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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Leptin Clear all
Active, not recruiting Phase 2 Interventional Results available

Effect of Metreleptin Therapy in the Treatment of Severe Insulin Resistance

NCT00085982
View directory record Official record
Conditions
Severe Insulin Resistance
Interventions
Metreleptin
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
5 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 29, 2025 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Phase 2 Interventional Results available

Randomized, Placebo-Controlled Study of Leptin for the Treatment of HIV Lipodystrophy and Metabolic Syndrome

NCT00140244
View directory record Official record
Conditions
HAART-induced Lipodystrophy and Metabolic Syndrome
Interventions
r-metHuLeptin, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Sep 4, 2026, 3:13 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 4, 2026, 3:13 AM EDT
Completed Not applicable Interventional

Measuring Effectiveness in Sleep Apnea Surgery

NCT00518128
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Surgical OSA treatment, Positive Airway Pressure Therapy
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 21, 2012 · Synced Sep 4, 2026, 3:13 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 4, 2026, 3:13 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Effect on Body Weight of Leptin Administered in Conjunction With Pramlintide in Overweight and Obese Subjects

NCT00392925
View directory record Official record
Conditions
Overweight, Obesity
Interventions
pramlintide acetate 360 mcg, metreleptin, placebo-pramlintide 600 uL, placebo-metreleptin 1 mL, Pramlintide acetate 180 mcg
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
12
States / cities
DeLand, Florida • Chicago, Illinois • Indianapolis, Indiana + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Not applicable Interventional

Macronutrient Regulation of Ghrelin and Peptide YY

NCT02464514
View directory record Official record
Conditions
Obesity, Prader Willi Syndrome
Interventions
High carbohydrate meal, High fat meal
Other
Lead sponsor
Duke University
Other
Eligibility
5 Years to 17 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 9, 2015 · Synced Sep 4, 2026, 3:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Role of Serum Leptin Levels in Multiple Sclerosis Disease Activity While on Interferon Beta 1a (Rebif) Treatment

NCT01067573
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jun 17, 2012 · Synced Sep 4, 2026, 3:13 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Study of the Functional Magnetic Resonance Imaging Response to Leptin and Pramlintide

NCT00691158
View directory record Official record
Conditions
Obesity
Interventions
Pramlintide (Amylin), Placebo (Normal Saline), 2 Metreleptin, Leptin plus Pramlintide
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 15, 2022 · Synced Sep 4, 2026, 3:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Role of Leptin Receptors in NASH

NCT00583999
View directory record Official record
Conditions
Nonalcoholic Steatohepatitis, Metabolic Syndrome
Interventions
no interventions, only regular blood-draw
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparison of the Metabolic Effects of Fructose, Glucose, High Fructose Corn Syrup and Sucrose at Normal Population Consumed Levels in Adults Aged 20-60 Years Old

NCT01797042
View directory record Official record
Conditions
Obesity
Interventions
Dietary Compliance
Behavioral
Lead sponsor
Rippe Lifestyle Institute
Industry
Eligibility
20 Years to 60 Years
Enrollment
366 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Celebration, Florida
Source: ClinicalTrials.gov public record
Updated Sep 29, 2014 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effects of Leptin Treatment on Weight Loss

NCT00050791
View directory record Official record
Conditions
Obesity
Interventions
Leptin, Very Low Calorie Diet
Drug · Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
20 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 18, 2010 · Synced Sep 4, 2026, 3:13 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 4, 2026, 3:13 AM EDT
Completed Phase 2 Interventional Results available

Leptin in the Maintenance of Reduced Body Weight

NCT01155180
View directory record Official record
Conditions
Obesity
Interventions
Leptin, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 67 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2017 · Synced Sep 4, 2026, 3:13 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 4, 2026, 3:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Food, Adolescence, Mood, and Exercise

NCT02015377
View directory record Official record
Conditions
Overweight, Obesity
Interventions
High sugar versus low sugar meals
Other
Lead sponsor
University of Southern California
Other
Eligibility
14 Years to 17 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetics of Leptin Administration During Fasting

NCT00140205
View directory record Official record
Conditions
Energy Deficiency Due to Short-term Fasting
Interventions
r-metHuLeptin
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 30 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Sep 4, 2026, 3:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Sleep Duration on Eating and Activity Behaviors

NCT01030107
View directory record Official record
Conditions
Sleep, Obesity
Interventions
Increase Sleep, Decrease Sleep
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
8 Years to 11 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 4, 2012 · Synced Sep 4, 2026, 3:13 AM EDT
Withdrawn Phase 2 Interventional

Mechanisms of Metabolic Regulation of Resveratrol on Humans With Metabolic Syndrome

NCT00654667
View directory record Official record
Conditions
Insulin Resistance
Interventions
Placebo, Resveratrol
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
50 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 3, 2015 · Synced Sep 4, 2026, 3:13 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 4, 2026, 3:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Whey Protein Intake With and Without Exercise on Visceral Fat: The P+RISE Study

NCT01960335
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Whey Protein, Whey Protein and Resistance Exericse, Whey Protein and RISE exercise routine
Dietary Supplement · Other
Lead sponsor
Skidmore College
Other
Eligibility
30 Years to 60 Years
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Saratoga Springs, New York
Source: ClinicalTrials.gov public record
Updated Oct 9, 2013 · Synced Sep 4, 2026, 3:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Physiology of Human Brown Adipose Tissue

NCT04352244
View directory record Official record
Conditions
Adipose Tissue, Brown, Adipose Tissue, Obesity
Interventions
Fat biopsy, Blood sampling, Blood sample for DNA analysis
Procedure · Diagnostic Test · Genetic
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Sep 4, 2026, 3:13 AM EDT
Completed Phase 2 Interventional Results available

Extension Study of Protocol DFA102 to Examine the Long-Term Safety, Tolerability, and Effect on Body Weight of Pramlintide Administered in Combination With Metreleptin

NCT00819234
View directory record Official record
Conditions
Obesity
Interventions
Placebo, Pramlintide and Metreleptin
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
33
States / cities
Birmingham, Alabama • Phoenix, Arkansas • Santa Rosa, California + 30 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Sep 4, 2026, 3:13 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Leptin Levels in Papillary Thyroid Cancer

NCT01659385
View directory record Official record
Conditions
Thyroid Cancer, Papillary, Leptin Levels
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 75 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Sep 4, 2026, 3:13 AM EDT