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
Families in Balance: Enhancing Household Routines and Reducing Early Childhood Obesity Among Families With Low-income
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 2+
- RecruitingHealthy volunteers
RemI for Post-Bariatric Surgery Weight Regain
Temple University
- Location
- Chicago, IL + 1 other US site
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Examining Valence-based Effects in Self-Monitoring Feedback Messages
University of Virginia
- Location
- Charlottesville, VA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Assessments of Adipogenesis, Lipid Turnover and Cellular Composition in Adipose Tissue in Response to Endurance Exercise
AdventHealth Translational Research Institute
- Location
- Orlando, FL
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Role of Microvascular Insulin Resistance and Cardiorespiratory Fitness Diabetes
University of Colorado, Denver
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 30–55
- RecruitingHealthy volunteers
Preoperative Weight Loss for Open Abdominal Wall Reconstruction
Benjamin T. Miller
- Location
- Chicago, IL + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Efficacy Trial of Healthy Together ("Juntos")
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 12–15
- RecruitingHealthy volunteersPhase 2
Fasted vs. Fed State Exercise
Arkansas Colleges of Health Education
- Location
- Fort Smith, AR
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteersPhase 2/Phase 3
Single Nuclei RNA-seq to Map Adipose Cellular Populations and Senescent Cells in Older Subjects
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mountain West Prevention Research Center Core Research Project
Paul Estabrooks
- Location
- Salt Lake City, UT
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Postnatal Exercise to Activate Baby's Brown Fat
Joslin Diabetes Center
- Location
- Boston, MA + 1 other US site
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Predictors of Behavioral Obesity Treatment Outcomes
Rush University Medical Center
- Location
- Chicago, IL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Monitoring Eating Across Locations (MEAL) - Timing, Intake, and Mealtime Evaluation (TIME)
Penn State University
- Location
- State College, PA
- Eligibility basics
- Ages 6–9
- RecruitingHealthy volunteers
Fructose Intestinal Gluconeogenesis
Touro University, California
- Location
- Vallejo, CA
- Eligibility basics
- Ages 20–55
- RecruitingHealthy volunteers
CHIME: Comparing Health Interventions for Maternal Equity
Stanford University
- Location
- Flushing, NY + 2 other US sites
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
'Ai Pono Cooking Demonstrations
University of Hawaii
- Location
- Honolulu, HI + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
NDPP-NextGen: A Clinical Trial to Reduce Intergenerational Obesity and Diabetes Risks
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 18–39 · Women only
- RecruitingHealthy volunteers
Pistachio Intake and Nutrition-Related Outcomes in Individuals on GLP-1 Therapy
Ian J. Neeland, MD
- Location
- Clevland, OH
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Impact of Dietary Phosphate Excess on Exercise Capacity and Visceral Adiposity
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
CARBON: UAB Cardiovascular Research Biobank
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Influence of Honey-flavored Yogurt on Low-grade Inflammation and Gut Health in Middle to Older Aged Women.
University of California, Davis
- Location
- Davis, CA
- Eligibility basics
- Ages 45–65 · Women only
- RecruitingHealthy volunteers
WISE-2B Brain Study (Weight Loss Intervention Surgical Effects on Brain Function)
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 20–75
- RecruitingHealthy volunteers
Investigating the Link Between Type 2 Immunity and NAFLD in Human Obesity
Mayo Clinic
- Location
- Scottsdale, AZ
- Eligibility basics
- Ages 30–70
- RecruitingHealthy volunteers
Behavioral Weight Loss Intervention Utilizing Mobile Health Technology in Hematopoietic Stem Cell Transplant Patients
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 13–30
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.