Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

Study to Evaluate Efficacy and Safety of Switching From TDF to TAF in Adults With Chronic Hepatitis B Who Are Virologically Suppressed

ClinicalTrials.gov ID: NCT02979613

Public ClinicalTrials.gov record NCT02979613. 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 Nov 11, 2026, 7:54 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Double-Blind Study to Evaluate the Efficacy and Safety of Switching From Tenofovir Disoproxil Fumarate (TDF) 300 mg QD to Tenofovir Alafenamide (TAF) 25 mg QD in Subjects With Chronic Hepatitis B Who Are Virologically Suppressed

Brief summary

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

The primary objectives of this study are to evaluate the efficacy, safety, and tolerability of switching to tenofovir alafenamide (TAF) versus continuing tenofovir disoproxil fumarate (TDF) in virologically suppressed adults with chronic hepatitis B virus (HBV) infection.

Study identification

NCT ID
NCT02979613
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Gilead Sciences
Industry
Enrollment
490 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
Dec 29, 2016 (Actual)
Primary completion
Sep 10, 2018 (Actual)
Completion
Jan 30, 2020 (Actual)
Last update posted
Sep 14, 2020

2016 – 2020

United States locations

U.S. sites
17
U.S. states
8
U.S. cities
14
Facility City State ZIP Site status
Not listed Los Angeles California — —
Not listed Palo Alto California — —
Not listed Pasadena California — —
Not listed San Diego California — —
Not listed San Francisco California — —
Not listed San Jose California — —
Not listed Baltimore Maryland — —
Not listed Boston Massachusetts — —
Not listed Novi Michigan — —
Not listed Flushing New York 11355 —
Not listed Flushing New York — —
Not listed New York New York 10029 —
Not listed New York New York — —
Not listed Philadelphia Pennsylvania 19107 —
Not listed Philadelphia Pennsylvania — —
Not listed Nashville Tennessee — —
Not listed Sugar Land Texas 77478 —

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 22 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02979613, 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 Sep 14, 2020 · Synced Nov 11, 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 NCT02979613 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →