Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

Sofosbuvir in Combination With Pegylated Interferon and Ribavirin and in Treatment-Naive Hepatitis C-infected Patients

ClinicalTrials.gov ID: NCT01188772

Public ClinicalTrials.gov record NCT01188772. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 26, 2026, 4:11 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multi-center, Placebo-Controlled, Dose Ranging Study to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Following Oral Administration of PSI-7977 in Combination With Pegylated Interferon and Ribavirin in Treatment-Naïve Patients With Chronic HCV Infection Genotype 1, and an Open Label Assessment of PSI-7977 in Patients With HCV Genotypes 2 or 3

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Genotype 1: Participants with genotype 1 hepatitis C (HCV) infection were randomized to receive sofosbuvir (GS-7977; PSI-7977) 200 mg or 400 mg, or matching placebo, plus pegylated interferon alfa 2a (PEG) and ribavirin (RBV) for 12 weeks, followed by PEG+RBV for an up to an additional 36 weeks. Randomization was stratified by IL28B status (CC, CT, TT) and HCV RNA level (\< 800,000 IU/ml or ≥ 800,000 IU/ml) at baseline. Participants were randomized in a 2:2:1 manner; those who achieved an extended rapid virologic response (eRVR) (HCV RNA \< lower limit of detection \[15 IU/mL\] from Weeks 4 through 12) received an additional 12 weeks of PEG+RBV. Subjects not achieving eRVR received an additional 36 weeks of PEG+RBV. Genotype 2 and 3: Participants with genotype 2 or 3 hepatitis C (HCV) received sofosbuvir 400 mg plus PEG+RBV for 12 weeks.

Study identification

NCT ID
NCT01188772
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Gilead Sciences
Industry
Enrollment
147 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 70 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 2010 (Type not available)
Primary completion
Apr 2011 (Actual)
Completion
May 2012 (Actual)
Last update posted
Apr 21, 2014

2010 – 2012

United States locations

U.S. sites
22
U.S. states
14
U.S. cities
20
Facility City State ZIP Site status
Alabama Liver and Digestive Specialists Montgomery Alabama — —
Advanced Clinical Research Institute Anaheim California — —
SCTI Research Foundation Coronado California — —
Cedars Sinai Medical Center Los Angeles California — —
Dr. Jay Lalezari San Francisco California — —
Dr. Natalie Bzowej San Francisco California — —
Dr. David Nelson Gainesville Florida — —
Orlando Immunology Center Orlando Florida — —
Gastrointestinal Specialists of Georgia Marietta Georgia — —
University of Chicago Chicago Illinois — —
Dr. Mark Sulkowski Lutherville Maryland — —
Liver Research Center Beth Israel Deaconess Medical Center Boston Massachusetts — —
Kansas City Gastroenterology and Hepatology Kansas City Missouri — —
Dr. Bruce Bacon St Louis Missouri — —
North Shore University Hospital Manhasset New York — —
Dr. Ira Jacobson New York New York — —
Mount Sinai School of Medicine New York New York — —
Dr. Jama Darling Chapel Hill North Carolina — —
Dr. Raj Reddy Philadelphia Pennsylvania — —
Columbia Gastroenterology and Liver Associates Columbia South Carolina — —
Dr. Eric Lawitz San Antonio Texas — —
Digestive Disease Institute Virginia Mason Medical Center Seattle Washington — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01188772, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 21, 2014 · Synced Oct 26, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01188772 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →