{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Oral+Glucose+Tolerance+Test",
    "query": {
      "condition": "Oral Glucose Tolerance Test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 36,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Oral+Glucose+Tolerance+Test&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T16:04:58.392Z",
  "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": "NCT02254317",
      "title": "Dose-dependent Effect of Grape Seed Extract on Glucose Control in People With Impaired Glucose Tolerance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Impaired Glucose Tolerance"
      ],
      "interventions": [
        {
          "name": "0 mg placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "300 mg GSE",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "600 mg GSE",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "900 mg GSE",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Clinical Nutrition Research Center, Illinois Institute of Technology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "40 Years to 65 Years"
      },
      "enrollment_count": 16,
      "start_date": "2014-09-15",
      "completion_date": "2015-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-01-28",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02254317"
    },
    {
      "nct_id": "NCT03644524",
      "title": "Heat Therapy and Cardiometabolic Health in Obese Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Polycystic Ovary Syndrome",
        "Prehypertension",
        "PreDiabetes",
        "Cardiovascular Risk Factor",
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "Heat therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oregon",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2015-09-08",
      "completion_date": "2018-07-01",
      "has_results": false,
      "last_update_posted_date": "2018-08-23",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Eugene, Oregon",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03644524"
    },
    {
      "nct_id": "NCT05909046",
      "title": "A Randomized Controlled Trial of Diabetes Screening Immediately Postpartum (DIP) and Follow Up PP CARE",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pre-Gestational Diabetes",
        "Type2diabetes",
        "Pregnancy in Diabetic",
        "Pregnancy, High Risk",
        "Gestational Diabetes",
        "Gestational Diabetes Mellitus in the Puerperium"
      ],
      "interventions": [
        {
          "name": "Immediate inpatient postpartum OGTT",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Standard of care 4-12 week postpartum OGTT",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 104,
      "start_date": "2023-07-24",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-24",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05909046"
    },
    {
      "nct_id": "NCT02082301",
      "title": "Oral Glucose Tolerance Testing After Gestational Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gestational Diabetes",
        "Pregnancy",
        "Obesity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 118,
      "start_date": "2012-10",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-02-25",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 2,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02082301"
    },
    {
      "nct_id": "NCT02894112",
      "title": "Effects of Fluid Milk in Attenuating Hyperglycemia and Hypertriglyceridemia After Meal",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oral Glucose Tolerance Test",
        "High Fat Tolerance Test"
      ],
      "interventions": [
        {
          "name": "non-fat milk",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "carbohydrate control beverage",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "caloric control beverage",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "20 Years to 40 Years"
      },
      "enrollment_count": 30,
      "start_date": "2013-04",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-09-09",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02894112"
    },
    {
      "nct_id": "NCT01633177",
      "title": "Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Omega-3 fatty acid (fish oil)",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D3 placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Fish oil placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 22220,
      "start_date": "2011-11",
      "completion_date": "2024-05-30",
      "has_results": true,
      "last_update_posted_date": "2026-04-03",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01633177"
    },
    {
      "nct_id": "NCT05422430",
      "title": "Rebreathing-induced Hypoxia and Glucose Levels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypoxemia"
      ],
      "interventions": [
        {
          "name": "Rebreathing-induced hypoxia",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spontaneous breathing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-10-21",
      "completion_date": "2025-10-13",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05422430"
    },
    {
      "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": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01371045"
    },
    {
      "nct_id": "NCT05568134",
      "title": "Alternate Measures of Glucose During OGTT Testing for CFRD",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cystic Fibrosis",
        "Cystic Fibrosis-related Diabetes"
      ],
      "interventions": [
        {
          "name": "Oral glucose tolerance test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2023-07-17",
      "completion_date": "2024-12-13",
      "has_results": false,
      "last_update_posted_date": "2025-02-24",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05568134"
    },
    {
      "nct_id": "NCT05441982",
      "title": "Saccharin and Acesulfame Potassium Consumption and Glucose Homeostasis in Older Adults With Prediabetes",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Continuous Glucose Monitoring",
        "Oral Glucose Tolerance",
        "Insulin Sensitivity",
        "Inflammatory Markers"
      ],
      "interventions": [
        {
          "name": "Non-Nutritive Sweetener Intake and impact on glucose homeostasis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Virginia Polytechnic Institute and State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2023-09-21",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-07-23T16:04:58.392Z",
      "location_count": 1,
      "location_summary": "Blacksburg, Virginia",
      "locations": [
        {
          "city": "Blacksburg",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05441982"
    }
  ]
}