Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexFemale
Age13-29
SponsorWestat

About this trial

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.

Eligibility criteria

Qualifiers

Age 13-29 years, inclusive;

Self-reports GC, CT, and/or early syphilis diagnosis in the 12 months prior to screening;

Self-reports condomless (oral, vaginal, and/or anal) intercourse at least once in the 30 days prior to screening

Is at least 45 kilograms (99.2 pounds) in weight

Disqualifiers

Is male;

Is pregnant, breastfeeding, or planning to become pregnant in the next 12 months;

Documented history of tetracycline allergy or self-reports an allergy to tetracyclines;

Current or anticipated use of a medication (e.g., barbiturates, phenytoin, lithium, carbamazepine, systemic retinoids, warfarin) with a contraindicated interaction to doxycycline ;

Trial design

Treatments tested in this trial

  • Doxycycline hyclate delayed released 200 mg
  • Doxycycline hyclate delayed released 200 mg weekly
  • Per standard of care with quarterly STI testing/treatment and sexual health counseling

Treatment groups

760 Participants
are divided into 3 treatment groups

Sponsors and collaborators

Westat

Lead sponsor

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Collaborator

National Institute of Allergy and Infectious Diseases (NIAID)

Collaborator

National Institute on Drug Abuse (NIDA)

Collaborator

National Institute of Mental Health (NIMH)

Collaborator

Florida State University

Collaborator

The Office of the Director, National Institutes of Health (NIH)

Collaborator