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ClinicalTrials.gov public records Last synced Oct 20, 2026, 3:30 AM EDT

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Showing 1–24 of 169 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Glucose Tolerance Testing Clear all
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Glucagon-like Peptide 1, Glucose Metabolism and Gastric Bypass

NCT01803451
View directory record Official record
Conditions
Post-bariatric Surgery
Interventions
exendin -(9-39)
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2027
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced Oct 20, 2026, 3:30 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 May 1, 2023 · Synced Oct 20, 2026, 3:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Immediate Postpartum Glucose Tolerance Testing

NCT04199676
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Glucose tolerance test
Diagnostic Test
Lead sponsor
MemorialCare Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Sep 3, 2025 · Synced Oct 20, 2026, 3:30 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Transcriptional and Epigenetic Program of PCOS Women

NCT04034706
View directory record Official record
Conditions
PCOS
Interventions
DEXA, Magnetic Resonance (MR) Assessment of the Abdomen, MR assessment of Whole Body Fat, Adipose tissue biopsy, Oral glucose tolerance test
Other · Procedure
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Oct 20, 2026, 3:30 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Glycemic Index of Commonly Consumed Sweeteners

NCT02931578
View directory record Official record
Conditions
Healthy
Interventions
Glucose100, Glucose50, Glucose42, Oral Glucose Tolerance Test
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 26, 2019 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Phase 4 Interventional Results available

Reducing Risk of Type 2 Diabetes: Hydroxychloroquine Use in Pre-Diabetes

NCT01326533
View directory record Official record
Conditions
Pre-diabetes
Interventions
hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 85 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 26, 2016 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Prospective Evaluation of Pancreatic Function in Pancreas Transplant Recipients

NCT00571818
View directory record Official record
Conditions
Transplant, Diabetes
Interventions
Oral glucose tolerance test, IV Glucose Tolerance Test
Procedure
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2010
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Alpelisib in Healthy Volunteers

NCT05733455
View directory record Official record
Conditions
Insulin Resistance, Hyperinsulinemia, Dyslipidemias
Interventions
Alpelisib 150 mg [Piqray], 2 overencapsulated tablets (total: 300 mg), Placebo (microcrystalline cellulose), 2 capsules, FreeStyle Libre Pro, Oral glucose tolerance test (OGTT) with Trutol glucose beverage, BOOST Plus nutritional beverage
Drug · Device · Diagnostic Test + 1 more
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Oct 20, 2026, 3:30 AM EDT
Recruiting Not applicable Interventional

Early Detection of Gestational Diabetes Mellitus in Pregnancy

NCT05388643
View directory record Official record
Conditions
Gestational Diabetes Mellitus in Pregnancy, Pregnancy, High Risk
Interventions
Enhanced First Trimester GDM Screening, Routine Gestational Diabetes Screening
Diagnostic Test
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Metformin in Teens With Polycystic Ovary Syndrome (PCOS) on Oral Contraceptive Therapy

NCT00283816
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Metformin, Oral Contraceptive Pill, Lifestyle Management Program, Quality of Life Questionnaire, Oral Glucose Tolerance Test, Blood work, Abdominal Ultra Sound, Dual-energy x-ray absorptiometry (DEXA scan), placebo
Drug · Behavioral · Procedure
Lead sponsor
University of Rochester
Other
Eligibility
12 Years to 18 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 15, 2015 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose-dependent Effect of Grape Seed Extract on Glucose Control in People With Impaired Glucose Tolerance

NCT02254317
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
0 mg placebo, 300 mg GSE, 600 mg GSE, 900 mg GSE
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
40 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 28, 2021 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Results available

Postpartum Continuous Glucose Monitoring (CGM) Study

NCT05714761
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Dexcom glucose sensor
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Diabetes Prevention Trial of Type 1 Diabetes (DPT-1)

NCT00004984
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Parenteral Insulin, Close Observation, Oral Insulin, Placebo
Drug · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
3 Years to 45 Years
Enrollment
711 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1994 – 2003
U.S. locations
14
States / cities
Los Angeles, California • San Francisco, California • Stanford, California + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2020 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Results available

Impact of Inflammation on Reward Circuits, Motivational Deficits and Negative Symptoms in Schizophrenia

NCT03818516
View directory record Official record
Conditions
Schizophrenia
Interventions
Oral Glucose Tolerance Test (OGTT)
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 59 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
6
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Oct 20, 2026, 3:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Common Genetic Variation and Type 2 Diabetes

NCT00707616
View directory record Official record
Conditions
Pre-diabetes
Interventions
Oral glucose tolerance test
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
35 Years to 80 Years
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dopamine and Insulin Resistance

NCT00802204
View directory record Official record
Conditions
Obesity
Interventions
PET scan, Oral glucose tolerance test, MRI, Psychological scales to assess attitudes and behaviors related to eating and quality of life, Caloric Restriction
Radiation · Procedure · Behavioral + 1 more
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Oct 20, 2026, 3:30 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Continuous Glucose Monitoring for Various Degrees of Glucose Intolerance

NCT05491954
View directory record Official record
Conditions
Diabetes, Gestational
Interventions
Dexcom G6
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Oct 20, 2026, 3:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Targeting the Carotid Bodies to Reduce Disease Risk Along the Diabetes Continuum

NCT05219994
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Hyperoxia Exposure, Normoxia Exposure
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 20, 2026, 3:30 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 13, 2020 · Synced Oct 20, 2026, 3:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Composition & Function of Sarcoplasmic Reticulum in Persons With the Metabolic Syndrome

NCT02122666
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
muscle biopsy
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 26, 2024 · Synced Oct 20, 2026, 3:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Identification of Phenotypic Factors That Predict Success for Weight Loss and Long-term Weight Maintenance

NCT02043457
View directory record Official record
Conditions
Obesity
Interventions
phenotyping
Other
Lead sponsor
University of Michigan
Other
Eligibility
15 Years to 75 Years
Enrollment
3,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2030
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 20, 2026, 3:30 AM 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 20, 2026, 3:30 AM 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 20, 2026, 3:30 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Role of Sweetness in Glucose Regulation

NCT03844230
View directory record Official record
Conditions
Obesity
Interventions
Control - Inhibition, Experimental I- Inhibition, Experimental II- Inhibition, Control- Stimulation, Experimental I- Stimulation, Experimental II- Stimulation, Sensory Evaluation
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
21 Years to 40 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Champaign, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Oct 20, 2026, 3:30 AM EDT