{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Neuroblastoma%2C+Recurrent%2C+Refractory&page=4",
    "query": {
      "condition": "Neuroblastoma, Recurrent, Refractory",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 196,
    "total_pages": 20,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Neuroblastoma%2C+Recurrent%2C+Refractory&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Neuroblastoma%2C+Recurrent%2C+Refractory&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T08:59:27.637Z",
  "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": "NCT04530487",
      "title": "Donor Stem Cell Transplant After Chemotherapy for the Treatment of Recurrent or Refractory High-Risk Solid Tumors in Pediatric and Adolescent-Young Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Desmoplastic Small Round Cell Tumor",
        "Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Recurrent Desmoplastic Small Round Cell Tumor",
        "Recurrent Malignant Peripheral Nerve Sheath Tumor",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Neuroblastoma",
        "Recurrent Rhabdomyosarcoma",
        "Refractory Desmoplastic Small Round Cell Tumor",
        "Refractory Malignant Peripheral Nerve Sheath Tumor",
        "Refractory Malignant Solid Neoplasm",
        "Refractory Neuroblastoma",
        "Refractory Rhabdomyosarcoma"
      ],
      "interventions": [
        {
          "name": "Allogeneic Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Lapine T-Lymphocyte Immune Globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "Up to 25 Years"
      },
      "enrollment_count": 1,
      "start_date": "2020-08-19",
      "completion_date": "2024-08-26",
      "has_results": true,
      "last_update_posted_date": "2025-06-29",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04530487"
    },
    {
      "nct_id": "NCT00045006",
      "title": "Suberoylanilide Hydroxamic Acid in Treating Patients With Advanced Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "vorinostat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering 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": null,
      "start_date": "2001-07",
      "completion_date": "2008-07",
      "has_results": false,
      "last_update_posted_date": "2013-05-30",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00045006"
    },
    {
      "nct_id": "NCT00486564",
      "title": "Safety Study of Nifurtimox for Relapsed or Refractory Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Nifurtimox",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 20,
      "start_date": "2006-11",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2009-10-23",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 2,
      "location_summary": "St Louis, Missouri • Burlington, Vermont",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00486564"
    },
    {
      "nct_id": "NCT00049023",
      "title": "Radiolabeled Octreotide in Treating Children With Advanced or Refractory Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors",
        "Gastrointestinal Carcinoid Tumor",
        "Islet Cell Tumor",
        "Neuroblastoma",
        "Pheochromocytoma",
        "Sarcoma",
        "Unspecified Childhood Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "90Y-DOTA-tyr3-OCTREOTIDE",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "O'Dorisio, M S",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "2 Years to 25 Years"
      },
      "enrollment_count": 27,
      "start_date": "2002-01",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2016-06-21",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00049023"
    },
    {
      "nct_id": "NCT05421897",
      "title": "Rapid Administration Pilot for Infusing Dinutuximab",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Dinutuximab with Chemotherapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-11-29",
      "completion_date": "2029-11",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Atlanta, Georgia + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05421897"
    },
    {
      "nct_id": "NCT00617929",
      "title": "Antithymocyte Globulin, Clofarabine, and Rituximab in Treating Patients After an Unsuccessful Stem Cell Transplant",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "clofarabine",
          "type": "DRUG"
        },
        {
          "name": "stem cell transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "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": 12,
      "start_date": "2008-01",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-12-28",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617929"
    },
    {
      "nct_id": "NCT01077440",
      "title": "Presence of Donor-Derived DNA in Semen Samples From Cancer Survivors Who Underwent Donor Stem Cell Transplant",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Survivor",
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Neoplasms",
        "Neuroblastoma",
        "Testicular Germ Cell Tumor"
      ],
      "interventions": [
        {
          "name": "DNA analysis",
          "type": "GENETIC"
        },
        {
          "name": "polymerase chain reaction",
          "type": "GENETIC"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 24,
      "start_date": "2010-02",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2014-12-10",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01077440"
    },
    {
      "nct_id": "NCT07027748",
      "title": "Feasibility Study of Prolonged Administration of Naxitamab, Irinotecan, and Temozolomide for Patients With Relapsed or Refractory Neuroblastoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neuroblastoma",
        "Neuroblastoma Recurrent",
        "Relapsed Neuroblastoma",
        "Refractory Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Naxitamab",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Sargramostim granulocyte-macrophage colony stimulating factor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Steven DuBois, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "1 Year to 30 Years"
      },
      "enrollment_count": 18,
      "start_date": "2025-06-27",
      "completion_date": "2027-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07027748"
    },
    {
      "nct_id": "NCT01853345",
      "title": "iCAT for Recurrent/Refractory/HR Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric Solid Tumor",
        "Sarcoma",
        "Neuroblastoma",
        "Wilms Tumor"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 101,
      "start_date": "2012-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-02-10",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 5,
      "location_summary": "San Francisco, California • Washington D.C., District of Columbia • Boston, Massachusetts + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01853345"
    },
    {
      "nct_id": "NCT01048892",
      "title": "Seneca Valley Virus-001 and Cyclophosphamide in Treating Young Patients With Relapsed or Refractory Neuroblastoma, Rhabdomyosarcoma, or Rare Tumors With Neuroendocrine Features",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Adrenocortical Carcinoma",
        "Gastrointestinal Carcinoid Tumor",
        "Kidney Cancer",
        "Neuroblastoma",
        "Retinoblastoma",
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "Seneca Valley virus-001",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "3 Years to 21 Years"
      },
      "enrollment_count": 22,
      "start_date": "2009-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-01-30",
      "last_synced_at": "2026-10-04T08:59:27.637Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Orange, California • San Francisco, California + 15 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01048892"
    }
  ]
}