{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Radiation+Therapy&page=3",
    "query": {
      "intervention": "Photon Radiation Therapy",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 248,
    "total_pages": 25,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Radiation+Therapy&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photon+Radiation+Therapy&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T09:19:55.302Z",
  "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": "NCT03403049",
      "title": "Carbon Ion Radiation Therapy for Locally Advanced Pancreatic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pancreatic Cancer",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Carbon Ion",
          "type": "RADIATION"
        },
        {
          "name": "Gemcitabine + Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine + Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine + Erlotinib",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Photon",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 14,
      "start_date": "2016-04-01",
      "completion_date": "2019-07-09",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03403049"
    },
    {
      "nct_id": "NCT07221825",
      "title": "Low-Count Quantitative SPECT for Men Treated With Radium-223",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer",
        "Cancer of the Prostate"
      ],
      "interventions": [
        {
          "name": "Low-count quantitative single-photon emission computed tomography imaging",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 38,
      "start_date": "2026-09-01",
      "completion_date": "2028-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07221825"
    },
    {
      "nct_id": "NCT05095376",
      "title": "Testing the Addition of the Chemotherapy Drug Lomustine (Gleostine) to the Usual Treatment (Temozolomide and Radiation Therapy) for Newly Diagnosed MGMT Methylated Glioblastoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Glioblastoma",
        "Gliosarcoma"
      ],
      "interventions": [
        {
          "name": "Lomustine",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Photon Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 265,
      "start_date": "2022-03-28",
      "completion_date": "2031-02-12",
      "has_results": false,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 418,
      "location_summary": "Fairbanks, Alaska • Fayetteville, Arkansas • Little Rock, Arkansas + 304 more",
      "locations": [
        {
          "city": "Fairbanks",
          "state": "Alaska"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05095376"
    },
    {
      "nct_id": "NCT00685763",
      "title": "Proton Therapy for Unresectable Cancer (CA) of Pancreas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Proton radiation and chemotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Florida",
      "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": 13,
      "start_date": "2008-03",
      "completion_date": "2017-06-29",
      "has_results": true,
      "last_update_posted_date": "2017-08-24",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00685763"
    },
    {
      "nct_id": "NCT01034514",
      "title": "4D-CT-based Ventilation Imaging for Adaptive Functional Guidance in Radiotherapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Real-time Position Management system",
          "type": "DEVICE"
        },
        {
          "name": "Discovery ST multislice PET/CT scanner",
          "type": "DEVICE"
        },
        {
          "name": "Infinia Hawkeye SPECT/CT gamma camera",
          "type": "DEVICE"
        },
        {
          "name": "Pinnacle3 treatment planning system",
          "type": "DEVICE"
        },
        {
          "name": "SKYLight nuclear camera",
          "type": "DEVICE"
        },
        {
          "name": "DTPA",
          "type": "DRUG"
        },
        {
          "name": "TECHNETIUM TC 99M MAA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Billy W. Loo Jr.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2009-12",
      "completion_date": "2014-06-24",
      "has_results": false,
      "last_update_posted_date": "2017-05-08",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01034514"
    },
    {
      "nct_id": "NCT03134742",
      "title": "Radiation Effects on Bone",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Soft Tissue Sarcoma Adult"
      ],
      "interventions": [
        {
          "name": "Control Group",
          "type": "OTHER"
        },
        {
          "name": "CT Scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "DEXA Scans",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT and DEXA Scans",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "State University of New York - Upstate Medical University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 50,
      "start_date": "2017-03-13",
      "completion_date": "2025-04-13",
      "has_results": false,
      "last_update_posted_date": "2023-11-21",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03134742"
    },
    {
      "nct_id": "NCT02923570",
      "title": "Study of Proton Versus Photon Beam Radiotherapy in the Treatment of Head and Neck Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Photon intensity modulated radiation therapy (IMRT)",
          "type": "RADIATION"
        },
        {
          "name": "Proton beam radiotherapy (PBRT)",
          "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": 108,
      "start_date": "2016-10-03",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2025-11-05",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 9,
      "location_summary": "Miami, Florida • Rochester, Minnesota • Basking Ridge, New Jersey + 6 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02923570"
    },
    {
      "nct_id": "NCT03536182",
      "title": "Trial of Carbon Ion Versus Photon Radiotherapy for Locally Advanced, Unresectable Pancreatic Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Locally Advanced Pancreatic Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Carbon Ion Radiation Therapy (CIRT)",
          "type": "RADIATION"
        },
        {
          "name": "Intensity Modulated Radiation Therapy (IMRT)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-05-29",
      "completion_date": "2023-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-05-26",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03536182"
    },
    {
      "nct_id": "NCT01494155",
      "title": "Short Course Radiation Therapy With Proton or Photon Beam Capecitabine and Hydroxychloroquine for Resectable Pancreatic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Proton or Photon Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "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": 50,
      "start_date": "2011-12-27",
      "completion_date": "2018-09-16",
      "has_results": true,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01494155"
    },
    {
      "nct_id": "NCT06432036",
      "title": "Yttrium-90 (Y90) Radioembolization for the Treatment of Early Stage Renal Cell Carcinoma, The RENEGADE Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Stage I Renal Cell Cancer",
        "Stage II Renal Cell Cancer"
      ],
      "interventions": [
        {
          "name": "Angiogram",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Radioembolization",
          "type": "RADIATION"
        },
        {
          "name": "Single Photon Emission Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        },
        {
          "name": "Yttrium Y 90 Glass Microspheres",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION",
        "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": 25,
      "start_date": "2024-12-26",
      "completion_date": "2030-03",
      "has_results": false,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-10-02T09:19:55.302Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Aurora, Colorado",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06432036"
    }
  ]
}