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ClinicalTrials.gov public records Last synced Oct 5, 2026, 3:17 AM EDT

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Showing 97–120 of 167 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Glucose Tolerance Testing Clear all
Withdrawn Phase 2Phase 3 Interventional

The Use of Nutropin Depot in HIV-infected Adult Males

NCT00286676
View directory record Official record
Conditions
HIV Infection
Interventions
Nutropin, Oral Glucose Tolerance Test, Dual Energy X-ray Absorptiometry (DEXA), Computed Tomography (CT) Scan
Drug · Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
3
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 26, 2018 · Synced Oct 5, 2026, 3:17 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 8, 2008 · Synced Oct 5, 2026, 3:17 AM EDT
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 20, 2021 · Synced Oct 5, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Arginine Metabolism in Youth With Type 2 Diabetes

NCT05477134
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Stable isotope infusion, oral glucose ingestion, intravenous arginine bolus
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
12 Years to 20 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sucralose and Lactisole Additions to OGTT in Humans

NCT05900193
View directory record Official record
Conditions
Neat OGTT, OGTT With Added Sucralose, OGTT With Added Lactisole
Interventions
TAS1R2/3 agonist or antagoinst admixture to oral glucose tolerance test
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 70 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 12, 2023 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Brain Health in Youth With Normal Weight, Overweight and Obesity at Risk for Type 2 Diabetes (T2D)

NCT05277558
View directory record Official record
Conditions
Type2 Diabetes, Type 2 Diabetes Mellitus in Obese, Dysglycemia, Microvascular Complications, Brain Structure, Obesity, Childhood, Diabetes in Adolescence, Inflammation, Insulin Resistance, Overweight, Childhood, Cognitive Decline
Interventions
Observational
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
12 Years to 17 Years
Enrollment
117 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
2
States / cities
St Louis, Missouri • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effect of Lycopene and Isoflavones on Glucose Metabolism

NCT01377961
View directory record Official record
Conditions
Metabolic Syndrome, Diabetes Mellitus, Non-Insulin-Dependent
Interventions
Randomized pills either containing combination of lycopene and isoflavones (dietary supplements) or Placebo to be taken for 12 weeks, Screening, OGTT, Anthropometrics and Blood pressure, Blood Drawing
Drug · Other
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2015 · Synced Oct 5, 2026, 3:17 AM EDT
Completed No phase listed Observational

Assessing Insulin Sensitivity and Diabetes Risk in Childhood Cancer Survivors Treated With Abdominal Irradiation

NCT02248779
View directory record Official record
Conditions
Childhood Cancer Survivors Treated With Abdominal Radiation
Interventions
Not listed
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Ovarian Morphology and Theca Cell Androgen Production in Women With Polycystic Ovary Syndrome (PCOS)

NCT02145247
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
hCG
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 37 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Oct 5, 2026, 3:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prevalence of Carbohydrate Intolerance in Lean and Overweight/Obese Children

NCT01967849
View directory record Official record
Conditions
Obesity, Type 2 Diabetes
Interventions
Oral Glucose tolerance test
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
7 Years to 21 Years
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Early Investigation of Glucose Monitoring After Gestational Diabetes Pilot

NCT06184373
View directory record Official record
Conditions
Gestational Diabetes, Hyperglycemia
Interventions
Continuous glucose monitor, Oral Glucose Tolerance Test, Hemoglobin A1c
Device · Diagnostic Test
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 5, 2026, 3:17 AM 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 5, 2026, 3:17 AM EDT
Completed Not applicable Interventional Results available

Fasting Versus Fed: Effect of Oral Intake Prior to the Glucose Tolerance Test in Pregnancy

NCT04547023
View directory record Official record
Conditions
Gestational Diabetes, Diagnoses Disease, Pregnancy in Diabetic, Glucose, High Blood
Interventions
Fasting before gestational diabetes screen, Per oral intake of food and drink
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 21, 2022 · Synced Oct 5, 2026, 3:17 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Normal-weight Diabetes: Adipocyte-directed Therapy With Pioglitazone or Tirzepatide

NCT06657209
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Diabetes, Type 2 Diabetes, Pre Diabetes
Interventions
Insulin resistance testing, OGTT, Fat biopsy, DXA scan, MRI, 1H-MRS, Tirzepatide, Pioglitazone
Procedure · Radiation · Drug
Lead sponsor
Stanford University
Other
Eligibility
30 Years to 70 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Palo Alto, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Mechanisms for Activation of Beige Adipose Tissue in Humans

NCT04666636
View directory record Official record
Conditions
PreDiabetes
Interventions
Placebo, Mirabegron, Mirabegron 50 MG, Mirabegron 100 mg
Drug
Lead sponsor
Philip Kern
Other
Eligibility
35 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 5, 2026, 3:17 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 5, 2026, 3:17 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 5, 2026, 3:17 AM EDT