{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton&page=20",
    "query": {
      "intervention": "Proton",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 868,
    "total_pages": 87,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Proton&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T10:19:12.019Z",
  "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": "NCT02717156",
      "title": "Multicohort Phase II Trial of sEphB4-HSA+Pembrolizumab in Solid Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage IV Bladder Urothelial Carcinoma",
        "Prostate Cancer",
        "Urothelial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Recombinant EphB4-HSA Fusion Protein",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2016-11-21",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-09",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 9,
      "location_summary": "Duarte, California • Los Angeles, California • Newport Beach, California + 5 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02717156"
    },
    {
      "nct_id": "NCT02444741",
      "title": "Pembrolizumab and Stereotactic Body Radiation Therapy or Non-Stereotactic Wide-Field Radiation Therapy in Treating Patients With Non-small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Malignant Solid Neoplasm",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Stage IV Lung Non-Small Cell Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "3-Dimensional Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Proton Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Stereotactic Body Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "BIOLOGICAL"
      ],
      "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": 124,
      "start_date": "2015-09-17",
      "completion_date": "2026-02-17",
      "has_results": true,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02444741"
    },
    {
      "nct_id": "NCT01946529",
      "title": "Therapeutic Trial for Patients With Ewing Sarcoma Family of Tumor and Desmoplastic Small Round Cell Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Desmoplastic Small Round Cell Tumor",
        "Ewing Sarcoma of Bone or Soft Tissue",
        "Localized Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Metastatic Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor"
      ],
      "interventions": [
        {
          "name": "vincristine",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "temozolomide",
          "type": "DRUG"
        },
        {
          "name": "temsirolimus",
          "type": "DRUG"
        },
        {
          "name": "bevacizumab",
          "type": "DRUG"
        },
        {
          "name": "sorafenib",
          "type": "DRUG"
        },
        {
          "name": "surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "Up to 25 Years"
      },
      "enrollment_count": 24,
      "start_date": "2013-12-27",
      "completion_date": "2026-04-09",
      "has_results": true,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01946529"
    },
    {
      "nct_id": "NCT06310655",
      "title": "Online Proton Adaptive Radiotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Solid Tumor"
      ],
      "interventions": [
        {
          "name": "Proton SBRT",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "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": 10,
      "start_date": "2024-05-02",
      "completion_date": "2025-11-04",
      "has_results": true,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06310655"
    },
    {
      "nct_id": "NCT01239381",
      "title": "Individualized Stereotactic Body Radiotherapy of Liver Metastases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Solid Tumor",
        "Liver Metastases"
      ],
      "interventions": [
        {
          "name": "Stereotactic body radiotherapy-proton",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "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": 92,
      "start_date": "2010-10-05",
      "completion_date": "2017-09-01",
      "has_results": true,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01239381"
    },
    {
      "nct_id": "NCT06014827",
      "title": "Biologically Guided Radiation Therapy (BgRT) and Stereotactic Body Radiation Therapy (SBRT) to Tyrosine Kinase Inhibitor in Oligoprogressive Oncogenic Positive Non-Small Cell Lung Carcinoma",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lung Non-Small Cell Carcinoma",
        "Stage IV Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Osimertinib",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Stereotactic Body Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "City of Hope 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": 32,
      "start_date": "2024-10-21",
      "completion_date": "2027-03-09",
      "has_results": false,
      "last_update_posted_date": "2026-10-20",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 2,
      "location_summary": "Duarte, California • New Haven, Connecticut",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06014827"
    },
    {
      "nct_id": "NCT00795093",
      "title": "Partial Response to Proton Pump Inhibitors (PPI) Treatment: The Cost to Society and the Burden to the Patient - a Study in the US",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastroesophageal Reflux Disease (GERD)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 552,
      "start_date": "2008-11",
      "completion_date": "2010-01",
      "has_results": false,
      "last_update_posted_date": "2010-05-11",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 53,
      "location_summary": "Leeds, Alabama • Pheonix, Arizona • Tucson, Arizona + 50 more",
      "locations": [
        {
          "city": "Leeds",
          "state": "Alabama"
        },
        {
          "city": "Pheonix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00795093"
    },
    {
      "nct_id": "NCT07797478",
      "title": "A Study of RO7890597 in Healthy Adult Volunteers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "RO7890597",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Rabeprazole",
          "type": "DRUG"
        },
        {
          "name": "Itraconazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genentech, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 139,
      "start_date": "2026-08-28",
      "completion_date": "2027-06-08",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "Lenexa, Kansas",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07797478"
    },
    {
      "nct_id": "NCT04827355",
      "title": "Reflux Band in Laryngopharyngeal Reflux",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Laryngopharyngeal Reflux"
      ],
      "interventions": [
        {
          "name": "External Upper Esophageal Sphincter (UES) Compression Device",
          "type": "DEVICE"
        },
        {
          "name": "Sham Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "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": 72,
      "start_date": "2021-05-07",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04827355"
    },
    {
      "nct_id": "NCT01859221",
      "title": "Radiotherapy for Oligometastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oligometastatic Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Stereotactic radiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Florida",
      "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": 39,
      "start_date": "2013-05",
      "completion_date": "2022-09-13",
      "has_results": false,
      "last_update_posted_date": "2022-09-14",
      "last_synced_at": "2026-10-25T10:19:12.019Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01859221"
    }
  ]
}