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
- NCT05516576Recruiting
Weight-loss procedure plus diabetes care for type 2 diabetes
This trial studies whether an endoscopic (camera-guided) stomach tightening/suturing procedure plus standard diabetes care can improve health in people with type 2 diabetes and mild-to-moderate obesity. It compares this procedure to standard care alone to see which approach works better and is safe.
La TroncheAges 18–65 - NCT05554016Recruiting
Ultra-processed food study in kids with obesity
This study looks at how eating ultra-processed foods affects metabolism and body weight in children and teens with obesity, and compares them with healthy peers. Your participation may help scientists understand whether diet choices contribute to weight and metabolic problems.
NaplesAges 6–18 - NCT05554224Recruiting
Personalized treatment based on obesity-related fatty liver tests
This study uses multiple types of health data (“multi-omics”) to help choose a personalized treatment plan for people with obesity-related fatty liver disease. It may help match treatment to your biology to improve outcomes.
Reus, TarragonaAges 18 years+ - NCT05569681Recruiting
Two blood-thinner schedules for clot prevention in very obese surgery patients
This study compares two different schedules of bemiparin (a blood thinner) to prevent dangerous blood clots after surgery in people with very high body weight. It may help find the safest and most effective dose/timing for clot prevention around the time of surgery.
Erbil, Kurdistan RegionAges 18–90 - NCT05589688RecruitingPhase 1
Personalized acyclovir dosing in overweight and obese volunteers
This Phase 1 study tests how to adjust acyclovir dosing based on body weight and kidney function. It includes healthy volunteers across normal weight, overweight, and obesity levels to better understand how the drug moves through the body.
ToulouseAges 18–50 - NCT05608668Recruiting
Breathing and activity coaching for kids with obesity and mild asthma
This trial tests an “inspiratory pulmonary rehabilitation” program—guided breathing and exercise training—for children who have obesity and mild asthma. It may help improve breathing control and exercise ability by teaching safe, structured breathing and activity habits.
Durham, North CarolinaAges 8–17 - NCT05611697Recruiting
Compare two weight-loss surgeries for severe obesity
This trial compares two types of bariatric (weight-loss) surgery to see which helps people with severe obesity lose weight and stay healthy. You might be eligible if you’re between 20 and 60 and are already being referred for bariatric surgery after prior unsuccessful weight-loss attempts.
Tønsberg, VestfoldAges 20–60 - NCT05703347Recruiting
Mobile app coaching to improve sleep and prevent childhood obesity
This study tests a mobile health app that helps children get better sleep, aiming to support healthier weight over time. It is designed for children who are getting less sleep than recommended and are in the higher-but-not-highest weight range for their age.
Philadelphia, PennsylvaniaAges 8–12 - NCT05740254Recruiting
Compare early versus late eating times for teen obesity
This study tests whether having a shorter daily eating schedule earlier in the day works better than a later eating schedule for reducing weight and improving health in teens with obesity. Participants will also follow planned fasting (not eating) periods and complete regular check-ins.
Los Angeles, CaliforniaAges 12–21 - NCT05745441Recruiting
Dinner routine study for weight and prediabetes health
This study tests whether changing your dinner timing and routine can improve health related to weight and blood sugar in people with obesity and prediabetes (or healthy weight). You’ll follow a set dinner schedule and complete study visits while the team monitors outcomes.
Baltimore, MarylandAges 18–50 - NCT05747976Recruiting
Study for children with very high body size measurements
This study is building a program database for children who have unusually high body size measurements for their age. By collecting genetic and health information, researchers hope to better understand causes of obesity and guide care.
Houston, TexasAges Any age - NCT05753124Recruiting
How weight, diabetes, and bariatric surgery affect pregnancy
This study looks at how weight, blood-sugar problems, and past weight-loss surgery affect pregnancy outcomes. You may be able to help researchers understand what to expect and how to plan care during pregnancy.
LondonAges 18–50 - NCT05754645Recruiting
Study of gut microbiome in weight-related pregnancy outcomes
This study looks at differences in the gut’s living microbes (microbiome) in people who are trying to conceive or are early in pregnancy, and how that may relate to pregnancy outcomes. It may help researchers understand whether microbiome changes are linked to healthier—or more complicated—pregnancies.
Rotterdam, South HollandAges 18–45 - NCT05759637Recruiting
Tests treatments for diabetes, weight, and high cortisol levels
This trial studies people who have type 2 diabetes and excess body weight, looking at how high cortisol (a stress hormone) may be involved. If you qualify, you may get a study treatment designed to improve diabetes and weight-related health by targeting cortisol-related pathways.
MilanAges 18–75 - NCT05772052Recruiting
Study taste and eating changes in adults with obesity
This trial looks at how eating patterns and taste perception differ in people with obesity. It may help researchers understand what influences appetite and taste, which could improve future treatments.
MilanAges 18–60 - NCT05798676Recruiting
Study of pregnancy factors linked to a child’s growth
This study looks at breastfeeding mothers and how a mother’s pregnancy and health factors may relate to a child’s growth and body fat. You might be able to join if you were normal weight or overweight/obese before pregnancy and you meet the pregnancy and delivery health requirements.
La Plata, Buenos AiresAges 18–40 - NCT05804591RecruitingPhase 4
Pregabalin during weight-loss surgery to reduce pain
This trial tests whether pregabalin can help with pain control for people having laparoscopic sleeve gastrectomy (a weight-loss surgery). It may help reduce the discomfort around surgery and improve the overall recovery experience.
Warsaw, WarsawAges 18 years+ - NCT05857150Recruiting
Study tests exercise effects in adults with obesity
This study looks at how your body responds to exercise if you have obesity. It may help researchers understand which changes happen with exercise and how safe it is for people in your age group.
Rochester, MinnesotaAges 20–45 - NCT05859867Recruiting
Studying newborn and early-childhood community health
This study looks at how babies and young children (ages 0–5) in two local communities develop over time. It may help researchers understand community health needs and what supports work best for families.
NovaraAges 2 days–5 years - NCT05878912Recruiting
Obesity and weight loss in certain heart failure patients
This study looks at how higher body weight and weight loss affect people who have heart failure with preserved pumping strength. It uses heart scans to measure how the heart and body change, which may help guide future treatment plans.
OxfordAges 18–85 - NCT05906238Recruiting
Study to reduce harm from obesity stigma
This trial looks at ways to lessen the negative effects that people may experience from weight-related stigma. It’s meant to help improve well-being for people living with obesity.
Poitiers, VienneAges 18 years+ - NCT05908812Recruiting
Testing how blood sugar control links to a hormone in type 2 diabetes
This study looks at whether better blood sugar control changes levels of a hormone called irisin in people with type 2 diabetes and obesity, including those with or without age-related muscle loss (sarcopenia). Your results may help researchers understand the body’s response to diabetes and could guide future treatment ideas.
BariAges 60 years+ - NCT05917795Recruiting
Endoscopic stomach reduction for weight loss before kidney transplant
This trial tests an endoscopic procedure that helps reduce stomach size to support weight loss in people with severe kidney disease who may need a kidney transplant. It may help some patients meet transplant-center weight requirements and potentially improve readiness for transplant care.
RomeAges 18–70 - NCT05927519Recruiting
Compare a laryngoscope tool in obese vs nonobese men
This study compares how well a specific breathing tube placement tool (Airtraq) works in men who are obese versus men who are not, during planned surgeries. It may help improve the safety and ease of putting in a breathing tube.
IamitAges 18–80
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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.