{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=X-Linked",
    "query": {
      "condition": "X-Linked"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 986,
    "total_pages": 99,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=X-Linked&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-21T21:31:48.710Z",
  "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": "NCT01998633",
      "title": "Reduced Intensity Conditioning for Hemophagocytic Syndromes or Selected Primary Immune Deficiencies (BMT CTN 1204)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hemophagocytic Lymphohistiocytosis",
        "Chronic Active Epstein-Barr Virus Infection",
        "Chronic Granulomatous Disease",
        "HIGM-1",
        "Leukocyte Adhesion Deficiency",
        "IPEX"
      ],
      "interventions": [
        {
          "name": "Hematopoietic Stem Cell Transplant",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "4 Months to 45 Years"
      },
      "enrollment_count": 47,
      "start_date": "2013-12",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2022-12-08",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 19,
      "location_summary": "Birmingham, Alabama • Washington D.C., District of Columbia • Atlanta, Georgia + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01998633"
    },
    {
      "nct_id": "NCT03003533",
      "title": "A Gene Transfer Study for Hemophilia A",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "SPK-8011",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Spark Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 25,
      "start_date": "2017-01-26",
      "completion_date": "2023-12-05",
      "has_results": true,
      "last_update_posted_date": "2024-12-30",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 11,
      "location_summary": "Sacramento, California • Gainesville, Florida • Boston, Massachusetts + 7 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Madison",
          "state": "Mississippi"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03003533"
    },
    {
      "nct_id": "NCT01461304",
      "title": "Compassionate Use of Triheptanoin (C7) for Inherited Disorders of Energy Metabolism",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Very Long-chain acylCoA Dehydrogenase (VLCAD) Deficiency",
        "Carnitine Palmitoyltransferase Deficiencies (CPT1, CPT2)",
        "Mitochondrial Trifunctional Protein Deficiency",
        "Long-chain Hydroxyacyl-CoA Dehydrogenase Deficiency",
        "Glycogen Storage Disorders",
        "Pyruvate Carboxylase Deficiency Disease",
        "ACYL-CoA DEHYDROGENASE FAMILY, MEMBER 9, DEFICIENCY of",
        "Barth Syndrome"
      ],
      "interventions": [
        {
          "name": "triheptanoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jerry Vockley, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Month and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2021-12-10",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01461304"
    },
    {
      "nct_id": "NCT05418049",
      "title": "Evaluating the Neurophysiologic and Clinical Effects of Single Dose Drug Challenge",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "Baclofen",
          "type": "DRUG"
        },
        {
          "name": "Memantine",
          "type": "DRUG"
        },
        {
          "name": "Roflumilast",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 45,
      "start_date": "2022-09-08",
      "completion_date": "2026-03-05",
      "has_results": false,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05418049"
    },
    {
      "nct_id": "NCT04040049",
      "title": "A Fabry Disease Gene Therapy Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Fabry Disease",
        "Lysosomal Storage Diseases"
      ],
      "interventions": [
        {
          "name": "FLT190",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Spur Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 3,
      "start_date": "2019-07-08",
      "completion_date": "2023-05-02",
      "has_results": false,
      "last_update_posted_date": "2023-06-05",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • New York, New York • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04040049"
    },
    {
      "nct_id": "NCT01772043",
      "title": "Duchenne Muscular Dystrophy Tissue Bank for Exon Skipping",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Duchenne Muscular Dystrophy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Cooperative International Neuromuscular Research Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "4 Years and older · Male only"
      },
      "enrollment_count": 53,
      "start_date": "2012-09",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2015-07-28",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 8,
      "location_summary": "Sacramento, California • Stanford, California • Washington D.C., District of Columbia + 5 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01772043"
    },
    {
      "nct_id": "NCT02439216",
      "title": "Phase 1/2 Study in Boys With Duchenne Muscular Dystrophy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Muscular Dystrophy, Duchenne"
      ],
      "interventions": [
        {
          "name": "Edasalonexent",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Catabasis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "7 Years",
        "sex": "MALE",
        "summary": "4 Years to 7 Years · Male only"
      },
      "enrollment_count": 31,
      "start_date": "2016-04",
      "completion_date": "2019-08",
      "has_results": true,
      "last_update_posted_date": "2022-09-23",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Gainesville, Florida • Orlando, Florida + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02439216"
    },
    {
      "nct_id": "NCT02413450",
      "title": "Derivation of Human Induced Pluripotent Stem (iPS) Cells to Heritable Cardiac Arrhythmias",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Inherited Cardiac Arrythmias",
        "Long QT Syndrome (LQTS)",
        "Brugada Syndrome (BrS)",
        "Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)",
        "Early Repolarization Syndrome (ERS)",
        "Arrhythmogenic Cardiomyopathy (AC, ARVD/C)",
        "Hypertrophic Cardiomyopathy (HCM)",
        "Dilated Cardiomyopathy (DCM)",
        "Muscular Dystrophies (Duchenne, Becker, Myotonic Dystrophy)",
        "Normal Control Subjects"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 100,
      "start_date": "2013-08",
      "completion_date": "2031-08",
      "has_results": false,
      "last_update_posted_date": "2026-01-16",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02413450"
    },
    {
      "nct_id": "NCT04281485",
      "title": "Study to Evaluate the Safety and Efficacy of PF-06939926 for the Treatment of Duchenne Muscular Dystrophy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Duchenne Muscular Dystrophy"
      ],
      "interventions": [
        {
          "name": "PF-06939926",
          "type": "GENETIC"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "7 Years",
        "sex": "MALE",
        "summary": "4 Years to 7 Years · Male only"
      },
      "enrollment_count": 114,
      "start_date": "2020-11-05",
      "completion_date": "2039-04-15",
      "has_results": true,
      "last_update_posted_date": "2026-03-02",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 17,
      "location_summary": "Little Rock, Arkansas • Los Angeles, California • Gainesville, Florida + 8 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04281485"
    },
    {
      "nct_id": "NCT06088589",
      "title": "Speech-in-noise Perception in Autism and Fragile X",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autism Spectrum Disorder",
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "Mismatch negativity",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "15 Years to 35 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-11-10",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-07-21T21:31:48.710Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06088589"
    }
  ]
}