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



Eligible Ages
Over 18 Years
Eligible Genders
Accepts Healthy Volunteers

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 2
Study Type
Intervention Model
Single Group Assignment
Primary Purpose
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Glecaprevir/Pibrentasvir (G/P)
In Step 1, participants will receive G/P FDC tablets to be taken orally once daily for 4 weeks. Any participant who experiences viral re-infection, suspected relapse, virologic failure, or undefined post-treatment HCV viremia may enter Step 2. In Step 2, participants may receive G/P FDC tablets orally once daily for 8-16 weeks. Some participants may also receive ribavirin (RBV) tablets orally twice daily. Alternate regimens are allowed in Step 2.
  • 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.
  • Drug: Ribavirin (RBV)
    Tablets containing 200 mg of ribavirin. RBV dosed according to weight-based and renal dosing tables in study protocol.

Recruiting Locations

Massachusetts General Hospital ACTG CRS (101)
Boston, Massachusetts 02114
Teri Flynn, RN, MSN, ANP

More Details

AIDS Clinical Trials Group

Study Contact

Detailed Description

The study will be conducted in two steps. In Step 1, participants will receive four weeks of treatment with G/P for acute HCV infection and 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/SVR12 (sustained virologic response 12 weeks post-treatment) visit may enter Step 2 for re-treatment. The remaining participants complete the study at Week 28 of Step 1. The study primary and secondary outcome measures pertain to Step 1. In Step 2, participants will be re-treated with G/P with or without ribavirin (RBV) for up to 16 weeks, and followed for 24 weeks post treatment. Post-treatment follow-up for Step 2 will include visits for SVR12 determination after re-treatment. In Step 1, study visits are 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 will have study visits during the re-treatment period, where the number of visits depends on the re-treatment, and visits at 12 and 24 weeks post treatment. Study visits may include physical examinations, clinical assessments, blood and urine collection, questionnaires, and HCV re-infection prevention counseling.


Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.