{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+Glucose+Tolerance+Testing",
    "query": {
      "intervention": "Oral Glucose Tolerance Testing"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 167,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+Glucose+Tolerance+Testing&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T06:00:56.497Z",
  "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": "NCT04222101",
      "title": "Association of Insulin Resistance and FGF21 on Cardiac Function in Pediatric Dilated Cardiomyopathy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiomyopathy, Dilated",
        "Cardiomyopathy, Hypertrophic",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Oral glucose tolerance test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Le Bonheur Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "13 Years to 18 Years"
      },
      "enrollment_count": 9,
      "start_date": "2019-10-07",
      "completion_date": "2021-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-12-20",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04222101"
    },
    {
      "nct_id": "NCT00876928",
      "title": "Vitamin D in Minorities With Prediabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pre-diabetes"
      ],
      "interventions": [
        {
          "name": "vitamin D",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Charles Drew University of Medicine and Science",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 117,
      "start_date": "2009-03",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2013-06-14",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00876928"
    },
    {
      "nct_id": "NCT06016478",
      "title": "The Effect of 4 Weeks of L-Citrulline Supplementation on Macro- and Microvascular Function in Type 2 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "L-citrulline",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Texas Tech University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 36,
      "start_date": "2023-05-01",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-15",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06016478"
    },
    {
      "nct_id": "NCT00246623",
      "title": "US Inhaled Insulin Dose Titration Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 2"
      ],
      "interventions": [
        {
          "name": "Exubera (inhaled insulin)",
          "type": "DRUG"
        },
        {
          "name": "8-point glucose diary (to assess pre- and post prandial glucoses)",
          "type": "PROCEDURE"
        },
        {
          "name": "Meal Tolerance Test",
          "type": "PROCEDURE"
        },
        {
          "name": "24-hour continuous glucose monitoring (at select sites)",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Hypoglycemic Event Monitoring",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Assessments",
          "type": "PROCEDURE"
        },
        {
          "name": "Nutritional Counseling and Diabetes Education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 120,
      "start_date": "2005-11",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2008-02-08",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 16,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • New Britain, Connecticut + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Britain",
          "state": "Connecticut"
        },
        {
          "city": "Norwalk",
          "state": "Connecticut"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00246623"
    },
    {
      "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": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02398383"
    },
    {
      "nct_id": "NCT07020741",
      "title": "Stable Isotopes- Adults With Obesity",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obese Patients (BMI ≥ 30 kg/m²)",
        "Glucose Metabolism",
        "Protein Metabolism"
      ],
      "interventions": [
        {
          "name": "Indispensable Amino Acid Oxidation",
          "type": "PROCEDURE"
        },
        {
          "name": "Stable Isotope Oral Glucose Tolerance Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "19 Years to 59 Years"
      },
      "enrollment_count": 8,
      "start_date": "2025-09-12",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07020741"
    },
    {
      "nct_id": "NCT01371045",
      "title": "Oral Glucose Tolerance Testing (OGTT) on Patients Taking Somatostatin Analogs",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acromegaly"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test (OGTT)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2011-06",
      "completion_date": "2019-06",
      "has_results": false,
      "last_update_posted_date": "2025-02-13",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01371045"
    },
    {
      "nct_id": "NCT01199029",
      "title": "Single Dose Study Of PF-04308515 And Prednisone On Carbohydrate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "PF-04308515",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 18,
      "start_date": "2010-08",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2010-12-16",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01199029"
    },
    {
      "nct_id": "NCT05087823",
      "title": "The Mixed Meal Challenge Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Hyperlipidemias"
      ],
      "interventions": [
        {
          "name": "Lipid Challenge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucose Challenge",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Mixed Meal Challenge",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 11,
      "start_date": "2021-11-02",
      "completion_date": "2022-05-19",
      "has_results": false,
      "last_update_posted_date": "2023-05-01",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05087823"
    },
    {
      "nct_id": "NCT02364570",
      "title": "Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes",
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Glucose (100g)",
          "type": "OTHER"
        },
        {
          "name": "Glucose (75g)",
          "type": "OTHER"
        },
        {
          "name": "Whole Eggs",
          "type": "OTHER"
        },
        {
          "name": "Egg Whites",
          "type": "OTHER"
        },
        {
          "name": "Egg Yolks",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "18 Years to 50 Years · Male only"
      },
      "enrollment_count": 20,
      "start_date": "2015-01",
      "completion_date": "2017-06",
      "has_results": true,
      "last_update_posted_date": "2019-05-03",
      "last_synced_at": "2026-09-15T06:00:56.497Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02364570"
    }
  ]
}