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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Insulin tolerance test Clear all
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 17, 2020 · Synced Sep 27, 2026, 8:44 AM EDT
Completed No phase listed Observational

Outpatient Characterization of the Variability of Insulin Secretory Parameters in the Meal Tolerance and the Maximal Stimulation Tests of Subjects With Type 2 Diabetes Mellitus

NCT02346344
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Not listed
Lead sponsor
Foundation for the National Institutes of Health
Other
Eligibility
30 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
2
States / cities
Tempe, Arizona • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2015 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM 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 19, 2011 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

AchE Inhibitor and Insulin

NCT03063515
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Pyridostigmine
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Sep 27, 2026, 8:44 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 1, 2024 · Synced Sep 27, 2026, 8:44 AM EDT
Completed No phase listed Observational Results available

Antihypertensive Medication Exposure as Risk for Impaired Glucose Tolerance: A PEAR Sub-Study

NCT01099397
View directory record Official record
Conditions
Prediabetic State
Interventions
Oral glucose tolerance test
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2018 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM EDT
Completed No phase listed Observational

Metabolomics of Roux-en-Y Gastric Bypass (RYGB) With Gastrostomy

NCT00887302
View directory record Official record
Conditions
Type II Diabetes Mellitus, Obesity
Interventions
Gastric Band, Gastric Sleeve, Gastrostomy Tube
Procedure
Lead sponsor
East Carolina University
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 5, 2023 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Value of 25 mcg Cortrosyn Stimulation Test

NCT01428336
View directory record Official record
Conditions
Adrenal Insufficiency
Interventions
1 ug ACTH stimulation test, 250 ug ACTH stimulation test, 25 ug Cortrosyn stimulation test, Insulin tolerance test
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 24, 2017 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 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 20, 2023 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Role of Pulsatile Insulin Secretion (A Study Investigating the Effects of Partial Pacreatectomy on Glucose Metabolism)

NCT00841867
View directory record Official record
Conditions
Impaired Glucose Tolerance
Interventions
All subjects will undergo a 120 minute Oral Glucose Tolerance Test at study visit 2.
Procedure
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 16, 2016 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM 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 4, 2024 · Synced Sep 27, 2026, 8:44 AM 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 19, 2008 · Synced Sep 27, 2026, 8:44 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 27, 2026, 8:44 AM 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 5, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Effect of Fasting Free Fatty Acids and Fasting Glucose on 1st and 2nd Phase Insulin Secretion

NCT03998709
View directory record Official record
Conditions
Healthy
Interventions
Somatostatin, Dextrose, Insulin, Intralipid
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
25 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 8, 2022 · Synced Sep 27, 2026, 8:44 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

A Comparison of Neuromuscular Recruitment in Trained and Untrained Adults

NCT06820658
View directory record Official record
Conditions
Healthy, Insulin Resistance
Interventions
Neuromuscular Test, DEXA, Mixed Meal Tolerance Test, Strength Test
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
60 Years to 85 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 27, 2026, 8:44 AM EDT
Completed Phase 2 Interventional Results available

Effectiveness of Metformin Compared to Insulin in Pregnant Women With Mild Preexisting or Early Gestational Diabetes

NCT00835861
View directory record Official record
Conditions
Non Insulin Dependent Diabetes, Pregnancy
Interventions
Metformin, Insulin
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Sep 27, 2026, 8:44 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 17, 2025 · Synced Sep 27, 2026, 8:44 AM EDT