Study to Evaluate Adverse Events and Change in Disease Activity in Adult and Adolescent Participants With Acute Hepatitis C Virus (HCV) Infection on Treatment With Oral Tablets of Glecaprevir (GLE)/Pibrentasvir (PIB)

A Multicenter, Single-Arm Prospective Study to Evaluate Safety and Efficacy of GLE/PIB 8-Week Treatment in Adults and Adolescents With Acute Hepatitis C Virus (HCV) Infection

HCV infection is a global health problem. HCV mainly affects liver cells and causes the liver to become inflamed and damaged. This study will evaluate how safe and effective glecaprevir/pibrentasvir (GLE/PIB) is in adult and adolescent participants with acute HCV infection.

GLE/PIB is an approved drug for the treatment of chronic HCV. Around 283 participants at least 12 years of age with acute HCV Infection will be enrolled in approximately 70 sites worldwide.

Participants will receive oral tablets of GLE/PIB once daily (QD) for 8 weeks and will be followed for 12 weeks after the end of treatment.

There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, monitoring for side effects and completing questionnaires.

Inclusion Criteria:

• Evidence of acute HCV infection prior to enrollment, defined as a physician diagnosis of acute HCV infection, quantifiable HCV ribonucleic Acid (RNA) at screening, and at least 1 of the following:

  • Negative anti-HCV antibody, HCV RNA and/or HCV core antigen followed by a positive HCV RNA or HCV core antigen all within an 8-month period prior to screening; OR
  • Negative anti-HCV antibody, HCV RNA and/or HCV core antigen followed by a positive HCV RNA or HCV core antigen all within an 11-month period prior to screening; AND risk behavior for HCV infection within 6 months prior to positive HCV RNA or HCV core antigen; OR
  • Clinical signs and symptoms compatible with acute hepatitis [alanine aminotransferase (ALT) > 5 × upper limit of normal (ULN) and/or jaundice] in the absence of a history of chronic liver disease or other cause of acute hepatitis and positive HCV RNA or HCV core antigen all within an 8-month period prior to screening; AND risk behavior for HCV infection within 6 months prior to positive HCV RNA or HCV core antigen; OR
  • Negative anti-HCV antibody with a positive HCV RNA or HCV core antigen within a 5-month period prior to screening.

• Absence of hepatocellular carcinoma (HCC), for participants with cirrhosis, or with indeterminate cirrhosis status, as indicated by a negative ultrasound, computed tomography (CT) scan or magnetic resonance imaging (MRI) within 3 months prior to screening or a negative ultrasound at screening. Participant who has a positive ultrasound result suspicious of HCC followed by a subsequent negative CT scan or MRI or biopsy result will be eligible for the study.

• Participants documented as having no cirrhosis or as having compensated cirrhosis.

Exclusion Criteria:

• Participants with prior treatment, including interferon for this HCV infection.
• History of liver decompensation.