Doxycycline to prevent STIs in Rio de Janeiro
Treatments studied
Part of Immune system & allergy, Infections clinical trials.
This trial tests whether taking the antibiotic doxycycline can prevent sexually transmitted infections (STIs) like chlamydia, gonorrhea, and syphilis in people at higher risk. If you are a man or transgender woman who has sex with men, are living with HIV or on PrEP, and have had an STI in the past year, you may be able to join.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You were assigned male at birth, or you are a transgender woman or travesti who has sex with men
- You are 18 years old or older
- You are living with HIV, or you have been using PrEP (HIV prevention pills) for at least 6 months
- You have had at least one bacterial STI (chlamydia, gonorrhea, or syphilis) in the past 12 months
- You are not allergic to doxycycline or similar antibiotics, and you don't take certain medications that could interact with it
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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