# 157038
    Johannesburg, Gauteng 2193, South Africa
  • University of Cape Town /ID# 157039
    Cape Town, Western Cape 7925, South Africa
  • National Hospital of Tropical Diseases /ID# 162282
    Hanoi, 100000, Vietnam
  • Hoa Hao Medic Co. Ltd. /ID# 162283
    Ho Chi Minh, 700000, Vietnam
  • Tropical Diseases Hospital /ID# 162281
    Ho Chi Minh, Vietnam
09

References and documents

Publications

  • Asselah T, Lee SS, Yao BB, Nguyen T, Wong F, Mahomed A, Lim SG, Abergel A, Sasadeusz J, Gane E, Zadeikis N, Schnell G, Zhang Z, Porcalla A, Mensa FJ, Nguyen K. Efficacy and safety of glecaprevir/pibrentasvir in patients with chronic hepatitis C virus genotype 5 or 6 infection (ENDURANCE-5,6): an open-label, multicentre, phase 3b trial. Lancet Gastroenterol Hepatol. 2019 Jan;4(1):45-51. doi: 10.1016/S2468-1253(18)30341-8. Epub 2018 Nov 2. PubMed 30393106 ↗
  • Brown RS Jr, Collins MA, Strasser SI, Emmett A, Topp AS, Burroughs M, Ferreira R, Feld JJ. Efficacy and Safety of 8- or 12 Weeks of Glecaprevir/Pibrentasvir in Patients with Evidence of Portal Hypertension. Infect Dis Ther. 2022 Apr;11(2):913-924. doi: 10.1007/s40121-022-00599-8. Epub 2022 Feb 17. PubMed 35174470 ↗

Study documents

  • Study protocol · Jul 28, 2017
  • Statistical analysis plan · May 15, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols and clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications.

Supporting information: Study protocol, Sap, Csr, Analytic code

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 30, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02966795
Lead sponsor
AbbVie
Responsible party
Sponsor
First posted
Nov 17, 2016
Start date
Jan 25, 2017
Primary completion
Jun 6, 2018
Completion
Aug 29, 2018
Results posted
Jul 10, 2019
Last update
Jul 30, 2021

Study contacts

AbbVie Inc.
study director · AbbVie

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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