{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=radiation+therapy+%28radiotherapy%29&page=2",
    "query": {
      "intervention": "radiation therapy (radiotherapy)",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 7030,
    "total_pages": 703,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=radiation+therapy+%28radiotherapy%29&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=radiation+therapy+%28radiotherapy%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T08:45:42.644Z",
  "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": "NCT00904189",
      "title": "Measurement of the Radiation Dose Cuticles Using Electron Paramagnetic Resonance (EPR)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Irradiation; Adverse Effect"
      ],
      "interventions": [
        {
          "name": "Standard of care given for treatment of cancer",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2007-11",
      "completion_date": "2008-01",
      "has_results": true,
      "last_update_posted_date": "2015-10-19",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00904189"
    },
    {
      "nct_id": "NCT01088789",
      "title": "Boost GVAX Pancreas Vaccine With or Without CY in Patients With Pancreas Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide Pill",
          "type": "DRUG"
        },
        {
          "name": "GVAX Pancreas Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2010-04-20",
      "completion_date": "2026-08",
      "has_results": true,
      "last_update_posted_date": "2025-08-26",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01088789"
    },
    {
      "nct_id": "NCT07265674",
      "title": "A Study to Select a Dose Regimen (Part A) and to Investigate Overall Survival (Part B) With Nanvuranlat Compared With Physician's Best Choice in Participants Aged 18 Years or Older With Biliary Tract Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Advanced Biliary Tract Cancer",
        "Biliary Tract Cancer (BTC)"
      ],
      "interventions": [
        {
          "name": "Nanvuranlat",
          "type": "DRUG"
        },
        {
          "name": "Physician's Best Choice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "J-Pharma Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 480,
      "start_date": "2026-05-11",
      "completion_date": "2027-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 18,
      "location_summary": "Duarte, California • Orange, California • Santa Monica, California + 15 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Zion",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07265674"
    },
    {
      "nct_id": "NCT01436240",
      "title": "Spanish Translation of the Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "questionnaire administration followed by cognitive interviews",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 112,
      "start_date": "2011-09",
      "completion_date": "2017-05",
      "has_results": false,
      "last_update_posted_date": "2017-05-23",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Miami, Florida • Chicago, Illinois + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01436240"
    },
    {
      "nct_id": "NCT03463889",
      "title": "Gallium-68 Prostate Specific Membrane Antigen PET in Diagnosing Patients With Thyroid Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Thyroid Gland Carcinoma"
      ],
      "interventions": [
        {
          "name": "Gallium Ga 68-labeled PSMA-11",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography (PET)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Francisco",
      "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": "2018-03-19",
      "completion_date": "2020-10-31",
      "has_results": true,
      "last_update_posted_date": "2021-06-29",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03463889"
    },
    {
      "nct_id": "NCT04684368",
      "title": "A Study of a New Way to Treat Children and Young Adults With a Brain Tumor Called NGGCT",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Central Nervous System Nongerminomatous Germ Cell Tumor",
        "Choriocarcinoma",
        "Embryonal Carcinoma",
        "Immature Teratoma",
        "Malignant Teratoma",
        "Mixed Germ Cell Tumor",
        "Pineal Region Germ Cell Tumor",
        "Pineal Region Immature Teratoma",
        "Pineal Region Yolk Sac Tumor",
        "Suprasellar Germ Cell Tumor"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Mesna",
          "type": "DRUG"
        },
        {
          "name": "Pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Second-Look Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "3 Years to 29 Years"
      },
      "enrollment_count": 160,
      "start_date": "2021-07-13",
      "completion_date": "2029-12-21",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 152,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 120 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/NCT04684368"
    },
    {
      "nct_id": "NCT02422550",
      "title": "Imaging Acquisition and Analysis Methods for Optimization of MRI Radiation Oncology Simulation and Response Assessment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Radiation Therapy"
      ],
      "interventions": [
        {
          "name": "MRI or CT",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 937,
      "start_date": "2015-04-09",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02422550"
    },
    {
      "nct_id": "NCT00779818",
      "title": "Electrical Acupuncture and Laser Therapy for Low Back Pain",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Electrical acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Laser",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Logan College of Chiropractic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "20 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2008-10",
      "completion_date": "2009-01",
      "has_results": false,
      "last_update_posted_date": "2008-10-24",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 1,
      "location_summary": "Chesterfield, Missouri",
      "locations": [
        {
          "city": "Chesterfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00779818"
    },
    {
      "nct_id": "NCT02716974",
      "title": "A Study of Definitive Therapy to Treat Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Leuprolide Acetate",
          "type": "DRUG"
        },
        {
          "name": "Bicalutamide",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Prostatectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Radiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "18 Years to 80 Years · Male only"
      },
      "enrollment_count": 26,
      "start_date": "2016-06",
      "completion_date": "2022-04",
      "has_results": true,
      "last_update_posted_date": "2022-08-04",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 3,
      "location_summary": "Washington D.C., District of Columbia • Baltimore, Maryland",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02716974"
    },
    {
      "nct_id": "NCT00934518",
      "title": "Image Guided Intensity Modulated Reirradiation (IG-IMRT) With Cetuximab for Locoregionally Confined Recurrent Head and Neck Squamous Cell Carcinoma",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Squamous Cell Cancer of the Head and Neck"
      ],
      "interventions": [
        {
          "name": "Radiation",
          "type": "RADIATION"
        },
        {
          "name": "Cetuximab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2009-07",
      "completion_date": "2011-07",
      "has_results": false,
      "last_update_posted_date": "2019-02-12",
      "last_synced_at": "2026-10-07T08:45:42.644Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00934518"
    }
  ]
}