Study type
Weight loss and obesity studies recruiting now
Weight-management research includes trials of new medicines, devices, diets and lifestyle programs for people with overweight or obesity, and studies of weight-related conditions such as fatty liver disease.
365 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingPhase 2/Phase 3
Effectiveness of Alternative Therapies in Maintaining Weight Loss Achieved by GLP-1 Medications Post-Cessation
AgelessRx
- Location
- Chicago, IL
- Eligibility basics
- Ages 40–85
- Recruiting
Digital Wellness Nurse - FIT Families: Virtual Family Intervention for Adolescent Obesity
Machine and Human Interaction
- Location
- Charleston, SC
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Improving Glycemic Control With Electrical Stimulation
University of Texas, El Paso
- Location
- El Paso, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Investigation of Egg Intake and the Relationship Between Gut Microbiome, Metabolic, and Immune Profiles
University of Connecticut
- Location
- Storrs, CT
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Weight Loss Through Mayo Clinic Diet
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–64
- RecruitingHealthy volunteers
Neuromuscular Electrical Stimulation: A Novel Treatment for Improving Metabolism
University of Texas, El Paso
- Location
- El Paso, TX
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Diabetes and Heart Disease Risk in Blacks
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Early Tracking of Childhood Health Determinants (ETCHED) Study
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 0 mo–99
- RecruitingHealthy volunteers
PreventT2 Together: Examining the Efficacy of Couple-based Lifestyle Intervention to Prevent Type 2 Diabetes
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 14–18
- RecruitingHealthy volunteers
Genetic Risk, Parental Feeding Practices, and Appetitive Traits in Early Life
Trustees of Dartmouth College
- Location
- Hanover, NH
- Eligibility basics
- Ages 2–6
- RecruitingHealthy volunteers
Community Park-Based Programs for Health Promotion: Active Older Adults Prospective Cohort Study
Duke University
- Location
- Miami, FL
- Eligibility basics
- Ages 50–95
- RecruitingHealthy volunteers
The Interaction of Body Composition, Sex Hormones and Exercise in Men
Oklahoma State University
- Location
- Stillwater, OK
- Eligibility basics
- Ages 18–79 · Men only
- RecruitingHealthy volunteers
Studies of Skin Microbes in Healthy People and in People With Skin Conditions
National Human Genome Research Institute (NHGRI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–100
- RecruitingHealthy volunteers
Characterization of Patients With Uncommon Presentations and/or Uncommon Diseases Associated With the Cardiovascular System
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 1–100
- RecruitingHealthy volunteers
Heart Health Study in Washington D.C. to Develop a Community-Based Behavioral Weight Loss Intervention
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 19–85
- RecruitingHealthy volunteers
Children s Growth and Behavior Study
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 8–100
- RecruitingHealthy volunteers
Tailoring Mobile Health Technology to Reduce Obesity and Improve Cardiovascular Health in Resource-Limited Neighborhood Environments
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 21–75 · Women only
- RecruitingHealthy volunteers
Mechanisms Underlying Individual Variations of Taste and Smell in Obesity
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
A Study of Lung Cancer Screening in People With Unexplained Weight Loss
Memorial Sloan Kettering Cancer Center
- Location
- Basking Ridge, NJ + 7 other US sites
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Blood Collection Biorepository for Liver Disease Research
State University of New York at Buffalo
- Location
- Buffalo, NY
- Eligibility basics
- Ages 7+
- RecruitingHealthy volunteers
Family COMIDA (Consumo de Opciones Más Ideales De Alimentos) (Eating More Ideal Food Options)
Memorial Sloan Kettering Cancer Center
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
New Heart Imaging Techniques to Evaluate Possible Heart Disease
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Breathing & Blood Pressure
Florida State University
- Location
- Tallahassee, FL
- Eligibility basics
- Ages 18–45
Who these studies look for
Most of these studies set a BMI range and may exclude people taking certain weight-loss medicines or who have had bariatric surgery. Some require a weight-related condition such as type 2 diabetes or high blood pressure.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Can I join a weight loss study if I already take a GLP-1 medicine?
It depends on the study. Many exclude people currently or recently on weight-loss medicines; others are designed specifically for them. The listing’s eligibility criteria and the study team are the only reliable answer.