{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ONTAK&page=2",
    "query": {
      "intervention": "ONTAK",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ONTAK&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-20T02:40:36.530Z",
  "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": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01251952"
    },
    {
      "nct_id": "NCT00299689",
      "title": "Phase II Trial of Ontak With Metastatic Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Malignant Melanoma"
      ],
      "interventions": [
        {
          "name": "Denileukin diftitox",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "James Graham Brown Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2006-03",
      "completion_date": "2010-01",
      "has_results": true,
      "last_update_posted_date": "2014-09-05",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00299689"
    },
    {
      "nct_id": "NCT00026429",
      "title": "Denileukin Diftitox in Treating Patients With Non-Hodgkin's Lymphoma",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pharmatech Oncology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2001-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-12-18",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 6,
      "location_summary": "Pomona, California • Rancho Mirage, California • Saint Charles, Missouri + 3 more",
      "locations": [
        {
          "city": "Pomona",
          "state": "California"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        },
        {
          "city": "Saint Charles",
          "state": "Missouri"
        },
        {
          "city": "Lake Success",
          "state": "New York"
        },
        {
          "city": "Myrtle Beach",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00026429"
    },
    {
      "nct_id": "NCT00050999",
      "title": "Study of ONTAK (Denileukin Diftitox) in Cutaneous T-Cell Lymphoma (CTCL) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lymphoma, T-Cell, Cutaneous",
        "Mycosis Fungoides",
        "Sezary Syndrome"
      ],
      "interventions": [
        {
          "name": "ONTAK",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 195,
      "start_date": "1995-06",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2008-03-05",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00050999"
    },
    {
      "nct_id": "NCT00128622",
      "title": "Denileukin Diftitox Followed by Vaccine Therapy in Treating Patients With Metastatic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer",
        "Colorectal Cancer",
        "Lung Cancer",
        "Pancreatic Cancer",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        },
        {
          "name": "recombinant fowlpox-CEA(6D)/TRICOM vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "therapeutic autologous dendritic cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "H. Kim Lyerly",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2005-09",
      "completion_date": "2009-05",
      "has_results": false,
      "last_update_posted_date": "2012-11-12",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia • Durham, North Carolina",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00128622"
    },
    {
      "nct_id": "NCT00357448",
      "title": "Denileukin Diftitox Used in Treating Patients With Advanced Refractory Ovarian Cancer, Primary Peritoneal Carcinoma, or Epithelial Fallopian Tube Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Fallopian Tube Cancer",
        "Ovarian Clear Cell Cystadenocarcinoma",
        "Ovarian Endometrioid Adenocarcinoma",
        "Ovarian Mixed Epithelial Carcinoma",
        "Ovarian Mucinous Cystadenocarcinoma",
        "Ovarian Serous Cystadenocarcinoma",
        "Ovarian Undifferentiated Adenocarcinoma",
        "Peritoneal Cavity Cancer",
        "Recurrent Ovarian Epithelial Cancer",
        "Stage III Ovarian Epithelial Cancer",
        "Stage IV Ovarian Epithelial Cancer"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        },
        {
          "name": "intraperitoneal administration",
          "type": "PROCEDURE"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "enzyme-linked immunosorbent assay",
          "type": "OTHER"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 11,
      "start_date": "2005-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-05-14",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00357448"
    },
    {
      "nct_id": "NCT00801918",
      "title": "Denileukine Diftitox for Relapsed ALCL",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anaplastic Large-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Denileukin Diftitox",
          "type": "DRUG"
        },
        {
          "name": "Denileukin diftitox, ifosfamide, cyclophosphamide, etoposide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "2 Years to 24 Years"
      },
      "enrollment_count": 0,
      "start_date": "2008-12",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2013-05-15",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00801918"
    },
    {
      "nct_id": "NCT00211198",
      "title": "Study of ONTAK® to Treat Cutaneous T-Cell Lymphoma (CTCL)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lymphoma, T-Cell, Cutaneous"
      ],
      "interventions": [
        {
          "name": "ONTAK (denileukin difitox, DAB389IL-2)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eisai Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2001-05",
      "completion_date": "2006-01",
      "has_results": false,
      "last_update_posted_date": "2008-03-05",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 9,
      "location_summary": "Duarte, California • New Haven, Connecticut • Iowa City, Iowa + 6 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00211198"
    },
    {
      "nct_id": "NCT00138164",
      "title": "Denileukin Diftitox in Treating Patients With Relapsed or Refractory Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2004-12",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2013-05-30",
      "last_synced_at": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00138164"
    },
    {
      "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": "2026-09-20T02:40:36.530Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00326508"
    }
  ]
}