{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Frequently+sampled+glucose+tolerance+testing",
    "query": {
      "intervention": "Frequently sampled glucose tolerance testing"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 18,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Frequently+sampled+glucose+tolerance+testing&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T06:11:01.111Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT03961516",
      "title": "Glycemic Characterization and Pancreatic Imaging Correlates in Cystic Fibrosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cystic Fibrosis",
        "Cystic Fibrosis-related Diabetes",
        "Cystic Fibrosis Liver Disease",
        "Pancreatic Steatosis",
        "Hepatic Steatosis"
      ],
      "interventions": [
        {
          "name": "Frequently Sampled Oral Glucose Tolerance Test and CGM",
          "type": "DEVICE"
        },
        {
          "name": "MRI Pancreas and Liver",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "RADIATION"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "6 Years to 40 Years"
      },
      "enrollment_count": 34,
      "start_date": "2019-05-01",
      "completion_date": "2021-08-30",
      "has_results": false,
      "last_update_posted_date": "2022-05-20",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03961516"
    },
    {
      "nct_id": "NCT04675255",
      "title": "Assessing the Impact of INSTI to PI Switch on Insulin Sensitivity and Fat Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV I Infection",
        "Adiposity"
      ],
      "interventions": [
        {
          "name": "Frequently sampled glucose tolerance testing",
          "type": "PROCEDURE"
        },
        {
          "name": "abdominal subcutaneous adipose tissue biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "MRI scan to assess intrahepatic triglyceride content",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2021-01-01",
      "completion_date": "2023-06-08",
      "has_results": false,
      "last_update_posted_date": "2023-08-03",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04675255"
    },
    {
      "nct_id": "NCT00749918",
      "title": "Effect of Vitamin D Deficiency and Vitamin D Supplementation on Glucose Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Cholecalciferol (vitamin D3)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 12,
      "start_date": "2007-01",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2008-10-20",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00749918"
    },
    {
      "nct_id": "NCT02728635",
      "title": "Epigenetic Regulation of Human Adipose Tissue Distribution",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Dual-energy X-ray absorptiometry (DEXA)/ Magnetic resonance imaging (MRI) and Magnetic resonance spectroscopy (MRS)",
          "type": "OTHER"
        },
        {
          "name": "Adipose tissue biopsies",
          "type": "PROCEDURE"
        },
        {
          "name": "FSIGTT/ RMR",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "AdventHealth Translational Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 27,
      "start_date": "2016-07",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02728635"
    },
    {
      "nct_id": "NCT00579813",
      "title": "Mechanisms Underlying Metabolic Syndrome in Obesity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "Insulin Resistance",
        "Prediabetes"
      ],
      "interventions": [
        {
          "name": "Pioglitazone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Philip Kern",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 70,
      "start_date": "2005-04",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2017-06-15",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 2,
      "location_summary": "Little Rock, Arkansas • Lexington, Kentucky",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00579813"
    },
    {
      "nct_id": "NCT01326533",
      "title": "Reducing Risk of Type 2 Diabetes: Hydroxychloroquine Use in Pre-Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pre-diabetes"
      ],
      "interventions": [
        {
          "name": "hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 32,
      "start_date": "2011-03",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2016-02-26",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01326533"
    },
    {
      "nct_id": "NCT03650712",
      "title": "EnVision CF Multicenter Study of Glucose Tolerance in Cystic Fibrosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cystic Fibrosis-related Diabetes"
      ],
      "interventions": [
        {
          "name": "Oral glucose tolerance test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Continuous glucose monitoring",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Dexa scan",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Katie Larson Ode",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 317,
      "start_date": "2019-07-01",
      "completion_date": "2023-08-31",
      "has_results": false,
      "last_update_posted_date": "2024-12-24",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • Iowa City, Iowa • Minneapolis, Minnesota + 1 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03650712"
    },
    {
      "nct_id": "NCT00027092",
      "title": "Use of a Test That Evaluates How the Body Handles Insulin and Glucose",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 50,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-08-07",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • San Francisco, California • Honolulu, Hawaii + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00027092"
    },
    {
      "nct_id": "NCT02398383",
      "title": "Role of Glucagon In Glucose Control in Cystic Fibrosis Related Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cystic Fibrosis",
        "Cystic Fibrosis Related Diabetes"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test",
          "type": "OTHER"
        },
        {
          "name": "Mixed Meal Tolerance Test",
          "type": "OTHER"
        },
        {
          "name": "Hypoglycemic Clamp",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "12 Years to 45 Years"
      },
      "enrollment_count": 7,
      "start_date": "2015-03",
      "completion_date": "2017-06-22",
      "has_results": false,
      "last_update_posted_date": "2020-06-26",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02398383"
    },
    {
      "nct_id": "NCT07650682",
      "title": "Mathematical Modeling of Blood Sugar and Hormone Responses in Insulin-Dependent Type 2 Diabetes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Type 2 Diabetes",
        "Insulin Dependent Diabetes"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Clinical Nutrition Research Center, Illinois Institute of Technology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 25,
      "start_date": "2026-05-20",
      "completion_date": "2027-03-20",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-09-08T06:11:01.111Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07650682"
    }
  ]
}