Clinical trials
Obesity clinical trials
Excess body weight that increases the risk of many other health conditions. We’re tracking 1,500 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07409831Recruiting
Incretin drugs, diet, and exercise for weight loss
This trial tests whether combining a new type of weight-loss medication with nutrition advice and physical activity helps people with obesity lose more weight. It’s for adults who are about to start an incretin-based drug for the first time.
Québec, QuebecAges 18–70 - NCT07539415RecruitingPhase 1
Safety and effectiveness study of new injection in healthy adults
This study tests a new experimental injection in healthy volunteers to see if it's safe and how well the body absorbs it. Researchers will compare it with other similar treatments to understand how it works.
SeoulAges 19–64 - NCT07707778Enrolling by invitationPhase 4
Tirzepatide for Weight and Aging in People with HIV
This trial tests whether a weight-loss medicine called tirzepatide can slow biological aging and improve metabolism in people with HIV who are already on effective treatment. It may help you reduce weight and possibly reverse some signs of aging.
TaipeiAges 18 years+ - NCT05681468Recruiting
Ketogenic diet trial for blood sugar and inflammation outcomes
This study compares two versions of a ketogenic (very low-carb) diet to see how they affect blood sugar control and inflammation. It may help people with overweight or obesity who have pre-diabetes-level blood sugar understand which fat sources work better.
Edmonton, AlbertaAges 18–70 - NCT07097506RecruitingPhase 2
Ketone drink for liver fat and health
This study tests whether a daily ketone ester drink can reduce liver fat and improve metabolism in people with excess liver fat. You may join if you are 18–40, have overweight or obesity, and your liver has extra fat.
St Louis, MissouriAges 18–40 - NCT05799846Recruiting
Online strategies to help with weight loss
This study tests a cognitive (thinking-focused) approach delivered through the internet to help you lose weight. You may be eligible if you have overweight or obesity and can regularly complete online activities and visits.
Providence, Rhode IslandAges 18–70 - NCT06988462Recruiting
Bottarga supplement for metabolic health
This study tests a supplement called bottarga, made from fish eggs, to see if it improves cholesterol, blood sugar, or weight in people with metabolic problems like high cholesterol or prediabetes. It is a small pilot study for Massachusetts residents.
Sommerville, MassachusettsAges 18–60 - NCT07317310Recruiting
Joint health and weight loss study for knee osteoarthritis patients
This trial tests a joint health program for people with knee osteoarthritis and a BMI of 27 or higher. The goal is to see if it can improve knee pain and help with weight management.
Taipei, TaiwanAges 18–75 - NCT03025074Recruiting
Blood sample bank for liver disease research
This study collects blood samples to build a “biobank” (a stored library of samples) for researchers studying liver diseases like hepatitis, fatty liver disease, and liver cancer. It may help future testing and treatments by allowing scientists to study patterns in people with and without liver conditions.
Buffalo, New YorkAges 7 years+ - NCT03072537Recruiting
Growth monitoring using a doctor-based patient network
This study sets up a network to regularly track children’s growth based on routine doctor or pediatric visits. It may help researchers understand growth patterns and improve how growth is monitored over time.
Leipzig, SaxonyAges Up to 18 years - NCT03087032RecruitingPhase 4
Liraglutide injections vs insulin for uncontrolled type 2 diabetes
This trial compares two treatment approaches—liraglutide injections versus a specific insulin (glargine) injection—plus meal-time insulin dosing (“bolus”) in adults with overweight/obesity and type 2 diabetes that isn’t well controlled. The goal is to see which option works better and is safer for improving blood sugar.
Xiamen, FujianAges 18–75 - NCT03217656Recruiting
Jiaxing birth follow-up study for pregnant families
This study enrolls pregnant women in the Jiaxing area and follows them during pregnancy and after delivery to learn about mothers and babies. If you plan to stay involved through birth and follow-up, this may help researchers understand pregnancy and early childhood outcomes.
Hangzhou, ZhejiangAges Any age - NCT03298334RecruitingPhase 1/Phase 2
Testing vaginal bacteria transfer to newborns after C-section
This study looks at whether they can safely place “healthy vaginal bacteria” from the mother into the newborn after a scheduled C-section, and whether it improves the baby’s health. It only enrolls certain mothers and babies based on infection testing and other health factors.
Falls Church, VirginiaAges birth–50 years - NCT03331133Recruiting
Study of twins born in Guangzhou
This study focuses on twins who were born at Guangzhou Women and Children’s Medical Center. It aims to use pregnancy and baseline information to learn about twin outcomes and care, and it may help local doctors improve guidance for families in Guangzhou.
Guangzhou, GuangdongAges Up to 18 years - NCT03440177Recruiting
Study medicine absorption after weight-loss stomach surgery
This study looks at how your blood pressure medicine (ramipril) is absorbed and handled by the body after gastric bypass or sleeve gastrectomy. It may help improve how these medicines are used after weight-loss surgery.
TrondheimAges 18–70 - NCT03441451Recruiting
Bariatric Surgery Registry for people with high BMI
This registry collects information from people who have a higher body weight (BMI over 30). It may help researchers better understand bariatric surgery and outcomes for future care.
Melbourne, VictoriaAges 2–95 - NCT03448783Recruiting
Apixaban levels around bariatric surgery
This study checks how the blood-thinner apixaban behaves in your body before and after gastric bypass or sleeve surgery. Results may help doctors choose safer dosing around bariatric surgery.
TrondheimAges 18–70 - NCT03449472Recruiting
Study of quetiapine levels after weight-loss stomach surgery
This trial studies how quetiapine (a mental health medicine) is processed in the body after gastric bypass or sleeve gastrectomy. It may help doctors better adjust dosing after weight-loss surgery.
TrondheimAges 18–70 - NCT03449485Recruiting
Blood medicine study around weight-loss stomach surgery
This study looks at how a medicine (chlorprothixene) moves through the body before and after weight-loss surgery like gastric bypass or sleeve gastrectomy. It may help doctors understand the best timing and dosing of this medicine for people having these operations.
TrondheimAges 18–70 - NCT03455868Recruiting
Bone health check after bariatric surgery in people with diabetes
This study looks at how bariatric (weight-loss) surgery affects bone health in adults with type 2 diabetes. It may help doctors understand who needs extra bone protection after surgery.
Montreal, QuebecAges 18–60 - NCT03460327Recruiting
Study of candesartan blood levels around weight-loss surgery
This trial measures how the blood pressure medicine candesartan is absorbed in your body before and after gastric bypass or sleeve gastrectomy. It may help doctors predict the right dosing for people taking this medication after bariatric surgery.
TrondheimAges 18–70 - NCT03460366Recruiting
Bariatric surgery and how enalapril moves in the body
This study looks at how the blood-pressure medicine enalapril is absorbed and processed after gastric bypass or sleeve gastrectomy. It may help doctors better predict dosing and effects after weight-loss surgery.
TrondheimAges 18–70 - NCT03460314Recruiting
Testing buprenorphine absorption around stomach weight-loss surgery
This study checks how well buprenorphine (a medicine used for opioid dependence and pain in some cases) works in the body after gastric bypass or sleeve gastrectomy. It may help doctors better plan dosing and timing around weight-loss surgery.
TrondheimAges 18–70 - NCT03460379Recruiting
Bariatric surgery and how escitalopram is absorbed
This study looks at how a common antidepressant, escitalopram, moves through your body before and after gastric bypass or sleeve gastrectomy. Results may help doctors better choose dosing for people taking this medication around the time of weight-loss surgery.
TrondheimAges 18–70
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Common questions
- Are there clinical trials for obesity?
- Yes. Clin2 currently lists 1,500 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.