Glecaprevir/Pibrentasvir Fixed-dose Combination Treatment for Acute Hepatitis C Virus Infection

Purpose

The purpose of this study was to assess the efficacy of a fixed dose combination (FDC) of glecaprevir/pibrentasvir (G/P) given for 4 weeks for treatment of acute hepatitis C (HCV), with or without HIV-1 coinfection.

Conditions

  • Hepatitis C Infection
  • HIV Infection

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Acute HCV infection (or reinfection) within 24 weeks prior to entry - Detectable HCV RNA at the screening visit

Exclusion Criteria

  • Any HCV treatment during the current acute HCV infection episode - Known preexisting cirrhosis - Acute HIV-1 infection - Presence of active or acute AIDS-defining opportunistic infections, active serious infection (other than HIV-1 or HCV), active hepatitis B virus (HBV) or active hepatitis A virus (HAV) - Chronic use of systemically administered immunosuppressive agents - History of solid organ transplantation - History of conditions that could interfere with the absorption of the study drug - Concurrent use of prohibited medications - Known hypersensitivity to glecaprevir or pibrentasvir, the metabolites, or parts of the formulation - Females who are pregnant or breastfeeding - Males with pregnant female partner

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Glecaprevir/Pibrentasvir (G/P)
Participants were assigned to receive G/P FDC tablets to be taken orally once daily for 4 weeks (Step 1). Participants who experienced HCV re-infection, suspected relapse, virologic failure, or undefined post-treatment viremia in Step 1 were offered to enter Step 2 for re-treatment. HCV re-treatment regimens may have included G/P FDC tablets orally once daily for 8-16 weeks, or alternate regimens through clinical care.
  • Drug: Glecaprevir/Pibrentasvir (G/P)
    Fixed-dose combination (FDC) tablets containing 100 mg of glecaprevir and 40 mg of pibrentasvir; administered as 3 tablets orally.
    Other names:
    • Mavyret

More Details

Status
Completed
Sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections

Study Contact

Detailed Description

The study was conducted in two steps. In Step 1, participants received four weeks of treatment with G/P for acute HCV infection and were then followed 24 weeks post treatment. Participants with HCV recurrence (reinfection, suspected relapse or undefined post-treatment viremia) or HCV virologic failure before or at the Step 1 Week 16 entered Step 2 and were offered HCV re-treatment. The remaining participants were followed in Step 1 for a total of 28 weeks. The study primary and secondary outcome measures pertain to Step 1. In Step 2, participants were re-treated for up to 16 weeks (G/P or alternate regimen through standard of care), and were followed for 24 weeks post treatment. This post-treatment follow-up included a visit for the determination of HCV sustained virologic response (SVR12) after re-treatment. All summaries of data captured from Step 2 are pooled across HCV re-treatment regimens, as specified in the Statistical Analysis Plan. In Step 1, study visits were scheduled at study entry, weeks 1 and 2 (on-treatment), week 4 (treatment discontinuation), and weeks 8, 12, 16 and 28 (post-treatment follow-up). In Step 2, participants had study visits during the re-treatment period, where the number of visits depended on the re-treatment regimen, and at weeks 12 and 24 post treatment. Study visits included physical examinations, clinical assessments, blood and urine collection, questionnaires, and HCV re-infection prevention counseling.