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Study identifier: NCT06738407 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections

Condition: Gonorrhea · Chlamydia · Syphilis  ·  Sponsor: Westat

PhasePhase 4
Planned participants760
Who can joinFemale, 13 Years to 29 Years
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Nancy Liu  ·  718-980-3937  ·  NancyLiu@westat.com

Erin Ricketts  ·  240-453-2786  ·  ErinRicketts@westat.com

Always discuss trial participation with your own doctor first.

Locations (13)

UCLA CareLos Angeles, California, United StatesNot Yet Recruiting
San Francisco Department of Public HealthSan Francisco, California, United StatesRecruiting
Children's National Medical CenterWashington D.C., District of Columbia, United StatesRecruiting
University of FloridaTampa, Florida, United StatesRecruiting
Ponce de LeonAtlanta, Georgia, United StatesNot Yet Recruiting
University Illinois ChicagoChicago, Illinois, United StatesRecruiting
Tulane UniversityNew Orleans, Louisiana, United StatesNot Yet Recruiting
Johns Hopkins UniversityBaltimore, Maryland, United StatesNot Yet Recruiting
Harlem Prevention CenterNew York, New York, United StatesNot Yet Recruiting
Chapel HillChapel Hill, North Carolina, United StatesNot Yet Recruiting
Penn PreventionPhiladelphia, Pennsylvania, United StatesNot Yet Recruiting
St. Jude Children's Research HospitalMemphis, Tennessee, United StatesRecruiting

+ 1 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06738407