{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Severe+Combined+Immunodeficiency&page=4",
    "query": {
      "condition": "Severe Combined Immunodeficiency",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 73,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Severe+Combined+Immunodeficiency&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Severe+Combined+Immunodeficiency&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T02:46:37.404Z",
  "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": "NCT02231710",
      "title": "Safety Study of Gene Modified Donor T Cell Infusion After Stem Cell Transplant for Non-Malignant Diseases",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Primary Immune Deficiency Disorders",
        "Hemophagocytic Lymphohistiocytosis",
        "Inherited Bone Marrow Failure Syndrome",
        "Hemoglobinopathies",
        "Metabolic Disorders"
      ],
      "interventions": [
        {
          "name": "BPX-501 and Rimiducid",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Bellicum Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "4 Months to 55 Years"
      },
      "enrollment_count": 1,
      "start_date": "2015-02",
      "completion_date": "2018-01",
      "has_results": true,
      "last_update_posted_date": "2024-03-25",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02231710"
    },
    {
      "nct_id": "NCT05545319",
      "title": "A Study to Learn About the Medicine Called Nirmatrelvir Used in Combination With Ritonavir in People With Weakened Immune Systems or at Increased Risk for Poor Outcomes Who Are Hospitalized Due to Severe COVID-19",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)",
        "Coronavirus Disease 2019 (COVID-19)",
        "Immunocompromised",
        "Hospitalization",
        "Child, Hospitalized"
      ],
      "interventions": [
        {
          "name": "Nirmatrelvir",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Placebo for nirmatrelvir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "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": "2022-12-13",
      "completion_date": "2024-01-06",
      "has_results": false,
      "last_update_posted_date": "2023-03-01",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 2,
      "location_summary": "Cooperstown, New York • New York, New York",
      "locations": [
        {
          "city": "Cooperstown",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05545319"
    },
    {
      "nct_id": "NCT01390220",
      "title": "Study to Evaluate the Safety and Efficacy of USL261 (Intranasal Midazolam) in Patients With Seizure Clusters",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Epilepsy"
      ],
      "interventions": [
        {
          "name": "USL261",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UCB Biopharma S.P.R.L.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 292,
      "start_date": "2011-06",
      "completion_date": "2017-03",
      "has_results": true,
      "last_update_posted_date": "2019-10-10",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 46,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 43 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01390220"
    },
    {
      "nct_id": "NCT03315078",
      "title": "Lentiviral Gene Transfer for Treatment of Children Older Than 2 Years of Age With X-Linked Severe Combined Immunodeficiency",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "X-Linked Combined Immunodeficiency Diseases"
      ],
      "interventions": [
        {
          "name": "CD34+ HSCs transduced with the lentivirus vector, VSV-G pseudotyped CL20-4i-EF1α-hγc-OPT",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Palifermin",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "2 Years to 40 Years"
      },
      "enrollment_count": 13,
      "start_date": "2012-04",
      "completion_date": "2022-12",
      "has_results": false,
      "last_update_posted_date": "2019-12-04",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03315078"
    },
    {
      "nct_id": "NCT04996797",
      "title": "A Phase 2 Safety and Efficacy Study of Tulisokibart (MK-7240/PRA023) in Subjects With Moderately to Severely Active Ulcerative Colitis (MK-7240-005)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "Tulisokibart",
          "type": "DRUG"
        },
        {
          "name": "Companion Diagnostic (CDx) Testing",
          "type": "DEVICE"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Prometheus Biosciences, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 178,
      "start_date": "2021-07-14",
      "completion_date": "2025-07-14",
      "has_results": true,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 29,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Sun City, Arizona + 24 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04996797"
    },
    {
      "nct_id": "NCT00002120",
      "title": "Randomized Phase I Study of Trimetrexate Glucuronate (TMTX) With Leucovorin (LCV) Protection Plus Dapsone Versus Trimethoprim / Sulfamethoxazole (TMP/SMX) for Treatment of Moderately Severe Episodes of Pneumocystis Carinii Pneumonia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pneumonia, Pneumocystis Carinii",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Trimetrexate glucuronate",
          "type": "DRUG"
        },
        {
          "name": "Trimethoprim",
          "type": "DRUG"
        },
        {
          "name": "Sulfamethoxazole",
          "type": "DRUG"
        },
        {
          "name": "Dapsone",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin calcium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "U.S. Bioscience",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 20,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002120"
    },
    {
      "nct_id": "NCT00000703",
      "title": "Chemotherapy and Azidothymidine, With or Without Radiotherapy, for High Grade Lymphoma in AIDS-Risk Group Members",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphoma, Non-Hodgkin",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Bleomycin sulfate",
          "type": "DRUG"
        },
        {
          "name": "Vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Allopurinol",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "Zidovudine",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "19 Years to 69 Years"
      },
      "enrollment_count": 45,
      "start_date": null,
      "completion_date": "1990-03",
      "has_results": false,
      "last_update_posted_date": "2021-11-03",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000703"
    },
    {
      "nct_id": "NCT00006054",
      "title": "Allogeneic Bone Marrow Transplantation in Patients With Primary Immunodeficiencies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Immunologic Deficiency Syndromes",
        "Chediak-Higashi Syndrome",
        "Common Variable Immunodeficiency",
        "Graft Versus Host Disease",
        "X-Linked Lymphoproliferative Syndrome",
        "Familial Erythrophagocytic Lymphohistiocytosis",
        "Hemophagocytic Lymphohistiocytosis",
        "X-linked Agammaglobulinemia",
        "Wiskott-Aldrich Syndrome",
        "Chronic Granulomatous Disease",
        "X-linked Hyper IgM Syndrome",
        "Severe Combined Immunodeficiency",
        "Leukocyte Adhesion Deficiency Syndrome",
        "Virus-Associated Hemophagocytic Syndrome"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "DRUG"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "Allogeneic Bone Marrow Transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Fairview University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "Up to 35 Years"
      },
      "enrollment_count": null,
      "start_date": "2000-03",
      "completion_date": "2002-12",
      "has_results": false,
      "last_update_posted_date": "2009-10-15",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006054"
    },
    {
      "nct_id": "NCT01852071",
      "title": "Autologous CD34+ Hematopoietic Stem Cells Transduced ex Vivo With Elongation Factor 1 Alpha Shortened (EFS) Lentiviral Vector Encoding for the Human ADA Gene",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "ADA-SCID"
      ],
      "interventions": [
        {
          "name": "Infusion of autologous EFS-ADA LV CD34+ (OTL-101)",
          "type": "GENETIC"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "PEG-ADA ERT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Month to 17 Years"
      },
      "enrollment_count": 46,
      "start_date": "2013-08-02",
      "completion_date": "2018-08-27",
      "has_results": true,
      "last_update_posted_date": "2022-08-03",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Bethesda, Maryland",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01852071"
    },
    {
      "nct_id": "NCT06851767",
      "title": "Base-Edited Hematopoietic Stem/Progenitor Cell X-Linked Severe Combined Immunodeficiency Gene Therapy",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "X-linked Severe Combined Immunodeficiency",
        "X-SCID",
        "XSCID"
      ],
      "interventions": [
        {
          "name": "Plerixafor",
          "type": "GENETIC"
        },
        {
          "name": "Filgrastim",
          "type": "DRUG"
        },
        {
          "name": "Palifermin",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        },
        {
          "name": "Base-edited hematopoietic stem and progenitor cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "99 Years",
        "sex": "MALE",
        "summary": "3 Years to 99 Years · Male only"
      },
      "enrollment_count": 18,
      "start_date": "2025-05-09",
      "completion_date": "2034-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-10T02:46:37.404Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06851767"
    }
  ]
}