{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation",
    "query": {
      "condition": "Radiation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4925,
    "total_pages": 493,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-21T22:17:53.554Z",
  "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": "NCT02381561",
      "title": "Ropidoxuridine in Treating Patients With Advanced Gastrointestinal Cancer Undergoing Radiation Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Bile Duct Carcinoma",
        "Stage II Esophageal Cancer AJCC v7",
        "Stage II Pancreatic Cancer AJCC v6 and v7",
        "Stage IIA Esophageal Cancer AJCC v7",
        "Stage IIA Pancreatic Cancer AJCC v6 and v7",
        "Stage IIB Esophageal Cancer AJCC v7",
        "Stage IIB Pancreatic Cancer AJCC v6 and v7",
        "Stage III Colon Cancer AJCC v7",
        "Stage III Esophageal Cancer AJCC v7",
        "Stage III Gastric Cancer AJCC v7",
        "Stage III Liver Cancer",
        "Stage III Pancreatic Cancer AJCC v6 and v7",
        "Stage III Rectal Cancer AJCC v7",
        "Stage III Small Intestinal Cancer AJCC v7",
        "Stage IIIA Colon Cancer AJCC v7",
        "Stage IIIA Esophageal Cancer AJCC v7",
        "Stage IIIA Gastric Cancer AJCC v7",
        "Stage IIIA Rectal Cancer AJCC v7",
        "Stage IIIA Small Intestinal Cancer AJCC v7",
        "Stage IIIB Colon Cancer AJCC v7",
        "Stage IIIB Esophageal Cancer AJCC v7",
        "Stage IIIB Gastric Cancer AJCC v7",
        "Stage IIIB Rectal Cancer AJCC v7",
        "Stage IIIB Small Intestinal Cancer AJCC v7",
        "Stage IIIC Colon Cancer AJCC v7",
        "Stage IIIC Esophageal Cancer AJCC v7",
        "Stage IIIC Gastric Cancer AJCC v7",
        "Stage IIIC Rectal Cancer AJCC v7",
        "Stage IV Colon Cancer AJCC v7",
        "Stage IV Esophageal Cancer AJCC v7",
        "Stage IV Gastric Cancer AJCC v7",
        "Stage IV Liver Cancer",
        "Stage IV Pancreatic Cancer AJCC v6 and v7",
        "Stage IV Rectal Cancer AJCC v7",
        "Stage IV Small Intestinal Cancer AJCC v7",
        "Stage IVA Colon Cancer AJCC v7",
        "Stage IVA Liver Cancer",
        "Stage IVA Rectal Cancer AJCC v7",
        "Stage IVB Colon Cancer AJCC v7",
        "Stage IVB Liver Cancer",
        "Stage IVB Rectal Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Ropidoxuridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2016-02-01",
      "completion_date": "2027-03-14",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02381561"
    },
    {
      "nct_id": "NCT04486573",
      "title": "Cardiac Effects From Radiation Therapy by MRI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Radiation Treatment",
        "Cancer",
        "Cardiotoxicity"
      ],
      "interventions": [
        {
          "name": "Cardiac Magnetic Resonance Imaging",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 6,
      "start_date": "2020-07-15",
      "completion_date": "2023-09-14",
      "has_results": false,
      "last_update_posted_date": "2024-10-22",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04486573"
    },
    {
      "nct_id": "NCT00879073",
      "title": "Study Bendamustine Concurrent Whole Brain Radiation Brain Metastases From Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain Metastases"
      ],
      "interventions": [
        {
          "name": "Bendamustine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2009-04",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2012-12-18",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00879073"
    },
    {
      "nct_id": "NCT00681473",
      "title": "Late Effects of Proton Radiation Therapy in Patients With Low-Grade Glioma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Low Grade Gliomas"
      ],
      "interventions": [
        {
          "name": "Proton Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2007-07",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2017-03-07",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00681473"
    },
    {
      "nct_id": "NCT05488366",
      "title": "Immunotherapy Combined With Radiotherapy for Metastatic Sarcoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sarcoma, Soft Tissue"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2022-08-03",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05488366"
    },
    {
      "nct_id": "NCT01589939",
      "title": "Reduced Planning Target Volume (PTV) Margins for the Treatment of Prostate Cancer Using the Calypso 4D Localization System",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "U.S. Army Medical Research Acquisition Activity",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "40 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2009-03",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2016-05-17",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Tacoma, Washington",
      "locations": [
        {
          "city": "Tacoma",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01589939"
    },
    {
      "nct_id": "NCT02034812",
      "title": "Decision Impact Study to Measure the Influence of DECIPHER on Treatment Recommendations for Radiation Oncologists",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Decipher Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "GenomeDx Biosciences Corp",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 25,
      "start_date": "2013-07",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2016-02-29",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02034812"
    },
    {
      "nct_id": "NCT00004061",
      "title": "Biological Therapy in Treating Patients Undergoing Radiation Therapy, Chemotherapy, and Peripheral Stem Cell Transplantation for Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma",
        "Oral Complications"
      ],
      "interventions": [
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "palifermin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "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": 111,
      "start_date": "1999-05",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2013-06-26",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004061"
    },
    {
      "nct_id": "NCT00165139",
      "title": "Intensive Chemo-Radiotherapy With Peripheral Blood Progenitor Cell Rescue for Children With Advanced Neuroblastoma and Sarcomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroblastoma",
        "Ewings Sarcoma",
        "Non-rhabdomyosarcoma Soft Tissue Sarcoma"
      ],
      "interventions": [
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Adriamycin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide (VP-16)",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "G-CSF (granulocyte-colony stimulating factor)",
          "type": "DRUG"
        },
        {
          "name": "Mesna",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "Up to 19 Years"
      },
      "enrollment_count": 20,
      "start_date": "1996-01",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2009-11-02",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00165139"
    },
    {
      "nct_id": "NCT05353257",
      "title": "A Study to Evaluate the Efficacy and Safety of Serplulimab in Combination With Chemotherapy and Concurrent Radiotherapy in Patients With Limited-Stage Small Cell Lung Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Limited-Stage Small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "HLX10",
          "type": "DRUG"
        },
        {
          "name": "carboplatin/cisplatin-etoposide",
          "type": "DRUG"
        },
        {
          "name": "Thoracic radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Prophylactic Cranial Irradiation (PCI)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Shanghai Henlius Biotech",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 511,
      "start_date": "2022-05-17",
      "completion_date": "2028-05-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-05-21T22:17:53.554Z",
      "location_count": 31,
      "location_summary": "Arcadia, California • Los Alamitos, California • Los Angeles, California + 26 more",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Los Alamitos",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Redlands",
          "state": "California"
        },
        {
          "city": "Santa Rosa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05353257"
    }
  ]
}