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Your journey
1What's a trial
4Get in touch
More info
You can access this
clinical trial
if you have
Hepatitis C
and you are
between 18 and 65
years old
This is a second phase trial assessing
efficacy and side effects of the new treatment.
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The purpose

Participants with genotype 1 HCV infection were randomized to 1 of 3 sofosbuvir doses (100 mg, 200 mg, or 400 mg) or matching placebo once daily based upon stratification for IL28B status (CC or CT/TT). Placebo tablets were administered to participants receiving 100 mg active sofosbuvir (3 placebo tablets) and 200 mg active sofosbuvir (2 placebo tablets) in order to maintain the study blind. Participants received sofosbuvir/matching placebo from Day 0 to 27. Participants also received treatment with PEG+RBV starting on Day 0 of the study which continued for 48 weeks. Participants were evaluated for sustained virologic response (SVR) for an additional 24 weeks following completion of study treatment.

Provided treatments

  • Drug: Sofosbuvir
  • Drug: Placebo
  • Drug: PEG
  • Drug: RBV

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01054729. The sponsor of the trial is Gilead Sciences and it is looking for 64 volunteers for the current phase.
Official trial title:
A Multi-center, Double-Blind, Parallel Group, Randomized, Placebo-Controlled, Dose Ranging Study to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Following Oral Administration of PSI-7977 in Combination With Standard of Care (Pegylated Interferon and Ribavirin) in Treatment-Naïve Patients With Chronic HCV Infection Genotype 1