{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fragile+x+Syndrome&page=2",
    "query": {
      "condition": "Fragile x Syndrome",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fragile+x+Syndrome&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T08:14:30.928Z",
  "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": "NCT00895752",
      "title": "Riluzole in Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "Riluzole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2009-04",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2017-04-18",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00895752"
    },
    {
      "nct_id": "NCT02603926",
      "title": "Treatment of Fragile-X Associated Tremor/Ataxia Syndrome (FXTAS) With Allopregnanolone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X-associated Tremor/Ataxia Syndrome"
      ],
      "interventions": [
        {
          "name": "Allopregnanolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Randi J. Hagerman, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 6,
      "start_date": "2015-10",
      "completion_date": "2017-12",
      "has_results": true,
      "last_update_posted_date": "2018-12-06",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02603926"
    },
    {
      "nct_id": "NCT03816540",
      "title": "Diaphragmatic Breathing and Heart Rate Variability Training for Improving Hypertension in Fragile X Associated Tremor/Ataxia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension",
        "FXTAS"
      ],
      "interventions": [
        {
          "name": "HRV and respiratory coherence biofeedback",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 20,
      "start_date": "2018-05-01",
      "completion_date": "2019-03-13",
      "has_results": false,
      "last_update_posted_date": "2019-10-22",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03816540"
    },
    {
      "nct_id": "NCT05163808",
      "title": "A Randomized Study of BPN14770 in Male Adolescents (Aged 9 to < 18 Years) With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "zatolmilast",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tetra Discovery Partners",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "18 Years",
        "sex": "MALE",
        "summary": "9 Years to 18 Years · Male only"
      },
      "enrollment_count": 163,
      "start_date": "2022-03-29",
      "completion_date": "2025-09-02",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 17,
      "location_summary": "Irvine, California • Orange, California • Sacramento, California + 14 more",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05163808"
    },
    {
      "nct_id": "NCT01911455",
      "title": "Study of Acamprosate in Fragile x Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "acamprosate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "23 Years",
        "sex": "ALL",
        "summary": "5 Years to 23 Years"
      },
      "enrollment_count": 46,
      "start_date": "2013-08-27",
      "completion_date": "2018-11-08",
      "has_results": false,
      "last_update_posted_date": "2021-02-03",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01911455"
    },
    {
      "nct_id": "NCT01013480",
      "title": "An Open Label Extension Study of STX209 in Subjects With Fragile X Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "Arbaclofen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Seaside Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "6 Years to 40 Years"
      },
      "enrollment_count": 45,
      "start_date": "2009-11",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2012-12-20",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Sacramento, California • Chicago, Illinois + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Staten Island",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01013480"
    },
    {
      "nct_id": "NCT01300923",
      "title": "Acamprosate in Youth With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome",
        "Autism Spectrum Disorders"
      ],
      "interventions": [
        {
          "name": "Acamprosate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 14,
      "start_date": "2010-08",
      "completion_date": "2011-09",
      "has_results": true,
      "last_update_posted_date": "2019-07-30",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01300923"
    },
    {
      "nct_id": "NCT00362843",
      "title": "Protein Synthesis in the Brain of Patients With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fragile X Syndrome",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "[15-O]water",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "24 Years",
        "sex": "MALE",
        "summary": "18 Years to 24 Years · Male only"
      },
      "enrollment_count": 147,
      "start_date": "2006-08-22",
      "completion_date": "2020-05-01",
      "has_results": false,
      "last_update_posted_date": "2024-10-08",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00362843"
    },
    {
      "nct_id": "NCT03479476",
      "title": "A Trial of Metformin in Individuals With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Fragile X Syndrome",
        "Fragile X Mental Retardation Syndrome",
        "Mental Retardation, X Linked",
        "Genetic Diseases, X-Linked",
        "Trinucleotide Repeat Expansion",
        "Fra(X) Syndrome",
        "Intellectual Disability",
        "FXS",
        "Neurobehavioral Manifestations",
        "Sex Chromosome Disorders"
      ],
      "interventions": [
        {
          "name": "Placebo Medication",
          "type": "DRUG"
        },
        {
          "name": "Metformin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "6 Years to 25 Years"
      },
      "enrollment_count": 120,
      "start_date": "2018-04-30",
      "completion_date": "2024-05-22",
      "has_results": false,
      "last_update_posted_date": "2025-01-17",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03479476"
    },
    {
      "nct_id": "NCT00788073",
      "title": "Safety, Tolerability and Efficacy Study of STX209 in Subjects With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "STX209",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Seaside Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "6 Years to 40 Years"
      },
      "enrollment_count": 63,
      "start_date": "2008-11",
      "completion_date": "2010-05",
      "has_results": true,
      "last_update_posted_date": "2013-05-06",
      "last_synced_at": "2026-07-22T08:14:30.928Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Sacramento, California + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00788073"
    }
  ]
}