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 1,474 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03514602Recruiting
Help quitting smoking to prevent childhood obesity
This study supports pregnant people who smoke to quit or cut down, using behavior-based coaching. It also measures how changes in smoking may help lower a child’s risk of developing obesity.
Buffalo, New YorkAges 18–39 - NCT03472157Recruiting
Bariatric surgery for severe NASH with advanced liver scarring
This study tests whether bariatric surgery (either sleeve gastrectomy or Roux-en-Y gastric bypass) improves severe nonalcoholic steatohepatitis (NASH) with advanced liver scarring in people who are obese. You may also need liver biopsies to confirm your liver disease before and after treatment.
LilleAges 18–65 - NCT03288207Recruiting
Mobile app for heart health in African American women
This study tests a mobile health app to help African American women with overweight or obesity in specific DC and Maryland neighborhoods improve their heart health. Participants will use the app and wear a wrist device to track activity, with the goal of reducing heart disease risk.
Bethesda, MarylandAges 21–75 - NCT03135730Recruiting
ROHHAD patient registry for rapid-onset obesity
This study is a registry that collects information from people diagnosed with, or suspected to have, ROHHAD. It can help researchers better understand the condition over time and improve future care.
Chicago, IllinoisAges Any age - NCT03296605Enrolling by invitation
Study of obesity treatment after bariatric or belly surgery
This trial looks at obesity care in people who have already had bariatric (weight-loss) surgery or certain abdominal surgery. It may help researchers understand what treatments or follow-up care could work best for you after surgery.
Nanjing, JiangsuAges 18–75 - NCT02674230Recruiting
Obesity and body clock registry for healthy aging
This study is a registry that collects health information to better understand how weight and your body’s daily rhythm may affect healthy aging. It may help researchers identify patterns linked to aging and future health risks.
TaoyuanAges 20 years+ - NCT03022682Recruiting
Study of inflammation and metabolism across diabetes and weight
This is an observational study that follows generally healthy adults to understand how inflammation, diabetes (type 2), and weight/metabolic health relate to each other. It may help researchers figure out why different groups (including different ethnic backgrounds) have different health risks.
San Francisco, CaliforniaAges 18–75 - NCT01084967Recruiting
Study genes behind obesity in young people from East China
This study looks at how genes may contribute to obesity in young people living in East China. If you meet the weight and background criteria and can consent, you may be able to help researchers learn more and improve care for obesity.
Shanghai, Shanghai MunicipalityAges 14–30 - NCT03481829Recruiting
Long-term study tracking health factors from pregnancy
This study follows pregnant mothers and their babies for years to understand how early life factors can affect health later. If you qualify, you and your child(ren) will be asked to stay in the research study for at least 3 years after delivery.
Phoenix, ArizonaAges 1 day–99 years - NCT07238556Recruiting
Digital exercise program for cardiovascular risk
This study tests a new digital tool that helps clinicians prescribe personalized exercise plans to patients with cardiovascular risk factors like high blood pressure, diabetes, or obesity. Participation involves using the tool and following an exercise plan for a few months to see if it improves health.
Farmington, ConnecticutAges 18–64 - NCT03197363Enrolling by invitation
Long-term study of adults living in Białystok
This study follows adults living in Białystok over time to learn about health and life patterns. If you’re invited to take part and agree, it may help researchers better understand community health.
BialystokAges 20–80 - NCT07770711Recruiting
Inositol and metformin with different diets for PCOS
This study compares two diet plans (Mediterranean and low-carb) along with the supplements inositol and metformin, to see which works better for weight and blood sugar control in women with PCOS and insulin resistance. It may help you manage PCOS symptoms and improve your body's response to insulin.
Diyarbakır, DiyarbakırAges 20–40 - NCT06970457Recruiting
Exercise, body fat, and hormones in men
This study investigates how exercise affects sex hormones in men with different body types. Participants will engage in a supervised exercise program to see how it interacts with body composition.
Stillwater, OklahomaAges 18–79 - NCT06007404Recruiting
Understanding metabolism and inflammation in teens
This study looks at how metabolism and inflammation relate to diabetes risk in teenagers. It may help researchers understand why some teens develop type 2 diabetes.
Ann Arbor, MichiganAges 14–18 - NCT02166372Recruiting
Testing weight-loss surgery vs standard care for type 2 diabetes
This study compares people with type 2 diabetes and higher body weight who meet criteria for metabolic (weight-loss) surgery versus people with mild obesity who do not. It aims to see whether surgery improves diabetes-related outcomes more than usual medical care.
Taoyuan CityAges 20–67 - NCT02811900Recruiting
Study of outcomes after weight-loss (bariatric) surgery
This study follows adults who have bariatric (weight-loss) surgery to see what outcomes they experience afterward. It may help doctors better understand how well the surgery works in real life.
StrasbourgAges 18 years+ - 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 - NCT03569735Recruiting
Elderly health survey in Nanshan, Shenzhen
This study follows people age 65 and older in Nanshan to learn about health over time using surveys and health samples. It may help researchers understand what supports healthy aging in the community.
Shenzhen, GuangdongAges 65 years+ - NCT03830879Recruiting
Pregnancy and child health follow-up study in Shenzhen
This study enrolls pregnant people early in pregnancy and follows their babies’ health through age 7. It may help researchers understand health and development patterns in Shenzhen families and improve future child health care.
Shenzhen, GuangdongAges 15–49 - NCT02037867Recruiting
Study your liver blood markers if you’re at risk
This study looks at how certain blood tests (liver biomarkers) change in people with higher risk for liver disease. It may help doctors understand who is developing liver problems earlier and what patterns in blood tests matter most.
Nottingham, NottsAges 18 years+ - NCT03934957Recruiting
Study of health in people living in Hamburg
This study follows adults living in Hamburg to better understand health and health-related factors over time. You may help researchers learn what influences health in this age group.
HamburgAges 45–74 - NCT04371042Recruiting
Study of liver disease and genes in people with fatty liver
This study collects information about metabolic and unexplained (cryptogenic) liver disease and looks at “omics” tests, which are lab tests that measure patterns in blood or tissue to learn what drives the disease. It may help researchers better understand fatty liver and related serious complications, like liver scarring and liver cancer.
Roma, Rome/lazio/italyAges 18 years+ - 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 - 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
Hear when a new Overweight or Obesity trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for overweight or obesity?
- Yes. Clin2 currently lists 1,474 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.