{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemoglobinopathy+%28Disorder%29&page=5",
    "query": {
      "condition": "Hemoglobinopathy (Disorder)",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 831,
    "total_pages": 84,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemoglobinopathy+%28Disorder%29&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemoglobinopathy+%28Disorder%29&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T00:31:27.815Z",
  "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": "NCT01848691",
      "title": "Carbon Monoxide Monitor for the Measurement of End-Tidal Carbon Monoxide Levels in Children With or Without Hemolysis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sickle Cell Anemia"
      ],
      "interventions": [
        {
          "name": "Measurement of carbon monoxide level in exhaled breath",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ashutosh Lal",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "5 Years to 14 Years"
      },
      "enrollment_count": 40,
      "start_date": "2012-10",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2014-06-02",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01848691"
    },
    {
      "nct_id": "NCT00860782",
      "title": "Parent Educational Program for Children With Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemoglobin SC Disease",
        "Anemia, Sickle Cell"
      ],
      "interventions": [
        {
          "name": "Parent Educational Support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 73,
      "start_date": "2008-08",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2021-08-02",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00860782"
    },
    {
      "nct_id": "NCT03036813",
      "title": "Study to Evaluate the Effect of Voxelotor Administered Orally to Patients With Sickle Cell Disease (GBT_HOPE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "voxelotor",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 449,
      "start_date": "2016-12",
      "completion_date": "2019-10-08",
      "has_results": true,
      "last_update_posted_date": "2023-07-27",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Little Rock, Arkansas + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03036813"
    },
    {
      "nct_id": "NCT04938635",
      "title": "Efficacy and Safety Study of Multiple Doses of VIT-2763 in Adults With Transfusion-dependent Beta-thalassemia",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Beta-Thalassemia"
      ],
      "interventions": [
        {
          "name": "VIT-2763 60 mg QD",
          "type": "DRUG"
        },
        {
          "name": "VIT-2763 60 mg BID",
          "type": "DRUG"
        },
        {
          "name": "VIT-2763 120 mg BID",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vifor (International) Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-09-20",
      "completion_date": "2023-07",
      "has_results": false,
      "last_update_posted_date": "2022-11-10",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 1,
      "location_summary": "Whittier, California",
      "locations": [
        {
          "city": "Whittier",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04938635"
    },
    {
      "nct_id": "NCT00113152",
      "title": "Heart Disease in Sickle Cell Anemia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Anemia",
        "Pulmonary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 120,
      "start_date": "2005-06-02",
      "completion_date": "2007-10-02",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00113152"
    },
    {
      "nct_id": "NCT05528796",
      "title": "Uncovering the Etiologies of Non-immune Hydrops Fetalis",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non-Immune Hydrops Fetalis"
      ],
      "interventions": [
        {
          "name": "Whole genome sequencing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 500,
      "start_date": "2022-03-01",
      "completion_date": "2027-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05528796"
    },
    {
      "nct_id": "NCT01732718",
      "title": "Effect of Atorvastatin on Endothelial Dysfunction and Albuminuria in Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Sickle Cell Nephropathy"
      ],
      "interventions": [
        {
          "name": "Atorvastatin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 13,
      "start_date": "2013-09",
      "completion_date": "2018-01-09",
      "has_results": true,
      "last_update_posted_date": "2020-03-18",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01732718"
    },
    {
      "nct_id": "NCT04426591",
      "title": "Biotin-RBC Transfusion in SCD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Biotin Labeled Red Blood Cells",
          "type": "DRUG"
        },
        {
          "name": "Pathogen-reduced Biotin Labeled Red Blood Cells",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Marianne Yee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "2 Years to 65 Years"
      },
      "enrollment_count": 22,
      "start_date": "2021-10-29",
      "completion_date": "2025-04-30",
      "has_results": true,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04426591"
    },
    {
      "nct_id": "NCT04586985",
      "title": "Safety, Tolerability and Pharmacokinetics of FTX-6058",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Adult Subjects",
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "FTX-6058/placebo oral capsule(s)",
          "type": "DRUG"
        },
        {
          "name": "FTX-6058 - Two Dosing Periods",
          "type": "DRUG"
        },
        {
          "name": "FTX-6058 / Midazolam Syrup",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Fulcrum Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 109,
      "start_date": "2020-10-26",
      "completion_date": "2022-11-15",
      "has_results": false,
      "last_update_posted_date": "2022-12-12",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • Overland Park, Kansas",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04586985"
    },
    {
      "nct_id": "NCT03573882",
      "title": "Study to Assess the Effect of Long-term Treatment With Voxelotor in Participants Who Have Completed Treatment in Study GBT440-031",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Voxelotor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 179,
      "start_date": "2018-06-06",
      "completion_date": "2024-11-12",
      "has_results": true,
      "last_update_posted_date": "2025-11-18",
      "last_synced_at": "2026-10-06T00:31:27.815Z",
      "location_count": 34,
      "location_summary": "Little Rock, Arkansas • Oakland, California • Miami, Florida + 20 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03573882"
    }
  ]
}