{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Neuroblastoma%2C+Recurrent%2C+Refractory&page=3",
    "query": {
      "condition": "Neuroblastoma, Recurrent, Refractory",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "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=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Neuroblastoma%2C+Recurrent%2C+Refractory&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T06:58:31.122Z",
  "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": "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": "2026-10-06T06:58:31.122Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617929"
    },
    {
      "nct_id": "NCT00293319",
      "title": "131 I-MIBG in Treating Patients With Refractory or Relapsed Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "iobenguane I 131",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 164,
      "start_date": "2005-04",
      "completion_date": "2006-03",
      "has_results": false,
      "last_update_posted_date": "2014-08-18",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 3,
      "location_summary": "San Francisco, California • Ann Arbor, Michigan • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00293319"
    },
    {
      "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": "2026-10-06T06:58:31.122Z",
      "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": "NCT04500548",
      "title": "Testing the Combination of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) in Children, Adolescent, and Young Adult Patients With Relapsed/Refractory Cancers That Have an Increased Number of Genetic Changes, The 3CI Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Constitutional Mismatch Repair Deficiency Syndrome",
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Lynch Syndrome",
        "Recurrent Lymphoma",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Neuroblastoma",
        "Recurrent Primary Central Nervous System Neoplasm",
        "Refractory Lymphoma",
        "Refractory Malignant Solid Neoplasm",
        "Refractory Neuroblastoma",
        "Refractory Primary Central Nervous System Neoplasm",
        "Xeroderma Pigmentosum"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "12 Months to 25 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-05-11",
      "completion_date": "2022-06-21",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 7,
      "location_summary": "Palo Alto, California • Aurora, Colorado • St Louis, Missouri + 4 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04500548"
    },
    {
      "nct_id": "NCT04211675",
      "title": "NK Cells Infusions With Irinotecan, Temozolomide, and Dinutuximab",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Relapsed Neuroblastoma",
        "Refractory Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Natural Killer Cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Dinutuximab",
          "type": "DRUG"
        },
        {
          "name": "Sargramostim",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Nationwide Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "Up to 29 Years"
      },
      "enrollment_count": 31,
      "start_date": "2022-09-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-16",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04211675"
    },
    {
      "nct_id": "NCT04284774",
      "title": "Tipifarnib for the Treatment of Advanced Solid Tumors, Lymphoma, or Histiocytic Disorders With HRAS Gene Alterations, a Pediatric MATCH Treatment Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Malignant Solid Neoplasm",
        "Recurrent Adrenal Gland Pheochromocytoma",
        "Recurrent Ectomesenchymoma",
        "Recurrent Ependymoma",
        "Recurrent Ewing Sarcoma",
        "Recurrent Hepatoblastoma",
        "Recurrent Kidney Wilms Tumor",
        "Recurrent Langerhans Cell Histiocytosis",
        "Recurrent Malignant Germ Cell Tumor",
        "Recurrent Malignant Glioma",
        "Recurrent Medulloblastoma",
        "Recurrent Melanoma",
        "Recurrent Neuroblastoma",
        "Recurrent Non-Hodgkin Lymphoma",
        "Recurrent Osteosarcoma",
        "Recurrent Peripheral Primitive Neuroectodermal Tumor",
        "Recurrent Rhabdoid Tumor",
        "Recurrent Rhabdoid Tumor of the Kidney",
        "Recurrent Rhabdomyosarcoma",
        "Recurrent Soft Tissue Sarcoma",
        "Recurrent Thyroid Gland Carcinoma",
        "Recurrent WHO Grade 2 Glioma",
        "Refractory Adrenal Gland Pheochromocytoma",
        "Refractory Ependymoma",
        "Refractory Ewing Sarcoma",
        "Refractory Hepatoblastoma",
        "Refractory Langerhans Cell Histiocytosis",
        "Refractory Malignant Germ Cell Tumor",
        "Refractory Malignant Glioma",
        "Refractory Medulloblastoma",
        "Refractory Melanoma",
        "Refractory Neuroblastoma",
        "Refractory Non-Hodgkin Lymphoma",
        "Refractory Osteosarcoma",
        "Refractory Peripheral Primitive Neuroectodermal Tumor",
        "Refractory Rhabdoid Tumor",
        "Refractory Rhabdoid Tumor of the Kidney",
        "Refractory Rhabdomyosarcoma",
        "Refractory Soft Tissue Sarcoma",
        "Refractory Thyroid Gland Carcinoma",
        "Refractory WHO Grade 2 Glioma"
      ],
      "interventions": [
        {
          "name": "Tipifarnib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "12 Months to 21 Years"
      },
      "enrollment_count": 5,
      "start_date": "2020-10-13",
      "completion_date": "2027-09-30",
      "has_results": true,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 171,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 129 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04284774"
    },
    {
      "nct_id": "NCT00003513",
      "title": "Antineoplaston Therapy in Treating Patients With Metastatic, Recurrent, or Refractory Neuroblastoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Antineoplaston therapy (Atengenal + Astugenal)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Burzynski Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "6 Months to 99 Years"
      },
      "enrollment_count": 3,
      "start_date": "1996-12-16",
      "completion_date": "1999-03-29",
      "has_results": false,
      "last_update_posted_date": "2017-09-28",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003513"
    },
    {
      "nct_id": "NCT02139397",
      "title": "Study of Difluoromethylornithine (DFMO) in Combination With Bortezomib for Relapsed or Refractory Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma Recurrent"
      ],
      "interventions": [
        {
          "name": "DFMO",
          "type": "DRUG"
        },
        {
          "name": "Bortezomib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Giselle Sholler",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 16,
      "start_date": "2014-06-06",
      "completion_date": "2024-01-19",
      "has_results": true,
      "last_update_posted_date": "2024-08-06",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 6,
      "location_summary": "Little Rock, Arkansas • Hartford, Connecticut • Orlando, Florida + 3 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02139397"
    },
    {
      "nct_id": "NCT00450827",
      "title": "Iodine I 131 Monoclonal Antibody 3F8 and Bevacizumab in Treating Patients With Relapsed or Refractory Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "autologous hematopoietic stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "iodine I 131 monoclonal antibody 3F8",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 25,
      "start_date": "2006-08",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2015-09-28",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00450827"
    },
    {
      "nct_id": "NCT01163383",
      "title": "131-I-MIBG Therapy for Refractory Neuroblastoma, Expanded Access Protocol",
      "overall_status": "AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Neuroblastoma",
        "Childhood Metastatic Pheochromocytoma"
      ],
      "interventions": [
        {
          "name": "131 I-Metaiodobenzylguanidine (131 I-MIBG)",
          "type": "DRUG"
        },
        {
          "name": "131 I-MIBG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "John Maris",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-06T06:58:31.122Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01163383"
    }
  ]
}