Clinical trialNCT00119106CompletedPhase 2/PHASE3Interventional

Bangkok Tenofovir Study, an HIV Pre-exposure Prophylaxis Trial, Bangkok, Thailand

SponsorCenters for Disease Control and PreventionEnrollment2,413HIV Infections

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The primary goals of this study are to assess the safety and efficacy of daily tenofovir to prevent parenteral HIV infection among injection drug users (IDUs). Assessment of changes in HIV associated risk behaviors, adherence to study drug, and, among IDU who become HIV-infected during the trial, evaluation of HIV viral load set point, CD4 counts, genetic characterization of infecting HIV viruses, and antiretroviral resistance will also be done.

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Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Kachit Choopanya, MD
Bangkok Tenofovir Study Group
Principal Investigator
clinicaltrials.gov ↗
Lynn Paxton, MD
Centers for Disease Control and Prevention
Study Director
clinicaltrials.gov ↗
Michael T Martin, MD, MPH
Centers for Disease Control and Prevention
Study Director
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Thailand

Thailand Ministry of Public Health - U.S. Cdc Collaboration
Nonthaburi, Thailand

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

PlaceboTenofovir disoproxil →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 30 Jun 2005
Primary completion: 31 Jul 2013
Completion: 31 Oct 2014
Last update posted: 10 Feb 2021
Registered enrollment: 2,413
Registry id: NCT00119106

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.