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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Genetic Obesity Clear all
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Project 1: Diet and Exercise Modulate the Sperm Epigenome in Men

NCT04175678
View directory record Official record
Conditions
Healthy Lifestyle, Obese, Men
Interventions
Diet, Exercise, Standard care
Other
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Not applicable Interventional

A Novel Approach to Reducing Adiposity Among Young Men

NCT04267263
View directory record Official record
Conditions
Weight Loss, Men, Lifestyle Risk Reduction, Cardiovascular Diseases, Obesity
Interventions
Self-guided lifestyle intervention
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 25, 2021 · Synced Sep 24, 2026, 1:23 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Routine Validation and Reproducibility Testing of Laboratory Assays and Research Techniques Used for Endocrine, Cardiometabolic, and Musculoskeletal Disorder Research (VALD)

NCT07083557
View directory record Official record
Conditions
Obesity and Obesity-related Medical Conditions, Diabetes, Atherosclerotic Disease, Heart Failure, MASH, Sarcopenia, Osteoporosis, Hyperparathyroidism, Hypoparathyroidism, Ischemic Heart Disease, Cystic Fibrosis (CF), Chronic Kidney Disease(CKD), Osteopenia, Cachexia
Interventions
Endothelial cell collection
Other
Lead sponsor
Bettina Mittendorfer
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2030
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Recruiting Phase 4 Interventional

Tirzepatide in PWS, HO and GNSO

NCT06901245
View directory record Official record
Conditions
Prader-Willi Syndrome, Hypothalamic Obesity, Obesity/Therapy
Interventions
Tirzepatide
Drug
Lead sponsor
Grace Kim
Other
Eligibility
18 Years to 26 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
Saint Paul, Minnesota • Nashville, Tennessee • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 24, 2026, 1:23 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Williams Syndrome Strength, Hormones, Activity & Adiposity, DNA Programming, Eating Study

NCT03758651
View directory record Official record
Conditions
Williams Syndrome, Lipedema
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 18, 2023 · Synced Sep 24, 2026, 1:23 PM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Molecular and Clinical Profile of Diabetes Mellitus and Its Complications

NCT01105858
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Diabetic Nephropathy, Obesity
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 99 Years
Enrollment
2,310 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2010
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Terminated Phase 2 Interventional Results available

Cannabidiol Oral Solution for the Treatment of Patients With Prader-Willi Syndrome

NCT02844933
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Cannabidiol, Placebo
Drug
Lead sponsor
Radius Pharmaceuticals, Inc.
Industry
Eligibility
8 Years to 17 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
7
States / cities
Tucson, Arizona • San Diego, California • Iowa City, Iowa + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced Sep 24, 2026, 1:23 PM EDT
Enrolling by invitation Phase 2 Interventional

Setmelanotide to Treat Obesity in a Patient With Pseudohypoparathyroidism Type 1a (PHP1a)

NCT07496463
View directory record Official record
Conditions
Pseudohypoparathyroidism Type 1a, Obesity
Interventions
Setmelanotide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Completed No phase listed Observational

Adrenal Hyperplasia Among Young People With PCOS

NCT01313455
View directory record Official record
Conditions
Adrenal Hyperplasia, Polycystic Ovarian Syndrome, Oligomenorrhea, Obesity, Hyperandrogenism
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
16 Years to 29 Years · Female only
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 30, 2019 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Understanding the Role of Gut Microbiota in Hyperphagia in Prader-Willi Syndrome

NCT05541003
View directory record Official record
Conditions
Prader-Willi Syndrome, Obesity
Interventions
NBT-NM108
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 35 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Sep 24, 2026, 1:23 PM EDT
Not yet recruiting No phase listed Observational

A Natural History of Genetic and Environmental Predictors of Pubertal Timing Among Youth With Obesity

NCT07437976
View directory record Official record
Conditions
Obesity
Interventions
Weight loss intervention, No Weight loss intervention
Behavioral
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
5 Years to 12 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2036
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

A Study to Assess RAD011 (Cannabidiol Oral Solution) for the Treatment of Participants With Prader-Willi Syndrome

NCT05098509
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
RAD011, Placebo
Drug
Lead sponsor
Radius Pharmaceuticals, Inc.
Industry
Eligibility
8 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
8
States / cities
Los Angeles, California • San Diego, California • Iowa City, Iowa + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2023 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Integrating the Genetic and Metabolic Faces of Obesity

NCT00285844
View directory record Official record
Conditions
Insulin Resistance, Obesity, Metabolic Syndrome
Interventions
weight loss, thiazolidinedione
Behavioral · Drug
Lead sponsor
Stanford University
Other
Eligibility
30 Years to 65 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2024 · Synced Sep 24, 2026, 1:23 PM EDT
Terminated Phase 3 Interventional

The Hunger Elimination or Reduction Objective (HERO ) Open -Label Extension (OLE) Trial

NCT07197034
View directory record Official record
Conditions
Hyperphagia, Prader-Willi Syndrome, Hyperphagia in Prader-Willi Syndrome
Interventions
ARD-101
Drug
Lead sponsor
Aardvark Therapeutics, Inc.
Industry
Eligibility
13 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
16
States / cities
Birmingham, Alabama • Orange, California • Palo Alto, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Impact of the Severity of Pediatric Psoriasis on Childhood Body Mass Index

NCT00879944
View directory record Official record
Conditions
Psoriasis, Atopic Dermatitis
Interventions
Blood pressure, Height, Weight, BMI, Waist Circumference
Other
Lead sponsor
Northwestern University
Other
Eligibility
5 Years to 17 Years
Enrollment
409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
9
States / cities
San Diego, California • San Francisco, California • Stanford, California + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Not applicable Interventional

Time Restricted Feeding in Autosomal Dominant Polycystic Kidney Disease

NCT04534985
View directory record Official record
Conditions
Polycystic Kidney, Autosomal Dominant
Interventions
Dietary
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 9, 2023 · Synced Sep 24, 2026, 1:23 PM EDT
Enrolling by invitation Phase 3 Interventional

A Study of Pitolisant in Participants With Prader-Willi Syndrome

NCT07219485
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
7 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Morrisville, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Dietary, Physiological, Genetic, and Behavioral Predictors of Health in a Young, Ethnically-Mixed Population

NCT00945633
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
20 Years to 35 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2030
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Gender and Culturally Specific Approach to Reduce NAFLD in Mexican-American Men

NCT04186260
View directory record Official record
Conditions
NAFLD
Interventions
NAFLD-specific weight loss intervention, Wait-list control
Behavioral · Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 64 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 23, 2025 · Synced Sep 24, 2026, 1:23 PM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Free Fatty Acids, Body Weight, and Growth Hormones Secretion in Children

NCT01237041
View directory record Official record
Conditions
Obesity, Short Stature, Growth Hormone Deficiency
Interventions
Niacin First, Placebo First, Dose-Establishing Study 1 Niacin 250mg, Dose-Establishing Study 1 Niacin 500mg, Dose-Establishing Study 2 Niacin 500mg
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
7 Years to 14 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2018 · Synced Sep 24, 2026, 1:23 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

PWS Outcomes Assessment Study

NCT04102839
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Interview
Other
Lead sponsor
Soleno Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 3, 2024 · Synced Sep 24, 2026, 1:23 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

A to Z Study Follow-up: Collection of DNA Data From Buccal Swabs

NCT00866151
View directory record Official record
Conditions
Weight Management, Diet Conditions, Dietary Recommendations, Overweight Management, Obesity
Interventions
Not listed
Lead sponsor
Interleukin Genetics, Inc.
Industry
Eligibility
25 Years to 50 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2009 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parent Supported Weight Reduction in Down Syndrome

NCT01256112
View directory record Official record
Conditions
Down Syndrome
Interventions
Parent Supported Behavioral Intervention, Nutrition/Activity Education (NAE)
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
13 Years to 26 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Sep 24, 2026, 1:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Understand the Genetics of the Acute Response to Metformin and Glipizide in Humans

NCT01762046
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Glipizide, Metformin, Oral Glucose Tolerance Test
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
1,033 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 24, 2026, 1:23 PM EDT