Clinical Trial

Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections

Recruiting Phase 4
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Summary
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.
Protocol Amendment History 1 change
critical Recruitment opened 2026-05-16
Trial Details
NCT Number NCT06738407
Lead Sponsor Westat
Collaborators: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institute of Allergy and Infectious Diseases (NIAID), National Institute on Drug Abuse (NIDA), National Institute of Mental Health (NIMH), Florida State University, The Office of the Director, National Institutes of Health (NIH)
Conditions Gonorrhea, Chlamydia, Syphilis, Sexually Transmitted Infections (STIs)
Enrollment 760 participants
Start Date 2026-02-27
Primary Completion 2028-06-15 (estimated)
Study Completion 2028-06-15 (estimated)
Updated on ClinicalTrials.gov 2026-05-15