{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Natural+killer+cells",
    "query": {
      "intervention": "Natural killer cells"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 264,
    "total_pages": 27,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Natural+killer+cells&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T20:40:27.825Z",
  "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": "NCT03152526",
      "title": "CD3/CD19 Depleted or CD3 Depleted/CD56 Selected Haploidentical Donor Natural Killer (NK) Cell Based Therapy for AML Patients Not in CR",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Myelogenous Leukemia"
      ],
      "interventions": [
        {
          "name": "Interventions",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Miltenyi Biotec B.V. & Co. KG",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 1,
      "start_date": "2017-10-18",
      "completion_date": "2018-03-21",
      "has_results": true,
      "last_update_posted_date": "2020-07-09",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Minneapolis, Minnesota • Columbus, Ohio",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03152526"
    },
    {
      "nct_id": "NCT00789776",
      "title": "Fludarabine Phosphate, Cyclophosphamide, Total-Body Irradiation, and Donor Bone Marrow Transplant Followed by Donor Natural Killer Cell Therapy, Mycophenolate Mofetil, and Tacrolimus in Treating Patients With Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Acute Myeloid Leukemia",
        "Aggressive Non-Hodgkin Lymphoma",
        "Diffuse Large B-Cell Lymphoma",
        "Previously Treated Myelodysplastic Syndrome",
        "Recurrent Chronic Lymphocytic Leukemia",
        "Recurrent Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Recurrent Indolent Adult Non-Hodgkin Lymphoma",
        "Recurrent Mantle Cell Lymphoma",
        "Recurrent Plasma Cell Myeloma",
        "Recurrent Small Lymphocytic Lymphoma",
        "Refractory Chronic Lymphocytic Leukemia",
        "Refractory Hodgkin Lymphoma",
        "Refractory Plasma Cell Myeloma",
        "Refractory Small Lymphocytic Lymphoma",
        "Waldenstrom Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "Allogeneic Bone Marrow Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        },
        {
          "name": "Natural Killer Cell Therapy",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Total-Body Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER",
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 41,
      "start_date": "2008-10-13",
      "completion_date": "2017-05",
      "has_results": true,
      "last_update_posted_date": "2020-01-31",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 3,
      "location_summary": "Seattle, Washington • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00789776"
    },
    {
      "nct_id": "NCT05470140",
      "title": "A Phase 1 Study of WU-NK-101 in Patients With Relapsed or Refractory (R/R) Acute Myeloid Leukemia (AML)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "WU-NK-101",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Allotera Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2023-07-01",
      "completion_date": "2024-10-08",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 6,
      "location_summary": "Duarte, California • Palo Alto, California • Louisville, Kentucky + 3 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05470140"
    },
    {
      "nct_id": "NCT04848064",
      "title": "Third-Party Natural Killer Cells and Mogamulizumab for the Treatment of Relapsed or Refractory Cutaneous T-cell Lymphomas or Adult T-Cell Leukemia/Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent Adult T-Cell Leukemia/Lymphoma",
        "Recurrent Primary Cutaneous T-Cell Non-Hodgkin Lymphoma",
        "Refractory Adult T-Cell Leukemia/Lymphoma",
        "Refractory Primary Cutaneous T-Cell Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Mogamulizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Natural Killer Cell Therapy",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "John Reneau",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-05-06",
      "completion_date": "2027-01-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-10",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04848064"
    },
    {
      "nct_id": "NCT06138587",
      "title": "Preemptive CIML NK Cell Therapy After Hematopoietic Stem Cell Transplantation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Myeloid Leukemia",
        "Leukemia",
        "Leukemia, Myeloid",
        "Myelodysplastic Syndromes",
        "Myeloproliferative Neoplasm",
        "Myeloproliferative Disorders"
      ],
      "interventions": [
        {
          "name": "Cytokine Induced Memory-like Natural Killer Cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Interleukin-2",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2024-01-24",
      "completion_date": "2027-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06138587"
    },
    {
      "nct_id": "NCT04955262",
      "title": "A CD8 Positron Emission Tomography With Computed Tomography (PET/CT) Study Using ⁸⁹Zr Df-IAB22M2C in Patients With Metastatic Melanoma Receiving Bempegaldesleukin (NKTR-214) and Nivolumab",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Metastatic Melanoma"
      ],
      "interventions": [
        {
          "name": "Bempegaldesleukin (NKTR-214)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "⁸⁹Zr-Df-IAB22M2C",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Nektar Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-08",
      "completion_date": "2022-01",
      "has_results": false,
      "last_update_posted_date": "2021-07-08",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 3,
      "location_summary": "Duarte, California • Portland, Oregon • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04955262"
    },
    {
      "nct_id": "NCT04491461",
      "title": "Acute Effects of an Herbal Tea on Immune Surveillance and Activation.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Active Immune Response"
      ],
      "interventions": [
        {
          "name": "Herbal tea blend",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Warm water",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Natural Immune Systems Inc",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 12,
      "start_date": "2020-07-27",
      "completion_date": "2021-12-19",
      "has_results": false,
      "last_update_posted_date": "2022-09-27",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 1,
      "location_summary": "Klamath Falls, Oregon",
      "locations": [
        {
          "city": "Klamath Falls",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04491461"
    },
    {
      "nct_id": "NCT00005813",
      "title": "Bispecific Antibody Plus White Blood Cells in Treating Patients With Recurrent or Refractory Glioblastoma Multiforme",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "bispecific antibody MDX447",
          "type": "BIOLOGICAL"
        },
        {
          "name": "lymphokine-activated killer cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "1997-03",
      "completion_date": "2003-01",
      "has_results": false,
      "last_update_posted_date": "2011-10-27",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005813"
    },
    {
      "nct_id": "NCT02271711",
      "title": "Expanded Natural Killer Cell Infusion in Treating Younger Patients With Recurrent/Refractory Brain Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent Childhood Medulloblastoma",
        "Recurrent Ependymoma",
        "Recurrent Medulloblastoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Natural Killer Cell Therapy",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 12,
      "start_date": "2015-03-17",
      "completion_date": "2020-08-28",
      "has_results": false,
      "last_update_posted_date": "2020-09-02",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02271711"
    },
    {
      "nct_id": "NCT05990920",
      "title": "Study of Allogeneic Blood-derived Natural Killer Cells to Evaluate Safety and Tolerability in Cancer Refractory to Conventional Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pathologically Confirmed Cancer Refractory to Conventional Therapy",
        "Refractory Cancer",
        "Metastatic Cancer",
        "Recurrent Cancer",
        "Solid Tumor, Adult",
        "Solid Tumor",
        "Advanced Cancer",
        "Advanced Solid Tumor"
      ],
      "interventions": [
        {
          "name": "SNK02",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "NKGen Biotech, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2023-08-23",
      "completion_date": "2024-04-12",
      "has_results": false,
      "last_update_posted_date": "2024-11-20",
      "last_synced_at": "2026-09-10T20:40:27.825Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Santa Monica, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05990920"
    }
  ]
}