{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Factor+IX&page=5",
    "query": {
      "intervention": "Factor IX",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 113,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Factor+IX&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Factor+IX&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T11:37:57.500Z",
  "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": "NCT06429787",
      "title": "Post Marketing Observational Study on Safety of BALFAXAR vs. KCENTRA for Reversal of Vitamin K Antagonist Induced Anticoagulation in Adults Undergoing Urgent Surgery or Invasive Procedure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vitamin K-Dependent Coagulation Defect",
        "Significant Bleeding Risk"
      ],
      "interventions": [
        {
          "name": "Balfaxar",
          "type": "DRUG"
        },
        {
          "name": "Kcentra",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Octapharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3574,
      "start_date": "2025-02-14",
      "completion_date": "2032-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06429787"
    },
    {
      "nct_id": "NCT02448680",
      "title": "A Phase III Study on the Safety, Pharmacokinetics and Efficacy of Coagulation Factor VIIa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A With Inhibitors",
        "Hemophilia B With Inhibitors"
      ],
      "interventions": [
        {
          "name": "Coagulation FVIIa (Recombinant)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Laboratoire français de Fractionnement et de Biotechnologies",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "11 Years",
        "sex": "MALE",
        "summary": "Up to 11 Years · Male only"
      },
      "enrollment_count": 25,
      "start_date": "2015-12-07",
      "completion_date": "2017-08-30",
      "has_results": true,
      "last_update_posted_date": "2022-02-25",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 3,
      "location_summary": "Aurora, Colorado • Oklahoma City, Oklahoma • Dallas, Texas",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02448680"
    },
    {
      "nct_id": "NCT03341156",
      "title": "Administration of Prothrombin Complex Concentrate vs. Standard Transfusion During/After Heart Transplantation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Disease End Stage",
        "Heart Failure，Congestive"
      ],
      "interventions": [
        {
          "name": "Kcentra",
          "type": "DRUG"
        },
        {
          "name": "Frozen Plasma Product, Human",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2018-07-11",
      "completion_date": "2025-02-20",
      "has_results": false,
      "last_update_posted_date": "2025-05-23",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 3,
      "location_summary": "Baltimore, Maryland • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03341156"
    },
    {
      "nct_id": "NCT03754790",
      "title": "Long-term Safety and Efficacy Study of Fitusiran in Patients With Hemophilia A or B, With or Without Inhibitory Antibodies to Factor VIII or IX",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia"
      ],
      "interventions": [
        {
          "name": "Fitusiran",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genzyme, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "12 Years and older · Male only"
      },
      "enrollment_count": 281,
      "start_date": "2019-01-09",
      "completion_date": "2026-09-14",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Orange, California + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03754790"
    },
    {
      "nct_id": "NCT03272568",
      "title": "Extended Half Life Factor (EHF) Products For Heavy Menstrual Bleeding in Hemophilia Carriers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Hemophilia",
        "Menstrual Flow Excessive"
      ],
      "interventions": [
        {
          "name": "Recombinant FVIII Fc fusion product Eloctate",
          "type": "DRUG"
        },
        {
          "name": "Recombinant FIX Fc fusion product Alprolix",
          "type": "DRUG"
        },
        {
          "name": "Patient-operated diagnostic device for anemia AnemoCheck.",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 55 Years · Female only"
      },
      "enrollment_count": 3,
      "start_date": "2018-02-14",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-05-18",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03272568"
    },
    {
      "nct_id": "NCT05695391",
      "title": "Safety and Efficacy of FVIIa to Prevent Excessive Bleeding in Hemophilia Patients With Inhibitors Undergoing Major Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia"
      ],
      "interventions": [
        {
          "name": "Coagulation Factor VIIa (Recombinant)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Laboratoire français de Fractionnement et de Biotechnologies",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "12 Years to 65 Years · Male only"
      },
      "enrollment_count": 2,
      "start_date": "2024-06-07",
      "completion_date": "2025-07-07",
      "has_results": true,
      "last_update_posted_date": "2026-07-31",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Atlanta, Georgia • New Orleans, Louisiana + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05695391"
    },
    {
      "nct_id": "NCT05010707",
      "title": "Transgender Estradiol Affirming Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Transgenderism"
      ],
      "interventions": [
        {
          "name": "Transdermal patch",
          "type": "DRUG"
        },
        {
          "name": "Pro-thrombotic markers",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Metabolic markers",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Hormone Profile",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Daily Sublingual Tablet",
          "type": "DRUG"
        },
        {
          "name": "BID Sublingual Tablet",
          "type": "DRUG"
        },
        {
          "name": "Spironolactone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 39,
      "start_date": "2021-08-02",
      "completion_date": "2024-01-01",
      "has_results": true,
      "last_update_posted_date": "2024-11-26",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05010707"
    },
    {
      "nct_id": "NCT01352143",
      "title": "Thrombin Generation in Neonatal Plasma After Cardiopulmonary Bypass",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiopulmonary Bypass"
      ],
      "interventions": [
        {
          "name": "Recombinant activated factor VII",
          "type": "DRUG"
        },
        {
          "name": "Prothrombin Complex Concentrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Days",
        "sex": "ALL",
        "summary": "Up to 30 Days"
      },
      "enrollment_count": 24,
      "start_date": "2011-03",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2013-11-20",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01352143"
    },
    {
      "nct_id": "NCT00515710",
      "title": "LTFU for Gene Transfer Subjects With Hemophilia B",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Spark Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 4,
      "start_date": "2007-08",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2020-05-15",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00515710"
    },
    {
      "nct_id": "NCT02048111",
      "title": "Study of Recombinant Factor IX Product, IB1001, in Previously Treated Subjects With Hemophilia B",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "IB1001",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Cangene Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-03",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2016-08-23",
      "last_synced_at": "2026-10-19T11:37:57.500Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02048111"
    }
  ]
}