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ClinicalTrials.gov public records Last synced Oct 8, 2026, 2:05 PM EDT

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Showing 145–167 of 167 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Glucose Tolerance Testing Clear all
Completed Phase 2 Interventional Results available

Ox Bile- Conjugated Bile Acids Sodium in Type II Diabetes Mellitus

NCT02871882
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obese, Overweight
Interventions
Gastric Emptying test, Mixed Oral Glucose Tolerance test, Conjugated bile acids sodium, Placebo
Radiation · Other · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 31, 2023 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Understanding the Relationship Between Inflammation and Insulin Resistance in the Adipose Tissue

NCT02378077
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Fat biopsy during scheduled abdominal surgery, Fat Aspiration, Fish Oil Supplement
Procedure · Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
30 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 18, 2020 · Synced Oct 8, 2026, 2:05 PM EDT
Completed No phase listed Observational

Glycemic Observation and Metabolic Outcomes in Mothers and Offspring

NCT04860336
View directory record Official record
Conditions
Gestational Diabetes, Pregnancy Related
Interventions
Observational
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
2,179 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
9
States / cities
New Haven, Connecticut • Honolulu, Hawaii • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Simulated Passive Jogging Device on Glucose Homeostasis, Muscle Strength and Endurance

NCT03550105
View directory record Official record
Conditions
Diabetes Mellitus, Glucose Metabolism Disorders, Physical Activity
Interventions
Gentle Jogger
Device
Lead sponsor
Sackner Wellness Products LLC
Industry
Eligibility
25 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Vitamin D Deficiency and Vitamin D Supplementation on Glucose Metabolism

NCT00749918
View directory record Official record
Conditions
Prediabetes, Vitamin D Deficiency
Interventions
Cholecalciferol (vitamin D3)
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 20, 2008 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Interactions of Human Gut Microbiota With Intestinal Sweet Taste Receptors

NCT03032640
View directory record Official record
Conditions
Obesity
Interventions
Oral Glucose Tolerance Test (OGTT), Assessment of dietary compliance, Stool sampling, Sodium Saccharin, Placebo, Lactisole
Other
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years to 45 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Feb 2, 2023 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluation of Kisspeptin Glucose-Stimulated Insulin Secretion With Oral Glucose Tolerance Test

NCT04958109
View directory record Official record
Conditions
Metabolic Diseases
Interventions
Oral Glucose Tolerance Test, Kisspeptin, Placebo
Diagnostic Test · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 8, 2026, 2:05 PM 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 15, 2025 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional

Blood Flow Responses to an Oral Glucose Tolerance Test in Type 2 Diabetes

NCT00972452
View directory record Official record
Conditions
Type 2 Diabetes, Insulin Resistance
Interventions
Exercise
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
30 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Oct 8, 2026, 2:05 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Physiological Effects of ANGPTL3 Variants in Humans

NCT04234724
View directory record Official record
Conditions
Hypocholesterolemia
Interventions
Kinetics test, oral fat tolerance test, and an oral glucose tolerance test.
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Oct 8, 2026, 2:05 PM EDT
Enrolling by invitation Not applicable Interventional

Pilot Study of Continuous Glucose Monitoring for Postpartum Glucose Screening

NCT07332416
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Continuous glucose monitoring for 14 days using the Freestyle LibrePro by Abbott
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
1,300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 8, 2026, 2:05 PM 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 5, 2024 · Synced Oct 8, 2026, 2:05 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 8, 2026, 2:05 PM EDT
Completed Phase 2 Interventional Results available

Treating Nonalcoholic Steatohepatitis (NASH) With Metformin

NCT00063232
View directory record Official record
Conditions
Hepatitis
Interventions
Metformin
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 20, 2011 · Synced Oct 8, 2026, 2:05 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Pathogenesis of the Cardiometabolic Risk in Youth With Type 1 Diabetes

NCT04101045
View directory record Official record
Conditions
Type 1 Diabetes, De Novo Lipogenesis
Interventions
Oral Glucose Tolerance Test
Diagnostic Test
Lead sponsor
Yale University
Other
Eligibility
13 Years to 22 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Oct 8, 2026, 2:05 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 8, 2026, 2:05 PM EDT
Suspended Not applicable Interventional

Insulin Sensitivity in Men With the Metabolic Syndrome

NCT00433173
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
intravenous glucose tolerance test, testosterone, anastrozole, goserelin acetate implant, aerobic capacity (VO2 Max), MRI, muscle biopsy, measurement of resting metabolic rate (energy expenditure), Dual energy x-ray absorptiometry, Fasting oral glucose tolerance test
Procedure · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
50 Years to 75 Years · Male only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 2, 2010 · Synced Oct 8, 2026, 2:05 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Opportunistic Screening for Prediabetes and Early Diabetes in Primary Care

NCT00787839
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Prediabetic State
Interventions
Glucose challenge test, Glucose tolerance test
Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
1,939 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 27, 2015 · Synced Oct 8, 2026, 2:05 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 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional

CGM Dynamic Index for Predicting Prediabetes in Cystic Fibrosis

NCT06642610
View directory record Official record
Conditions
Prediabetes, Cystic Fibrosis (CF), Cystic Fibrosis-related Diabetes
Interventions
CGM Dynamic Index (CDI)
Device
Lead sponsor
Indiana University
Other
Eligibility
12 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 8, 2026, 2:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Understand the Genetics of the Acute Response to Metformin and Glipizide in Humans

NCT01762046
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Glipizide, Metformin, Oral Glucose Tolerance Test
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
1,033 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2025
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 8, 2026, 2:05 PM 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 8, 2026, 2:05 PM EDT
Completed Not applicable Interventional

Heat Therapy and Cardiometabolic Health in Obese Women

NCT03644524
View directory record Official record
Conditions
Obesity, Polycystic Ovary Syndrome, Prehypertension, PreDiabetes, Cardiovascular Risk Factor, Metabolic Syndrome
Interventions
Heat therapy
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Oct 8, 2026, 2:05 PM EDT