{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Relapsed+Ewing+Sarcoma&page=2",
    "query": {
      "condition": "Relapsed Ewing Sarcoma",
      "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?condition=Relapsed+Ewing+Sarcoma&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-25T22:44:03.138Z",
  "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": "NCT05734066",
      "title": "Study of Lurbinectedin Monotherapy in Pediatric and Young Adult Participants With Relapsed/Refractory Ewing Sarcoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Refractory Ewing Sarcoma",
        "Relapsed Ewing Sarcoma",
        "Ewing Sarcoma"
      ],
      "interventions": [
        {
          "name": "Lurbinectedin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jazz Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "2 Years to 30 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-05-23",
      "completion_date": "2028-04-20",
      "has_results": false,
      "last_update_posted_date": "2026-02-03",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • Palo Alto, California • Washington D.C., District of Columbia + 11 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05734066"
    },
    {
      "nct_id": "NCT05440786",
      "title": "CAMPFIRE: A Study of Abemaciclib (LY2835219) in Participants With Ewing's Sarcoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sarcoma, Ewing",
        "Neoplasm Metastasis"
      ],
      "interventions": [
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "1 Year to 39 Years"
      },
      "enrollment_count": 46,
      "start_date": "2022-09-20",
      "completion_date": "2026-12",
      "has_results": true,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 5,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Indianapolis, Indiana + 2 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05440786"
    },
    {
      "nct_id": "NCT03507491",
      "title": "Nab-paclitaxel in Combination with Gemcitabine for Pediatric Relapsed and Refractory Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Nab-paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "6 Months to 30 Years"
      },
      "enrollment_count": 24,
      "start_date": "2018-08-27",
      "completion_date": "2024-02-02",
      "has_results": false,
      "last_update_posted_date": "2024-10-04",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • St. Petersburg, Florida • Atlanta, Georgia + 1 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03507491"
    },
    {
      "nct_id": "NCT00084695",
      "title": "Umbilical Cord Blood for Stem Cell Transplantation in Treating Young Patients With Malignant or Nonmalignant Diseases",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Childhood Langerhans Cell Histiocytosis",
        "Fanconi Anemia",
        "Leukemia",
        "Lymphoma",
        "Myelodysplastic Syndromes",
        "Neuroblastoma",
        "Sarcoma",
        "Unspecified Childhood Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "fludarabine phosphate",
          "type": "DRUG"
        },
        {
          "name": "melphalan",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 25,
      "start_date": "2003-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-01-10",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00084695"
    },
    {
      "nct_id": "NCT03213704",
      "title": "Larotrectinib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With NTRK Fusions (A Pediatric MATCH Treatment Trial)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Malignant Solid Neoplasm",
        "Recurrent Ependymoma",
        "Recurrent Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Recurrent Glioma",
        "Recurrent Hepatoblastoma",
        "Recurrent Kidney Wilms Tumor",
        "Recurrent Langerhans Cell Histiocytosis",
        "Recurrent Malignant Germ Cell Tumor",
        "Recurrent Malignant Glioma",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Medulloblastoma",
        "Recurrent Neuroblastoma",
        "Recurrent Non-Hodgkin Lymphoma",
        "Recurrent Osteosarcoma",
        "Recurrent Rhabdoid Tumor",
        "Recurrent Rhabdomyosarcoma",
        "Recurrent Soft Tissue Sarcoma",
        "Refractory Ependymoma",
        "Refractory Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Refractory Glioma",
        "Refractory Hepatoblastoma",
        "Refractory Langerhans Cell Histiocytosis",
        "Refractory Malignant Germ Cell Tumor",
        "Refractory Malignant Glioma",
        "Refractory Malignant Solid Neoplasm",
        "Refractory Medulloblastoma",
        "Refractory Neuroblastoma",
        "Refractory Non-Hodgkin Lymphoma",
        "Refractory Osteosarcoma",
        "Refractory Primary Central Nervous System Neoplasm",
        "Refractory Rhabdoid Tumor",
        "Refractory Rhabdomyosarcoma",
        "Refractory Soft Tissue Sarcoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Larotrectinib Sulfate",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Radionuclide Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "X-Ray Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "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": 9,
      "start_date": "2017-08-23",
      "completion_date": "2026-10-08",
      "has_results": true,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 122,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 95 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03213704"
    },
    {
      "nct_id": "NCT04661852",
      "title": "Cabozantinib With Topotecan-Cyclophosphamide",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Relapsed Ewing Sarcoma",
        "Refractory Ewing Sarcoma",
        "Relapsed Osteosarcoma",
        "Refractory Osteosarcoma"
      ],
      "interventions": [
        {
          "name": "Cabozantinib",
          "type": "DRUG"
        },
        {
          "name": "Topotecan",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Myeloid growth factor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "6 Years to 30 Years"
      },
      "enrollment_count": 12,
      "start_date": "2020-12-23",
      "completion_date": "2022-10-24",
      "has_results": false,
      "last_update_posted_date": "2023-02-15",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04661852"
    },
    {
      "nct_id": "NCT03458728",
      "title": "Safety, Tolerability, Efficacy and Pharmacokinetics of Copanlisib in Pediatric Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Relapsed or Refractory Solid Tumors or Lymphoma in Children",
        "Neuroblastoma",
        "Osteosarcoma",
        "Rhabdomyosarcoma",
        "Ewing Sarcoma"
      ],
      "interventions": [
        {
          "name": "Copanlisib (BAY806946)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Months to 21 Years"
      },
      "enrollment_count": 31,
      "start_date": "2018-04-30",
      "completion_date": "2023-02-01",
      "has_results": true,
      "last_update_posted_date": "2023-12-04",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • Orange, California • Aurora, Colorado + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03458728"
    },
    {
      "nct_id": "NCT04890093",
      "title": "Vincristine and Temozolomide in Combination With PEN-866 for Adolescents and Young Adults With Relapsed or Refractory Solid Tumors",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sarcoma, Ewing",
        "Rhabdomyosarcoma"
      ],
      "interventions": [
        {
          "name": "PEN-866",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "12 Years to 39 Years"
      },
      "enrollment_count": 64,
      "start_date": "2024-10-31",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia • Bethesda, Maryland",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04890093"
    },
    {
      "nct_id": "NCT03233204",
      "title": "Olaparib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With Defects in DNA Damage Repair Genes (A Pediatric MATCH Treatment Trial)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Malignant Solid Neoplasm",
        "Ann Arbor Stage III Childhood Non-Hodgkin Lymphoma",
        "Ann Arbor Stage IV Childhood Non-Hodgkin Lymphoma",
        "Low Grade Glioma",
        "Malignant Glioma",
        "Recurrent Childhood Central Nervous System Neoplasm",
        "Recurrent Childhood Ependymoma",
        "Recurrent Childhood Malignant Germ Cell Tumor",
        "Recurrent Childhood Non-Hodgkin Lymphoma",
        "Recurrent Childhood Rhabdomyosarcoma",
        "Recurrent Childhood Soft Tissue Sarcoma",
        "Recurrent Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Recurrent Glioma",
        "Recurrent Hepatoblastoma",
        "Recurrent Langerhans Cell Histiocytosis",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Medulloblastoma",
        "Recurrent Neuroblastoma",
        "Recurrent Osteosarcoma",
        "Refractory Childhood Malignant Germ Cell Tumor",
        "Refractory Ependymoma",
        "Refractory Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Refractory Glioma",
        "Refractory Hepatoblastoma",
        "Refractory Langerhans Cell Histiocytosis",
        "Refractory Malignant Glioma",
        "Refractory Malignant Solid Neoplasm",
        "Refractory Medulloblastoma",
        "Refractory Neuroblastoma",
        "Refractory Non-Hodgkin Lymphoma",
        "Refractory Osteosarcoma",
        "Refractory Primary Central Nervous System Neoplasm",
        "Refractory Rhabdomyosarcoma",
        "Refractory Soft Tissue Sarcoma",
        "Rhabdoid Tumor",
        "Wilms Tumor"
      ],
      "interventions": [
        {
          "name": "Olaparib",
          "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": 6,
      "start_date": "2017-09-14",
      "completion_date": "2024-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-12-11",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 111,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 88 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03233204"
    },
    {
      "nct_id": "NCT02390843",
      "title": "Simvastatin With Topotecan and Cyclophosphamide in Relapsed and/or Refractory Pediatric Solid and CNS Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Retinoblastoma",
        "Clear Cell Sarcoma",
        "Renal Cell Carcinoma",
        "Rhabdoid Tumor",
        "Wilms Tumor",
        "Hepatoblastoma",
        "Neuroblastoma",
        "Germ Cell Tumors",
        "Ewings Sarcoma",
        "Non-rhabdomyosarcoma Soft Tissue Sarcoma",
        "Osteosarcoma",
        "Rhabdomyosarcoma"
      ],
      "interventions": [
        {
          "name": "Simvastatin",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Topotecan",
          "type": "DRUG"
        },
        {
          "name": "Myeloid growth factor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "1 Year to 29 Years"
      },
      "enrollment_count": 13,
      "start_date": "2015-02",
      "completion_date": "2019-09-22",
      "has_results": false,
      "last_update_posted_date": "2020-04-03",
      "last_synced_at": "2026-06-25T22:44:03.138Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02390843"
    }
  ]
}