Clinical trials
Obesity clinical trials
Excess body weight that increases the risk of many other health conditions. We’re tracking 1,434 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06714929Recruiting
School water study for students in grades K-5
This study looks at how a new water program in schools might affect student health and hydration. It includes watching what kids drink at lunch, checking teeth and body weight for older students, and asking 4th and 5th graders and staff about their drinks.
Henrico, VirginiaAges 4 years+ - NCT06691100Recruiting
How one workout changes gut bugs in women
This study looks at how a single workout changes the bacteria in your gut. It compares women who are very fit with women who don't exercise much, and includes women with different body types.
Washington D.C., District of ColumbiaAges 21–40 - NCT06686537RecruitingPhase 2
Study on metabolism and hormones in women
This study looks at how metabolism and hormones are connected in women. It tests a treatment to see if it can improve metabolic health related to the menstrual cycle.
Aurora, ColoradoAges 18–38 - NCT06686875Enrolling by invitation
Chronic belly pain after sleeve gastrectomy study
This study looks at long-term belly pain in people who had a sleeve gastrectomy 3 months to 5 years ago. It aims to understand the pain better to help future patients.
WarsawAges 18 years+ - NCT03699228Recruiting
Low-dose chest CT study for adults in China
This study is looking at people ages 30 to 90 who are willing to get a low-dose chest CT scan. It may help researchers improve how health data is collected and understood from scans.
Wuhu, AnhuiAges 30–90 - NCT06374368Recruiting
Small bowel diversion surgery for obesity
This trial tests a surgery called small bowel diversion to help people with obesity lose weight. It may also improve blood sugar control for those with type 2 diabetes.
OstravaAges 18–65 - NCT05802121RecruitingEarly Phase 1
Testing a gut bacteria supplement side effects during prostate hormone therapy
This early-phase study looks at how changing gut bacteria (especially Akkermansia) affects metabolic side effects in men starting prostate hormone therapy (ADT). It may help researchers understand how to reduce or manage side effects for people on ADT.
London, OntarioAges 18 years+ - NCT06640179Recruiting
Lifestyle program for kidney transplant recipients
This study tests a diet and exercise program for people who recently received a kidney transplant. It aims to see if the program is safe and helpful for improving health after transplant.
Kansas City, KansasAges 18 years+ - NCT06619041Recruiting
HealthyTogether: Weight Management with a Partner
This study tests a weight management program where you and a partner (like a spouse or friend) work together virtually. It aims to help you lose weight and improve health habits alongside someone you trust.
Aurora, ColoradoAges 18 years+ - NCT06291766Recruiting
Gestational diabetes after gastric bypass study
This study looks at how a continuous glucose monitor (CGM) can help manage blood sugar in pregnant women who have had gastric bypass surgery and now have gestational diabetes. It aims to find better ways to monitor and treat diabetes during pregnancy for women after this type of weight-loss surgery.
LundAges 18–50 - NCT06623669RecruitingPhase 2
Mobile program to reduce pain and improve health in older adults
This trial tests a mobile program to help reduce pain and improve health in older adults with knee or hip arthritis who are not very active. The program involves exercise and may help with weight management.
Winston-Salem, North CarolinaAges 65 years+ - NCT06625762Recruiting
Nantes bariatric surgery study
This study follows people who are preparing for bariatric (weight-loss) surgery to see how the surgery affects their health over time. It is being done to better understand the benefits and risks of bariatric surgery.
Nantes, Loire-AtlantiqueAges 18–70 - NCT06627868Recruiting
NAD+ metabolism in human brown fat
This study explores how the body's natural substance NAD+ works in brown fat, a type of fat that burns calories. It may help researchers understand metabolism and find new ways to treat obesity.
TurkuAges 30–65 - NCT06617689Recruiting
Education on drinking and oral health after weight loss surgery
This study tests whether a patient education program can help people having weight loss surgery improve their drinking habits and oral hygiene.
TrondheimAges 18 years+ - NCT06600555Recruiting
Metabolic surgery for diabetes control
This trial tests a type of weight-loss surgery (called metabolic surgery) to see if it helps people with type 2 diabetes achieve better blood sugar control. It's for people who have struggled to manage their diabetes with standard treatments and have a BMI between 30 and 35.
VilleurbanneAges 18–65 - NCT06602141Recruiting
Exercise and fat cell changes study
This study looks at how endurance exercise changes fat cells in the body. It may help understand how exercise benefits weight-related health.
Orlando, FloridaAges 18–45 - NCT04949451Recruiting
Testing time-restricted eating for muscle and metabolism
This study looks at whether eating only during certain hours can improve muscle and metabolism in adults with higher body weight. You may be asked to follow a specific eating schedule and avoid things that could affect the results.
Fayetteville, ArkansasAges 25–50 - NCT06596902Recruiting
Physical activity program for Latino families near the U.S.-Mexico border
This trial tests a program to help Latino families become more active and fit. It takes place at community centers near the border and includes both parents and children.
San Diego, CaliforniaAges 6 years+ - NCT06596265Recruiting
Fit2Lead Study: Community park programs for teen health
This study looks at how community park programs can help improve health among teens. It uses data from teenagers who were already part of a larger program called Fit2Lead in Miami-Dade County.
Miami, FloridaAges 12–17 - NCT06595251Recruiting
Fit2Play park study for better health
This trial looks at health programs in Miami-Dade parks. If you are already in the Fit2Play study, your data will be used to learn how these programs help people get healthier.
Miami, FloridaAges 6–14 - NCT06588218Recruiting
Watermelon for gut and heart health in young adults
This study is testing whether eating watermelon every day for 4 weeks can improve gut health and heart health in young adults. If you are overweight and between 18 and 30, you may be able to join.
Tallahassee, FloridaAges 18–30 - NCT06597474RecruitingPhase 2/Phase 3
Food-Body-Mind wellness program for preschoolers
This study tests a 16-week program called Food-Body-Mind that helps preschoolers and their families build healthy habits. It focuses on movement, eating well, and feeling good about your body, and is designed for children ages 3 to 5 in Head Start programs.
Jackson, MichiganAges 3–5 - NCT06571487Recruiting
Growth hormone resistance in beta cells after pregnancy
This study looks at how the body's insulin-making cells (beta cells) might become resistant to growth hormone after a full-term pregnancy. It compares women who had gestational diabetes to those who didn't, to learn more about diabetes risk. You may join if you had a healthy single-baby pregnancy in the last 5 years and never had type 1 or type 2 diabetes.
Columbia, MissouriAges 18–45 - NCT06571500Recruiting
Growth hormone and insulin cells in type 2 diabetes risk
This study looks at how growth hormone affects insulin-making cells in people at risk for type 2 diabetes. It may help explain why some people with a family history of diabetes develop the condition.
Columbia, MissouriAges 18–59
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Common questions
- Are there clinical trials for obesity?
- Yes. Clin2 currently lists 1,434 recruiting obesity 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 obesity 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 obesity 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.