Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections

ClinicalTrials.gov ID: NCT06738407

Public ClinicalTrials.gov record NCT06738407. 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.

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ClinicalTrials.gov public records Last synced Oct 20, 2026, 8:46 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections Among Adolescent and Young Adult Females in the United States

Brief summary

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

The goal of this open-label, randomized trial is to assess the efficacy of doxycycline prophylaxis in reducing incidences of bacterial sexually transmitted infections (STIs) among adolescent and young adult females while also evaluating acceptability and antimicrobial resistance in order to inform public health policy.

Study identification

NCT ID: NCT06738407
Recruitment status: Recruiting
Study type: Interventional
Phase: Phase 4
Lead sponsor: Westat; Other
Enrollment: 760 participants

Conditions and interventions

Conditions

Interventions

Drug · Other

Eligibility (public fields only)

Age range: 13 Years to 29 Years
Sex: Female
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: Feb 27, 2026 (Actual)
Primary completion: Jun 30, 2029 (Estimated)
Completion: Jun 30, 2029 (Estimated)
Last update posted: Oct 16, 2026

2026 – 2029

United States locations

U.S. sites: 13
U.S. states: 12
U.S. cities: 13

Facility	City	State	ZIP	Site status
UCLA Care	Los Angeles	California	90095	Recruiting
San Francisco Department of Public Health	San Francisco	California	94102	Recruiting
Children's National Medical Center	Washington D.C.	District of Columbia	20010	Recruiting
University of Florida	Tampa	Florida	33612	Recruiting
Ponce de Leon	Atlanta	Georgia	30303	Recruiting
University Illinois Chicago	Chicago	Illinois	60612	Recruiting
Tulane University	New Orleans	Louisiana	70112	Recruiting
Johns Hopkins University	Baltimore	Maryland	21287	Recruiting
Harlem Prevention Center	New York	New York	10027	Recruiting
Chapel Hill	Chapel Hill	North Carolina	27599	Recruiting
Penn Prevention	Philadelphia	Pennsylvania	19104	Not yet recruiting
St. Jude Children's Research Hospital	Memphis	Tennessee	38015	Recruiting
Baylor College of Medicine	Houston	Texas	77030	Recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT06738407, 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 Oct 16, 2026 · Synced Oct 20, 2026

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The complete public registry record, listed eligibility criteria, and available contact information for NCT06738407 live on ClinicalTrials.gov.

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