{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam+radiation+%28dose+level+1%29",
    "query": {
      "intervention": "External beam radiation (dose level 1)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 169,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam+radiation+%28dose+level+1%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T06:01:09.750Z",
  "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": "NCT00655876",
      "title": "Paclitaxel, Cisplatin, and Radiation Therapy With or Without Cetuximab in Treating Patients With Locally Advanced Esophageal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "cetuximab",
          "type": "DRUG"
        },
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Radiation Therapy Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 344,
      "start_date": "2008-06",
      "completion_date": "2022-05-20",
      "has_results": true,
      "last_update_posted_date": "2022-06-14",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 173,
      "location_summary": "Tucson, Arizona • Auburn, California • Cameron Park, California + 140 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Auburn",
          "state": "California"
        },
        {
          "city": "Cameron Park",
          "state": "California"
        },
        {
          "city": "Carmichael",
          "state": "California"
        },
        {
          "city": "Chico",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00655876"
    },
    {
      "nct_id": "NCT05568550",
      "title": "Pembro With Radiation With or Without Olaparib",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Androgen Deprivation Therapy",
          "type": "DRUG"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Zin W Myint",
      "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": 64,
      "start_date": "2023-07-27",
      "completion_date": "2029-07-02",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 2,
      "location_summary": "Lexington, Kentucky • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05568550"
    },
    {
      "nct_id": "NCT02515110",
      "title": "Hypofractionated Regional Nodal Irradiation Clinical Trial for Women With Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Node-positive Breast Cancer",
        "Breast Adenocarcinoma",
        "Invasive Breast Carcinoma",
        "Lobular Breast Carcinoma In Situ"
      ],
      "interventions": [
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 137,
      "start_date": "2015-08-04",
      "completion_date": "2028-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 2,
      "location_summary": "Richmond, Virginia • South Hill, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        },
        {
          "city": "South Hill",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02515110"
    },
    {
      "nct_id": "NCT00006359",
      "title": "Androgen Suppression Plus Radiation Therapy in Treating Patients With Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "LHRH agonist",
          "type": "DRUG"
        },
        {
          "name": "antiandrogen",
          "type": "DRUG"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "Brachytherapy boost",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "MALE",
        "summary": "18 Years to 120 Years · Male only"
      },
      "enrollment_count": 63,
      "start_date": "2000-09",
      "completion_date": "2012-03",
      "has_results": false,
      "last_update_posted_date": "2016-07-18",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 26,
      "location_summary": "Lewes, Delaware • Newark, Delaware • Wilmington, Delaware + 18 more",
      "locations": [
        {
          "city": "Lewes",
          "state": "Delaware"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Elkton MD",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006359"
    },
    {
      "nct_id": "NCT03553602",
      "title": "HDR Brachytherapy, EBRT and STAD for the Treatment of Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer - Recurrent"
      ],
      "interventions": [
        {
          "name": "HDR Brachytherapy + EBRT + STAD",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loyola University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "MALE",
        "summary": "18 Years to 99 Years · Male only"
      },
      "enrollment_count": 3,
      "start_date": "2017-12-20",
      "completion_date": "2024-07-26",
      "has_results": true,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03553602"
    },
    {
      "nct_id": "NCT04105543",
      "title": "CLR 131 Combined With Radiation for Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "CLR 131",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": "2019-12-20",
      "completion_date": "2024-02-01",
      "has_results": true,
      "last_update_posted_date": "2025-09-02",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 2,
      "location_summary": "Johnson Creek, Wisconsin • Madison, Wisconsin",
      "locations": [
        {
          "city": "Johnson Creek",
          "state": "Wisconsin"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04105543"
    },
    {
      "nct_id": "NCT03253744",
      "title": "Prostate SBRT for Locally Recurrent Prostate Cancer After Prior Radiotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prostate Cancer",
        "Prostatic Neoplasm"
      ],
      "interventions": [
        {
          "name": "18F-DCFPyL",
          "type": "DRUG"
        },
        {
          "name": "Tumor Irradiation",
          "type": "RADIATION"
        },
        {
          "name": "Prostate + tumor irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 17,
      "start_date": "2018-07-05",
      "completion_date": "2025-01-30",
      "has_results": true,
      "last_update_posted_date": "2025-10-08",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03253744"
    },
    {
      "nct_id": "NCT01378481",
      "title": "High-Dose Vorinostat and Fractionated Stereotactic Body Radiation Therapy in Treating Patients With Recurrent Glioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Adult Anaplastic Astrocytoma",
        "Adult Anaplastic Oligodendroglioma",
        "Adult Giant Cell Glioblastoma",
        "Adult Glioblastoma",
        "Adult Gliosarcoma",
        "Adult Mixed Glioma",
        "Recurrent Adult Brain Neoplasm"
      ],
      "interventions": [
        {
          "name": "Vorinostat",
          "type": "DRUG"
        },
        {
          "name": "Stereotactic Radiosurgery",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "OTHER",
        "PROCEDURE"
      ],
      "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": 30,
      "start_date": "2012-06",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2014-12-23",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01378481"
    },
    {
      "nct_id": "NCT01203839",
      "title": "Partial Breast Irradiation (PBI) Using 40 Gy for Select Patients With Early Invasive or Noninvasive Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "multiple beams utilizing either intensity-modulated or 3D-conformal techniques",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2010-09",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2025-10-06",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 8,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 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/NCT01203839"
    },
    {
      "nct_id": "NCT01591577",
      "title": "Lapatinib With Temozolomide and Regional Radiation Therapy for Patients With Newly-Diagnosed Glioblastoma Multiforme",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Newly Diagnosed Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "Lapatinib/Temozolomide/radiation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Jonsson Comprehensive 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": 50,
      "start_date": "2012-12-07",
      "completion_date": "2024-05-07",
      "has_results": false,
      "last_update_posted_date": "2024-05-16",
      "last_synced_at": "2026-10-01T06:01:09.750Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01591577"
    }
  ]
}