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Completed Phase 3 Interventional Results available

Sofosbuvir With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naive Subjects With Chronic Genotype 1, 4, 5, or 6 HCV Infection

ClinicalTrials.gov ID: NCT01641640

Public ClinicalTrials.gov record NCT01641640. 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, 10:36 AM 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 Phase 3, Multicenter, Open-Label Study to Investigate the Efficacy and Safety of GS-7977 With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naive Subjects With Chronic Genotype 1, 4, 5, or 6 HCV Infection

Brief summary

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

This study was to assess whether sofosbuvir in combination with ribavirin (RBV) and pegylated interferon alfa 2a (PEG) administered for 12 weeks is safe and effective in patients with hepatitis C virus (HCV) genotypes 1, 4, 5 , or 6 as assessed by the rate of sustained viral response (SVR) 12 weeks after discontinuation of therapy (SVR12).

Study identification

NCT ID
NCT01641640
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Gilead Sciences
Industry
Enrollment
328 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
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
Jun 2012 (Type not available)
Primary completion
Jan 2013 (Actual)
Completion
Apr 2013 (Actual)
Last update posted
May 8, 2014

2012 – 2013

United States locations

U.S. sites
55
U.S. states
24
U.S. cities
46
Facility City State ZIP Site status
University of Alabama Birmingham Birmingham Alabama 35294-2170 —
SCTI Research Foundation Coronado California 92118 —
Kaiser Permanente Los Angeles California 90027 —
Peter J. Ruane, MD, Inc. Los Angeles California 90036 —
Anthony Mills MD, Inc. Los Angeles California 90069 —
University of California San Diego San Diego California 92103 —
Medical Associates Research Group, Inc. San Diego California 92123 —
Kaiser Permanente San Diego California 92154 —
Quest Clinical Research San Francisco California 94115 —
University of Colorado Aurora Colorado 80045 —
South Denver Gastroenterology, PC Englewood Colorado 80113 —
Whitman Walker Clinic Washington D.C. District of Columbia 20009 —
Capital Medical Associates Washington D.C. District of Columbia 20036 —
University of Florida Gainesville Florida 32610-0277 —
Borland-Groover Clinic Baptist Jacksonville Florida 32256 —
University of Miami Center for Liver Diseases Miami Florida 33136 —
Advanced Research Institute New Port Richey Florida 34653 —
Orlando Immunology Center (ACH) Orlando Florida 32803-1851 —
Internal Medicine Specialists Orlando Florida 32806 —
South Florida Center of Gastroenterology, P.A. Wellington Florida 33414 —
Digestive Healthcare of Georgia Atlanta Georgia 30309 —
Infectious Disease Specialist of Atlanta Decatur Georgia 30033 —
Gastrointestinal Specialists of Georgia, PC Marietta Georgia 30060 —
Indianapolis Gastroenterology Research Foundation Indianapolis Indiana 46237 —
Graves-Gilbert Clinic Bowling Green Kentucky 42101 —
Gastroenterology Associates, LLC Baton Rouge Louisiana 70809 —
Johns Hopkins University Lutherville Maryland 21093 —
Massachusetts General Hospital Boston Massachusetts 02114 —
Beth Israel Deaconess Medical Center Boston Massachusetts 02215 —
The Research Institute Springfield Massachusetts 01105 —
Henry Ford Health System Novi Michigan 48377 —
Minnesota Gastroenterology, P.A. Saint Paul Minnesota 55114 —
Kansas City Gastroenterology and Hepatology Kansas City Missouri 64131 —
Comprehensive Clinical Research Berlin New Jersey 08009 —
ID Care Hillsborough New Jersey 08844 —
Southwest C.A.R.E. Center Santa Fe New Mexico 87505 —
Binghamton Gastroenterology Associates Binghamton New York 13903 —
Weill Cornell Medical College New York New York 10021 —
Mount Sinai School of Medicine New York New York 10029 —
Asheville Gastroenterology Associates, P.A. Asheville North Carolina 28801 —
Duke University Medical Center Durham North Carolina 27710 —
Digestive Health Specialists, PA Winston-Salem North Carolina 27103 —
Hospital of the University of Pennsylvania Philadelphia Pennsylvania 19104 —
University Gastroenterology Providence Rhode Island 02905 —
The Miriam Hospital Providence Rhode Island 02906 —
Gastro One Germantown Tennessee 38138 —
Nashville Gastrointestinal Specialists, Inc Nashville Tennessee 37211 —
Southwest Infectious Disease Clinical Research, Inc. Dallas Texas 75219 —
Research Specialists of Texas Houston Texas 77030 —
Alamo Medical Research San Antonio Texas 78215 —
Metropolitan Research Fairfax Virginia 22031 —
Inova Fairfax Hospital Center for Liver Diseases Falls Church Virginia 22042 —
Digestive and Liver Disease Specialists Norfolk Virginia 23502 —
Bon Secours St. Mary's Hospital of Richmond, Inc. Richmond Virginia 23226 —
Virginia Mason Medical Center Seattle Washington 98101 —

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 NCT01641640, 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 May 8, 2014 · Synced Oct 26, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01641640 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →