{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Beam+Radiation+Therapy&page=2",
    "query": {
      "intervention": "Photon Beam Radiation Therapy",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 70,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Beam+Radiation+Therapy&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Beam+Radiation+Therapy&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T07:22:32.801Z",
  "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": "NCT02453737",
      "title": "A Study of Accelerated 3 Fraction Photon,Proton or Brachytherapy for Early Invasive and Noninvasive Breast Ca",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Brachytherapy APBI",
          "type": "RADIATION"
        },
        {
          "name": "3D-CRT (photon) APBI",
          "type": "RADIATION"
        },
        {
          "name": "Proton APBI",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "50 Years and older · Female only"
      },
      "enrollment_count": 170,
      "start_date": "2015-06-16",
      "completion_date": "2022-09-21",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 3,
      "location_summary": "Phoenix, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02453737"
    },
    {
      "nct_id": "NCT03340402",
      "title": "Preoperative Accelerated Partial Breast Irradiation for Triple Negative Breast Cancer Using Proton Beam Scanning",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Accelerated Partial Breast Irradiation",
          "type": "RADIATION"
        },
        {
          "name": "AlignRT",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DEVICE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2017-12-07",
      "completion_date": "2019-10-23",
      "has_results": false,
      "last_update_posted_date": "2019-11-14",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03340402"
    },
    {
      "nct_id": "NCT02130427",
      "title": "A Volume, Motion, and Anatomically Adaptive Approach to Photon and Proton Beam Radiotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Biopsy Proven Non Small Cell Lung Cancer",
        "Head and Neck Cancer",
        "Gastrointestinal Cancer",
        "Colorectal Cancer",
        "Rectal Cancers",
        "Gynecological Malignancy Requiring Definitive Radiotherapy"
      ],
      "interventions": [
        {
          "name": "CT scan",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 74,
      "start_date": "2010-09",
      "completion_date": "2022-04",
      "has_results": true,
      "last_update_posted_date": "2022-07-22",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02130427"
    },
    {
      "nct_id": "NCT01073267",
      "title": "Study of Total Skin Electron Beam Therapy (TSEBT) in Stage IB-IIIA Mycosis Fungoides",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "TSEBT",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "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": 4,
      "start_date": "2010-02",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2015-12-31",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01073267"
    },
    {
      "nct_id": "NCT04288375",
      "title": "Dose Reduction of Postoperative Radiation for Soft Tissue Sarcoma of the Arms and Legs",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Soft Tissue Sarcoma"
      ],
      "interventions": [
        {
          "name": "Intensity-modulated radiation therapy (IMRT)",
          "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": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2020-02-26",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "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/NCT04288375"
    },
    {
      "nct_id": "NCT00797446",
      "title": "Photon/Proton Radiation Therapy for Oropharyngeal Cancers",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Oropharyngeal Cancers"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2007-09",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2017-02-07",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00797446"
    },
    {
      "nct_id": "NCT04968990",
      "title": "Treatment of Newly Diagnosed Patient's With Wilm's Tumor Requiring Abdominal Radiation Delivered With Proton Beam Irradiation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Wilms Tumor"
      ],
      "interventions": [
        {
          "name": "Proton Beam Radiation (PBRT)",
          "type": "DEVICE"
        },
        {
          "name": "DD-4A Chemotherapy Regimen",
          "type": "DRUG"
        },
        {
          "name": "Complete Surgical Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Surgical Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Partial Nephrectomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 260,
      "start_date": "2021-08-19",
      "completion_date": "2036-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04968990"
    },
    {
      "nct_id": "NCT04190446",
      "title": "A Study To Evaluate Hypofractionated Proton Therapy Or IMRT For Recurrent, Oligometastatic Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Prostate Adenocarcinoma",
        "Oligometastatic Prostate Carcinoma",
        "Prostate Adenocarcinoma",
        "Recurrent Prostate Carcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Proton Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "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": 84,
      "start_date": "2020-01-06",
      "completion_date": "2028-11-22",
      "has_results": false,
      "last_update_posted_date": "2026-06-09",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04190446"
    },
    {
      "nct_id": "NCT03801876",
      "title": "Comparing Proton Therapy to Photon Radiation Therapy for Esophageal Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Clinical Stage I Esophageal Adenocarcinoma AJCC v8",
        "Clinical Stage I Esophageal Squamous Cell Carcinoma AJCC v8",
        "Clinical Stage I Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Clinical Stage II Esophageal Adenocarcinoma AJCC v8",
        "Clinical Stage II Esophageal Squamous Cell Carcinoma AJCC v8",
        "Clinical Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Clinical Stage III Esophageal Adenocarcinoma AJCC v8",
        "Clinical Stage III Esophageal Squamous Cell Carcinoma AJCC v8",
        "Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Clinical Stage IVA Esophageal Adenocarcinoma AJCC v8",
        "Clinical Stage IVA Esophageal Squamous Cell Carcinoma AJCC v8",
        "Clinical Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Thoracic Esophagus Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Esophagectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Proton Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2019-06-26",
      "completion_date": "2036-11-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 96,
      "location_summary": "Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 77 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Deerfield Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03801876"
    },
    {
      "nct_id": "NCT03288818",
      "title": "Low Dose Total Skin Electron Beam Radiation Therapy and Mechlorethamine Hydrochloride Gel in Treating Patients With Mycosis Fungoides",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Mycosis Fungoides"
      ],
      "interventions": [
        {
          "name": "Mechlorethamine Hydrochloride Gel",
          "type": "DRUG"
        },
        {
          "name": "Total Skin Electron Beam Radiation Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University",
      "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": "2018-08",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2025-04-29",
      "last_synced_at": "2026-10-06T07:22:32.801Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03288818"
    }
  ]
}