{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Trisomy+21&page=3",
    "query": {
      "condition": "Trisomy 21",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 212,
    "total_pages": 22,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Trisomy+21&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Trisomy+21&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T03:08:17.298Z",
  "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": "NCT05146739",
      "title": "Highest Dose of Uproleselan in Combination With Fludarabine and Cytarabine for Patients With Acute Myeloid Leukemia, Myelodysplastic Syndrome, or Mixed Phenotype Acute Leukemia Relapsed or Refractory That Expresses E-selectin Ligand on the Cell Membrane",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Myeloid Leukemia Post Cytotoxic Therapy",
        "Myelodysplastic Syndrome Post Cytotoxic Therapy",
        "Myeloid Leukemia Associated With Down Syndrome",
        "Recurrent Acute Myeloid Leukemia",
        "Recurrent Mixed Phenotype Acute Leukemia",
        "Recurrent Myelodysplastic Syndrome",
        "Refractory Acute Myeloid Leukemia",
        "Refractory Mixed Phenotype Acute Leukemia",
        "Refractory Myelodysplastic Syndrome"
      ],
      "interventions": [
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin",
          "type": "DRUG"
        },
        {
          "name": "Triple Intrathecal Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Uproleselan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 8,
      "start_date": "2023-10-10",
      "completion_date": "2027-05-09",
      "has_results": true,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 19,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Orange, California + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05146739"
    },
    {
      "nct_id": "NCT06042257",
      "title": "Guanfacine for Hyperactivity in Children With Down Syndrome (HYPEbeGONE_DS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hyperactivity in Children With Down Syndrome",
        "Impulsivity in Children With Down Syndrome"
      ],
      "interventions": [
        {
          "name": "Guanfacine Hydrochloride Immediate Release",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rachel G. Greenberg, MD, MB, MHS",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 3,
      "start_date": "2024-12-09",
      "completion_date": "2025-08-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 14,
      "location_summary": "Phoenix, Arizona • Atlanta, Georgia • Chicago, Illinois + 11 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06042257"
    },
    {
      "nct_id": "NCT04227197",
      "title": "An Online Health Tool About Down Syndrome: Down Syndrome Clinic to You",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Down Syndrome"
      ],
      "interventions": [
        {
          "name": "Down Syndrome Clinic to You (DSC2U)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 281,
      "start_date": "2017-10-03",
      "completion_date": "2019-05-15",
      "has_results": true,
      "last_update_posted_date": "2022-06-14",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04227197"
    },
    {
      "nct_id": "NCT00928304",
      "title": "Phase II Study of Florbetaben (BAY94-9172) PET Imaging for Detection/Exclusion of Cerebral β-amyloid.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Down Syndrome",
        "Amyloid Beta-protein"
      ],
      "interventions": [
        {
          "name": "Florbetaben (BAY94-9172)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lantheus Biosciences Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 109,
      "start_date": "2009-06",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2014-03-05",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 2,
      "location_summary": "Sun City, Arizona • New Haven, Connecticut",
      "locations": [
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00928304"
    },
    {
      "nct_id": "NCT01808508",
      "title": "Obstructive Sleep Apnea and Neurocognitive and Cardiovascular Function in Children With Down Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Down Syndrome",
        "Obstructive Sleep Apnea Syndrome"
      ],
      "interventions": [
        {
          "name": "Continuous positive airway pressure",
          "type": "DEVICE"
        },
        {
          "name": "Sham or placebo continuous positive airway pressure",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "8 Years to 20 Years"
      },
      "enrollment_count": 27,
      "start_date": "2010-09",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2016-02-08",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01808508"
    },
    {
      "nct_id": "NCT00369317",
      "title": "Combination Chemotherapy in Treating Young Patients With Down Syndrome and Acute Myeloid Leukemia or Myelodysplastic Syndromes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Childhood Acute Basophilic Leukemia",
        "Childhood Acute Eosinophilic Leukemia",
        "Childhood Acute Erythroleukemia (M6)",
        "Childhood Acute Megakaryocytic Leukemia (M7)",
        "Childhood Acute Minimally Differentiated Myeloid Leukemia (M0)",
        "Childhood Acute Monoblastic Leukemia (M5a)",
        "Childhood Acute Monocytic Leukemia (M5b)",
        "Childhood Acute Myeloblastic Leukemia With Maturation (M2)",
        "Childhood Acute Myeloblastic Leukemia Without Maturation (M1)",
        "Childhood Acute Myelomonocytic Leukemia (M4)",
        "Childhood Myelodysplastic Syndromes",
        "de Novo Myelodysplastic Syndromes",
        "Secondary Acute Myeloid Leukemia",
        "Secondary Myelodysplastic Syndromes",
        "Untreated Childhood Acute Myeloid Leukemia and Other Myeloid Malignancies"
      ],
      "interventions": [
        {
          "name": "asparaginase",
          "type": "DRUG"
        },
        {
          "name": "daunorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "thioguanine",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "4 Years",
        "sex": "ALL",
        "summary": "Up to 4 Years"
      },
      "enrollment_count": 205,
      "start_date": "2007-03",
      "completion_date": "2021-12-31",
      "has_results": true,
      "last_update_posted_date": "2022-01-28",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 88,
      "location_summary": "Phoenix, Arizona • Downey, California • Long Beach, California + 73 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00369317"
    },
    {
      "nct_id": "NCT02304302",
      "title": "Down Syndrome Memantine Follow-up Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Down Syndrome",
        "Intellectual Disability"
      ],
      "interventions": [
        {
          "name": "Memantine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "32 Years",
        "sex": "ALL",
        "summary": "15 Years to 32 Years"
      },
      "enrollment_count": 160,
      "start_date": "2014-10",
      "completion_date": "2020-07-22",
      "has_results": true,
      "last_update_posted_date": "2023-06-27",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02304302"
    },
    {
      "nct_id": "NCT07416201",
      "title": "Natural History of Dysregulation and Aging of the Immune System in People With Trisomy 21 With and Without Thymectomy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Down Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "1 Year to 120 Years"
      },
      "enrollment_count": 700,
      "start_date": "2026-06-23",
      "completion_date": "2040-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-19",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07416201"
    },
    {
      "nct_id": "NCT03192540",
      "title": "The Impact of an 8-week Supported Exercise Program on Fitness and Symptoms in Adolescents With Down Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Down Syndrome"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "10 Years to 17 Years"
      },
      "enrollment_count": 15,
      "start_date": "2018-09-15",
      "completion_date": "2021-03-31",
      "has_results": false,
      "last_update_posted_date": "2022-01-26",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03192540"
    },
    {
      "nct_id": "NCT01663350",
      "title": "Comparison of Aneuploidy Risk Evaluations",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy",
        "Down Syndrome",
        "Edwards Syndrome",
        "Patau Syndrome",
        "Turners Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Verinata Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 3000,
      "start_date": "2012-07",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-07-16",
      "last_synced_at": "2026-10-21T03:08:17.298Z",
      "location_count": 26,
      "location_summary": "San Diego, California • Atlanta, Georgia • Chicago, Illinois + 22 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Royal Oak",
          "state": "Michigan"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01663350"
    }
  ]
}