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ClinicalTrials.gov public records Last synced Oct 11, 2026, 5:53 PM EDT

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Showing 97–120 of 146 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral glucose tolerance testing (OGTT) Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Biomarkers of Increased Free Living Sleep Time

NCT04214184
View directory record Official record
Conditions
Sleep Deprivation, Insufficient Sleep Syndrome, Sleep Wake Disorders
Interventions
Increased sleep duration
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 11, 2026, 5:53 PM EDT
Recruiting No phase listed Observational

Home-based Oral Glucose Tolerance Test for Type 1 Diabetes Screening

NCT07155252
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
GTT@Home
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
8 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Redox Imbalance and the Development of Cystic Fibrosis Diabetes

NCT02202876
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Cystic Fibrosis
Interventions
Oral Glucose Tolerance Test, High Glycemic Index Meal, Low Glycemic Index Meal, Test Soda, Fruit juice
Other
Lead sponsor
Emory University
Other
Eligibility
1 Year and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 4, 2020 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Phase 1Phase 2 Interventional

Metabolic Effects of Non-Nutritive Sweeteners

NCT01200940
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Sucralose, Aspartame, Acesulfame-Potassium, Control
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
6 Years and older
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 22, 2021 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacogenomics of the Variability in the In Vivo Response to Glucocorticoids

NCT03023891
View directory record Official record
Conditions
Glucocorticoids Toxicity, Glucose Intolerance
Interventions
Prednisone
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 4, 2020 · Synced Oct 11, 2026, 5:53 PM 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 2, 2017 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional

Oral Glucose Tolerance Testing Using Candy for Cystic Fibrosis

NCT04579939
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Candy Glucose Tolerance Test
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
10 Years to 21 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cognition and Magnetic Resonance Imaging of Brain Inflammation in Obesity

NCT04116229
View directory record Official record
Conditions
Obesity
Interventions
Oral glucose tolerance test, Cognitive testing, Magnetic resonance imaging
Procedure · Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 10, 2023 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Post-Prandial Liver Glucose Metabolism in PCOS

NCT03041129
View directory record Official record
Conditions
Polycystic Ovarian Syndrome, Obesity, Hepatic Steatosis
Interventions
oral glucose tolerance test, MRI of liver
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The HIV, Adipose Tissue Immunology, and Metabolism Study

NCT04451980
View directory record Official record
Conditions
Hiv, Diabetes Mellitus, Type 2
Interventions
Subcutaneous adipose tissue biopsy, CT scan, Oral glucose tolerance test, Blood collection
Procedure · Radiation · Diagnostic Test
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
172 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational

Pathogenesis of Youth Onset Type 2 Diabetes and Prediabetes

NCT03195400
View directory record Official record
Conditions
IGT - Impaired Glucose Tolerance, T2D
Interventions
Oral Glucose Tolerance Test, Hyperglycemic Clamp, Isoglycemic Intravenous Glucose Test, Hyperinsulinemic Euglycemic Clamp and 2H20
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
12 Years to 18 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Modulating Glucose Tolerance With Dietary Tyrosine

NCT03872557
View directory record Official record
Conditions
Glucose Tolerance
Interventions
Tyrosine (TYR) Supplementation
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2021 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effects of Altering Physical Activity on Cardiometabolic Health

NCT01879059
View directory record Official record
Conditions
Insulin Resistance
Interventions
Exercise
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
19 Years to 35 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Reproducibility and Clinical Utility of an Abbreviated Fat Tolerance Test

NCT04437459
View directory record Official record
Conditions
Dyslipidemias, Metabolic Syndrome
Interventions
High-fat shake, Pure glucose solution
Other
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 18, 2020 · Synced Oct 11, 2026, 5:53 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Diabetes/ Endocrine Surveillance in SDS

NCT04275479
View directory record Official record
Conditions
Shwachman-Diamond Syndrome
Interventions
Oral Glucose Tolerance Test, Modified Oral Glucose Tolerance Test, Modified Mixed Meal Tolerance Test, Continuous Glucose Monitor, Food Diary, Medical History Questionnaires
Diagnostic Test · Other · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
3 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Phase 4 Interventional Results available

Long Term Antihypertensive Exposure and Adverse Metabolic Effects: PEAR Follow-Up Study

NCT01409434
View directory record Official record
Conditions
Drug Induced Hyperglycemia, Secondary Hyperlipidemia
Interventions
Oral Glucose Tolerance Test
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2014 · Synced Oct 11, 2026, 5:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effect of Sitting and Moderate Exercise on Plasma Insulin and Glucose Responses to an Oral Glucose Tolerance Test

NCT04195165
View directory record Official record
Conditions
Sedentary Behavior, Insulin Sensitivity, Sedentary Lifestyle
Interventions
SIT, ACTIVE, EX
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Muscle OXPHOS and Nutrient Homeostasis

NCT02920671
View directory record Official record
Conditions
Mitochondrial Diseases, Obesity
Interventions
Tracer-enhanced oral glucose tolerance test (OGTT*), Muscle MRI, Dual energy x-ray absorptiometry (DXA), Questionnaires
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Oct 11, 2026, 5:53 PM EDT
Terminated Not applicable Interventional

Metabolic Syndrome in Bone Marrow Transplant Survivors

NCT00855244
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Diagnostic exams
Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
9 Years to 23 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 18, 2015 · Synced Oct 11, 2026, 5:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigation of the Ability of a Supplement to Increase Good Bacteria in the Human Intestine and Blood Sugar Levels

NCT01944904
View directory record Official record
Conditions
Pre-diabetic
Interventions
Sugar Pill, XOS 2.8
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
20 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2017 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational

Evaluating for Type-2 Diabetes in the Very Early Postpartum Period

NCT01988987
View directory record Official record
Conditions
Diabetes, Gestational, Prediabetic State, Glucose Metabolism Disorders, Diabetes Mellitus
Interventions
Inpatient Postpartum GTT
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Female only
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Oct 11, 2026, 5:53 PM EDT
Terminated Phase 3 Interventional

Randomization of Early Diabetes Screening Among Obese Pregnant Women.

NCT03116009
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Screening for diabetes with 1-hour GCT and HbA1
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 49 Years · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational

Oral Glucose Tolerance Testing After Gestational Diabetes

NCT02082301
View directory record Official record
Conditions
Gestational Diabetes, Pregnancy, Obesity
Interventions
Not listed
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
2
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 25, 2020 · Synced Oct 11, 2026, 5:53 PM EDT
Completed No phase listed Observational

Peri-operative Dynamics of the Growth Hormone Axis in Subjects With Acromegaly

NCT00921609
View directory record Official record
Conditions
Acromegaly
Interventions
Oral glucose tolerance test
Diagnostic Test
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 11, 2026, 5:53 PM EDT