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ClinicalTrials.gov public records Last synced Sep 15, 2026, 6:49 AM EDT

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Showing 1–24 of 172 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: oral glucose tolerance test Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Association of Insulin Resistance and FGF21 on Cardiac Function in Pediatric Dilated Cardiomyopathy

NCT04222101
View directory record Official record
Conditions
Cardiomyopathy, Dilated, Cardiomyopathy, Hypertrophic, Insulin Resistance
Interventions
Oral glucose tolerance test
Diagnostic Test
Lead sponsor
Le Bonheur Children's Hospital
Other
Eligibility
13 Years to 18 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 19, 2021 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Results available

Vitamin D in Minorities With Prediabetes

NCT00876928
View directory record Official record
Conditions
Pre-diabetes
Interventions
vitamin D, placebo
Drug
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
18 Years to 90 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 13, 2013 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of 4 Weeks of L-Citrulline Supplementation on Macro- and Microvascular Function in Type 2 Diabetes

NCT06016478
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
L-citrulline, Placebo
Dietary Supplement
Lead sponsor
Texas Tech University
Other
Eligibility
40 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Phase 3 Interventional

US Inhaled Insulin Dose Titration Study

NCT00246623
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Exubera (inhaled insulin), 8-point glucose diary (to assess pre- and post prandial glucoses), Meal Tolerance Test, 24-hour continuous glucose monitoring (at select sites), Pulmonary Function Testing, Hypoglycemic Event Monitoring, Laboratory Assessments, Nutritional Counseling and Diabetes Education
Drug · Procedure · Behavioral
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
16
States / cities
Birmingham, Alabama • Los Angeles, California • New Britain, Connecticut + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2008 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Role of Glucagon In Glucose Control in Cystic Fibrosis Related Diabetes

NCT02398383
View directory record Official record
Conditions
Cystic Fibrosis, Cystic Fibrosis Related Diabetes
Interventions
Oral Glucose Tolerance Test, Mixed Meal Tolerance Test, Hypoglycemic Clamp
Other
Lead sponsor
Yale University
Other
Eligibility
12 Years to 45 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Sep 15, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Stable Isotopes- Adults With Obesity

NCT07020741
View directory record Official record
Conditions
Obese Patients (BMI ≥ 30 kg/m²), Glucose Metabolism, Protein Metabolism
Interventions
Indispensable Amino Acid Oxidation, Stable Isotope Oral Glucose Tolerance Test
Procedure
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
19 Years to 59 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Oral Glucose Tolerance Testing (OGTT) on Patients Taking Somatostatin Analogs

NCT01371045
View directory record Official record
Conditions
Acromegaly
Interventions
Oral Glucose Tolerance Test (OGTT)
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Dose Study Of PF-04308515 And Prednisone On Carbohydrate

NCT01199029
View directory record Official record
Conditions
Healthy
Interventions
PF-04308515, Prednisone
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 15, 2010 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Mixed Meal Challenge Study

NCT05087823
View directory record Official record
Conditions
Cardiovascular Diseases, Hyperlipidemias
Interventions
Lipid Challenge, Glucose Challenge, Mixed Meal Challenge
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 30, 2023 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults

NCT02364570
View directory record Official record
Conditions
Prediabetes, Cardiovascular Disease
Interventions
Glucose (100g), Glucose (75g), Whole Eggs, Egg Whites, Egg Yolks
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Brain Function in Women With Insulin Resistant Polycystic Ovary Syndrome

NCT00670800
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Metformin
Drug
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Sep 15, 2026, 6:49 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Blood Markers of Early Pancreas Cancer

NCT03568630
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, PreDiabetes, Pancreas Cyst, Chronic Pancreatitis, Genetic Predisposition to Disease, Inherited Disease
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
1,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2028
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Completed No phase listed Observational

Cardiovascular Disease Study

NCT00857194
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
2 hour Oral Glucose Tolerance Test, Fat Meal Test
Procedure
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
45 Years to 75 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
2
States / cities
West Orange, New Jersey • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 15, 2026, 6:49 AM EDT
Recruiting No phase listed Observational

Pregnancy and Postpartum CGM in GDM

NCT07174245
View directory record Official record
Conditions
Gestational Diabetes
Interventions
continuous glucose monitor
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Terminated Not applicable Interventional

Text-message Reminders to Increase Rates of Postpartum Diabetes Screening in Women With Gestational Diabetes

NCT02013557
View directory record Official record
Conditions
Diabetes, Gestational
Interventions
Text-message reminder
Behavioral
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older · Female only
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 5, 2016 · Synced Sep 15, 2026, 6:49 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Effects of Vitamin D and Omega-3 Supplementation on Telomeres in VITAL

NCT04386577
View directory record Official record
Conditions
Aging
Interventions
Vitamin D3 (cholecalciferol), fish oil
Dietary Supplement · Drug
Lead sponsor
Augusta University
Other
Eligibility
50 Years and older
Enrollment
1,054 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Phase 2 Interventional

Chromium Effects on Insulin and Vascular Function in People at Risk for Diabetes

NCT00067626
View directory record Official record
Conditions
Obesity, Pre-diabetes, Insulin Resistance, Impaired Glucose Tolerance, Impaired Fasting Glucose
Interventions
Chromium
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 14, 2010 · Synced Sep 15, 2026, 6:49 AM EDT
Terminated Not applicable Interventional

The Impact of Time Restricted Eating on Type 2 Diabetes

NCT06887543
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Meal timing, Time restricted eating, Usual feeding pattern.
Other
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Effect of Hydration Status on Substrate Oxidation at Rest and During Light and Moderate Exercise

NCT07298863
View directory record Official record
Conditions
Hydration Status, Substrate Metabolism During Exercise
Interventions
Part 1 - Exercise Trial, Part 1 - Experimental Trial, Part 2 - Oral Glucose Tolerance Test
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 35 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Valhalla, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Phase 3 Interventional

Supporting Transitions to Primary Care Among Under-resourced, Postpartum Women (STEP-UP)

NCT05852054
View directory record Official record
Conditions
Gestational Diabetes Mellitus, Hypertension in Pregnancy, Dysglycemia
Interventions
OB Provider Clinical Decision Support (CDS), Patient Education (OB Visit), Text messaging, Patient Outreach, Primary Care Provider Clinical Decision Support (CDS), Patient Education (Primary Care Visit)
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
2,306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Terminated Phase 4 Interventional Results available

Effect of Saxagliptin Treatment on Myocardial Fat Content, and Monocyte Inflammation

NCT01548651
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
Saxagliptin, Placebo
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
30 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2020 · Synced Sep 15, 2026, 6:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Phenotyping Genetic Risk for Type 2 Diabetes

NCT04024631
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Genetics
Interventions
75g glucose beverage (Glucola, Trutol, or similar brand), DXA, whole body
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
10 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rebreathing-induced Hypoxia and Glucose Levels

NCT05422430
View directory record Official record
Conditions
Hypoxemia
Interventions
Rebreathing-induced hypoxia, Spontaneous breathing
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 15, 2026, 6:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Insulin Resistance in Adolescents

NCT04089332
View directory record Official record
Conditions
Insulin Resistance
Interventions
Oral Glucose Tolerance Test (OGTT), 3 Tesla MRI, Intravenous Catheter, Cognitive Tests
Other · Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
12 Years to 18 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 4, 2024 · Synced Sep 15, 2026, 6:49 AM EDT