{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Glucose+Transporter+1+Deficiency+Syndrome",
    "query": {
      "condition": "Glucose Transporter 1 Deficiency Syndrome"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Glucose+Transporter+1+Deficiency+Syndrome&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T05:43:50.339Z",
  "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": "NCT04137692",
      "title": "Red Blood Cell Exchange Transfusion as a Novel Treatment for GLUT1 Deficiency Syndrome",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "GLUT1DS1"
      ],
      "interventions": [
        {
          "name": "Red Blood Cell Transfusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "16 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2027-09",
      "completion_date": "2031-08",
      "has_results": false,
      "last_update_posted_date": "2025-12-11",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04137692"
    },
    {
      "nct_id": "NCT02018302",
      "title": "Post Study Continuation of C7 for G1D",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Glut1 Deficiency Syndrome",
        "Glucose Transporter Type 1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "Triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Juan Pascual",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "28 Years",
        "sex": "ALL",
        "summary": "1 Month to 28 Years"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-04-18",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02018302"
    },
    {
      "nct_id": "NCT02968953",
      "title": "Treatment With UX007 for a Single Patient With GLUT1 Deficiency Syndrome",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Glucose Transporter 1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "Triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jerry Vockley, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "3 Years and older · Female only"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-02-08",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02968953"
    },
    {
      "nct_id": "NCT03181399",
      "title": "Diet Treatment Glucose Transporter Type 1 Deficiency (G1D)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "GLUT1DS1",
        "Epilepsy",
        "Glut1 Deficiency Syndrome 1, Autosomal Recessive",
        "Glucose Metabolism Disorders",
        "Glucose Transport Defect",
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "Glucose Transporter Protein Type 1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "Triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "24 Months",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "24 Months to 35 Years"
      },
      "enrollment_count": 45,
      "start_date": "2018-04-18",
      "completion_date": "2023-09-10",
      "has_results": true,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03181399"
    },
    {
      "nct_id": "NCT05085704",
      "title": "Brain Metabolism Observed at 3 Tesla or 7 Tesla in Health and Metabolic Disease",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glut1 Deficiency Syndrome 1",
        "Glucose Metabolism Disorders",
        "Epilepsy",
        "Glut1 Deficiency Syndrome 1, Autosomal Recessive",
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "Glucose Transporter Protein Type 1 Deficiency Syndrome",
        "Glucose Transport Defect"
      ],
      "interventions": [
        {
          "name": "Magnetic resonance imaging",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "16 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2022-05-03",
      "completion_date": "2029-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 2,
      "location_summary": "New York, New York • Dallas, Texas",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05085704"
    },
    {
      "nct_id": "NCT03041363",
      "title": "Treatment Development of Triheptanoin (G1D)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Epilepsy",
        "GLUT1DS1",
        "Glut1 Deficiency Syndrome 1, Autosomal Recessive",
        "Glucose Metabolism Disorders",
        "Glucose Transport Defect",
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "Glucose Transporter Protein Type 1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "Triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Juan Pascual",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "2 Years to 35 Years"
      },
      "enrollment_count": 12,
      "start_date": "2017-03-29",
      "completion_date": "2017-12-22",
      "has_results": false,
      "last_update_posted_date": "2022-12-22",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03041363"
    },
    {
      "nct_id": "NCT02960217",
      "title": "Crossover Study to Assess the Efficacy and Safety of UX007 in the Treatment of Movement Disorders Associated With Glucose Transporter Type 1 Deficiency Syndrome (Glut1 DS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Glucose Transporter Type 1 Deficiency Syndrome (Glut1 DS)"
      ],
      "interventions": [
        {
          "name": "UX007",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ultragenyx Pharmaceutical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2017-04-19",
      "completion_date": "2019-10-09",
      "has_results": true,
      "last_update_posted_date": "2020-06-16",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • Miami, Florida • Norcross, Georgia + 1 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Norcross",
          "state": "Georgia"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02960217"
    },
    {
      "nct_id": "NCT02018315",
      "title": "Treatment Development for Glucose Transporter Type I Deficiency Syndrome (G1D)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "GLUT1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "Triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Juan Pascual",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "1 Month to 20 Years"
      },
      "enrollment_count": 14,
      "start_date": "2012-01",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2019-10-31",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02018315"
    },
    {
      "nct_id": "NCT02013583",
      "title": "The Glucose Transporter Type I Deficiency (G1D) Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "GLUT1 Deficiency Syndrome",
        "Glucose Transporter Type 1 Deficiency Syndrome",
        "Glucose Transporter Type1 (GLUT-1) Deficiency",
        "GLUT-1 Deficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 471,
      "start_date": "2013-12",
      "completion_date": "2024-08-01",
      "has_results": false,
      "last_update_posted_date": "2025-03-07",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02013583"
    },
    {
      "nct_id": "NCT01993186",
      "title": "Phase 2 Study of Triheptanoin (UX007) for the Treatment of Glucose Transporter Type 1 Deficiency Syndrome (Glut1 DS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glucose Transporter Type 1 Deficiency Syndrome (Glut1 DS)"
      ],
      "interventions": [
        {
          "name": "UX007",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ultragenyx Pharmaceutical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "1 Year to 100 Years"
      },
      "enrollment_count": 36,
      "start_date": "2014-02-28",
      "completion_date": "2017-09-20",
      "has_results": true,
      "last_update_posted_date": "2020-06-19",
      "last_synced_at": "2026-06-10T05:43:50.339Z",
      "location_count": 8,
      "location_summary": "Aurora, Colorado • Miami, Florida • Orlando, Florida + 4 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01993186"
    }
  ]
}