{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemophilia+A%2C+Severe&page=4",
    "query": {
      "condition": "Hemophilia A, Severe",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 122,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemophilia+A%2C+Severe&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hemophilia+A%2C+Severe&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-11T13:49:29.501Z",
  "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": "NCT01620801",
      "title": "Hemophilia B Gene Therapy With AAV8 Vector",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "AAV8-hFIX19",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "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": "2012-10",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2019-03-12",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01620801"
    },
    {
      "nct_id": "NCT03938792",
      "title": "Study of the Efficacy and Safety PF-06741086 in Adult and Teenage Participants With Severe Hemophilia A or Moderately Severe to Severe Hemophilia B",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A",
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "PF-06741086",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "74 Years",
        "sex": "MALE",
        "summary": "12 Years to 74 Years · Male only"
      },
      "enrollment_count": 188,
      "start_date": "2020-03-09",
      "completion_date": "2025-04-29",
      "has_results": true,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 4,
      "location_summary": "Tampa, Florida • Iowa City, Iowa • New Hyde Park, New York + 1 more",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03938792"
    },
    {
      "nct_id": "NCT05611801",
      "title": "A Clinical Trial of Study Medicine (Marstacimab) in Pediatric Patients With Hemophilia A or Hemophilia B",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A",
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "marstacimab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "17 Years",
        "sex": "MALE",
        "summary": "1 Year to 17 Years · Male only"
      },
      "enrollment_count": 100,
      "start_date": "2022-12-09",
      "completion_date": "2028-09-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05611801"
    },
    {
      "nct_id": "NCT07414511",
      "title": "Hemophilia A Research Program",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia A",
        "Hemophilia A, Severe",
        "Factor VIII (FVIII)",
        "FVIII Deficiency",
        "Carrier of Hemophilia A",
        "Inhibitors",
        "Pregnancy",
        "Maternal Blood Loss",
        "Pregnancy Complications",
        "Bleeding Disorder",
        "Hemorrhage, Postpartum",
        "Alloimmunization",
        "X-Linked"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 500,
      "start_date": "2024-07-31",
      "completion_date": "2029-08",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07414511"
    },
    {
      "nct_id": "NCT01736475",
      "title": "Study Investigating a PEGylated Recombinant Factor VIII (BAX 855) for Hemophilia A (PROLONG-ATE Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "Antihemophilic Factor (Recombinant) - Plasma/Albumin Free Method",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PEGylated Recombinant Factor VIII",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Baxalta now part of Shire",
      "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": 159,
      "start_date": "2013-01-31",
      "completion_date": "2014-07-17",
      "has_results": true,
      "last_update_posted_date": "2021-05-20",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 17,
      "location_summary": "Aurora, Colorado • Gainesville, Florida • Atlanta, Georgia + 14 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01736475"
    },
    {
      "nct_id": "NCT01626105",
      "title": "Personalized Prediction of Tolerance and Immunogenicity in Hemophilia",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Victor J Marder, M.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "2 Years and older · Male only"
      },
      "enrollment_count": 55,
      "start_date": "2012-06",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2012-07-26",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01626105"
    },
    {
      "nct_id": "NCT01619046",
      "title": "Safety, Efficacy and Pharmacokinetics of GreenGene™ F to Previously Treated Patients With Severe Hemophilia A",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "GreenGene™ F and an approved recombinant Factor VIII product",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GreenGene™ F",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Green Cross Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 124,
      "start_date": "2013-03",
      "completion_date": "2015-09",
      "has_results": false,
      "last_update_posted_date": "2014-07-03",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • Los Angeles, California • Torrance, California + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01619046"
    },
    {
      "nct_id": "NCT05147662",
      "title": "A Study to Learn How Safe the Study Treatment BAY94-9027 is and How it Affects the Body in Previously Treated Children Aged 7 to Less Than 12 Years With Severe Hemophilia A, a Genetic Bleeding Disorder That is Caused by the Lack of a Protein Called Clotting Factor 8 (FVIII) in the Blood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Treatment of Bleeding",
        "Prophylaxis of Bleeding",
        "Hemophilia A",
        "Children"
      ],
      "interventions": [
        {
          "name": "Damoctocog alfa pegol (Jivi, BAY94-9027)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "11 Years",
        "sex": "MALE",
        "summary": "7 Years to 11 Years · Male only"
      },
      "enrollment_count": 36,
      "start_date": "2022-03-23",
      "completion_date": "2025-06-25",
      "has_results": true,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "location_count": 1,
      "location_summary": "Orlando, Florida",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05147662"
    },
    {
      "nct_id": "NCT03103542",
      "title": "Study of rFVIIIFc for Immune Tolerance Induction (ITI) in Haemophilia A Patients With Inhibitors Who Have Failed Previous ITI Therapies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "Recombinant coagulation factor (rFVIIIFc)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Swedish Orphan Biovitrum",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 16,
      "start_date": "2017-08-29",
      "completion_date": "2020-08-31",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-11T13:49:29.501Z",
      "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/NCT03103542"
    },
    {
      "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": "2026-10-11T13:49:29.501Z",
      "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"
    }
  ]
}