The Efficacy and Safety of ABT-493/ABT-530 in Adults With Chronic Hepatitis C Virus Genotype 4, 5, or 6 Infection (ENDURANCE-4)

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the effect of response to treatment by evaluating the percentage of subjects achieving a 12-week sustained virologic response (SVR12) after 12 weeks of treatment with ABT-493/ABT-530 and to evaluate the safety of the regimen in participants with chronic hepatitis C virus (HCV) genotype (GT) 4, 5, or 6 infection.

Official Title
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A Single-Arm, Open-Label Study to Evaluate the Efficacy and Safety of ABT-493/ABT-530 in Adults With Chronic Hepatitis C Virus Genotype 4, 5, or 6 Infection (ENDURANCE-4)

Conditions
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Hepatitis C Virus

Intervention / Treatment
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* Drug: ABT-493/ABT-530


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Screening laboratory result indicating hepatitis C virus (HCV) genotype (GT) 4, 5, or 6 infection. Chronic HCV infection. HCV treatment-naïve or treatment experienced (interferon [IFN] or pegylated interferon [pegIFN] with or without ribavirin [RBV]; sofosbuvir [SOF] plus RBV with or without pegIFN). Non-cirrhotic participants. 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). Co-infection with more than one HCV genotype.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: ABT-493/ABT-530<br>ABT-493/ABT-530 (300 mg/120 mg) coformulated once daily (QD) for 12 weeks. | Drug: ABT-493/ABT-530<br>* Tablet; ABT-493 coformulated with ABT-530<br>* Other names: MAVYRET;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants With Sustained Virologic Response 12 Weeks Post-treatment (SVR12) | 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 study drug. | 12 weeks after the last actual dose of study drug | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants With On-treatment Virologic Failure | On-treatment virologic failure was defined as confirmed increase of > 1 log(subscript)10(subscript) IU/mL above the lowest value 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. | Treatment weeks 1, 2, 4, 8, and 12 (end of treatment) or premature discontinuation from treatment | 
| Percentage of Participants With Post-treatment Relapse | Post-treatment relapse was defined as confirmed HCV RNA ≥ LLOQ between the end of treatment and 12 weeks after the last dose of study drug among participants who completed treatment with HCV RNA levels < LLOQ at the end of treatment, excluding reinfection. | From the end of treatment through 12 weeks after the last dose of study drug | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hepatitis C Genotype 4, Hepatitis C, Chronic Hepatitis C, Hepatitis C Genotype 6, Hepatitis C Genotype 5