for people ages 3 years and up (full criteria)
at San Francisco, California and other locations
study started
estimated completion



This Registry will enroll adolescent and pediatric participants who received at least one Gilead Hepatitis C Virus (HCV) direct acting antiviral (DAA) while participating in a Gilead-sponsored chronic hepatitis C clinical trial. The primary objective of this Registry is to determine the long-term safety of anti-HCV regimens in the pediatric population. Secondary objectives of this Registry are to determine whether subsequent detection of HCV RNA in participants who relapse following sustained virologic response (SVR) represents the re-emergence of pre-existing virus, the development of resistance mutations, or whether it is due to re-infection, and to characterize resistance mutations and the persistence of resistance mutations in pediatric participants who did not achieve SVR. Once enrolled, participants will be followed for up to 5 years.

Official Title

A Long Term Follow-up Registry for Adolescent and Pediatric Subjects Who Received a Gilead Hepatitis C Virus Direct Acting Antiviral (DAA) in Gilead-Sponsored Chronic Hepatitis C Infection Trials


Hepatitis C Virus Infection, Infections, Communicable Diseases, Hepatitis A, Hepatitis C, Hepatitis C, Chronic, Hepatitis, Sofosbuvir, Ledipasvir, sofosbuvir drug combination, Sofosbuvir-velpatasvir drug combination, Ledipasvir, Velpatasvir, Sofosbuvir (SOF), Ledipasvir/Sofosbuvir (LDV/SOF), Sofosbuvir/Velpatasvir (SOF/VEL), Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX)


You can join if…

Open to people ages 3 years and up

  • Have previously participated in a Gilead-sponsored chronic hepatitis C study as an adolescent or pediatric participant and received at least one Gilead HCV direct acting antiviral
  • Parent or legal guardian able to provide written informed consent OR individual is able to provide written informed consent prior to any study procedures and willing to comply with study requirements as determined by institutional review board (IRB)/independent ethics committee(IEC)/local requirements and Investigator's discretion.
  • Individual is able to provide written assent, if they have the ability to read and write, as determined by IRB/IEC/local requirements and Investigator's discretion

You CAN'T join if...

  • Individual is currently receiving or plans to initiate a new course of hepatitis C therapy including any investigational drug or device during the course of the follow-up Registry.
  • History of clinically-significant illness or any other major medical disorder that may interfere with the individual's follow-up, assessments or compliance with the protocol.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.


  • University of California San Francisco
    San Francisco California 94158 United States
  • Children's Hospital Los Angeles, Div. of Research Immunology/BMT
    Los Angeles California 90027 United States


in progress, not accepting new patients
Start Date
Completion Date
Gilead Sciences
Gilead Clinical Trials Website
Study Type
Observational [Patient Registry]
About 461 people participating
Last Updated