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Showing 1–24 of 113 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Insulin tolerance test Clear all
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Pharmacogenetics of Response to Sitagliptin (PRS)

NCT06813014
View directory record Official record
Conditions
Diabetes
Interventions
Oral Glucose Tolerance Test
Procedure
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 3, 2026, 2:36 AM EDT
Not listed No phase listed Observational

Body Composition Assessment in Spinal Cord Injury

NCT00957762
View directory record Official record
Conditions
Diabetes Mellitus, Body Composition, Tetraplegia, Paraplegia, Spinal Cord Injury
Interventions
Body composition
Other
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2009 · Synced Sep 3, 2026, 2:36 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Eating Almonds Before a Meal to Control Blood Sugar

NCT07603739
View directory record Official record
Conditions
Glucose Control, Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Precision Medicine, Nutrition
Interventions
Premeal almond ingestion
Dietary Supplement
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
25 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 3, 2026, 2:36 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

Effects of Xenin-25 on Insulin Secretion and Gastric Emptying in Humans With and Without a Complete Truncal Vagotomy

NCT01951716
View directory record Official record
Conditions
Does the Vagus Nerve Mediate the Effects of Xenin-25
Interventions
Graded Glucose Infusion with Placebo, Graded Glucose Infusion with GIP Alone, Graded Glucose Infusion with xenin-25 alone, Graded Glucose Infusion with GIP plus xenin-25, Meal Tolerance Test with Placebo, Meal Tolerance Test with xenin-25
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Sep 3, 2026, 2:36 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 25, 2016 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Phase 2 Interventional

A Comparison of Postprandial Glucose After a MMTT, and the Metabolic Effects of Insulin Withdrawal in a Crossover Study in Subjects With Type 1 Diabetes

NCT04956263
View directory record Official record
Conditions
Diabetes, Diabetes Mellitus, Type 1, Type1diabetes, Diabetes Mellitus
Interventions
YG1699, Dapagliflozin
Drug
Lead sponsor
Youngene Therapeutics Inc., Ltd.
Industry
Eligibility
18 Years to 60 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chula Vista, California
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Phase 4 Interventional Results available

The Effect of Exenatide Compared to Lantus Insulin on Vascular Function in Type 2 Diabetes

NCT00353834
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Exenatide, Glargine Insulin
Drug
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 8, 2018 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Phase 1 Interventional

Glucose Metabolism in the Immediate and Short Term Follow up After Bariatric Surgery

NCT00488423
View directory record Official record
Conditions
Diabetes, Gastric Bypass
Interventions
Mixed Meal Tolerance test, Hyperglycemic clamp
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
19 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Sep 3, 2026, 2:36 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 6, 2026 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of Brain Function in Women With Insulin Resistant Polycystic Ovary Syndrome

NCT00670800
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Metformin
Drug
Lead sponsor
University of Michigan
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Sep 3, 2026, 2:36 AM 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 1, 2017 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Not applicable Interventional

Metformin and Rosiglitazone, Alone or in Combination, in HIV-Infected Patients With Insulin and Fat Abnormalities

NCT00015691
View directory record Official record
Conditions
HIV Infections, Lipodystrophy, Hyperinsulinemia
Interventions
Metformin hydrochloride, Rosiglitazone maleate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
34
States / cities
Birmingham, Alabama • Los Angeles, California • Menlo Park, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2013 · Synced Sep 3, 2026, 2:36 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 19, 2026 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Not applicable Interventional Results available

Effect of Chronic Incretin-based Therapy in Cystic Fibrosis

NCT01879228
View directory record Official record
Conditions
Cystic Fibrosis, Pancreatic Insufficiency
Interventions
Sitagliptin, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 7, 2022 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Not applicable Interventional Results available

Effects of Rosiglitazone on the Metabolic Phenotype of Impaired Glucose Tolerance in Youth

NCT00413335
View directory record Official record
Conditions
Obesity, Impaired Glucose Tolerance, Type 2 Diabetes Mellitus
Interventions
Rosiglitazone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
10 Years to 18 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 21, 2013 · Synced Sep 3, 2026, 2:36 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Small Extracellular Vesicles and Insulin Action

NCT05933707
View directory record Official record
Conditions
Obesity, Insulin Resistance, Metabolically Healthy Obesity, Obesity, Metabolically Benign
Interventions
People with Metabolically Unhealthy Obesity - Low Calorie Diet
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
25 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 3, 2026, 2:36 AM EDT
Withdrawn Phase 4 Interventional

Glycemic Profile in Women With Gestational Diabetes Treated With Glyburide

NCT01947699
View directory record Official record
Conditions
Gestational Diabetes
Interventions
Glyburide, Continuous glucose monitor
Drug · Device
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 10, 2016 · Synced Sep 3, 2026, 2:36 AM EDT
Active, not recruiting Not applicable Interventional

The TRIABETES - ARMMS-T2D Study: A Randomized Trial to Compare Surgical and Medical Treatments for Type 2 Diabetes

NCT01047735
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Roux-en-Y Gastric Bypass Surgery, Laparoscopic Adjustable Gastric Banding, Lifestyle Weight Loss Intervention
Procedure · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
25 Years to 55 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 3, 2026, 2:36 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 7, 2008 · Synced Sep 3, 2026, 2:36 AM 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 22, 2023 · Synced Sep 3, 2026, 2:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Neural Functioning of Feeding Centers in Obese Youth

NCT01808846
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
12 Years to 17 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 26, 2017 · Synced Sep 3, 2026, 2:36 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 7, 2016 · Synced Sep 3, 2026, 2:36 AM EDT
Completed Phase 2 Interventional

Chromium Effects on Insulin and Vascular Function in People at Risk for Diabetes

NCT00067626
View directory record Official record
Conditions
Obesity, Pre-diabetes, Insulin Resistance, Impaired Glucose Tolerance, Impaired Fasting Glucose
Interventions
Chromium
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 14, 2010 · Synced Sep 3, 2026, 2:36 AM EDT
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 30, 2023 · Synced Sep 3, 2026, 2:36 AM EDT