Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 4 Interventional Results available

Efficacy & Safety of Tenofovir Disoproxil Fumarate (TDF) Plus Peginterferon α-2a (Peg-IFN) Versus TDF or Peg-IFN Monotherapy in Chronic Hepatitis B

ClinicalTrials.gov ID: NCT01277601

Public ClinicalTrials.gov record NCT01277601. 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 21, 2026, 5:13 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 4, Randomized, Open-label, Active-Controlled, Superiority Study to Evaluate the Efficacy and Safety of Tenofovir Disoproxil Fumarate (TDF) in Combination With Peginterferon α-2a (Pegasys®) Versus Standard of Care Tenofovir Disoproxil Fumarate Monotherapy or Peginterferon α-2a Monotherapy for 48 Weeks in Non-Cirrhotic Subjects With HBeAg-Positive or HBeAg-Negative Chronic Hepatitis B (CHB)

Brief summary

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

The primary objective of this study is to evaluate the efficacy of tenofovir disoproxil fumarate (TDF) plus peginterferon α-2a (Peg-IFN) combination therapy for 48 weeks versus standard of care TDF monotherapy or Peg-IFN monotherapy for 48 weeks in non-cirrhotic adults with chronic hepatitis B virus (HBV) as determined by loss of hepatitis B surface antigen (HBsAg). The study will consist of 2 phases for participants in the TDF+Peg-IFN 48 Weeks, TDF 48 Weeks + Peg-IFN 16 Weeks, and Peg-IFN 48 Weeks groups. Following an initial 48 weeks of treatment, participants in these groups will be monitored for 24 weeks for signs of worsening HBV, and those meeting TDF retreatment and flare management criteria will be eligible to receive TDF monotherapy during a retreatment phase, up to Week 120.

Study identification

NCT ID
NCT01277601
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
Gilead Sciences
Industry
Enrollment
751 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 75 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
Apr 2011 (Type not available)
Primary completion
Aug 2014 (Actual)
Completion
Jul 2015 (Actual)
Last update posted
Aug 26, 2016

2011 – 2015

United States locations

U.S. sites
26
U.S. states
13
U.S. cities
20
Facility City State ZIP Site status
Asian Pacific Liver Center Los Angeles California — —
Stanford University Medical Center Palo Alto California — —
Research and Education Inc San Diego California — —
San Jose Gastroenterology San Jose California — —
Avail Clinical Research, LLC DeLand Florida — —
Centre for Advanced Gastroenterology Maitland Florida — —
University of Miami / Jackson Memorial Medical Center Miami Florida — —
University of Chicago Chicago Illinois — —
LSU Gastroenterology/Center for Digestive Diseases New Orleans Louisiana — —
Tulane University Hospital and Clinic New Orleans Louisiana — —
Digestive Disease Associates Baltimore Maryland — —
Tufts Medical Center Boston Massachusetts — —
Henry Ford Hospital Detroit Michigan — —
ID Care, Inc. Hillsborough New Jersey — —
Medical Procare, PLLC Flushing New York — —
North Shore University Hospital Great Neck New York — —
Beth Israel Medical Center New York New York — —
New York Univ. Medical Center New York New York — —
Weill Cornell Medical College of Cornell University New York New York — —
Private Practice Philadelphia Pennsylvania — —
Advanced Liver Therapies at St. Luke's Episcopal Hospital Houston Texas — —
Kelsey Research Foundation Houston Texas — —
Liver Associates of Texas, Houston Texas — —
University of Utah Salt Lake City Utah — —
Liver Institute of Virginia, Bon Secours Health System Richmond Virginia — —
McGuire Research Institute Richmond Virginia — —

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 145 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01277601, 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 Aug 26, 2016 · Synced Oct 21, 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 NCT01277601 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →