{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Factor+IX&page=2",
    "query": {
      "intervention": "Factor IX",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Factor+IX&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T11:35:13.410Z",
  "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": "NCT00195221",
      "title": "Study to Describe the Allergic Reactions to Factor IX in Patients With Hemophilia B",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia B",
        "Allergic Reactions"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wyeth is now a wholly owned subsidiary of Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 166,
      "start_date": "2005-02",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2007-12-05",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 15,
      "location_summary": "Phoenix, Arizona • Orange, California • Atlanta, Georgia + 12 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00195221"
    },
    {
      "nct_id": "NCT05156983",
      "title": "A Study of TAK-330 to Reverse the Effects of Factor Xa Inhibitors For Adults Needing Urgent Surgery",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Coagulation Disorder"
      ],
      "interventions": [
        {
          "name": "TAK-330",
          "type": "DRUG"
        },
        {
          "name": "SOC 4F-PCC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 440,
      "start_date": "2022-08-24",
      "completion_date": "2028-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 13,
      "location_summary": "Arkansas City, Arkansas • Sacramento, California • Englewood, Colorado + 10 more",
      "locations": [
        {
          "city": "Arkansas City",
          "state": "Arkansas"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05156983"
    },
    {
      "nct_id": "NCT03861273",
      "title": "A Study to Evaluate the Efficacy and Safety of Factor IX Gene Therapy With PF-06838435 in Adult Males With Moderately Severe to Severe Hemophilia B",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "PF-06838435/ fidanacogene elaparvovec",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "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": 51,
      "start_date": "2019-07-29",
      "completion_date": "2031-02-25",
      "has_results": true,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 17,
      "location_summary": "San Francisco, California • Aurora, Colorado • Indianapolis, Indiana + 3 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03861273"
    },
    {
      "nct_id": "NCT07290634",
      "title": "Comparative Outcomes of PCC and Recombinant Activated Factor VIIa in Trauma-Associated Massive Transfusion",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thromboembolus",
        "Massive Blood Transfusion; Thrombocytopenia",
        "Trauma"
      ],
      "interventions": [
        {
          "name": "Number of Participants with massive blood transfusion",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Zeliha Alicikus",
      "sponsor_class": "OTHER_GOV",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2026-04-30",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 2,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07290634"
    },
    {
      "nct_id": "NCT02740335",
      "title": "Study of Octaplex, a Four-factor Prothrombin Complex Concentrate (4F-PCC) and Beriplex® P/N (Kcentra) for the Reversal of Vitamin K Antagonist (VKA) Induced Anticoagulation in Patients Needing Urgent Surgery With Significant Bleeding Risk.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Significant Bleeding Risk"
      ],
      "interventions": [
        {
          "name": "Octaplex",
          "type": "DRUG"
        },
        {
          "name": "Beriplex P/N (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": 208,
      "start_date": "2017-06-08",
      "completion_date": "2022-02-23",
      "has_results": true,
      "last_update_posted_date": "2023-03-08",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 22,
      "location_summary": "Aurora, Colorado • New Haven, Connecticut • Miami, Florida + 14 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02740335"
    },
    {
      "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": "2026-09-04T11:35:13.410Z",
      "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": "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": "2026-09-04T11:35:13.410Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03272568"
    },
    {
      "nct_id": "NCT02695160",
      "title": "Ascending Dose Study of Genome Editing by Zinc Finger Nuclease Therapeutic SB-FIX in Subjects With Severe Hemophilia B",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "SB-FIX",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sangamo Therapeutics",
      "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": 1,
      "start_date": "2016-11-15",
      "completion_date": "2021-04-19",
      "has_results": true,
      "last_update_posted_date": "2024-07-19",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "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/NCT02695160"
    },
    {
      "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": "2026-09-04T11:35:13.410Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01352143"
    },
    {
      "nct_id": "NCT03358836",
      "title": "Joint Health Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Bloodworks",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "16 Years and older · Male only"
      },
      "enrollment_count": 8,
      "start_date": "2017-11-15",
      "completion_date": "2020-08-17",
      "has_results": false,
      "last_update_posted_date": "2022-06-22",
      "last_synced_at": "2026-09-04T11:35:13.410Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • San Diego, California • New Orleans, Louisiana + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03358836"
    }
  ]
}