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 1,536 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05585190Recruiting
Sit-stand desk study for people at diabetes risk
This trial tests whether using a sit-stand desk at work helps people who are overweight and at risk for diabetes. Participants may be asked to change how much they sit during the workday to improve health markers.
Milwaukee, WisconsinAges 18–79 - NCT05589155Recruiting
Using a phone app to improve blood sugar and weight
This study looks at whether a mobile phone app can help people with type 2 diabetes improve their health habits, including blood sugar monitoring and weight. You may be able to join if you already check your blood sugar daily and are able to use a smartphone.
San Diego, CaliforniaAges 18–64 - NCT05602805Recruiting
Study using a health data bank for weight management
This study builds a data bank to help track how people manage overweight or obesity at the hospital. It may help improve care for future patients by learning what treatments and outcomes work best.
Québec, QuebecAges 18 years+ - NCT05623007Recruiting
Diet and gut bacteria study for vaccinated teens with COVID
This trial tests whether changing diet can shift gut bacteria in overweight or obese teens after COVID-19 vaccination. The goal is to see if dietary changes can affect health markers related to the gut and immune system.
Jakarta Pusat, DKI JakartaAges 12–17 - NCT05646901Recruiting
Study how gut bacteria may affect loss of eating control
This study looks at how gut bacteria and the brain may be involved when people struggle to control eating. It may help researchers understand the body’s signals behind eating control problems.
Girona, GironaAges 30–65 - NCT05651724Recruiting
MASH screening study for people with diabetes or obesity
This study screens participants for MASH (a type of liver fat inflammation) using information about your health and risk factors. It may help you and your care team learn whether you could have MASH and need follow-up.
Brussels, Vlaams-brabantAges 18–75 - NCT05653258RecruitingPhase 2/Phase 3
Study cells in fat tissue and aging cells in older adults
This study uses a special lab test on tiny samples from body fat to map different cell types and “senescent” (aging) cells. It may help researchers understand how aging and obesity are linked, which could guide future treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT05656807Recruiting
Weight management program for child care staff and families
This study tests a weight management program delivered through child care centers, involving teachers and parents. It aims to improve healthy habits for children ages 2–5 through changes in the child care setting.
Chapel Hill, North CarolinaAges 2 years+ - NCT05687188Recruiting
Study obesity links to pancreatic cancer in specific groups
This study looks at how weight and related body changes may lead to pancreatic tumors, focusing on people who are African American or Non-Hispanic White. It may help researchers better understand why pancreatic cancer risk differs between groups.
Tampa, FloridaAges 18 years+ - NCT05687604Recruiting
Telehealth program to reduce cancer risk behaviors
This trial offers a scalable telehealth (phone/video) program to help people improve cancer risk habits like low physical activity, higher body weight, and smoking. It may help by giving structured coaching and support in the privacy of your home.
Chicago, IllinoisAges 18 years+ - NCT05721976Recruiting
Grandmother–daughter lifestyle program for certain cancer survivors
This pilot study tests a supportive program for grandmothers who finished breast, endometrial, or ovarian cancer treatment and their adult daughters. It aims to encourage healthier habits, including physical activity, using phone-based support and Spanish/English materials.
Miami, FloridaAges 21 years+ - NCT05723679Recruiting
Breathing-targeted program to improve function in HFpEF
This trial studies a breathing-focused treatment to help people with HFpEF (a type of heart failure) feel and function better. It may help improve daily activity by addressing breathing limits that commonly come with this condition.
Dallas, TexasAges 55–90 - NCT05728697Recruiting
Test a liver ultrasound method to measure fat and stiffness
This trial tests a special ultrasound technique during an endoscopy to see how well it can detect changes in the liver from non-alcoholic fatty liver disease. It may help improve non-invasive assessment before or alongside a follow-up liver biopsy.
Boston, MassachusettsAges 18 years+ - NCT05744479RecruitingPhase 4
Metformin to reduce weight gain from antipsychotic medicines
This trial tests whether metformin can help adults with intellectual disability who gained weight from long-term antipsychotic medicines. If you qualify, you may be assigned metformin to improve weight and related health measures.
Toronto, OntarioAges 16–65 - NCT05746039RecruitingPhase 1/Phase 2
Testing semaglutide for advanced lung disease
This study checks whether semaglutide is safe and feasible for people with advanced lung diseases and higher body weight. It may help by testing a structured treatment approach, but it includes several health and safety limits.
Philadelphia, PennsylvaniaAges 18–80 - NCT05750732Recruiting
Study weight loss and a gene variant
This trial looks at how weight loss relates to a specific gene difference (CLOCK 3111T/C). You may be eligible if you’re in a certain age and body-mass range and don’t have conditions or medicines that could affect weight or metabolism.
AnkaraAges 20–50 - NCT05774652Recruiting
Teen study following mothers from an earlier pregnancy project
This study follows teenagers whose mothers took part in an earlier lifestyle-in-pregnancy study (started in 2007–2010). It may help researchers understand how that earlier study relates to teen health and development.
OdenseAges 13–65 - NCT05775627Recruiting
Study how sleep affects metabolism in healthy adults
This trial studies how changes in sleep and the body’s daily rhythm may affect metabolism (how your body handles energy and sugar). It is for generally healthy, medication-free young adults who follow a controlled diet and sleep schedule.
Portland, OregonAges 18–40 - NCT05775497Recruiting
Online weight-loss program for sexual minority women
This study tests an online weight-loss program, with added culturally tailored parts, for sexual minority women who want to lose weight. It may help by coaching healthier habits through email and internet tools.
Providence, Rhode IslandAges 18–70 - NCT05777928Recruiting
Tests satiety changes after bariatric surgery revision
This study looks at how feelings of fullness (satiety) change in people getting bariatric surgery—either a sleeve gastrectomy or a revision procedure. It may help improve how well weight-loss stays on track after surgery.
MilanAges 18–65 - NCT05783466Recruiting
Testing how dairy affects heart risk in people with high weight
This study looks at whether eating more dairy (from cow’s milk) changes markers linked to heart and metabolic risk in adults with higher body weight. It mainly aims to understand how diet affects the body’s metabolism and related risk factors.
Pierre-BéniteAges 18–70 - NCT05783765Recruiting
Food, genetics, and behavior study for healthy children
This study looks at how eating, body factors (like weight), and behavior may relate to genetics in healthy children. Your child’s participation could help researchers understand why eating habits differ between families.
Philadelphia, PennsylvaniaAges 5–7 - 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+ - NCT05801614Recruiting
Tested diet to help control glucose in early type 2 diabetes
This study tests whether carbohydrate or calorie restriction can help normalize blood sugar levels in people with relatively early type 2 diabetes. It may help those whose diabetes control is not yet fully under control but who do not have major recent heart problems.
StockholmAges 24–70
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Common questions
- Are there clinical trials for overweight or obesity?
- Yes. Clin2 currently lists 1,536 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.