Clinical trials
PrEP clinical trials
Below are recruiting prep clinical trials, each written for real people, not researchers. We’re tracking 82 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06506188Recruiting
Improving HIV prevention for breastfeeding women in Malawi
This study looks at how to make it easier for women in Malawi to stay on PrEP after giving birth while breastfeeding. Researchers will check medical records and ask some women to do a short survey and a finger stick blood test.
LilongweAges 15–99 - NCT06226155Recruiting
HIV prevention support for pregnant women in Zimbabwe
This study in Zimbabwe tests a program to help pregnant women start and stay on PrEP (medication that prevents HIV). It aims to make PrEP easier to use during pregnancy for women who are at risk of HIV.
HarareAges 15–55 - NCT05813964RecruitingPhase 3
Event-driven HIV prevention pill for men who have sex with men
This trial tests a new way to take HIV prevention medicine (PrEP) only around the time you have sex, using a pill called TAF/FTC. It aims to see if this 'on-demand' method is effective, safe, and acceptable, and could offer a more flexible option than taking a pill every day.
ParisAges 18 years+ - NCT05804461Recruiting
PrEP support study for Latino gay and bisexual men in Puerto Rico
This study tests ways to help Latino men who have sex with men use PrEP, a medicine that helps prevent HIV. You may be invited if you are HIV-negative (or your status is unknown), are not currently on PrEP, and can read and write Spanish.
San JuanAges 21–99 - NCT05769218Recruiting
Rapid HIV prevention and opioid treatment access for people who inject
This study helps people who inject drugs start HIV prevention (PrEP) and medication for opioid use disorder (MOUD) faster. It may reduce HIV risk and improve access to treatment, while the study checks whether the “rapid access” approach works.
Boston, MassachusettsAges 18 years+ - NCT05774548Recruiting
Study of PrEP use and its cost in HIV prevention
This study looks at how taking PrEP (medicine to prevent HIV) affects HIV prevention and how much it costs in real life. You may be able to join if you are HIV-negative and are interested in starting, currently using, or have used PrEP before.
Bangkok, BangkapiAges 18 years+ - NCT05669534RecruitingPhase 4
HIV prevention support for people starting PrEP
This study tests how to better support HIV prevention for people who inject drugs and are newly starting PrEP (medicine to prevent HIV). It focuses on people taking medication for opioid use disorder and who have mild thinking and memory problems, to help them stay safe and adhere to prevention.
New Haven, ConnecticutAges 18 years+ - NCT05624931Recruiting
Helping pregnant women stay on PrEP after starting it
This study tries to reduce the psychological barriers that make it hard for pregnant or postpartum women to keep taking PrEP. It may help by offering support tailored to stress, trauma symptoms, or depression—especially soon after PrEP is started.
Boston, MassachusettsAges 15 years+ - NCT05234125Recruiting
Lifestyle counseling during pregnancy for African American women
This trial tests a better lifestyle counseling program during pregnancy to help improve health—especially for women who started pregnancy at a higher weight. It may help you learn practical changes for a healthier pregnancy and outcomes.
Chicago, IllinoisAges 18–40 - NCT05148494RecruitingPhase 4
Enema versus drink for bowel prep before rectal surgery
This trial compares two bowel-clearing methods—an enema given through the rectum versus an oral (by mouth) mechanical bowel prep—during a specific type of rectal surgery. It aims to find which method works better and is easier or safer for patients.
Halifax, Nova ScotiaAges 18–75
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Common questions
- Are there clinical trials for prep?
- Yes. Clin2 currently lists 82 recruiting prep 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 prep 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 prep 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.