Doxy-PEP study for STI prevention
Part of Infections clinical trials.
This trial studies whether giving the antibiotic doxycycline right after sex (known as Doxy-PEP) can prevent STIs. It asks participants to provide hair, blood, and urine samples and follow specific guidelines about hair and condom use.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are willing to use condoms for STI prevention or are not currently at risk for an STI.
- You can provide a 50-100 strand hair sample that is not gray, bleached, or shorter than 1 cm.
- You are not pregnant or planning to become pregnant during the study.
- You are not allergic to the antibiotic doxycycline.
- If you are a transgender woman or man, you must be using hormone therapy consistently.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study looks at making it easier for young women to get STI and HIV prevention services like PrEP (a daily pill to prevent HIV) when they pick up birth control at a retail pharmacy. It aims to see if offering these services in a pharmacy setting helps women access prevention more easily.
This study tests whether taking an antibiotic called doxycycline after sex can prevent bacterial STIs (like chlamydia and gonorrhea) in women. You would take the pill within 72 hours after sex and track it with a smartphone app, aiming to reduce your risk of getting an STI.
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.
This study tests whether taking a daily antibiotic (doxycycline) can prevent sexually transmitted infections in people at high risk. If you've had an STI recently and sometimes have sex without condoms, you might be able to join.
This trial tests whether taking doxycycline can lower the chance of getting bacterial sexually transmitted infections like syphilis, gonorrhea, and chlamydia. It is aimed at men who have had these infections recently and expect to keep having multiple male partners.
This trial tests whether taking a single dose of doxycycline after sex can prevent common sexually transmitted infections (STIs) like gonorrhea, chlamydia, and syphilis in men who have sex with men (MSM) in Bangkok.
Hear when a new Sexually Transmitted Diseases, Bacterial trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.