A Study to Evaluate the Efficacy and Safety of ABT-493/ABT-530 in Adults With Chronic Hepatitis C Virus (HCV) Genotype 2 Infection (ENDURANCE-2)

July 14, 2021 updated by: AbbVie

A Randomized, Double-Blind, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of ABT-493/ABT-530 in Adults With Chronic Hepatitis C Virus Genotype 2 Infection (ENDURANCE-2)

The purpose of this study is to evaluate the safety and efficacy of ABT-493/ABT-530 in adults with genotype 2 chronic hepatitis C virus (HCV) infection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
304

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 95 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Screening laboratory result indicating hepatitis C virus (HCV) Genotype-2 (GT2) infection.
  • Chronic HCV infection.
  • Subject must be HCV treatment-naïve (subject had never received a single dose of any approved or investigational regimen) or had failed prior interferon (IFN) or pegylated-interferon (pegIFN) ± ribavirin (RBV) or sofosbuvir (SOF) + RBV ± pegIFN therapy.
  • Subject must be non-cirrhotic.

Exclusion Criteria:

  • History of severe, life-threatening or other significant sensitivity to any excipient of the study drugs.
  • Female who is pregnant, planning to become pregnant during the study, or breastfeeding; or male whose partner is pregnant or planning to become pregnant during the study.
  • 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 coinfection with more than 1 HCV genotype.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Arm A DB Active Drug
ABT-493/ABT-530 (300 mg/120 mg) coformulated once daily (QD) for 12 weeks (double-blind [DB] treatment period)
Drug: ABT-493/ABT-530
Tablet; ABT-493 coformulated with ABT-530
Other Names:
  • ABT-493 also known as glecaprevir
  • ABT-530 also known as pibrentasvir
  • MAVYRET
Experimental: Arm B DB Placebo
Placebo for ABT-493/ABT-530 QD for 12 weeks (DB treatment period)
Drug: Placebo for ABT-493/ABT-530
tablet
Experimental: Arm B OL Active Drug
ABT-493/ABT-530 (300 mg/120 mg) coformulated once daily (QD) for 12 weeks (open-label [OL] treatment period)
Drug: ABT-493/ABT-530
Tablet; ABT-493 coformulated with ABT-530
Other Names:
  • ABT-493 also known as glecaprevir
  • ABT-530 also known as pibrentasvir
  • MAVYRET

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Sustained Virologic Response 12 Weeks Post-treatment (SVR12) in Arm A DB Active Drug Excluding Prior SOF + Ribavirin (RBV) ± pegIFN Failures: Noninferiority Analysis
Time Frame: 12 weeks after the last actual dose of active study drug
SVR12 was defined as plasma hepatitis C virus ribonucleic acid (HCV RNA) level less than the lower limit of quantification [<LLOQ]) 12 weeks after the last dose of active study drug. The primary efficacy endpoint was the noninferiority of the percentage of participants who achieved SVR12 in Arm A Double Blind (DB) Active Drug excluding prior sofosbuvir (SOF) + ribavirin (RBV) ± pegylatedinterferon (pegIFN) failures compared with the historical control rate for patients treated with the current standard of care (SOF + RBV for 12 weeks).
12 weeks after the last actual dose of active study drug

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With SVR12 in Arm A DB Active Drug Excluding Prior SOF + Ribavirin (RBV) ± pegIFN Failures: Superiority Analysis
Time Frame: 12 weeks after the last actual dose of active study drug
SVR12 was defined as plasma HCV RNA level <LLOQ 12 weeks after the last dose of study drug. The secondary efficacy endpoint was the superiority of the percentage of participants who achieved SVR12 in Arm A Double Blind (DB) Active Drug excluding prior SOF + RBV ± pegIFN failures compared with the historical control rate for patients treated with the current standard of care (SOF + RBV for 12 weeks). As pre-specified in the study protocol, the primary outcome measure and the secondary outcome measure are not tested independently from each other. Rather, the two measures are ranked in a fixed sequential testing procedure that only if success was demonstrated for the primary outcome (i.e. non-inferiority test of Arm A SVR12 rate to the standard of care) did we test the first secondary outcome (i.e. superiority test of Arm A SVR12 rate to the standard of care).
12 weeks after the last actual dose of active study drug
Percentage of Participants With On-treatment Virologic Failure in Arm A DB Active Drug Excluding Prior SOF + Ribavirin (RBV) ± pegIFN Failures
Time Frame: Up to Week 12 post baseline
On-treatment virologic failure was defined as confirmed increase of > 1 log(subscript)10(subscript) IU/mL above the lowest value of post-baseline HCV RNA during treatment; confirmed HCV RNA ≥ 100 IU/mL after HCV RNA < LLOQ during treatment, or HCV RNA ≥ LLOQ at end of treatment with at least 6 weeks of treatment.
Up to Week 12 post baseline
Percentage of Participants With Post-treatment Relapse in Arm A DB Active Drug Excluding Prior SOF + Ribavirin (RBV) ± pegIFN Failures
Time Frame: Between End of Treatment (Week 12) and 12 weeks after the last dose of Arm A DB active drug (up to Week 24)
Post-treatment relapse was defined as confirmed HCV RNA ≥ LLOQ between the end of DB treatment and 12 weeks after the last dose of active study drug among participants who completed treatment with HCV RNA levels < LLOQ at the end of treatment, excluding reinfection.
Between End of Treatment (Week 12) and 12 weeks after the last dose of Arm A DB active drug (up to Week 24)
Percentage of Participants With SVR12 in Arm A DB Active Drug With Prior SOF + RBV ± pegIFN Failure
Time Frame: 12 weeks after the last actual dose of active study drug
SVR12 was defined as HCV RNA level <LLOQ 12 weeks after the last dose of active study drug.
12 weeks after the last actual dose of active study drug

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
AbbVie

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 18, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 22, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 29, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 16, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 14, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • M15-464
  • 2015-002348-14 (EudraCT Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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