{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton+Radiation",
    "query": {
      "intervention": "Proton Radiation"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 398,
    "total_pages": 40,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton+Radiation&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T16:45:32.629Z",
  "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": "NCT01770418",
      "title": "A Phase I/II Study of Hypofractionated Proton Therapy for Stage II-III Non-Small Cell Lung Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Lung Neoplasms"
      ],
      "interventions": [
        {
          "name": "Radiation with Concurrent Chemotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Proton Collaborative Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2013-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 6,
      "location_summary": "Jacksonville, Florida • Warrenville, Illinois • Baltimore, Maryland + 3 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Warrenville",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Somerset",
          "state": "New Jersey"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01770418"
    },
    {
      "nct_id": "NCT03482791",
      "title": "Proton Beam Therapy in the Treatment of Esophageal Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Esophagus Cancer",
        "Esophageal Cancer",
        "Cancer of the Esophagus"
      ],
      "interventions": [
        {
          "name": "Proton beam therapy",
          "type": "RADIATION"
        },
        {
          "name": "Patient-Reported Outcome Measures",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2018-04-19",
      "completion_date": "2026-08-09",
      "has_results": true,
      "last_update_posted_date": "2026-04-02",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03482791"
    },
    {
      "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": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02648997"
    },
    {
      "nct_id": "NCT04361240",
      "title": "Cardiotoxicity in Breast Cancer Patients Treated With Proton or Photon Radiotherapy: A RadComp Companion Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Cardiotoxicity"
      ],
      "interventions": [
        {
          "name": "Proton vs Photon Radiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2020-08-01",
      "completion_date": "2025-05-29",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Warrenville, Illinois • Baltimore, Maryland + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Warrenville",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04361240"
    },
    {
      "nct_id": "NCT01512589",
      "title": "Proton Beam Therapy (PBT) Versus Intensity-Modulated Radiation Therapy (IMRT) Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "Proton Beam Therapy (PBT)",
          "type": "RADIATION"
        },
        {
          "name": "Intensity Modulated Radiation Therapy (IMRT)",
          "type": "RADIATION"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "BEHAVIORAL"
      ],
      "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": 147,
      "start_date": "2012-04-30",
      "completion_date": "2027-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01512589"
    },
    {
      "nct_id": "NCT01987193",
      "title": "Feasibility Study of Tumor Blood Flow Measurement by Detection of Positron Activation Post Proton Therapy (DS01)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain Cancer",
        "Prostate Cancer",
        "Lung Cancer"
      ],
      "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": 3,
      "start_date": "2012-07",
      "completion_date": "2018-05",
      "has_results": false,
      "last_update_posted_date": "2018-05-29",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01987193"
    },
    {
      "nct_id": "NCT03894891",
      "title": "Induction TPN Followed by Nivolumab With Radiation in Locoregionally Advanced Laryngeal and Hypopharyngeal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Nivolumab",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Intensity-modulated radiotherapy",
          "type": "RADIATION"
        }
      ],
      "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": 6,
      "start_date": "2019-06-11",
      "completion_date": "2022-12-16",
      "has_results": true,
      "last_update_posted_date": "2023-12-20",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia • Boston, Massachusetts • St Louis, Missouri + 1 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03894891"
    },
    {
      "nct_id": "NCT04908709",
      "title": "Spectroscopic MRI Guided Proton Therapy in Assessing Metabolic Change in Pediatric Patients With Brain Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Malignant Brain Glioma"
      ],
      "interventions": [
        {
          "name": "Magnetic Resonance Spectroscopic Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Proton Therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 25,
      "start_date": "2018-12-20",
      "completion_date": "2030-10-13",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04908709"
    },
    {
      "nct_id": "NCT00496119",
      "title": "Proton Beam Therapy for Chordoma Patients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chordoma"
      ],
      "interventions": [
        {
          "name": "Proton Beam Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Photon Beam Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 19,
      "start_date": "2006-09-18",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00496119"
    },
    {
      "nct_id": "NCT01024907",
      "title": "Proton Beam Radiation Therapy in Treating Patients With Low Grade Gliomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Adult Brain Tumor",
        "Adult Brain Stem Glioma",
        "Adult Diffuse Astrocytoma",
        "Adult Ependymoma",
        "Adult Grade II Meningioma",
        "Adult Melanocytic Lesion",
        "Adult Meningeal Hemangiopericytoma",
        "Adult Mixed Glioma",
        "Adult Oligodendroglioma",
        "Adult Pineal Gland Astrocytoma",
        "Adult Pineocytoma",
        "Recurrent Adult Brain Tumor"
      ],
      "interventions": [
        {
          "name": "proton beam radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "OTHER"
      ],
      "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": 23,
      "start_date": "2009-12-17",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-09-02T16:45:32.629Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01024907"
    }
  ]
}