{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Factor+IX+Deficiency",
    "query": {
      "condition": "Factor IX Deficiency"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 43,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Factor+IX+Deficiency&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T01:05:46.933Z",
  "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": "NCT02402829",
      "title": "A Study Comparing Factor Level and Inhibitor Titer Testing Results Drawn From Central Venous Lines and Venipuncture",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia A",
        "Factor VIII Deficiency",
        "Hemophilia",
        "Hemophilia B",
        "Factor IX Deficiency"
      ],
      "interventions": [
        {
          "name": "Peripheral Vein Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Children's Mercy Hospital Kansas City",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "MALE",
        "summary": "1 Year to 21 Years · Male only"
      },
      "enrollment_count": 3,
      "start_date": "2014-11",
      "completion_date": "2018-11-28",
      "has_results": false,
      "last_update_posted_date": "2021-01-06",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02402829"
    },
    {
      "nct_id": "NCT04083781",
      "title": "Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia With Inhibitors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Haemophilia A With Inhibitors",
        "Haemophilia B With Inhibitors"
      ],
      "interventions": [
        {
          "name": "Concizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 134,
      "start_date": "2019-10-21",
      "completion_date": "2027-02-21",
      "has_results": true,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 7,
      "location_summary": "Orange, California • Atlanta, Georgia • Indianapolis, Indiana + 4 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04083781"
    },
    {
      "nct_id": "NCT01090206",
      "title": "Correlation Between Vitamin D Status and Bone Mineral Density in Patients With Hemophilia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hemophilia A",
        "Hemophilia B",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D and calcium",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "21 Years",
        "sex": "MALE",
        "summary": "2 Years to 21 Years · Male only"
      },
      "enrollment_count": 20,
      "start_date": "2010-03",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2016-04-29",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01090206"
    },
    {
      "nct_id": "NCT00956345",
      "title": "Safety of 40K Pegylated Recombinant Factor IX in Non-Bleeding Patients With Haemophilia B",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Congenital Bleeding Disorder",
        "Haemophilia B"
      ],
      "interventions": [
        {
          "name": "nonacog beta pegol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 18,
      "start_date": "2009-08",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2017-01-20",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 3,
      "location_summary": "Cincinnati, Ohio • Portland, Oregon • Richmond, Virginia",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00956345"
    },
    {
      "nct_id": "NCT01561391",
      "title": "Safety and Efficacy of Activated Recombinant Human Factor VII in Haemophilia Patients With Inhibitors During and After Major Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Congenital Bleeding Disorder",
        "Haemophilia A With Inhibitors",
        "Haemophilia B With Inhibitors"
      ],
      "interventions": [
        {
          "name": "activated recombinant human factor VII",
          "type": "DRUG"
        },
        {
          "name": "factor IX",
          "type": "OTHER"
        },
        {
          "name": "factor VIII",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "1998-04",
      "completion_date": "2004-05",
      "has_results": false,
      "last_update_posted_date": "2023-12-29",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • Chicago, Illinois • New Orleans, Louisiana + 9 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01561391"
    },
    {
      "nct_id": "NCT03741881",
      "title": "A Study Following People With Haemophilia A and B, With or Without Inhibitors, When on Usual Treatment (Explorer™6)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Haemophilia A",
        "Haemophilia A With Inhibitors",
        "Haemophilia B",
        "Haemophilia B With Inhibitors"
      ],
      "interventions": [
        {
          "name": "No treatment given",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Novo Nordisk A/S",
      "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": 231,
      "start_date": "2018-12-18",
      "completion_date": "2021-10-25",
      "has_results": false,
      "last_update_posted_date": "2021-11-23",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 29,
      "location_summary": "Los Angeles, California • Sacramento, California • Aurora, Colorado + 24 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03741881"
    },
    {
      "nct_id": "NCT00002386",
      "title": "Effect of Indinavir Plus Two Other Anti-HIV Drugs on Blood Clotting in HIV-Positive Males With Hemophilia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infections",
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "Indinavir sulfate",
          "type": "DRUG"
        },
        {
          "name": "Lamivudine",
          "type": "DRUG"
        },
        {
          "name": "Stavudine",
          "type": "DRUG"
        },
        {
          "name": "Zidovudine",
          "type": "DRUG"
        },
        {
          "name": "Zalcitabine",
          "type": "DRUG"
        },
        {
          "name": "Didanosine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "16 Years and older · Male only"
      },
      "enrollment_count": 55,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 7,
      "location_summary": "San Francisco, California • Washington D.C., District of Columbia • Atlanta, Georgia + 4 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002386"
    },
    {
      "nct_id": "NCT04082429",
      "title": "Research Study to Look at How Well the Drug Concizumab Works in Your Body if You Have Haemophilia Without Inhibitors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Haemophilia A Without Inhibitors",
        "Haemophilia B Without Inhibitors"
      ],
      "interventions": [
        {
          "name": "Concizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "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": 156,
      "start_date": "2019-11-13",
      "completion_date": "2028-02-21",
      "has_results": true,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • Orange, California • Augusta, Georgia + 9 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04082429"
    },
    {
      "nct_id": "NCT03075670",
      "title": "A Trial Comparing Nonacog Beta Pegol (N9-GP) and ALPROLIX® in Patients With Haemophilia B",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Congenital Bleeding Disorder",
        "Haemophilia B"
      ],
      "interventions": [
        {
          "name": "N9-GP",
          "type": "DRUG"
        },
        {
          "name": "ALPROLIX®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "18 Years to 70 Years · Male only"
      },
      "enrollment_count": 15,
      "start_date": "2017-03-07",
      "completion_date": "2017-12-08",
      "has_results": false,
      "last_update_posted_date": "2023-05-26",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 7,
      "location_summary": "Phoenix, Arizona • Chicago, Illinois • Peoria, Illinois + 4 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "East Lansing",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03075670"
    },
    {
      "nct_id": "NCT01988532",
      "title": "Impact of Pain on Functional Impairment and Quality of Life in Adults With Hemophilia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Bleeding Disorder",
        "Haemophilia A",
        "Haemophilia A With Inhibitors",
        "Haemophilia B",
        "Haemophilia B With Inhibitors"
      ],
      "interventions": [
        {
          "name": "No treatment given",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 381,
      "start_date": "2013-10",
      "completion_date": "2014-10",
      "has_results": false,
      "last_update_posted_date": "2017-01-18",
      "last_synced_at": "2026-05-22T01:05:46.933Z",
      "location_count": 1,
      "location_summary": "Plainsboro, New Jersey",
      "locations": [
        {
          "city": "Plainsboro",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01988532"
    }
  ]
}