{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam",
    "query": {
      "intervention": "External beam"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 516,
    "total_pages": 52,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T21:11:32.781Z",
  "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": "NCT03874559",
      "title": "Exosomes in Rectal Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rectal Cancer"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Kansas 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": 30,
      "start_date": "2018-02-13",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03874559"
    },
    {
      "nct_id": "NCT02648997",
      "title": "An Open-Label Phase II Study of Nivolumab or Nivolumab/Ipilimumab in Adult Participants With Progessive/ Recurrent Meningioma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Meningiomas"
      ],
      "interventions": [
        {
          "name": "Nivolumab - 240 mg",
          "type": "DRUG"
        },
        {
          "name": "Ipilimumab - 1 mg/kg",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab - 480 mg",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab - 3 mg/kg",
          "type": "DRUG"
        },
        {
          "name": "External Beam RT",
          "type": "RADIATION"
        },
        {
          "name": "Nivolumab - 1 mg/kg",
          "type": "DRUG"
        },
        {
          "name": "Ipilimumab - 3 mg/kg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2016-03",
      "completion_date": "2026-10-01",
      "has_results": true,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02648997"
    },
    {
      "nct_id": "NCT01622868",
      "title": "Whole-Brain Radiation Therapy or Stereotactic Radiosurgery With or Without Lapatinib Ditosylate in Treating Patients With Brain Metastasis From HER2-Positive Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HER2-Positive Breast Carcinoma",
        "Invasive Breast Carcinoma",
        "Metastatic Malignant Neoplasm in the Brain",
        "Recurrent Breast Carcinoma",
        "Stage IV Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Lapatinib Ditosylate",
          "type": "DRUG"
        },
        {
          "name": "Stereotactic Radiosurgery",
          "type": "RADIATION"
        },
        {
          "name": "Whole-Brain Radiotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "RADIATION"
      ],
      "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": 143,
      "start_date": "2012-12-06",
      "completion_date": "2022-05-20",
      "has_results": true,
      "last_update_posted_date": "2023-10-17",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 292,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 210 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01622868"
    },
    {
      "nct_id": "NCT00557492",
      "title": "Efficacy of Neoadjuvant Chemoradiation for Potentially Resectable Pancreas Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Avastin (bevacizumab)",
          "type": "DRUG"
        },
        {
          "name": "Gemzar (Gemcitabine)",
          "type": "DRUG"
        },
        {
          "name": "external beam radiotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Amer Zureikat",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 59,
      "start_date": "2006-12",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2018-09-25",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00557492"
    },
    {
      "nct_id": "NCT04634877",
      "title": "Study of Pembrolizumab (MK-3475) in Combination With Adjuvant Chemotherapy With or Without Radiotherapy in Participants With Newly Diagnosed Endometrial Cancer After Surgery With Curative Intent (MK-3475-B21 / KEYNOTE-B21 / ENGOT-en11 / GOG-3053)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometrial Neoplasms"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Placebo for pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "External Beam Radiotherapy (EBRT)",
          "type": "RADIATION"
        },
        {
          "name": "Cisplatin (as radiosensitizer)",
          "type": "DRUG"
        },
        {
          "name": "Brachytherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 990,
      "start_date": "2021-01-10",
      "completion_date": "2026-09-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-24",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 26 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04634877"
    },
    {
      "nct_id": "NCT03460067",
      "title": "Omission of Radiation in Patients With Her-2 Positive Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HER2-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Omission of Radiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Kansas Medical Center",
      "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": 12,
      "start_date": "2018-02-23",
      "completion_date": "2027-07-16",
      "has_results": false,
      "last_update_posted_date": "2025-03-27",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03460067"
    },
    {
      "nct_id": "NCT07195591",
      "title": "Beginning Radiation Immediately With GammaTile at GBM Excision Versus Standard of Care",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Glioblastoma"
      ],
      "interventions": [
        {
          "name": "GammaTile®",
          "type": "DEVICE"
        },
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "GT Medical Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 766,
      "start_date": "2025-12-10",
      "completion_date": "2031-12",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 7,
      "location_summary": "Scottsdale, Arizona • Baltimore, Maryland • Neptune City, New Jersey + 4 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Neptune City",
          "state": "New Jersey"
        },
        {
          "city": "Valhalla",
          "state": "New York"
        },
        {
          "city": "Greenville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07195591"
    },
    {
      "nct_id": "NCT01266642",
      "title": "Hypofractionated Radiation Therapy or Standard Radiation Therapy in Treating Patients With Ductal Breast Carcinoma In Situ or Early Invasive Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ductal Breast Carcinoma In Situ",
        "Invasive Breast Carcinoma",
        "Stage I Breast Cancer AJCC v6",
        "Stage IA Breast Cancer AJCC v7",
        "Stage IB Breast Cancer AJCC v7",
        "Stage II Breast Cancer AJCC v6 and v7",
        "Stage IIA Breast Cancer AJCC v6 and v7",
        "Stage IIB Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Hypofractionated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Whole Breast Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "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": 301,
      "start_date": "2011-02-08",
      "completion_date": "2040-11-30",
      "has_results": true,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 7,
      "location_summary": "Gilbert, Arizona • Orlando, Florida • Conroe, Texas + 3 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Conroe",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01266642"
    },
    {
      "nct_id": "NCT00490490",
      "title": "Study of Bexxar <Tositumomab> Combined With External Beam Radiation Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma, Non-Hodgkin"
      ],
      "interventions": [
        {
          "name": "Bexxar (tositumomab)",
          "type": "DRUG"
        },
        {
          "name": "External beam radiotherapy (XRT)",
          "type": "PROCEDURE"
        },
        {
          "name": "Potassium Iodide (KI)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2007-01",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2017-03-29",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00490490"
    },
    {
      "nct_id": "NCT02494700",
      "title": "Ultra Low Dose Orbital Radiation Therapy in Treating Patients With Stage I-IV Indolent B-cell Lymphoma or Mantle Cell Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ann Arbor Stage I B-Cell Non-Hodgkin Lymphoma",
        "Ann Arbor Stage I Grade 1 Follicular Lymphoma",
        "Ann Arbor Stage I Grade 2 Follicular Lymphoma",
        "Ann Arbor Stage I Indolent Adult Non-Hodgkin Lymphoma",
        "Ann Arbor Stage I Mantle Cell Lymphoma",
        "Ann Arbor Stage II B-Cell Non-Hodgkin Lymphoma",
        "Ann Arbor Stage II Grade 1 Follicular Lymphoma",
        "Ann Arbor Stage II Grade 2 Follicular Lymphoma",
        "Ann Arbor Stage II Indolent Adult Non-Hodgkin Lymphoma",
        "Ann Arbor Stage II Mantle Cell Lymphoma",
        "Ann Arbor Stage III B-Cell Non-Hodgkin Lymphoma",
        "Ann Arbor Stage III Grade 1 Follicular Lymphoma",
        "Ann Arbor Stage III Grade 2 Follicular Lymphoma",
        "Ann Arbor Stage III Indolent Adult Non-Hodgkin Lymphoma",
        "Ann Arbor Stage III Mantle Cell Lymphoma",
        "Ann Arbor Stage IV B-Cell Non-Hodgkin Lymphoma",
        "Ann Arbor Stage IV Grade 1 Follicular Lymphoma",
        "Ann Arbor Stage IV Grade 2 Follicular Lymphoma",
        "Ann Arbor Stage IV Indolent Adult Non-Hodgkin Lymphoma",
        "Ann Arbor Stage IV Mantle Cell Lymphoma",
        "Ocular Adnexal Lymphoma",
        "Ocular Adnexal Mucosa-Associated Lymphoid Tissue Lymphoma",
        "Orbit Lymphoma"
      ],
      "interventions": [
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Orbital Radiation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson 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": "2015-07-06",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-09-02T21:11:32.781Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02494700"
    }
  ]
}