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)
- RecruitingHealthy volunteers
Extracellular Vesicles, Insulin Action, and Exercise
Rutgers, The State University of New Jersey
- Location
- New Brunswick, NJ + 2 other US sites
- Eligibility basics
- Ages 30–80
- RecruitingHealthy volunteers
Pilot Test of Five Weight Neutral Interventions to Improve Health Among Adults of Higher Body Weight
The Miriam Hospital
- Location
- Providence, RI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Mixed Nut Consumption on Satiety and Weight Management
San Diego State University
- Location
- San Diego, CA
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Strength Training Response of Muscle in GLP-1 Users
Virginia Polytechnic Institute and State University
- Location
- Blacksburg, VA
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
Healthy Mom Zone Gestational Weight Gain Management Intervention 2.0
Penn State University
- Location
- University Park, PA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Nutrition and Obesity in Under-Represented Populations: Food Insecurity Research to Advance Science and Improve Health
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 1–2
- RecruitingHealthy volunteers
Pistachio Snacking and Metabolic Flexibility
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 25–45
- RecruitingHealthy volunteersPhase 2
Effectiveness Study of a Lifestyle Intervention Versus Metformin in Mothers With Recent Gestational Diabetes
George Washington University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Effects of Whole vs. Nonfat Milk Consumption on Body Composition in Children
Boston Children's Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 9–12
- RecruitingHealthy volunteers
Optimizing an Extended Care Intervention to Promote Weight Loss Maintenance
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of White Button Mushroom on Inflammation in Obese Postmenopausal Women at High Risk of Breast Cancer
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 21+ · Women only
- RecruitingHealthy volunteers
Optimal Digital Weight Loss Treatment for Rural Individuals
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
BrainWeighve App Feasibility Study
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 14–21
- RecruitingHealthy volunteers
Brain Health in Youth With Normal Weight, Overweight and Obesity at Risk for Type 2 Diabetes (T2D)
Washington University School of Medicine
- Location
- St Louis, MO + 1 other US site
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
High Fructose Diet, the Gut Microbiome, and Metabolic Health
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 25–45
- RecruitingHealthy volunteers
Microvascular Dysfunction in Obesity
Florida State University
- Location
- Tallahassee, FL
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE)
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 7–18
- RecruitingHealthy volunteers
The ADAPT Trial: Adapting Evidence-Based Obesity Interventions in Community Settings
Vanderbilt University Medical Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 6–12
- RecruitingHealthy volunteers
Effects of Assisted Robotic vs Laparoscopic Sleeve Gastrectomy
Ricard Corcelles
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Validation of a Novel Cerebellar-striatal Satiety Circuit in Humans
Brigham and Women's Hospital
- Location
- Belmont, MA + 1 other US site
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Craving Network Neurofeedback
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Brain Blood Flow and Lactate in Non-obese and Obese Subjects
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Primary Prevention of Obesity in American Indian Youth in Rural Tribal Schools
Northern Arizona University
- Location
- Flagstaff, AZ
- Eligibility basics
- Ages 8–10
- RecruitingHealthy volunteers
Developmental Trajectories of Reinforcer Pathology and Childhood Obesity
State University of New York at Buffalo
- Location
- Buffalo, NY
- Eligibility basics
- Ages 8–11
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.