Sexually transmitted disease

This early-stage trial tests whether three experimental mRNA vaccines can safely teach the immune system to recognize and fight HIV. About 108 healthy, HIV-negative adults aged 18-55 will receive one of the vaccines. The main goal is to check for side effects and see if the vacci…

This study is testing a special kiosk placed in rural Appalachian Kentucky that provides clean syringes and harm reduction supplies to people who inject drugs. The goal is to see if the kiosk helps reduce the spread of HIV and hepatitis C, and lowers the risk of drug overdose. Ab…

This study tests whether giving HIV patients their own genetically modified stem cells is safe and feasible. The cells are changed to resist HIV, and patients receive a mild chemotherapy drug before infusion. The goal is to see if the modified cells can help control the virus, bu…

This study tests a new program where trained village health workers use tablet-based tools to provide HIV prevention services, including PrEP and emergency PEP, to people at high risk in rural Lesotho. About 380 participants will be enrolled to see if this approach increases mont…

This study tests whether offering lottery-based rewards for saving money can help Kenyan men reduce behaviors that raise their risk for HIV and other STIs. About 1,500 men aged 18-39 who drink alcohol and have paid for sex in the past will be split into two groups. One group gets…

This study looks at how to keep a youth-friendly HIV self-testing program called 4YBY running in Nigeria. It will involve over 1,200 young people aged 14-24 who are at risk for HIV. Researchers will compare standard program delivery with an enhanced version that includes extra su…

This study tests a program called ZAIMARA that brings together adolescent girls (ages 15-19) and their mother figures for a two-day workshop. The goal is to improve communication about HIV, sexually transmitted infections, and PrEP, and to increase HIV testing and prevention. Res…

This study tests whether taking doxycycline before potential exposure to STIs works better than taking it after exposure. 300 men who have sex with men will be randomly assigned to one of two groups and followed for 2 years. The goal is to see which approach better prevents chlam…

This study tests whether adding trauma-coping lessons to a relationship skills program helps teens aged 13-19 in Miami avoid unprotected sex and pregnancy. Nearly 1,000 youth will be split into three groups: one gets the combined program, one gets relationship skills only, and a …

This study tests a mobile app called Next4You designed for teens aged 16-19 in California's foster care system. The app offers short lessons on communication, relationships, sexual health, and wellness over four weeks. Researchers want to see if it helps teens avoid unintended pr…

This Phase 3 trial tests whether a meningitis B vaccine (Bexsero) can prevent gonorrhea infections in men who have sex with men. 150 participants in Hong Kong will receive either the vaccine or a placebo. Researchers will compare infection rates and monitor safety.

This study is testing a 5-day classroom program for teens aged 14-19 in rural Tennessee. The goal is to reduce pregnancies, STIs, and risky behaviors like sexting by teaching both abstinence and contraception. About 1,200 high-risk youth will take part, and researchers will track…

This study tests a program called Wrap It Up (WIU) for 11th and 12th graders in rural California. The program is a short booster course (4-5 hours) that builds on earlier sex ed to help teens make informed decisions about sex, contraception, and STDs. Researchers will compare stu…

This study tests a mobile app called Combine to help gay, bisexual, and other men who have sex with men in rural southern US get tested for HIV and STIs and start taking PrEP (a daily pill that prevents HIV). About 473 men will use the app and be placed into one of four groups: s…

This study tests whether a smartphone game called Tumaini can help prevent HIV among 1000 adolescents aged 12-14 in Kenya. The game teaches sexual health, risk reduction, and condom use through role-playing. Researchers will compare outcomes like age at first sex and condom use b…

This study looks at how the body processes doxycycline, an antibiotic, when taken in different ways—either as a single dose or repeated doses (daily or every three days). Healthy adults without any sexually transmitted infections will be randomly assigned to one of these schedule…

This study tests a mobile chatbot called AskDoki, which provides age-appropriate sexual health information via WhatsApp, along with trained youth peer leaders (Digital Champions) who help teens access and use the program. About 610 adolescents aged 15-19 living in urban informal …

This observational study tracks HIV/STD prevention behaviors in 1,275 gay and bisexual men in Atlanta, Chicago, and San Diego. Participants complete surveys and HIV/STD testing over two years. The goal is to understand how men use PrEP, condoms, and other strategies, and to devel…

This study looks at whether text messages can encourage teenagers (ages 13-19) to get tested for HIV. About 360 teens who have had sex and are HIV-negative or don't know their status will receive either helpful texts or general information. Researchers will check if more teens ge…

This study tests a program called the Sexual Health Empowerment (SHE) Project for women who are about to leave jail. The goal is to improve their understanding of cervical cancer, breast cancer, contraception, and sexually transmitted diseases. About 279 women will take part, and…

This study in Nepal tests whether using rapid point-of-care tests for sexually transmitted infections can reduce the overuse of antibiotics for vaginal discharge. About 1,500 women will be split into three groups: standard care, test-guided treatment, or test-guided treatment plu…

This study is checking how many people with suspected hemorrhagic proctosigmoiditis (a type of bowel inflammation) actually have a sexually transmitted infection (STI) like chlamydia or gonorrhea. Researchers will take a swab during a routine colonoscopy from 214 patients across …

This study follows 830 women in Alabama who are at risk for HIV and sexually transmitted infections (STIs). Researchers will use a smartphone app to provide information and resources, and track how many women start using PrEP, a medication that prevents HIV. The goal is to learn …