{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Gene-modified+CD34%2B+cells",
    "query": {
      "intervention": "Gene-modified CD34+ cells"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 24,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Gene-modified+CD34%2B+cells&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T03:36:55.883Z",
  "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": "NCT02500849",
      "title": "Safety Study of Zinc Finger Nuclease CCR5-modified Hematopoietic Stem/Progenitor Cells in HIV-1 Infected Patients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "SB-728mR-HSPC Infusion 3 days following busulfan conditioning",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 12,
      "start_date": "2016-03-10",
      "completion_date": "2026-08-24",
      "has_results": false,
      "last_update_posted_date": "2025-10-09",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 5,
      "location_summary": "Duarte, California • Los Angeles, California • San Francisco, California + 1 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Norwalk",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02500849"
    },
    {
      "nct_id": "NCT03812263",
      "title": "A Clinical Trial to Evaluate the Safety and Efficacy of RP-L201 in Subjects With Leukocyte Adhesion Deficiency-I",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Leukocyte Adhesion Defect - Type I"
      ],
      "interventions": [
        {
          "name": "RP-L201",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Rocket Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Months and older"
      },
      "enrollment_count": 9,
      "start_date": "2019-08-30",
      "completion_date": "2023-09-12",
      "has_results": false,
      "last_update_posted_date": "2023-11-15",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03812263"
    },
    {
      "nct_id": "NCT03897361",
      "title": "Stem Cell Gene Therapy for Cystinosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Lysosomal Storage Diseases",
        "Cystinosis"
      ],
      "interventions": [
        {
          "name": "CTNS-RD-04 (including CTNS-RD-04-LB manufactured with LentiBOOST)",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2019-07-08",
      "completion_date": "2024-09-18",
      "has_results": true,
      "last_update_posted_date": "2026-08-06",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03897361"
    },
    {
      "nct_id": "NCT01875237",
      "title": "Donor Lymphocyte Infusion (DLI) of T-cells Genetically Modified With iCasp9 Suicide Gene",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Myeloma",
        "Myeloproliferative Diseases"
      ],
      "interventions": [
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        },
        {
          "name": "Stem Cell infusion",
          "type": "PROCEDURE"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Mini Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "G-CSF",
          "type": "DRUG"
        },
        {
          "name": "Donor Lymphocyte Infusion (DLI)",
          "type": "PROCEDURE"
        },
        {
          "name": "AP1903",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 3,
      "start_date": "2013-12-27",
      "completion_date": "2017-03-07",
      "has_results": true,
      "last_update_posted_date": "2019-07-16",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01875237"
    },
    {
      "nct_id": "NCT03655678",
      "title": "A Safety and Efficacy Study Evaluating CTX001 in Participants With Transfusion-Dependent β-Thalassemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Beta-Thalassemia",
        "Thalassemia",
        "Genetic Diseases, Inborn",
        "Hematologic Diseases",
        "Hemoglobinopathies"
      ],
      "interventions": [
        {
          "name": "CTX001",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vertex Pharmaceuticals Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "12 Years to 35 Years"
      },
      "enrollment_count": 59,
      "start_date": "2018-09-14",
      "completion_date": "2025-11-13",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 6,
      "location_summary": "Palo Alto, California • Chicago, Illinois • New York, New York + 2 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03655678"
    },
    {
      "nct_id": "NCT05477563",
      "title": "Evaluation of Efficacy and Safety of a Single Dose of CTX001 in Participants With Transfusion-Dependent β-Thalassemia and Severe Sickle Cell Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Beta-Thalassemia",
        "Thalassemia",
        "Hematologic Diseases",
        "Genetic Diseases, Inborn",
        "Hemoglobinopathies",
        "Sickle Cell Disease",
        "Sickle Cell Anemia"
      ],
      "interventions": [
        {
          "name": "CTX001",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vertex Pharmaceuticals Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "12 Years to 35 Years"
      },
      "enrollment_count": 26,
      "start_date": "2022-08-02",
      "completion_date": "2027-06-09",
      "has_results": false,
      "last_update_posted_date": "2026-03-23",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 3,
      "location_summary": "New York, New York • Charlotte, North Carolina • Nashville, Tennessee",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05477563"
    },
    {
      "nct_id": "NCT06506461",
      "title": "Gene Editing For Sickle Cell Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Plerixafor",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        },
        {
          "name": "Gene-modified CD34+ cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Motixafortide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "18 Years to 24 Years"
      },
      "enrollment_count": 25,
      "start_date": "2025-03-21",
      "completion_date": "2032-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06506461"
    },
    {
      "nct_id": "NCT04105166",
      "title": "Gene Therapy for Pyruvate Kinase Deficiency (PKD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pyruvate Kinase Deficiency"
      ],
      "interventions": [
        {
          "name": "RP-L301",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Rocket Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "8 Years to 50 Years"
      },
      "enrollment_count": 4,
      "start_date": "2020-07-06",
      "completion_date": "2025-06-09",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04105166"
    },
    {
      "nct_id": "NCT05329649",
      "title": "Evaluation of Safety and Efficacy of CTX001 in Pediatric Participants With Severe Sickle Cell Disease (SCD)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "Hydroxyurea Failure",
        "Hydroxyurea Intolerance",
        "Hemoglobinopathies",
        "Hematological Diseases"
      ],
      "interventions": [
        {
          "name": "CTX001",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vertex Pharmaceuticals Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "2 Years to 11 Years"
      },
      "enrollment_count": 13,
      "start_date": "2022-05-02",
      "completion_date": "2027-06-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 4,
      "location_summary": "Charlotte, North Carolina • Philadelphia, Pennsylvania • Memphis, Tennessee + 1 more",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05329649"
    },
    {
      "nct_id": "NCT02378922",
      "title": "Gene-Modified HIV-Protected Stem Cell Transplant in Treating Patients With HIV-Associated Lymphoma",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "AIDS-Related Hodgkin Lymphoma",
        "AIDS-Related Non-Hodgkin Lymphoma",
        "HIV Infection",
        "Recurrent Hodgkin Lymphoma",
        "Recurrent Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Gene-Modified HIV-Protected Hematopoietic Stem Cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Transplant Conditioning",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "66 Years",
        "sex": "ALL",
        "summary": "18 Years to 66 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-06-22",
      "completion_date": "2019-06-15",
      "has_results": false,
      "last_update_posted_date": "2018-12-27",
      "last_synced_at": "2026-09-24T03:36:55.883Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02378922"
    }
  ]
}