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Showing 1–24 of 100 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Leptin Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Calorie Restriction and Changes in Body Composition, Disease, Function, and Quality of Life in Older Adults

NCT00955903
View directory record Official record
Conditions
Obesity, Diabetes, Hypertension, Hyperlipidemia
Interventions
Exercise, Reduced Calorie Diet, Weight Maintenance Diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
65 Years and older
Enrollment
167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 4, 2017 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Leptin for Abnormal Lipid Kinetics in HIV Lipodystrophy Syndrome

NCT01511016
View directory record Official record
Conditions
HIV Lipodystrophy
Interventions
Human recombinant leptin ("metreleptin"), Placebo
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 64 Years · Male only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2016 · Synced Sep 3, 2026, 5:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

To Determine if Sleep Deprivation Results in Increased Esophageal Acid Exposure

NCT01093339
View directory record Official record
Conditions
Gastroesophageal Disease
Interventions
Not listed
Lead sponsor
Southern Arizona VA Health Care System
Federal
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 18, 2010 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Trial of Leptin Administration After Roux-en-Y Gastric Bypass

NCT00710814
View directory record Official record
Conditions
Overweight
Interventions
Leptin, Placebo
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
25 Years to 65 Years · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 15, 2015 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 1 Interventional

Glucose Metabolism in the Immediate and Short Term Follow up After Bariatric Surgery

NCT00488423
View directory record Official record
Conditions
Diabetes, Gastric Bypass
Interventions
Mixed Meal Tolerance test, Hyperglycemic clamp
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
19 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Sep 3, 2026, 5:08 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Leptin in Human Energy and Neuroendocrine Homeostasis

NCT00265980
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Subcutaneous Placebo, Leptin
Drug
Lead sponsor
Columbia University
Other
Eligibility
19 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 17, 2019 · Synced Sep 3, 2026, 5:08 AM EDT
Active, not recruiting Phase 3 Interventional

Study to Evaluate the Safety and Efficacy of Daily Subcutaneous Metreleptin Treatment in Subjects With PL

NCT05164341
View directory record Official record
Conditions
Partial Lipodystrophy
Interventions
metreleptin, Placebo
Drug
Lead sponsor
Chiesi Farmaceutici S.p.A.
Industry
Eligibility
12 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
13
States / cities
Birmingham, Alabama • Sacramento, California • Boca Raton, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

DAYBREAK: A Study of Setmelanotide in Participants With Specific Gene Variants in the Melanocortin-4 Receptor (MC4R) Pathway

NCT04963231
View directory record Official record
Conditions
Genetic Obesity
Interventions
Setmelanotide, Placebo
Drug
Lead sponsor
Rhythm Pharmaceuticals, Inc.
Industry
Eligibility
6 Years to 65 Years
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
21
States / cities
Scottsdale, Arizona • Suwanee, Georgia • Worcester, Massachusetts + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Benzoates - an Obesogenic Endocrine Disrupting Chemical

NCT03190785
View directory record Official record
Conditions
Obesity, Metabolic Syndrome
Interventions
Benzoic acid washout and exposure
Other
Lead sponsor
East Carolina University
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Crossover Study of the Acute Effects of Olanzapine in Healthy Volunteers

NCT00741026
View directory record Official record
Conditions
Insulin Resistance, Diabetes Mellitus
Interventions
Olanzapine 10 mg po qhs for 3 days, Placebo
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 30 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 13, 2014 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Early Phase 1 Interventional

Vitamin D, Leptin, Vitamin D Receptor Polymorphism, and Treatment-Related Morbidity in Ovarian Cancer

NCT03028519
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Vitamin D3
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 3 Interventional

A Study of the Safety of Mibavademab in Pediatric and Adult Participants Switching From Metreleptin to Mibavademab for the Treatment of Generalized Lipodystrophy (GLD)

NCT06548100
View directory record Official record
Conditions
Generalized Lipodystrophy
Interventions
mibavademab
Drug
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
2 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Bethesda, Maryland • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 3, 2026, 5:08 AM EDT
Recruiting Phase 3 Interventional

Open-label Extension Study to Evaluate Metreleptin in Patients With Partial Lipodystrophy

NCT06679270
View directory record Official record
Conditions
Familial Partial Lipodystrophy
Interventions
Metreleptin
Drug
Lead sponsor
Chiesi Farmaceutici S.p.A.
Industry
Eligibility
13 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
7
States / cities
Birmingham, Alabama • Boca Raton, Florida • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Combination of Insulin Sensitizer and Leptin as Treatment for the HAART -Induced Metabolic Syndrome

NCT00362440
View directory record Official record
Conditions
HIV Lipodystrophy
Interventions
Leptin, Pioglitazone or metformin, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Results available

Recombinant Human Leptin Therapy Effects on Insulin Action

NCT01207934
View directory record Official record
Conditions
Type Two Diabetes Mellitus
Interventions
placebo, low-dose leptin, high-dose leptin
Dietary Supplement · Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
25 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2000
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 8, 2015 · Synced Sep 3, 2026, 5:08 AM EDT
Terminated Phase 2 Interventional Results available

Pilot Study of Pioglitazone for the Treatment of Moderate to Severe Asthma in Obese Asthmatics (Glitz Asthma)

NCT00787644
View directory record Official record
Conditions
Asthma, Obesity
Interventions
Pioglitazone, Placebo
Drug
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Colchester, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 25, 2015 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Leptin for the Treatment of Hypothalamic Amenorrhea

NCT00130117
View directory record Official record
Conditions
Amenorrhea
Interventions
r-metHuLeptin, Oral Contraceptive Pills (OCPs), Placebo
Drug · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional Results available

CLINICAL PROTOCOL to Investigate the Long-term Safety and Efficacy of Metreleptin in Various Forms of Partial Lipodystrophy

NCT02654977
View directory record Official record
Conditions
Familial Partial Lipodystrophy, Nonalcoholic Steatohepatitis, NAFLD
Interventions
Metreleptin
Drug
Lead sponsor
University of Michigan
Other
Eligibility
5 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Sep 3, 2026, 5:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fat Tissue Microperfusion to Measure Leptin Secretion and Its Relations With Fat Breakdown in Humans

NCT00001722
View directory record Official record
Conditions
Healthy, Obesity
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Not listed
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brain Activation and Satiety in Children: Functional Magnetic Resonance Imaging

NCT02484976
View directory record Official record
Conditions
Childhood Obesity
Interventions
Family Based Behavioral Treatment
Behavioral
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
9 Years to 11 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 5, 2018 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Phase 2 Interventional

Leptin to Treat Lipodystrophy

NCT00005905
View directory record Official record
Conditions
Lipodystrophy
Interventions
hu Leptin (A-100)
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 3, 2026, 5:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Modeling the Epidemiologic Transition Study

NCT02925156
View directory record Official record
Conditions
Obesity, Diabetes
Interventions
Not listed
Lead sponsor
Loyola University
Other
Eligibility
18 Years to 50 Years
Enrollment
2,506 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2024
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 3, 2026, 5:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Increased Free Fatty Acids on Leptin Function

NCT01520454
View directory record Official record
Conditions
Obesity, Leptin Resistance
Interventions
Saline, Intralipid, Water, oral fat, Heparin
Drug · Dietary Supplement
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 10, 2018 · Synced Sep 3, 2026, 5:08 AM EDT
Completed No phase listed Observational

Pharmacodynamics of CNP During Growth Hormone Treatment

NCT01504802
View directory record Official record
Conditions
Pituitary Dwarfism, Idiopathic Short Stature
Interventions
Not listed
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
3 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Los Angeles, California • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 1, 2014 · Synced Sep 3, 2026, 5:08 AM EDT