Clinical trials
Overweight or Obesity clinical trials
Below are recruiting overweight or obesity clinical trials, each written for real people, not researchers. We’re tracking 1,535 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04375280Recruiting
Study of mobility problems in people with long-term illnesses
This study observes how people with chronic health conditions affect their ability to move and do everyday activities. It may help researchers better understand mobility limits and what factors influence them.
Clermont-FerrandAges 18–90 - NCT04422405Recruiting
One-anastomosis stomach bypass study for reflux and stomach changes
This study looks at how a one-anastomosis gastric bypass changes how your stomach and esophagus work, especially relating to acid reflux. You may be offered the planned surgery if you fit the weight and heartburn/reflux-related conditions, and the team will measure changes before and after.
Schlieren, Canton of ZurichAges 18–65 - NCT04431232Recruiting
Gastric banding during endoscopy to help with weight loss
This trial studies an endoscopic procedure that places a band inside the stomach to help reduce weight. You may be considered if your body weight is above a certain level and you’re able to safely undergo an endoscopy.
Giza, DokkiAges 18–65 - NCT04432025Recruiting
Medication after weight-loss surgery for type 2 diabetes
This trial looks at whether a specific diabetes medicine given after bariatric (weight-loss) surgery can improve blood sugar control in people with type 2 diabetes. You might be considered if you are eligible for this surgery and meet the weight criteria.
DublinAges 18 years+ - NCT04442334Recruiting
European registry for people with fatty liver
This registry collects health and lifestyle information from adults with suspected or confirmed fatty liver (NAFLD) to help researchers better understand the condition. You may be asked about diet, exercise, alcohol intake, and some liver-related tests.
AntwerpAges 18–100 - NCT04453072Recruiting
iPhone weight-loss app for teens and young adults after transplant
This study tests whether an iPhone weight-management app can help adolescents and young adults lose weight after a stem cell transplant. If you qualify, you’ll use the app and the team will track changes in weight.
Los Angeles, CaliforniaAges 13–30 - NCT04494048Recruiting
Registry for people considering endoscopic weight-loss procedures
This study keeps a record of people who are planning or recently had an endoscopic (camera-based) weight-loss procedure. The goal is to learn how these procedures work in real life and help doctors improve care.
New York, New YorkAges 18–89 - NCT04496895Recruiting
Orange peel drink study for reducing body fat
This trial looks at whether a fermented orange peel product can lower body fat in adults. It may help if you have higher body fat and/or fatty liver, and you meet safety and health limits.
Taipei, TaiwanAges 20–65 - NCT04526743Recruiting
Eating habits and weight changes after weight-loss surgery
This study looks at how eating behaviors change over time after bariatric (weight-loss) surgery. It may help researchers understand why some people lose more weight than others and how to improve support after surgery.
BarcelonaAges 18–70 - NCT04529889Recruiting
Study of gestational diabetes during pregnancy and child outcomes
This study follows pregnant people with gestational diabetes to see how it affects mothers and babies over time. The team may use this information to better understand risks and care for both you and your child.
Guangzhou, GuangdongAges Any age - NCT04551482RecruitingPhase 2
Oxytocin to help teens lose weight
This study tests whether the hormone oxytocin can help adolescents with obesity lose weight. You may be asked to stay on your usual diet and routines during the 18-week study to see how well the treatment works.
Boston, MassachusettsAges 10–18 - NCT04583150Recruiting
Study of fertility and ovarian reserve after weight-loss surgery
This study looks at how ovarian reserve (a fertility-related marker) changes in women after bariatric (weight-loss) surgery versus women with obesity who are not planning surgery. It may help doctors better understand fertility timing and risks around weight-loss treatment.
AngersAges 18–37 - NCT04634591Recruiting
Weight-loss surgery study for people with severe obesity
This trial studies bariatric (weight-loss) surgery and how well it helps people reach and keep a healthier weight. You may qualify if you have severe obesity and have not been able to maintain weight loss with other attempts, and if you can safely follow the study plan.
Bialystok, Podlaskie VoivodeshipAges 18 years+ - 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 - NCT04661449Recruiting
Lifestyle program for babies born larger than expected
This trial looks at whether a structured lifestyle program improves health and development outcomes for babies who were born larger than expected (large-for-gestational-age). If you qualify, the study may guide caregiver and family habits to support your child’s early outcomes.
Shanghai, Shanghai MunicipalityAges 1 day–1 month - NCT04735835Recruiting
Personalized diet testing using ZOE app and blood samples
This trial studies how different food compositions affect your body, using the ZOE testing program plus meals you eat and blood samples you collect. It may help you learn more about what foods work best for you, especially if you have a long-term health condition.
Needham, MassachusettsAges 18 years+ - NCT04752293Recruiting
Study of a kidney blood-pressure system in kids
This study looks at how a kidney-related blood-pressure system works in children and teenagers, comparing those with newly diagnosed primary (no known cause) high blood pressure to those with normal blood pressure. It may help doctors better understand childhood blood-pressure changes and guide future care.
Winston-Salem, North CarolinaAges 7–18 - NCT04755062Recruiting
Native-focused plant diet study for adults with BMI over 24
This trial tests whether a culturally relevant, plant-rich, micronutrient-dense diet can improve health for Native American adults. It may help with weight-related goals, but it requires weekly group coaching and specific medical and workplace criteria.
Flagstaff, ArizonaAges 18 years+ - NCT04805762Recruiting
Coach program for kids with overweight or obesity
This study tests a lifestyle coaching program delivered through “Your COACH Next Door” for children. It may help with weight and healthy habits by providing support to help kids adopt healthier routines.
Maastricht, LimburgAges Up to 18 years - NCT04812132Recruiting
Compare two types of weight-loss stomach surgery
This study compares two surgical methods used for weight loss: OAGB and a longer-limb Roux gastric bypass. It may help find which option works best for people with severe obesity and obesity-related health problems.
TartuAges 18–60 - NCT04812314Recruiting
Study how exercise changes body fat and metabolism
This study looks at how starting exercise changes the structure and function of body fat. It may help you understand how exercise affects things like cholesterol and blood sugar, even if you’re not currently exercising regularly.
Ann Arbor, MichiganAges 18–40 - NCT04851470Recruiting
Dental gum check in adults with obesity
This study looks at gum health in adults with obesity. It may help researchers understand how weight and related health factors affect periodontal (gum) status and what to monitor in bariatric care populations.
LondonAges 18 years+ - NCT04894838Recruiting
Testing a bypass revision surgery for weight regain
This study looks at whether a specific stomach bypass revision (a “distal gastric bypass”) can improve outcomes after Roux-en-Y gastric bypass when weight loss was not enough or weight was regained. You may be considered if you meet weight-loss goals criteria and can join follow-up and possibly surgery.
Arnhem, GelderlandAges 18–65 - NCT04913064Recruiting
White button mushroom supplement for inflammation in high-risk breast cancer
This trial tests whether a white button mushroom powder supplement can lower inflammation in postmenopausal women who have a high risk of breast cancer. If it helps, it could improve early prevention strategies for people at higher risk.
Duarte, CaliforniaAges 21 years+
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Common questions
- Are there clinical trials for overweight or obesity?
- Yes. Clin2 currently lists 1,535 recruiting overweight or 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 overweight or 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 overweight or 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.