{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Denileukin+diftitox",
    "query": {
      "intervention": "Denileukin diftitox"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 45,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Denileukin+diftitox&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T14:01:55.087Z",
  "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": "NCT01251952",
      "title": "Dose Escalation Trial of Denileukin Diftitox (Ontak) Post Autologous Transplantation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Denileukin Diftitox (Ontak)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Barbara Ann Karmanos Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 2,
      "start_date": "2010-11",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2017-06-20",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01251952"
    },
    {
      "nct_id": "NCT00228358",
      "title": "Cyclophosphamide or Denileukin Diftitox Followed By Expanding a Patient's Own T Cells in the Laboratory in Treating Patients With HER-2/Neu Overexpressing Metastatic Breast Cancer, Ovarian Cancer, or Non-Small Cell Lung Cancer Previously Treated With HER-2/Neu Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HER2-positive Breast Cancer",
        "Recurrent Breast Cancer",
        "Recurrent Non-small Cell Lung Cancer",
        "Recurrent Ovarian Epithelial Cancer",
        "Recurrent Ovarian Germ Cell Tumor",
        "Stage IV Breast Cancer",
        "Stage IV Non-small Cell Lung Cancer",
        "Stage IV Ovarian Epithelial Cancer",
        "Stage IV Ovarian Germ Cell Tumor"
      ],
      "interventions": [
        {
          "name": "ex vivo-expanded HER2-specific T cells",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "immunoenzyme technique",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2003-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-11-11",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00228358"
    },
    {
      "nct_id": "NCT00337987",
      "title": "A Pilot Study to Determine the Safety of the Combination of Ontak in Combination With CHOP in Peripheral T-Cell Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Peripheral T-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Ontak",
          "type": "DRUG"
        },
        {
          "name": "CHOP (cyclophosphamide (C), adriamycin (H), vincristine (O), and prednisone (P)) chemotherapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 49,
      "start_date": "2005-11",
      "completion_date": "2008-01",
      "has_results": true,
      "last_update_posted_date": "2015-02-27",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00337987"
    },
    {
      "nct_id": "NCT00726037",
      "title": "A Pilot Study, Evaluating the Efficacy of Regulatory T-cell Suppression by Ontak in Metastatic Pancreatic Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Ontak",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loyola University",
      "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": "2008-10",
      "completion_date": "2012-01",
      "has_results": true,
      "last_update_posted_date": "2016-09-29",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00726037"
    },
    {
      "nct_id": "NCT02694770",
      "title": "A Study Evaluating the Efficacy and Safety of Neihulizumab vs \"Conventional Treatment\" to Treat Sr-aGvHD",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Steroid-refractory aGvHD Subsequent to Allogeneic Hematopoietic Cell Transplantation"
      ],
      "interventions": [
        {
          "name": "Neihulizumab Treatment",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Conventional Treatment",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "AbGenomics B.V Taiwan Branch",
      "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": "2016-07",
      "completion_date": "2018-02",
      "has_results": false,
      "last_update_posted_date": "2016-04-25",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 2,
      "location_summary": "Houston, Texas • Seattle, Washington",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02694770"
    },
    {
      "nct_id": "NCT00117845",
      "title": "Phase II Study of the Efficacy and Toxicity of Ontak(Registered Trademark) (Denileukin Diftitox) in the Therapy of Adult T-Cell Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia, Adult T-Cell"
      ],
      "interventions": [
        {
          "name": "Denileukin diftitox (Ontak)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2005-07-11",
      "completion_date": "2013-06-30",
      "has_results": true,
      "last_update_posted_date": "2019-11-19",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00117845"
    },
    {
      "nct_id": "NCT00326508",
      "title": "Combination Daclizumab/Denileukin Diftitox to Treat Uveitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-infectious Intermediate and Posterior Uveitis"
      ],
      "interventions": [
        {
          "name": "Daclizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 5,
      "start_date": "2006-05-11",
      "completion_date": "2006-12-20",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00326508"
    },
    {
      "nct_id": "NCT00425672",
      "title": "ONTAK® in Treating Patients With Advanced Breast Cancer That Did Not Respond to Previous Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Male Breast Cancer",
        "Recurrent Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "ONTAK",
          "type": "BIOLOGICAL"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "enzyme-linked immunosorbent assay",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "protein expression analysis",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "GENETIC"
      ],
      "sponsor": "University of Washington",
      "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": "2005-09",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2018-12-05",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00425672"
    },
    {
      "nct_id": "NCT00224874",
      "title": "Treatment for Acute Graft-Versus-Host Disease (BMT CTN 0302)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Graft vs Host Disease",
        "Immune System Disorders"
      ],
      "interventions": [
        {
          "name": "Etanercept",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        },
        {
          "name": "Denileukin Diftitox",
          "type": "DRUG"
        },
        {
          "name": "Pentostatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 180,
      "start_date": "2005-09",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2021-11-01",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 19,
      "location_summary": "Duarte, California • San Diego, California • Stanford, California + 16 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00224874"
    },
    {
      "nct_id": "NCT00082940",
      "title": "Denileukin Diftitox in Treating Patients With Fludarabine-Refractory B-Cell Chronic Lymphocytic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": null,
      "start_date": "2002-08",
      "completion_date": "2005-06",
      "has_results": false,
      "last_update_posted_date": "2017-01-19",
      "last_synced_at": "2026-09-04T14:01:55.087Z",
      "location_count": 11,
      "location_summary": "Orange, California • Chicago, Illinois • Vincennes, Indiana + 8 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Vincennes",
          "state": "Indiana"
        },
        {
          "city": "Houma",
          "state": "Louisiana"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00082940"
    }
  ]
}