{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+glucose+tolerance+testing+%28OGTT%29&page=3",
    "query": {
      "intervention": "Oral glucose tolerance testing (OGTT)",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 146,
    "total_pages": 15,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+glucose+tolerance+testing+%28OGTT%29&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+glucose+tolerance+testing+%28OGTT%29&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T12:32:23.794Z",
  "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": "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": "2026-10-09T12:32:23.794Z",
      "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": "NCT03032640",
      "title": "Interactions of Human Gut Microbiota With Intestinal Sweet Taste Receptors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Oral Glucose Tolerance Test (OGTT)",
          "type": "OTHER"
        },
        {
          "name": "Assessment of dietary compliance",
          "type": "OTHER"
        },
        {
          "name": "Stool sampling",
          "type": "OTHER"
        },
        {
          "name": "Sodium Saccharin",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Lactisole",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 102,
      "start_date": "2017-01-26",
      "completion_date": "2022-10-18",
      "has_results": false,
      "last_update_posted_date": "2023-02-02",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03032640"
    },
    {
      "nct_id": "NCT02282423",
      "title": "PGC-1 & Muscle Mitochondrial Dysfunction in Diabetes",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Pre-study dietary and exercise instruction.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Screening examination and oral glucose tolerance test",
          "type": "PROCEDURE"
        },
        {
          "name": "Euglycemic clamp",
          "type": "PROCEDURE"
        },
        {
          "name": "VO2max.",
          "type": "PROCEDURE"
        },
        {
          "name": "Acute exercise bout",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Percutaneous needle muscle biopsies",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "30 Years to 59 Years"
      },
      "enrollment_count": 26,
      "start_date": "2014-05",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-05-12",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02282423"
    },
    {
      "nct_id": "NCT00571818",
      "title": "The Prospective Evaluation of Pancreatic Function in Pancreas Transplant Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Transplant",
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Oral glucose tolerance test",
          "type": "PROCEDURE"
        },
        {
          "name": "IV Glucose Tolerance Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "19 Years to 65 Years"
      },
      "enrollment_count": 31,
      "start_date": "2000-11-01",
      "completion_date": "2010-06-01",
      "has_results": false,
      "last_update_posted_date": "2023-10-10",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00571818"
    },
    {
      "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": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06016478"
    },
    {
      "nct_id": "NCT00287456",
      "title": "Use of the Insulin Pump in Cystic Fibrosis Patients With Impaired Glucose Tolerance or CFRD and in Type 1 Diabetes Patients.",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cystic Fibrosis Related Diabetes"
      ],
      "interventions": [
        {
          "name": "Insulin Pump",
          "type": "DEVICE"
        },
        {
          "name": "Insulin",
          "type": "DRUG"
        },
        {
          "name": "Oral Glucose Tolerance Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Whole body Protein Turnover",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "32 Years",
        "sex": "ALL",
        "summary": "12 Years to 32 Years"
      },
      "enrollment_count": 0,
      "start_date": "2006-02-02",
      "completion_date": "2006-02-02",
      "has_results": false,
      "last_update_posted_date": "2019-01-10",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00287456"
    },
    {
      "nct_id": "NCT01884792",
      "title": "Effects of Standing on Glycemia in Prediabetic Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prediabetes"
      ],
      "interventions": [
        {
          "name": "Sitting OGTT",
          "type": "OTHER"
        },
        {
          "name": "Standing OGTT",
          "type": "OTHER"
        },
        {
          "name": "Sitting CGM",
          "type": "OTHER"
        },
        {
          "name": "Standing CGM",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 20,
      "start_date": "2013-03",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2014-09-15",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01884792"
    },
    {
      "nct_id": "NCT05404711",
      "title": "Continuous Glucose Monitors (CGM) for Type 2 Diabetes (T2D) Risk Evaluation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity",
        "PreDiabetes",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "CGM",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mary Ellen Vajravelu, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "8 Years to 18 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-10-11",
      "completion_date": "2023-12-14",
      "has_results": true,
      "last_update_posted_date": "2024-09-25",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05404711"
    },
    {
      "nct_id": "NCT02871882",
      "title": "Ox Bile- Conjugated Bile Acids Sodium in Type II Diabetes Mellitus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Type 2 Diabetes Mellitus",
        "Obese",
        "Overweight"
      ],
      "interventions": [
        {
          "name": "Gastric Emptying test",
          "type": "RADIATION"
        },
        {
          "name": "Mixed Oral Glucose Tolerance test",
          "type": "OTHER"
        },
        {
          "name": "Conjugated bile acids sodium",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 24,
      "start_date": "2016-09-15",
      "completion_date": "2017-10-30",
      "has_results": true,
      "last_update_posted_date": "2023-05-31",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02871882"
    },
    {
      "nct_id": "NCT02583750",
      "title": "Snooze Control: Sleep Duration & Glucose Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glucose Metabolism Disorders"
      ],
      "interventions": [
        {
          "name": "OGTT after deprived sleep first",
          "type": "BEHAVIORAL"
        },
        {
          "name": "OGTT after sufficient sleep first",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Xuewen Wang",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 16,
      "start_date": "2014-01",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-10-22",
      "last_synced_at": "2026-10-09T12:32:23.794Z",
      "location_count": 1,
      "location_summary": "Columbia, South Carolina",
      "locations": [
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02583750"
    }
  ]
}