{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fragile+x+Syndrome",
    "query": {
      "condition": "Fragile x Syndrome"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 88,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Fragile+x+Syndrome&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T07:12:11.930Z",
  "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": "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": "2026-07-22T07:12:11.930Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05418049"
    },
    {
      "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": "2026-07-22T07:12:11.930Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06088589"
    },
    {
      "nct_id": "NCT02769949",
      "title": "Pediatric Patients With Metabolic or Other Genetic Disorders",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Genetic Disorder",
        "Asperger Disorder",
        "Autism Spectrum Disorder",
        "Fragile X Syndrome",
        "Developmental Delay"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "1 Year to 99 Years"
      },
      "enrollment_count": 96,
      "start_date": "2016-05-03",
      "completion_date": "2025-07-08",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02769949"
    },
    {
      "nct_id": "NCT01433354",
      "title": "Long-term, Safety and Tolerability Study of AFQ056 in Adolescent Patients With Fragile X Syndrome (Open-label)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "AFQ056",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "12 Years to 18 Years"
      },
      "enrollment_count": 119,
      "start_date": "2011-11",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2016-03-24",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 7,
      "location_summary": "Sacramento, California • Decatur, Georgia • Chicago, Illinois + 4 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01433354"
    },
    {
      "nct_id": "NCT01725152",
      "title": "Ganaxolone Treatment in Children With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile x Syndrome"
      ],
      "interventions": [
        {
          "name": "Ganaxolone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Marinus Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 59,
      "start_date": "2012-11",
      "completion_date": "2016-11-01",
      "has_results": true,
      "last_update_posted_date": "2023-04-10",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01725152"
    },
    {
      "nct_id": "NCT01894958",
      "title": "A Safety Study of NNZ-2566 in Patients With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "NNZ-2566",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neuren Pharmaceuticals Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "12 Years to 45 Years · Male only"
      },
      "enrollment_count": 72,
      "start_date": "2014-01",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2018-02-05",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 17,
      "location_summary": "Sacramento, California • Denver, Colorado • Washington D.C., District of Columbia + 14 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01894958"
    },
    {
      "nct_id": "NCT03510156",
      "title": "Treatment of Disruptive Behaviors in Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fragile X Syndrome",
        "Disruptive Behavior"
      ],
      "interventions": [
        {
          "name": "Behavior analytic treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "10 Years",
        "sex": "MALE",
        "summary": "3 Years to 10 Years · Male only"
      },
      "enrollment_count": 60,
      "start_date": "2016-07",
      "completion_date": "2022-03",
      "has_results": false,
      "last_update_posted_date": "2022-05-04",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03510156"
    },
    {
      "nct_id": "NCT05301361",
      "title": "Sensitivity of the NIH Toolbox to Stimulant Treatment in Intellectual Disabilities",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Intellectual Disability",
        "Fragile X Syndrome",
        "Down Syndrome",
        "Attention Deficit Hyperactivity Disorder"
      ],
      "interventions": [
        {
          "name": "Methylphenidate Oral Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "6 Years to 24 Years"
      },
      "enrollment_count": 68,
      "start_date": "2023-02-01",
      "completion_date": "2026-09-29",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 3,
      "location_summary": "Sacramento, California • Chicago, Illinois • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05301361"
    },
    {
      "nct_id": "NCT01325220",
      "title": "Efficacy and Safety Study of STX209 (Arbaclofen) for the Treatment of Social Withdrawal in Children With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "arbaclofen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Seaside Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "5 Years to 11 Years"
      },
      "enrollment_count": 172,
      "start_date": "2011-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-07-31",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 28,
      "location_summary": "Phoenix, Arizona • Long Beach, California • Sacramento, California + 24 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01325220"
    },
    {
      "nct_id": "NCT01253629",
      "title": "Safety and Efficacy of AFQ056 in Adult Patients With Fragile X Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fragile X Syndrome"
      ],
      "interventions": [
        {
          "name": "AFQ056",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 175,
      "start_date": "2010-11",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2020-12-23",
      "last_synced_at": "2026-07-22T07:12:11.930Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • Sacramento, California • Decatur, Georgia + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01253629"
    }
  ]
}