Clinical trials
Syphilis clinical trials
Below are recruiting syphilis clinical trials, each written for real people, not researchers. We’re tracking 28 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07563309Recruiting
Testing a new rapid HIV, hepatitis B, and syphilis test
This study evaluates a new rapid blood test that checks for HIV, hepatitis B, and syphilis all at once. Researchers want to make sure the test works well, is easy to use, and gives accurate results.
Johannesburg, GautengAges 18 years+ - NCT07500415Recruiting
Doxycycline to prevent STIs in Rio de Janeiro
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.
Rio de Janeiro, Rio de JaneiroAges 18 years+ - NCT07397403RecruitingPhase 4
Doxycycline to prevent STIs in men who have sex with men
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.
Sathorn, BangkokAges 3 weeks–2 months - NCT06996938Recruiting
Sexual health screening for women in vulnerable situations
This study offers sexual health checkups and prevention services to women who are in difficult social or financial situations, including those without stable housing or who have sold sex for money. The goal is to see if these services are helpful and acceptable.
ParisAges 18 years+
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Common questions
- Are there clinical trials for syphilis?
- Yes. Clin2 currently lists 28 recruiting syphilis studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a syphilis trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a syphilis trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.