Study to Evaluate Efficacy and Safety of Switching From TDF to TAF in Adults With Chronic Hepatitis B Who Are Virologically Suppressed
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.
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, 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
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
Conditions
Interventions
- TAF Drug
- TDF Drug
- TAF Placebo Drug
- TDF Placebo Drug
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 28, 2016
- Primary completion
- Sep 9, 2018
- Completion
- Jan 29, 2020
- Last update posted
- Sep 13, 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 13, 2020 · Synced Jul 22, 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 protocol, eligibility criteria, and contact information for NCT02979613 live on ClinicalTrials.gov.