{
  "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": "2026-09-13T11:36:57.054Z",
  "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": "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": "2026-09-13T11:36:57.054Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00299689"
    },
    {
      "nct_id": "NCT00082758",
      "title": "hu14.18-Interleukin-2 Fusion Protein in Treating Young Patients With Recurrent or Refractory Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "hu14.18-Interleukin-2 fusion protein",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 39,
      "start_date": "2005-08",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2015-02-12",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 69,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 61 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00082758"
    },
    {
      "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": "2026-09-13T11:36:57.054Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00050999"
    },
    {
      "nct_id": "NCT00513188",
      "title": "Combination Chemotherapy and Denileukin Diftitox in Treating Patients With Newly Diagnosed T-Cell Non-Hodgkin Lymphoma",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "protein expression analysis",
          "type": "GENETIC"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "University of Miami",
      "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": 0,
      "start_date": "2007-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-12-15",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00513188"
    },
    {
      "nct_id": "NCT00211276",
      "title": "A Study of ONTAK in Patients With Relapsed or Refractory, B-Cell Non Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma, B-Cell"
      ],
      "interventions": [
        {
          "name": "ONTAK (denileukin diftitox)",
          "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": 50,
      "start_date": "2005-03",
      "completion_date": "2007-02",
      "has_results": false,
      "last_update_posted_date": "2012-03-14",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 12,
      "location_summary": "Beverly Hills, California • Fountain Valley, California • Los Angeles, California + 9 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00211276"
    },
    {
      "nct_id": "NCT00003615",
      "title": "Denileukin Diftitox in Treating Patients With Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "denileukin diftitox",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 77,
      "start_date": "1999-05-20",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2023-06-15",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 10,
      "location_summary": "Chicago, Illinois • Boston, Massachusetts • Las Vegas, Nevada + 7 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "Elizabeth",
          "state": "New Jersey"
        },
        {
          "city": "Flemington",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003615"
    },
    {
      "nct_id": "NCT01181258",
      "title": "Penostatin, Rituximab and Ontak and Allogeneic Natural Killer (NK) Cells for Refractory Lymphoid Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-Hodgkin Lymphoma",
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Rituximab",
          "type": "DRUG"
        },
        {
          "name": "Interleukin-2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Natural killer cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 16,
      "start_date": "2010-08",
      "completion_date": "2016-07",
      "has_results": true,
      "last_update_posted_date": "2018-02-06",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01181258"
    },
    {
      "nct_id": "NCT00055146",
      "title": "Study of ONTAK in Patients With B-Cell Chronic Lymphocytic Leukemia (CLL)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia, Lymphocytic, Chronic"
      ],
      "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": 41,
      "start_date": "2003-03",
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2009-04-17",
      "last_synced_at": "2026-09-13T11:36:57.054Z",
      "location_count": 5,
      "location_summary": "Fountain Valley, California • La Jolla, California • Chicago, Illinois + 2 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00055146"
    },
    {
      "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": "2026-09-13T11:36:57.054Z",
      "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": "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": "2026-09-13T11:36:57.054Z",
      "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"
    }
  ]
}