Condition
Overweight and Obesity clinical trials and research
As of November 12, 2026, Find a Trial lists 63 Overweight and Obesity clinical trials that are recruiting, at sites in 21 countries (most in United States (31), China (10), Spain (3)). By phase: Phase 2 (5), Phase 1 (3), Phase 3 (2), Early Phase 1 (1). The most active sponsors are University of Utah (2), University of Hawaii (2), Universidad de Granada (2). There are also 7 NIH-funded research projects on Overweight and Obesity, with $1.9 million in listed awards. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 63Clinical trials
- 7NIH research projects
- 21Countries
Newest Overweight and Obesity clinical trials
All recruiting trials (63)
-
Nutrition support to improve dietary diversity in adults who are underweight or overweight/obese
A community-based nutrition program will be tested in adults in Cambodia to see if it improves dietary diversity and if the program is acceptable and feasible to run.
-
Hesperidin for better thinking in overweight older adults
In adults aged 55–75 who are overweight, taking hesperidin or a placebo for 10 weeks will show whether the citrus flavonoid can improve thinking skills like memory, attention, and problem-solving.
-
MR-based performance tests for overweight and obesity
This study tests mixed reality versions of mobility tests to see if they match conventional assessments in adults who are overweight or obese.
-
DA-302168S in adults with overweight or obesity
A phase 3 trial in China is testing whether DA-302168S helps people who are overweight or obese lose weight compared with a placebo.
-
Metabolic Health Trajectories in Overweight Chinese Adults
This observational study follows overweight and obese Chinese adults to see how metabolic health changes over five years and whether people stay healthy, develop diabetes, or have complications.
-
Blood-count inflammation scores (SII and SIRI) to predict metabolic complications in adults with overweight or obesity
This project will test whether two blood-count-based scores (SII and SIRI) can help predict metabolic complications and treatment response in adults with overweight or obesity.
-
4-week nightly ketogenic supplement to improve nighttime metabolism and muscle health
We will test whether taking a ketogenic nutritional supplement each evening for 4 weeks helps older adults who are overweight improve their daily energy metabolism patterns and muscle health.
-
Neuromuscular balance exercises for people with overweight or obesity
This project will test whether adding neuromuscular balance exercises to regular aerobic and strength training improves balance, functional capacity, and physical fitness in adults with overweight or obesity.
-
Genotype-based versus standard dietary counseling to reduce weight and body fat.
This test sees if dietary advice based on your genes helps Greek adults with overweight lose more weight and reduce body fat compared with standard dietary advice.
-
Intermittent cottonseed oil intake to improve cholesterol and metabolic risk
This trial will test whether taking cottonseed oil three times a week at two different doses can improve fasting and after-meal blood lipids and other risk markers in adults with high cholesterol or who are overweight.
-
LAE103 injections alone or with LAE102 for healthy overweight/obese adults and postmenopausal women
This study will test whether injections of LAE103, alone or combined with LAE102, are safe and how the body processes them in healthy overweight or obese adults and in healthy postmenopausal women.
-
Daily postbiotic gummy plus nutrition advice for adults with overweight or obesity
This project will test whether taking a daily postbiotic gummy together with nutritional advice helps adults with overweight or obesity improve body composition, glucose metabolism, and gut microbiota.
-
Hands-on cooking classes to help young adults with intellectual disabilities keep weight off
This program will test whether adding in-person cooking classes to a weight-loss plan helps young adults (18–35) with mild-to-moderate intellectual disabilities lose weight and keep it off.
-
Testing WVE-007 for adults with overweight or obesity
This study is testing a new drug called WVE-007 to see if it is safe and well-tolerated in adults who are overweight or obese.
-
Training to improve brain control and reduce excess weight
This study is testing whether a new brain training method combined with a special type of brain stimulation can help people with excess weight make healthier choices and improve their overall well-being.
-
Training to improve control over food cravings for people with excess weight
This study is testing whether a special training program that helps people control their food cravings can help those with excess weight improve their eating habits and lose weight.
-
Egg-derived peptide IRW tested for blood sugar, blood pressure, and weight.
This project will test whether a small peptide from egg white (IRW), given in a smoothie, can quickly lower blood sugar and blood pressure in adults who have or are at high risk for type 2 diabetes.
-
Cooking demonstrations to improve health in Native Hawaiians
This study is trying out cooking demonstrations to help Native Hawaiians manage heart and diabetes-related health issues by promoting traditional diets and healthier eating habits.
-
Improving health in Native Hawaiians through traditional diets and cooking
This study is testing if a program that promotes traditional Hawaiian diets and cooking can help Native Hawaiians with diet-related health issues improve their eating habits and overall health.
-
Choosing AVOID or RESIST to help weight management
Participants will test whether choosing a self-regulatory strategy (AVOID or RESIST) leads to better adherence to a weight-management program for overweight and obese adults.
-
Early time-restricted eating to support postpartum weight loss
This program will test whether an early time-restricted eating schedule helps postpartum women with overweight or obesity lose weight and is acceptable for them.
-
Investigating the impact of a GLP-1 medication on brain insulin response
This study is testing if a medication called semaglutide can change how the brain responds to insulin in people of different weights to see if it helps with thinking and eating habits.
-
Diet-management app and smart scale for weight loss in people with heart failure and obesity
This tests whether using a diet-management phone app at each meal plus a smart weight scale daily for 12 months helps people with heart failure and obesity live longer, avoid hospital stays, and feel less frail.
-
Improving health in patients with COPD and sleep apnea through telehealth lifestyle changes
This study is testing a telehealth program to see if it can help overweight and obese veterans with COPD and sleep apnea improve their health through lifestyle changes and support.
-
Comparing the effects of cottonseed oil and matched PUFA on cholesterol levels
This study is testing whether drinking meal replacement shakes with cottonseed oil can help lower cholesterol levels in adults at risk for heart disease compared to shakes with a different type of healthy fat.
-
Natural odor levels in spinal fluid after inhalation
This study will test whether inhaling a natural odor leads to detectable levels of that odor in the spinal fluid and blood of lean and obese adults undergoing a lumbar puncture.
-
Investigating insulin resistance using alpelisib in adults
This study is testing if a drug called alpelisib can help us understand how insulin works in healthy adults compared to those at risk for type 2 diabetes.
-
Effects of watermelon and low-fat cookies on health and wellness
This study is testing whether eating fresh watermelon can improve health and wellness, especially for skin, gut, and sexual health, compared to eating low-fat cookies in healthy adults.
-
Maternal fecal transplant for babies born by cesarean section
This trial will try giving a small fecal transplant from the mother to newborns delivered by elective C-section to see if it improves their gut microbiome and lowers the risk of later overweight or obesity.
-
Nutrition care for patients with chronic pain
This study is testing a new app that helps people with chronic pain improve their nutrition and overall health through a personalized program.
-
Using metformin to improve asthma control in overweight and obese adults
This study is testing if the diabetes drug metformin can help overweight or obese adults with asthma feel better and manage their symptoms more effectively.
-
Research on how obesity and bariatric surgery affect the body
This study looks at how obesity affects the body and how bariatric surgery changes things for people who are obese, comparing them to healthy volunteers.
-
Using engineering principles to help maintain weight loss
This study is testing a new way to help people keep off the weight they lost by using technology to track their habits and give them support when they're at risk of gaining it back.
-
Increasing sleep duration to improve health in people with obesity
This study is testing if getting an extra 2 hours of sleep each night can help people with obesity improve their health and insulin sensitivity.
-
Combining dietary nitrate with calorie restriction to improve cognitive and vascular function in older adults
This study is testing if drinking beetroot juice while following a calorie-restricted diet can help improve thinking and blood flow in healthy older adults who are overweight or obese.
-
An acceptance-based healthy lifestyle program for overweight adolescent girls
This study is testing a new healthy lifestyle program that helps overweight girls aged 14-19 learn to manage their weight and improve their health compared to a regular health education class.
-
Understanding how caveolin-1 deficiency affects weight loss with GLP-1 receptor agonists
This study is trying to see how a lack of caveolin-1 affects weight loss in overweight and obese adults using a specific weight loss medication called GLP-1 receptor agonists.
-
Exploring the links between oral bacteria, muscle blood flow, and fitness levels
This study is trying to see how oral bacteria and fitness levels affect blood flow to muscles in people.
-
Rehabilitation with Nordic Walking for overweight and obese patients
This study tests if Nordic Walking can help overweight and obese patients with diabetes and heart issues get fitter and feel better while also receiving standard rehabilitation support.
-
A program to help people lose weight through personalized diet and exercise
This study is testing if a personalized diet and exercise program can help people who are overweight or obese lose weight more effectively than a standard diet plan.
-
Improving cardiometabolic health through circadian interventions
This study is testing whether changing sleep habits and reducing nighttime light and eating can help people with overweight and obesity who don’t get enough sleep improve their health over eight weeks.
-
Using tirzepatide to improve metabolic health in people with obesity or overweight
This study is testing if tirzepatide can help people with obesity or being overweight improve their metabolic health and lose weight over 22 weeks.
-
App plus smart body fat scale program to help overweight people with schizophrenia or bipolar disorder lose weight
See if using the Huawei Health app together with a smart body fat scale helps overweight people with schizophrenia or bipolar disorder lose weight and stay involved in their care.
-
Managing weight gain during pregnancy with a new digital intervention
This study is testing a new digital program to help pregnant women who are overweight or obese manage their weight gain during pregnancy.
-
Weight loss before pregnancy to reduce childhood obesity risk
This study is testing if losing 10% of their weight before getting pregnant can help healthy couples with an overweight mother reduce the risk of their child becoming overweight later on.
-
Optimizing diet and physical activity for taxi drivers
This study is trying to help taxi drivers who are overweight or obese make healthier choices about their diet and exercise through personalized support and tools.
-
Using mobile health apps to help manage weight in people with obesity
This study is testing whether using a mobile health app can help people with obesity lose weight and improve their health over six months.
-
Understanding how obesity affects breathing and heart responses
This study looks at how being overweight affects breathing and heart responses during exercise to help understand the connection between obesity and heart health.
-
Health coaching for pregnant women to reduce postpartum weight retention
This study is testing a health coaching program for Black and Latinx pregnant women to see if it helps them keep off extra weight after having a baby.
-
Effects of dietary changes on food choices and brain function
This study is testing if changing diets can help overweight and obese adults make better food choices and improve their brain function.
-
Weight management combined with hormonal treatment for women with endometrial atypical hyperplasia
This study is testing if combining weight management with hormonal treatments can help obese women with endometrial atypical hyperplasia who want to keep their fertility have better treatment results and pregnancy chances.
-
Food prescriptions to help Latino families eat healthier
This study is testing a meal planning and grocery delivery service to see if it helps Latino families with overweight or obesity eat healthier and improve their health over six months.
-
Diabetes prevention program tailored for African Americans
This study is testing a diabetes prevention program designed specifically for African Americans to see if a culturally tailored approach helps them lose weight and attend the program better.
-
Comparing glycemic targets in overweight and obese women with gestational diabetes
This study tests whether setting stricter blood sugar goals during pregnancy helps overweight and obese women with gestational diabetes have better outcomes for themselves and their babies.
-
Effects of different exercise modes during pregnancy on childhood obesity
This study is testing how different types of exercise during pregnancy can affect the health of overweight and obese moms and their babies to see which workouts are best for preventing childhood obesity.
-
Investigating how exercise affects insulin resistance and heart function in diabetes
This study is testing if regular exercise can help people with type 2 diabetes improve their heart function and reduce insulin resistance.
-
Registry of patients visiting the Obesity Clinic
This study is creating a registry of people visiting the Obesity Clinic to gather information that can help improve treatment and care for obesity.
-
Examining how fat tissue expands during overeating
This study is testing how fat tissue in the body changes when people overeat for a short time to see how it affects their overall health, especially regarding obesity and metabolic issues.
-
Weight loss method for people with overweight or obesity in primary care
This study tests a new weight loss method called LEVA to see if it can help people with overweight or obesity in primary care lose weight and keep it off.
-
Study on how overweight and obesity affect puberty in children
This study looks at how being overweight or obese affects the timing of puberty in children aged 6 to 12 by tracking their growth and environment over three years.
-
Effect of time-restricted feeding on weight loss
This study is testing if eating within specific time limits can help people lose weight better than just cutting calories without time restrictions.
-
Observational study on pregnancy and child health in Shenyang, China
This study looks at how different factors affect the health of pregnant women and their children in Shenyang, China, by collecting information and samples from them over 18 years.
-
Comparing Liraglutide and Insulin Glargine for Type 2 Diabetes Management
This study is testing if adding a medication called Liraglutide to insulin can help overweight and obese people with uncontrolled type 2 diabetes manage their blood sugar better and avoid weight gain compared to using a different type of insulin alone.
NIH-funded research (7)
Early-stage science funded by the US National Institutes of Health. Most of these projects don't enroll patients, but they show what is being worked on.
-
Game-based mobile app to help pregnant women with overweight/obesity manage weight in Nepal
A new app designed for pregnant women in Nepal with overweight or obesity to help manage weight gain during pregnancy and reduce weight retention after birth.
-
Nutrition and exercise plan to help overweight cancer survivors, using multi-omics to tailor care
A cancer survivorship program combines a tailored diet and exercise plan with multi-omics data to personalize care for adults with overweight or obesity.
-
Game-based mobile app to help pregnant women with overweight/obesity in Nepal manage weight
A mobile app designed for pregnant women in Nepal who start pregnancy overweight or obese to help them manage weight gain and reduce postpartum weight retention.
-
Creating a program to help adults maintain weight loss and prevent regain
This study is all about helping adults who have lost weight keep it off for good by offering personalized support and strategies that adapt to their needs, making it easier for them to manage their weight in the long run.
-
Using multi-omics to improve nutrition for cancer survivors with overweight and obesity
This study is all about helping cancer survivors who are overweight or obese by creating a personalized nutrition and exercise program that uses their unique health information to improve their overall well-being.
-
How the timing and nutrient status of aerobic exercise affects energy metabolism in adults with overweight and obesity
This study is looking at how the time of day you exercise—morning or evening—and whether you've eaten before working out affects how your body burns energy, which could help people who are overweight or obese find better ways to lose weight and improve their health.
-
Improving emotional skills to help teens manage their weight
This study is all about helping teens aged 12 to 19 who are dealing with being overweight by teaching them how to manage their emotions better, which can lead to healthier eating and more active lifestyles.
Related topics
Quick answers
How many Overweight and Obesity clinical trials are recruiting right now?
63, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 21 countries. The most sites are in United States (31 trials), China (10 trials), Spain (3 trials), Turkey (Türkiye) (2 trials), Sweden (2 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 2: 5, Phase 1: 3, Phase 3: 2, Early Phase 1: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.