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Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Frequently sampled glucose tolerance testing Clear all
Completed No phase listed Observational

Glycemic Characterization and Pancreatic Imaging Correlates in Cystic Fibrosis

NCT03961516
View directory record Official record
Conditions
Cystic Fibrosis, Cystic Fibrosis-related Diabetes, Cystic Fibrosis Liver Disease, Pancreatic Steatosis, Hepatic Steatosis
Interventions
Frequently Sampled Oral Glucose Tolerance Test and CGM, MRI Pancreas and Liver
Device · Radiation
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
6 Years to 40 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Not applicable Interventional

Assessing the Impact of INSTI to PI Switch on Insulin Sensitivity and Fat Metabolism

NCT04675255
View directory record Official record
Conditions
HIV I Infection, Adiposity
Interventions
Frequently sampled glucose tolerance testing, abdominal subcutaneous adipose tissue biopsy, MRI scan to assess intrahepatic triglyceride content
Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 2, 2023 · Synced Sep 7, 2026, 5:46 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 19, 2008 · Synced Sep 7, 2026, 5:46 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Epigenetic Regulation of Human Adipose Tissue Distribution

NCT02728635
View directory record Official record
Conditions
Obesity
Interventions
Dual-energy X-ray absorptiometry (DEXA)/ Magnetic resonance imaging (MRI) and Magnetic resonance spectroscopy (MRS), Adipose tissue biopsies, FSIGTT/ RMR
Other · Procedure
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
18 Years to 45 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2026
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Mechanisms Underlying Metabolic Syndrome in Obesity

NCT00579813
View directory record Official record
Conditions
Metabolic Syndrome, Insulin Resistance, Prediabetes
Interventions
Pioglitazone
Drug
Lead sponsor
Philip Kern
Other
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
2
States / cities
Little Rock, Arkansas • Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Sep 7, 2026, 5:46 PM 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 7, 2026, 5:46 PM EDT
Completed Not applicable Interventional

EnVision CF Multicenter Study of Glucose Tolerance in Cystic Fibrosis

NCT03650712
View directory record Official record
Conditions
Cystic Fibrosis-related Diabetes
Interventions
Oral glucose tolerance test, Continuous glucose monitoring, Dexa scan
Diagnostic Test
Lead sponsor
Katie Larson Ode
Other
Eligibility
6 Years and older
Enrollment
317 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
4
States / cities
Aurora, Colorado • Iowa City, Iowa • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2024 · Synced Sep 7, 2026, 5:46 PM EDT
Completed No phase listed Observational

Use of a Test That Evaluates How the Body Handles Insulin and Glucose

NCT00027092
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
8
States / cities
Los Angeles, California • San Francisco, California • Honolulu, Hawaii + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2008 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Role of Glucagon In Glucose Control in Cystic Fibrosis Related Diabetes

NCT02398383
View directory record Official record
Conditions
Cystic Fibrosis, Cystic Fibrosis Related Diabetes
Interventions
Oral Glucose Tolerance Test, Mixed Meal Tolerance Test, Hypoglycemic Clamp
Other
Lead sponsor
Yale University
Other
Eligibility
12 Years to 45 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Sep 7, 2026, 5:46 PM EDT
Recruiting No phase listed Observational

Mathematical Modeling of Blood Sugar and Hormone Responses in Insulin-Dependent Type 2 Diabetes

NCT07650682
View directory record Official record
Conditions
Type 2 Diabetes, Insulin Dependent Diabetes
Interventions
Not listed
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Sleep and Meal Timing on Food Intake Regulation

NCT02347020
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Type II, Cardiovascular Disease
Interventions
Normal Sleep/ Normal Meal, Normal Sleep/ Late Meal, Late Sleep/ Normal Meal, Late Sleep/ Late Meal
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 49 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 11, 2016 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Phase 1 Interventional

Experimental Study to Validate the Modified Glucose Disposal Test

NCT01152372
View directory record Official record
Conditions
Diabetes
Interventions
Insulin, glucose and staple isotopes
Procedure
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Chula Vista, California
Source: ClinicalTrials.gov public record
Updated Feb 22, 2011 · Synced Sep 7, 2026, 5:46 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 1, 2010 · Synced Sep 7, 2026, 5:46 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Phenotyping Genetic Risk for Type 2 Diabetes

NCT04024631
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Genetics
Interventions
75g glucose beverage (Glucola, Trutol, or similar brand), DXA, whole body
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
10 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced Sep 7, 2026, 5:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of a Peroxisome Proliferator-activated Receptor (PPAR) Alpha Agonist on Cytochrome P450 (CYP) Monooxygenase Activity in Humans

NCT00872599
View directory record Official record
Conditions
Hypertension
Interventions
fenofibrate, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 70 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 27, 2013 · Synced Sep 7, 2026, 5:46 PM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Sleep Loss and Circadian Misalignment - Mechanisms of Insulin Resistance

NCT07494084
View directory record Official record
Conditions
Shift Work Schedule, Circadian Rhythm, Insulin Resistance, Circadian Misalignment
Interventions
Metyrapone And Hydrocortisone, Dextrose, insulin
Drug
Lead sponsor
Washington State University
Other
Eligibility
18 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 7, 2026, 5:46 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacogenomics of GLP1 Receptor Agonists

NCT05762744
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Exenatide Injection (before the first FSIGT), Exenatide injection before the second FSIGT)
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Sep 7, 2026, 5:46 PM EDT
Terminated Not applicable Interventional

Insulin Differences Between African-American and Caucasian Female Adolescents With Polycystic Ovary Syndrome (PCOS)

NCT02052479
View directory record Official record
Conditions
Polycystic Ovary Syndrome, PCOS
Interventions
Frequently Sampled Intravenous Glucose Tolerance Test (FSIVGTT)
Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
12 Years to 18 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 6, 2019 · Synced Sep 7, 2026, 5:46 PM EDT