{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton+beam+radiation+therapy.&page=26",
    "query": {
      "intervention": "Proton beam radiation therapy.",
      "page": 26
    },
    "page_size": 10
  },
  "pagination": {
    "page": 26,
    "page_size": 10,
    "total_count": 855,
    "total_pages": 86,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton+beam+radiation+therapy.&page=27&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton+beam+radiation+therapy.&page=25&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T07:54:59.807Z",
  "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": "NCT01102088",
      "title": "Simultaneous Integrated Boost (SIB) in Esophageal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "Radiation Therapy",
          "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": 61,
      "start_date": "2010-04",
      "completion_date": "2019-06-08",
      "has_results": false,
      "last_update_posted_date": "2020-05-22",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01102088"
    },
    {
      "nct_id": "NCT06319027",
      "title": "Identifying Findings on Brain Scans That Could Help Make Better Predictions About Brain Cancer Progression, The GABLE Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glioblastoma, IDH-Wildtype"
      ],
      "interventions": [
        {
          "name": "Dynamic Susceptibility Contrast-Enhanced Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluciclovine F18",
          "type": "OTHER"
        },
        {
          "name": "Gadolinium-Chelate",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Spectroscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "ECOG-ACRIN Cancer Research Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2024-04-11",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Jacksonville, Florida + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06319027"
    },
    {
      "nct_id": "NCT00580086",
      "title": "Monitoring Response to Neoadjuvant Chemotherapy by the Use of Breast Proton MR Spectroscopy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "MR spectroscopy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 19,
      "start_date": "2006-11",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2009-12-24",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580086"
    },
    {
      "nct_id": "NCT05176223",
      "title": "68Ga PSMA PET Imaging for the Treatment of Advanced Liver Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Hepatocellular Carcinoma",
        "Stage III Hepatocellular Carcinoma AJCC v8",
        "Stage IV Hepatocellular Carcinoma AJCC v8",
        "Unresectable Hepatocellular Carcinoma"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Gallium Ga 68 Gozetotide",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2022-01-30",
      "completion_date": "2025-12-31",
      "has_results": true,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05176223"
    },
    {
      "nct_id": "NCT02125786",
      "title": "A Trial of Surgery and Fractionated Re-Irradiation for Recurrent Ependymoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ependymoma"
      ],
      "interventions": [
        {
          "name": "Irradiation",
          "type": "RADIATION"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "^1^8F-Fluorodeoxyglucose",
          "type": "DRUG"
        },
        {
          "name": "^1^1C-methionine",
          "type": "DRUG"
        },
        {
          "name": "Photon therapy",
          "type": "DEVICE"
        },
        {
          "name": "Proton therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 68,
      "start_date": "2014-05-07",
      "completion_date": "2028-05",
      "has_results": true,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02125786"
    },
    {
      "nct_id": "NCT03719170",
      "title": "Evaluation of the National Randomized Proton Pump Inhibitor De-prescribing (RaPPID) Program",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Proton Pump Inhibitors"
      ],
      "interventions": [
        {
          "name": "PPI De-prescribing Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 220306,
      "start_date": "2019-09-16",
      "completion_date": "2021-11-30",
      "has_results": true,
      "last_update_posted_date": "2024-07-15",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 4,
      "location_summary": "West Haven, Connecticut • Ann Arbor, Michigan • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03719170"
    },
    {
      "nct_id": "NCT03539731",
      "title": "[18F]DASA-23 and PET Scan in Evaluating Pyruvate Kinase M2 Expression in Patients With Intracranial Tumors or Recurrent Glioblastoma and Healthy Volunteers",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Subject",
        "Intracranial Neoplasm",
        "Glioblastoma"
      ],
      "interventions": [
        {
          "name": "Fluorine F 18 DASA-23",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Guido A. Davidzon, MD, SM",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2018-04-23",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-08-12",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03539731"
    },
    {
      "nct_id": "NCT04941573",
      "title": "Assessment of Chronic Lung Allograft Dysfunction Using Single-breath & Multi-breath Hyperpolarized Xenon-129 MRI",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Transplant Rejection"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized 129-Xenon (MagniXene) MRI of the lung",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Xemed LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 45,
      "start_date": "2021-01-19",
      "completion_date": "2025-09-04",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04941573"
    },
    {
      "nct_id": "NCT04600466",
      "title": "Molecular and Epidemiological Risk Factors in the Development of Gastric Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastric Cancer"
      ],
      "interventions": [
        {
          "name": "Molecular testing for all participants.",
          "type": "OTHER"
        },
        {
          "name": "Germline Testing",
          "type": "OTHER"
        },
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2021-01-22",
      "completion_date": "2025-06-06",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04600466"
    },
    {
      "nct_id": "NCT00496522",
      "title": "Proton Beam Therapy for Chondrosarcoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chondrosarcoma"
      ],
      "interventions": [
        {
          "name": "Proton Beam Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 15,
      "start_date": "2006-04-28",
      "completion_date": "2028-08-19",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-16T07:54:59.807Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00496522"
    }
  ]
}