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
- NCT07305168Recruiting
Breathing after tonsil surgery in children with sleep apnea
This study looks at breathing problems that can happen after tonsil or adenoid surgery in children who have sleep apnea. Researchers want to learn more so they can make surgery safer for kids.
Edegem, AntwerpAges 1–18 - NCT03634930Recruiting
Study of how early pregnancy choices affect your baby
This trial looks at how “perinatal programming” (early-life influences starting around pregnancy and the first month) may affect babies. It enrolls healthy, full-term births and compares families who can follow an all-breastfeeding or all-formula plan.
Graz, StyriaAges 18–50 - NCT07288294Recruiting
Primary care strategies for weight management after stopping medication
This study looks at different ways to help you keep weight off after you stop taking a weight loss medication. You will work with your primary care team to learn healthy habits and get support without the drug.
Chicago, IllinoisAges 18 years+ - NCT07294950RecruitingPhase 3
What happens when you stop semaglutide after weight loss
This study looks at what happens to your body and weight when you stop taking semaglutide (Wegovy/Ozempic) after losing at least 10% of your starting weight. The goal is to understand how your metabolism and heart health change once the medication is paused.
Toronto, OntarioAges 18–75 - NCT07292441RecruitingPhase 3
Long-term weight loss study for trial participants
This study is for people who finished a previous weight loss trial and want to continue treatment with an injectable medication GZR18. It tests how well the medicine works over a longer period.
Beijing, Beijing MunicipalityAges 18–75 - NCT03574103Recruiting
Testing how fasting affects health in women with excess weight
This study looks at the long-term effects of fasting on the body in women who have a higher-than-average weight. It may help researchers understand potential benefits and risks of fasting, but it also requires you to meet several health and medication rules.
Belo Horizonte, Minas GeraisAges 18–59 - NCT07282340RecruitingPhase 2
Phentermine for weight loss in teens
This study tests a medicine called phentermine to help teens ages 12 to 17 with obesity lose weight. It will check if the medicine is safe and works well for teenagers.
Wilmington, DelawareAges 12–17 - NCT06693934Recruiting
Prevention program for young adults at risk of diabetes
This trial offers a prevention program for young adults aged 18 to 44 who have at least one risk factor for diabetes but do not already have diabetes. The program aims to help prevent or delay the onset of diabetes.
Hong KongAges 18–44 - NCT07280221Enrolling by invitation
Wegovy real-world weight loss study in Korea
This study tracks how well Wegovy (a once-weekly injection for weight loss) works for people in Korea who are just starting the medication. It helps doctors understand real-world results outside of a research clinic.
Goyang-si, Gyeonggi-doAges 19 years+ - NCT07282743RecruitingPhase 2
Study of GL0034 for overweight or obese adults with type 2 diabetes
This trial tests a new medication, GL0034, to see if it helps with weight loss and blood sugar control in people with type 2 diabetes who are overweight. Participants must already be taking metformin and not using other diabetes drugs.
Little Rock, ArkansasAges 18 years+ - NCT07286968Recruiting
Digestion Study After Weight-Loss Surgery
This study looks at how digestion works after weight-loss surgery. Volunteers may be people with obesity or those who had gastric bypass or sleeve gastrectomy at least a year ago. The goal is to learn more about gut function after surgery.
LeuvenAges 18–65 - NCT06881485Recruiting
Medication with or without a special diet for weight regain after bariatric surgery
This study tests if a combination of two drugs (naltrexone and bupropion) with or without a very low-calorie ketogenic diet can help people who have regained weight after gastric bypass or sleeve gastrectomy. It may offer a non-surgical option to manage weight regain.
Leuven, Vlaams-BrabantAges 18 years+ - NCT07272824Recruiting
Digital weight management program for pregnancy and after birth
This trial tests a digital program that helps women manage their weight during and after pregnancy. The program uses an online 'maternity card' and care pathway to provide support.
Turku, FinlandAges 18–50 - NCT05008276Recruiting
Study of puberty, diabetes, and kidney stress in teens
This trial studies how puberty and blood sugar changes affect the kidneys in people with type 1 diabetes. It may help researchers understand early kidney risk and identify who needs closer monitoring.
Aurora, ColoradoAges 8–14 - NCT07272837Recruiting
How semaglutide affects heart and muscle mass
This study looks at how semaglutide (Ozempic or Wegovy) changes heart muscle and body muscle. It may help people with type 2 diabetes or those taking the drug for weight loss understand if their heart is affected.
Edmonton, AlbertaAges 18–80 - NCT07275697RecruitingPhase 4
Weight loss drug and heart ablation study for AFib
This trial tests whether a weight loss medication (semaglutide) given before and after a first-time heart ablation procedure for atrial fibrillation can improve outcomes. It is for people who are overweight or obese and have certain related health conditions.
StockholmAges 18 years+ - NCT07270068Recruiting
Diabetes remission through lifestyle change for Malaysian patients
This study tests whether a lifestyle program can help Malaysian adults with recently diagnosed type 2 diabetes and overweight or obesity achieve remission of their diabetes. If you qualify, you’ll get support to change your diet and activity habits.
Seremban, Negeri SembilamAges 18–70 - NCT06597617Recruiting
Exercise Program After Weight Loss Surgery
This study looks at how a personalized exercise program after weight loss surgery might reduce the impact of long-lasting environmental chemicals (called persistent organic pollutants) that are stored in body fat. It may help you lose weight more safely and improve your health after surgery.
NiceAges 18–55 - NCT06600100Recruiting
Inhibitory control training for weight management
This trial tests an online training program designed to improve your ability to resist cravings and make healthier choices. It may help you lose weight by strengthening the part of your brain that controls impulses.
GranadaAges 18–60 - NCT06893913Recruiting
Fasting plus exercise for dry eyes in psoriasis
This study tests whether adding a simple exercise (pyramidal exercise) to intermittent fasting can help reduce dry eyes in people who have psoriasis, prediabetes, and mild obesity. It aims to see if lifestyle changes can improve eye moisture.
Giza, DokkiAges 45–55 - NCT04657367Recruiting
Diabetes and prediabetes health tracking registry study
This study is a registry that collects information from people with diabetes, prediabetes, or normal blood sugar to better understand these conditions over time. It may help researchers learn which factors are linked to health changes, including future diabetes risk.
Bialystok, Podlaskie VoivodeshipAges Any age - NCT05340868Recruiting
Study body response to oral semaglutide in overweight adults
This study looks at how genetics may affect your body’s early response to oral semaglutide, a weight-related diabetes medicine. You may be considered if you are overweight (or overweight with prediabetes) and can safely take part in the research.
Bialystok, Podlaskie VoivodeshipAges 18–65 - NCT06534541Recruiting
Early eating study for toddlers and parents
This study looks at how genes, parenting, and eating habits interact in toddlers. Eligible families will have one study visit when the child is between 2.25 and 3 years old.
Hanover, New HampshireAges 2.3 years–6 years - NCT07268508Recruiting
Study of a gut-healthy diet after weight-loss surgery
This study tests how a special diet after weight-loss surgery affects gut bacteria, eating habits, and sense of taste and smell. Researchers want to see if this diet can improve long-term results.
LyonAges 25–65
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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.