{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemophilia+A+or+B&page=2",
    "query": {
      "condition": "Hemophilia A or B",
      "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?condition=Hemophilia+A+or+B&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T01:36:45.068Z",
  "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": "NCT04489537",
      "title": "Study of Coagulation Factor VIIa Marzeptacog Alfa (Activated) in Subjects With Hemophilia A or B",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A With Inhibitor",
        "Hemophilia B With Inhibitor"
      ],
      "interventions": [
        {
          "name": "MarzAA",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Catalyst Biosciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2021-05-04",
      "completion_date": "2021-12-01",
      "has_results": false,
      "last_update_posted_date": "2021-12-17",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04489537"
    },
    {
      "nct_id": "NCT03549871",
      "title": "A Study of Fitusiran in Severe Hemophilia A and B Patients Previously Receiving Factor or Bypassing Agent Prophylaxis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia"
      ],
      "interventions": [
        {
          "name": "Fitusiran",
          "type": "DRUG"
        },
        {
          "name": "BPA prophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Factor (FVIII or FIX) prophylaxis",
          "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": 80,
      "start_date": "2018-07-25",
      "completion_date": "2022-03-25",
      "has_results": true,
      "last_update_posted_date": "2023-02-06",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03549871"
    },
    {
      "nct_id": "NCT07285460",
      "title": "A Study to Investigate the Efficacy and Safety of Fitusiran Prophylaxis in Male Participants Aged 1 to Less Than 12 Years With Hemophilia A or B",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia"
      ],
      "interventions": [
        {
          "name": "Fitusiran",
          "type": "DRUG"
        },
        {
          "name": "Clotting factor concentrates (CFC) or bypassing agents (BPA)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Antithrombin concentrate (ATIIIC)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "11 Years",
        "sex": "MALE",
        "summary": "1 Year to 11 Years · Male only"
      },
      "enrollment_count": 85,
      "start_date": "2025-12-18",
      "completion_date": "2031-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-25",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Orange, California • Las Vegas, Nevada + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "Hackensack",
          "state": "New Jersey"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07285460"
    },
    {
      "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": "2026-07-24T01:36:45.068Z",
      "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": "NCT04647227",
      "title": "SEVENFACT® for Bleeding Events in Hemophilia With Inhibitors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hemophilia A With Inhibitor",
        "Hemophilia B With Inhibitor"
      ],
      "interventions": [
        {
          "name": "coagulation factor VIIa [recombinant]-jncw",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "American Thrombosis and Hemostasis Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "12 Years to 100 Years"
      },
      "enrollment_count": 55,
      "start_date": "2021-06-28",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-12",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 21,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Los Angeles, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04647227"
    },
    {
      "nct_id": "NCT03489291",
      "title": "Dose Confirmation Trial of AAV5-hFIXco-Padua",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "AAV5-hFIXco-Padua (AMT-061)",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "CSL Behring",
      "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": 3,
      "start_date": "2018-07-24",
      "completion_date": "2023-09-21",
      "has_results": true,
      "last_update_posted_date": "2024-06-28",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Sacramento, California • San Diego, California + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03489291"
    },
    {
      "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": "ACTIVE_NOT_RECRUITING",
      "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": "2026-11-05",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "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": "NCT05789524",
      "title": "The Efficacy and Safety of SerpinPC in Participants with Severe Hemophilia a or Moderately Severe to Severe Hemophilia B",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hemophilia a",
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "SerpinPC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ApcinteX Ltd",
      "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": 60,
      "start_date": "2023-07-06",
      "completion_date": "2025-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-03-11",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 10,
      "location_summary": "Aurora, Colorado • Tampa, Florida • Indianapolis, Indiana + 7 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05789524"
    },
    {
      "nct_id": "NCT01510418",
      "title": "Socialization of Adult Men With Congenital Hemophilia A or B",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia A",
        "Hemophilia B"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2011-05",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2016-08-03",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01510418"
    },
    {
      "nct_id": "NCT06297486",
      "title": "Study of a Gene Therapy Treatment for Hemophilia A",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "SPK-8011",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "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": 0,
      "start_date": "2024-03-13",
      "completion_date": "2035-09-04",
      "has_results": false,
      "last_update_posted_date": "2024-12-13",
      "last_synced_at": "2026-07-24T01:36:45.068Z",
      "location_count": 27,
      "location_summary": "Phoenix, Arizona • Loma Linda, California • Los Angeles, California + 23 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06297486"
    }
  ]
}