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ClinicalTrials.gov public records Last synced Oct 7, 2026, 5:18 AM EDT

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Showing 49–72 of 172 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Glucose Tolerance Test Clear all
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 7, 2026, 5:18 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Routine Validation and Reproducibility Testing of Laboratory Measures and Research Techniques Used for Metabolism Research (VAL)

NCT06286761
View directory record Official record
Conditions
Obesity
Interventions
endothelial cell collection
Other
Lead sponsor
Bettina Mittendorfer
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 7, 2026, 5:18 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Role of KATP Channel Loss in Type 2 Diabetes

NCT06830096
View directory record Official record
Conditions
Obesity and Type 2 Diabetes
Interventions
10 mg glipizide ingestion
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Snooze Control: Sleep Duration & Glucose Metabolism

NCT02583750
View directory record Official record
Conditions
Glucose Metabolism Disorders
Interventions
OGTT after deprived sleep first, OGTT after sufficient sleep first
Behavioral
Lead sponsor
Xuewen Wang
Other
Eligibility
18 Years to 25 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 22, 2015 · Synced Oct 7, 2026, 5:18 AM 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 7, 2026, 5:18 AM 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 7, 2026, 5:18 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 7, 2026, 5:18 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 7, 2026, 5:18 AM EDT
Completed Phase 1 Interventional

Effect of Ghrelin on Glucose Metabolism After Bariatric Surgery

NCT02953587
View directory record Official record
Conditions
Obesity
Interventions
Oral Glucose Tolerance Test (OGTT), Human Ghrelin, Saline
Procedure · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Oct 7, 2026, 5:18 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 7, 2026, 5:18 AM EDT
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 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study of Attitudes About the Risk of Developing Type 2 Diabetes

NCT00323349
View directory record Official record
Conditions
Prediabetic State
Interventions
Oral Glucose Tolerance Testing, Education tailored to learning style preferences
Procedure · Behavioral
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
18 Years and older
Enrollment
276 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
2
States / cities
Norfolk, Virginia • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 28, 2007 · Synced Oct 7, 2026, 5:18 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 13, 2025 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Lifestyle Factors on Neutrophil Migration Pilot Study

NCT02411318
View directory record Official record
Conditions
Neutrophil Chemotactic Response
Interventions
Exercise, ProLab 200mg caffeine capsule, Ethanol ingestion, Glucose Tolerance Drink
Behavioral · Drug · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 17, 2020 · Synced Oct 7, 2026, 5:18 AM EDT
Active, not recruiting No phase listed Observational

Strength and Muscle Related Outcomes for Nutrition and Lung Function in CF

NCT05639556
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
BMI and lean mass index from DXA, Anthropometric Measurements, Hand-grip strength, Six-minute walk Test, Sit-to-Stand Test, Short physical performance battery (SPPB), BIA Sub-study, Accelerometry to assess physical activity, Gastrointestinal (GI) and nutrition questionnaires:, Psychosocial questionnaire: PHQ-8, Psychosocial questionnaire: GAD-7, Psychosocial questionnaire: The Treatment Self-Regulation Questionnaire (TSRQ), Psychosocial questionnaire: CF Fatalism Scale, Psychosocial questionnaire: Body Esteem Scale for Adolescents and Adults (BESAA), 12-month Questionnaire, Oral glucose tolerance testing (OGTT), Continuous glucose monitoring (CGM), Chest CT scans (When available within the past 6 months in medical records), Hologic Dual X-Ray Absorptiometry (DXA), Ultrasound Sub-study of assessment of appendage muscles using ultrasound, Psychosocial questionnaire: Hunger Vital Sign questionnaire, Respiratory symptom questionnaire: CRISS, Spirometry, Psychosocial questionnaire: Additional Health Questionnaire, CF Management Questionnaire, Food Frequency Questionnaire
Diagnostic Test · Other · Device
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
23
States / cities
Tucson, Arizona • Little Rock, Arkansas • Atlanta, Georgia + 19 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sugar-replacement Sweeteners, and Blood Sugar Control

NCT01128829
View directory record Official record
Conditions
Obesity
Interventions
Water, Sucralose
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years to 40 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 22, 2014 · Synced Oct 7, 2026, 5:18 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Gender-Affirming Hormone Therapy Among Transgender Women

NCT04128488
View directory record Official record
Conditions
Transgender Women, HIV/AIDS, Cardiovascular Diseases, Metabolic Disease, Coagulopathy
Interventions
Abdominal MR Imaging, Cardiac MRI/MRS, Oral Glucose Tolerance Testing, Whole Body, Lumbar Spine, and Hip DEXA Imaging
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
16 Years to 99 Years · Male only
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 18, 2025 · Synced Oct 7, 2026, 5:18 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 14, 2013 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Fluid Milk in Attenuating Hyperglycemia and Hypertriglyceridemia After Meal

NCT02894112
View directory record Official record
Conditions
Oral Glucose Tolerance Test, High Fat Tolerance Test
Interventions
non-fat milk, carbohydrate control beverage, caloric control beverage
Dietary Supplement
Lead sponsor
University of Texas at Austin
Other
Eligibility
20 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 9, 2016 · Synced Oct 7, 2026, 5:18 AM 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 7, 2026, 5:18 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 7, 2026, 5:18 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Blood Sugar Take Care and Glucose Metabolism

NCT01554020
View directory record Official record
Conditions
Prediabetes
Interventions
Blood Sugar Take Care, Placebo
Dietary Supplement
Lead sponsor
NewChapter, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2013 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Phase 4 Interventional Results available

Acute Effect of Exenatide on Brain Glucose Metabolism

NCT01588418
View directory record Official record
Conditions
Impaired Glucose Tolerance (IGT), Diabetes
Interventions
Exenatide, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2017 · Synced Oct 7, 2026, 5:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Vitamin D Supplementation on Oral Glucose Tolerance Among Obese Adolescents

NCT01856946
View directory record Official record
Conditions
Insulin Resistance
Interventions
4,000 IU vitamin D3
Dietary Supplement
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
9 Years to 19 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 10, 2016 · Synced Oct 7, 2026, 5:18 AM EDT