Obesity trials in United States

In United States 745 Also abroad 1999

109 of 745 trials · From ClinicalTrials.gov, checked 13 November 2026. Ask the study team whether a trial fits you.

No phaseNot yet taking people in United States
Assessing the Impact of Perceptions of Unpredictability on Objective Measures of Food Consumption and Metabolism
Where
Phoenix
Age
18 years to 60 years
People
110
Run by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
See details and how to joinNCT06690294
No phaseNot yet taking people in United States
Evaluation of the Clinical Spectrum of Diabetes and Obesity in Youth and Adults
Where
Bethesda
Age
8 years to 65 years
People
1,000
Run by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
See details and how to joinNCT07388537
No phaseNot yet taking people in United States
A Natural History of Genetic and Environmental Predictors of Pubertal Timing Among Youth With Obesity
Where
Research Triangle Park
Age
5 years to 12 years
People
400
Run by
National Institute of Environmental Health Sciences (NIEHS)
See details and how to joinNCT07437976
No phaseTaking people
Gut Microbiota in Metabolic Surgery
Where
Nashville
Age
21 years to 65 years
People
300
Run by
Vanderbilt University Medical Center
See details and how to joinNCT05000996
No phaseEnrolling by invitation
Bariatric Surgery Registry
Where
Richmond
Age
12 years to 75 years
People
8,000
Run by
Virginia Commonwealth University
See details and how to joinNCT01055054
No phaseTaking people
Characterization of Patients With Uncommon Presentations and/or Uncommon Diseases Associated With the Cardiovascular System
Where
Bethesda, Washington D.C.
Age
1 year to 100 years
People
5,000
Run by
National Heart, Lung, and Blood Institute (NHLBI)
See details and how to joinNCT01143454
No phaseNot yet taking people in United States
Clinical Research Trial to Study Insulin Sensitivity Using Automated Glucose Clamp Technology
Where
Webster
Age
18 years to 65 years
People
50
Run by
Profil Institut für Stoffwechselforschung GmbH
See details and how to joinNCT07913698
No phaseTaking people
Early Tracking of Childhood Health Determinants (ETCHED) Study
Where
Phoenix
Age
1 day to 99 years
People
1,500
Run by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
See details and how to joinNCT03481829
No phaseTaking people
Pregnancy 24/7 Offspring Study
Where
Iowa City, Morgantown, Pittsburgh
Age
0 years to 47 years
People
800
Run by
Kara Whitaker
See details and how to joinNCT07172880
No phaseNot yet taking people in United States
Brain and Obesity Longitudinal Development: Neurobiological Mechanisms of Semaglutide Treatment of Adolescent Obesity
Where
Boston
Age
12 years to 15 years
People
12
Run by
Erin Mauney
See details and how to joinNCT07911046
No phaseTaking people
Diabetes and Heart Disease Risk in Blacks
Where
Bethesda
Age
18 years to 70 years
People
2,000
Run by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
See details and how to joinNCT00001853
No phaseTaking people
Children s Growth and Behavior Study
Where
Bethesda
Age
8 years to 100 years
People
1,500
Run by
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
See details and how to joinNCT02390765
No phaseTaking people
Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
Where
Sioux Falls
People
20,000
Run by
Sanford Health
See details and how to joinNCT01793168
No phaseTaking people
Healthy Living BEYOND Weight Study
Where
Dallas
Age
18 years and over
People
1,000,000
Run by
American Heart Association
See details and how to joinNCT07075341
No phaseTaking people
Redefining Evaluation of Adiposity and Leanness: Broadening Objective Diagnostics for Obesity
Where
Boston, Menlo Park, Phoenix
Age
18 years and over
People
300
Run by
Foundation for the National Institutes of Health
See details and how to joinNCT07776678
No phaseTaking people
Evaluation of Children With Endocrine and Metabolic-Related Conditions
Where
Bethesda
Age
3 months to 100 years
People
15,000
Run by
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
See details and how to joinNCT02769975
No phaseTaking people
Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
Where
Ann Arbor
Age
14 years to 18 years
People
175
Run by
University of Michigan
See details and how to joinNCT06007404
No phaseTaking people
Community Park-Based Programs for Health Promotion: Active Older Adults Prospective Cohort Study
Where
Miami
Age
50 years to 95 years
People
1,000
Run by
Duke University
See details and how to joinNCT06604650
No phaseTaking people
Heart Health Study in Washington D.C. to Develop a Community-Based Behavioral Weight Loss Intervention
Where
Bethesda
Age
19 years to 85 years
People
200
Run by
National Heart, Lung, and Blood Institute (NHLBI)
See details and how to joinNCT01927783
No phaseTaking people
Mechanisms Underlying Individual Variations of Taste and Smell in Obesity
Where
Bethesda
Age
18 years to 65 years
People
350
Run by
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
See details and how to joinNCT04714892
No phaseTaking people
Blood Collection Biorepository for Liver Disease Research
Where
Buffalo
Age
7 years and over
People
1,000
Run by
State University of New York at Buffalo
See details and how to joinNCT03025074
No phaseTaking people
Breathing & Blood Pressure
Where
Tallahassee
Age
18 years to 45 years
People
80
Run by
Florida State University
See details and how to joinNCT05632406
No phaseEnrolling by invitation
Dietary Sugar Absorptive Phenotype for Prediction of Weight Loss Outcome
Where
Jacksonville
Age
18 years and over
People
52
Run by
Mayo Clinic
See details and how to joinNCT05408728
No phaseTaking people
Physical and Behavioral Traits of Overweight and Obese Adults
Where
Bethesda
Age
18 years to 100 years
People
2,000
Run by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
See details and how to joinNCT00428987
No phaseTaking people
Effects of Glucagon-like Peptide-1 (GLP-1) Agonist in Neuro-reproductive Function in Obese Adolescent Females With Polycystic Ovary Syndrome (PCOS)
Where
Jacksonville
Age
12 years to 18 years
People
20
Run by
Nemours Children's Clinic
See details and how to joinNCT07169136