{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=oral+glucose+tolerance+test",
    "query": {
      "intervention": "oral glucose tolerance test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 172,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=oral+glucose+tolerance+test&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T18:51:16.991Z",
  "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": "NCT02260895",
      "title": "Almond Effects on Glucose Intolerance Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes"
      ],
      "interventions": [
        {
          "name": "Almond pre-test snack",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Memorial Hermann Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 24,
      "start_date": "2014-12",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2024-03-20",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Sugar Land, Texas",
      "locations": [
        {
          "city": "Sugar Land",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02260895"
    },
    {
      "nct_id": "NCT00004984",
      "title": "The Diabetes Prevention Trial of Type 1 Diabetes (DPT-1)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 1"
      ],
      "interventions": [
        {
          "name": "Parenteral Insulin",
          "type": "DRUG"
        },
        {
          "name": "Close Observation",
          "type": "OTHER"
        },
        {
          "name": "Oral Insulin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "3 Years to 45 Years"
      },
      "enrollment_count": 711,
      "start_date": "1994-02",
      "completion_date": "2003-06",
      "has_results": false,
      "last_update_posted_date": "2020-04-24",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • San Francisco, California • Stanford, California + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004984"
    },
    {
      "nct_id": "NCT02122666",
      "title": "Composition & Function of Sarcoplasmic Reticulum in Persons With the Metabolic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "muscle biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 27,
      "start_date": "2014-03",
      "completion_date": "2024-02-15",
      "has_results": true,
      "last_update_posted_date": "2024-10-26",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02122666"
    },
    {
      "nct_id": "NCT06507722",
      "title": "Night Owl Metabolism",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes",
        "Overweight",
        "Impaired Glucose Tolerance"
      ],
      "interventions": [
        {
          "name": "Timing of OGTT",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Timing of Standardized Meal",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "23 Years",
        "sex": "ALL",
        "summary": "18 Years to 23 Years"
      },
      "enrollment_count": 70,
      "start_date": "2025-02-25",
      "completion_date": "2030-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06507722"
    },
    {
      "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": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04222101"
    },
    {
      "nct_id": "NCT02550145",
      "title": "Role of GLP-1 in Hyperinsulinemic Hypoglycemia Post-bariatric Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypoglycemia"
      ],
      "interventions": [
        {
          "name": "Exendin (9-39)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Tracey McLaughlin",
      "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": 10,
      "start_date": "2014-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2024-12-04",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02550145"
    },
    {
      "nct_id": "NCT00787839",
      "title": "Opportunistic Screening for Prediabetes and Early Diabetes in Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Type 2 Diabetes Mellitus",
        "Prediabetic State"
      ],
      "interventions": [
        {
          "name": "Glucose challenge test",
          "type": "OTHER"
        },
        {
          "name": "Glucose tolerance test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1939,
      "start_date": "2009-06",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2015-04-27",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00787839"
    },
    {
      "nct_id": "NCT04055428",
      "title": "NAUTICAL: Effect of Natriuretic Peptide Augmentation on Cardiometabolic Health in Black Individuals",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetes Mellitus",
        "Cardiovascular Diseases",
        "Insulin Sensitivity/Resistance",
        "Metabolic Disease",
        "Natriuretic Peptides",
        "Metabolism",
        "Energy Expenditure"
      ],
      "interventions": [
        {
          "name": "Sacubitril, Valsartan 97-103 mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Valsartan 160 mg",
          "type": "DRUG"
        },
        {
          "name": "Intravenous Glucose Tolerance Test",
          "type": "OTHER"
        },
        {
          "name": "Standardized Meals",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Exercise capacity VO2 maximum determination",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-08-15",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-28",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04055428"
    },
    {
      "nct_id": "NCT03818516",
      "title": "Impact of Inflammation on Reward Circuits, Motivational Deficits and Negative Symptoms in Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test (OGTT)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 12,
      "start_date": "2020-08-31",
      "completion_date": "2022-03-01",
      "has_results": true,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-09-22T18:51:16.991Z",
      "location_count": 6,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03818516"
    },
    {
      "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": "2026-09-22T18:51:16.991Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02398383"
    }
  ]
}