Adherence, HIV-1 Infection, Resistance, and Renal and Skeletal Adverse Event in Individuals Taking Truvada® for HIV Pre-Exposure Prophylaxis (PrEP)

August 27, 2021 updated by: Gilead Sciences

Adherence, HIV-1 Infection, Resistance, and Renal and Skeletal Adverse Event in Individuals Taking Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF, Truvada®) for HIV Pre-Exposure Prophylaxis (PrEP): A Pooled Observational Study

This is an observational study of HIV-1 negative individuals who participated in demonstration projects or clinical studies and took daily Emtricitabine/Tenofovir Disoproxil Fumarate (FTC/TDF, Truvada®) for pre-exposure prophylaxis (PrEP). All individuals were enrolled and followed as described in the parent PrEP demonstration project or clinical study protocol until study completion, HIV-1 infection, discontinuation due to an adverse event, lost to follow-up, or administrative censoring.

In the protocols of the parent PrEP observational or clinical studies, participants had follow-up visits on average every 3 months for evaluation of adherence, renal and bone adverse events, and HIV-1 infection status. Adherence was determined by the specific FTC/TDF drug level measurement(s) outlined in the parent protocol.

Gilead had collected data from 21 global PrEP demonstration projects and clinical studies for over 7,000 Truvada for PrEP users who had at least one measurement of adherence. Data from the different contributing studies were pooled for statistical analyses by Gilead.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

10577

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Foster City, California, United States, 94404
        • Gilead Sciences, Inc.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Seven thousand (7000) HIV-1 negative adults (any sex/gender, including transgender, pregnancy) who are participating in observational or clinical studies on FTC/TDF for PrEP

Description

Inclusion Criteria:

  • Participants in an FTC/TDF for PrEP observational or clinical study
  • HIV-1 negative individual at the time of enrollment in a demonstration project or clinical study
  • Participants with at least one measurement of tenofovir-diphosphate (TFV-DP) in dried blood spot (DBS) or tenofovir (TFV) in plasma

Exclusion Criteria:

  • This is an observational study and will collect HIV-1 infection and resistance information along with renal or skeletal adverse events without intervention.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
FTC/TDF for PrEP
HIV-1 negative adults (any sex/gender, including transgender, pregnancy) who are participating in observational or clinical studies on FTC/TDF for PrEP

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Treatment adherence, as measured by drug level, to the once-daily dosing regimen of FTC/TDF for PrEP
Time Frame: Baseline to Year 3
Baseline to Year 3

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to onset of signs and/or symptoms of acute HIV infection before and after seroconversion during treatment
Time Frame: Baseline to Year 3
The time to onset of signs and/or symptoms if acute HIV infection in relation to exposure to study drug will be recorded. Signs and symptoms include fever, lymphadenopathy, pharyngitis, rash, myalgia, malaise, mouth and esophageal sores, and may also include, but less commonly, headache, nausea and vomiting, enlarged liver/spleen, weight loss, thrush, and neurological symptoms.
Baseline to Year 3
Time to seroconversion during treatment
Time Frame: Baseline to Year 3
The time to seroconversion in relation to exposure to study drug will be recorded.
Baseline to Year 3

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Gilead Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 7, 2013

Primary Completion (Actual)

April 27, 2021

Study Completion (Actual)

April 27, 2021

Study Registration Dates

First Submitted

July 15, 2013

First Submitted That Met QC Criteria

July 19, 2013

First Posted (Estimate)

July 24, 2013

Study Record Updates

Last Update Posted (Actual)

September 1, 2021

Last Update Submitted That Met QC Criteria

August 27, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GS-US-276-0104
  • EUPAS24332 (Registry Identifier: ENCePP)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on HIV

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Zambia

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe