{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Congenital+Anemias&page=13",
    "query": {
      "condition": "Congenital Anemias",
      "page": 13
    },
    "page_size": 10
  },
  "pagination": {
    "page": 13,
    "page_size": 10,
    "total_count": 1044,
    "total_pages": 105,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Congenital+Anemias&page=14&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Congenital+Anemias&page=12&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T18:00:50.506Z",
  "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": "NCT00012545",
      "title": "Collection and Storage of Umbilical Cord Stem Cells for Treatment of Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Disease",
        "Sickle Cell Trait"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 307,
      "start_date": "2001-11-01",
      "completion_date": "2023-10-17",
      "has_results": false,
      "last_update_posted_date": "2026-01-09",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00012545"
    },
    {
      "nct_id": "NCT04528355",
      "title": "Data Collection Study of Patients With Non-Malignant Disorders Undergoing UCBT, BMT or PBSCT With RIC",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Immunodeficiency (PID)",
        "Congenital Bone Marrow Failure Syndromes",
        "Inherited Metabolic Disorders (IMD)",
        "Hereditary Anemias",
        "Inflammatory Conditions"
      ],
      "interventions": [
        {
          "name": "data collection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Paul Szabolcs",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "2 Months to 60 Years"
      },
      "enrollment_count": 50,
      "start_date": "2020-08-20",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04528355"
    },
    {
      "nct_id": "NCT07064941",
      "title": "Effect of Exercise on Body Composition and Bone Health in Patients With Thalassemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Thalassemia"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "14 Years to 40 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-12-01",
      "completion_date": "2026-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 2,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07064941"
    },
    {
      "nct_id": "NCT00508027",
      "title": "Simvastatin (Zocor) Therapy in Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Simvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2007-06",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2013-09-17",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00508027"
    },
    {
      "nct_id": "NCT02307786",
      "title": "Long Term Outcomes in β Thalassemia Major",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thalassemia Major"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Ann & Robert H Lurie Children's Hospital of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "0 Years to 30 Years"
      },
      "enrollment_count": 176,
      "start_date": "2014-06",
      "completion_date": "2016-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-02-11",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02307786"
    },
    {
      "nct_id": "NCT00957931",
      "title": "Allo-HCT MUD for Non-malignant Red Blood Cell (RBC) Disorders: Sickle Cell, Thal, and DBA: Reduced Intensity Conditioning, Co-tx MSCs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Thalassemia",
        "Diamond-Blackfan Anemia"
      ],
      "interventions": [
        {
          "name": "Bone marrow transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Mesenchymal Stromal Cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "1 Year to 25 Years"
      },
      "enrollment_count": 6,
      "start_date": "2009-03",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2018-08-06",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 2,
      "location_summary": "Birmingham, Alabama • Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00957931"
    },
    {
      "nct_id": "NCT06635902",
      "title": "Intravenous L-Citrulline for Vaso-occlusive Pain Episode in Sickle Cell Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Vaso-occlusive Pain Episode"
      ],
      "interventions": [
        {
          "name": "L-citrulline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Suvankar Majumdar",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "4 Years to 21 Years"
      },
      "enrollment_count": 99,
      "start_date": "2024-12-22",
      "completion_date": "2029-03",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06635902"
    },
    {
      "nct_id": "NCT00343954",
      "title": "PK and PD Responses to Oral L-Citrulline in Patients With Sickle Cell Disease",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "L-citrulline tablets, 1000 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Angiogenix",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 12,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2006-06-23",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00343954"
    },
    {
      "nct_id": "NCT07656415",
      "title": "A Study to Investigate the Effect of Mitapivat on Transfusion Burden in Subjects With Sickle Cell Disease (SCD)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Mitapivat Matched Placebo",
          "type": "DRUG"
        },
        {
          "name": "Mitapivat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Agios Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 159,
      "start_date": "2026-07-21",
      "completion_date": "2030-08",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 3,
      "location_summary": "Indianapolis, Indiana • Grand Rapids, Michigan • Flowood, Mississippi",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "Flowood",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07656415"
    },
    {
      "nct_id": "NCT01443728",
      "title": "Vitamin D for Sickle-cell Respiratory Complications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Vitamin D Deficiency",
        "Acute Chest Syndrome",
        "Asthma",
        "Respiratory Infections"
      ],
      "interventions": [
        {
          "name": "Experimental: Vitamin D3 100,000 IU",
          "type": "DRUG"
        },
        {
          "name": "Active Comparator: Vitamin D3 12,000 IU",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gary M Brittenham, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "3 Years to 20 Years"
      },
      "enrollment_count": 70,
      "start_date": "2011-12-13",
      "completion_date": "2015-02-15",
      "has_results": true,
      "last_update_posted_date": "2024-08-09",
      "last_synced_at": "2026-10-14T18:00:50.506Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01443728"
    }
  ]
}