{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Radiation+-+Dose+Level+4",
    "query": {
      "intervention": "Radiation - Dose Level 4"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1038,
    "total_pages": 104,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Radiation+-+Dose+Level+4&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T10:57:07.418Z",
  "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": "NCT01165658",
      "title": "Study of Hypofractionated Proton Radiation Therapy in Thoracic Malignancies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Non-small Cell Lung Cancer",
        "Small Cell Lung Cancer",
        "Carcinoid",
        "Thymic Cancer",
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Proton 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": 30,
      "start_date": "2010-07-16",
      "completion_date": "2016-07-19",
      "has_results": false,
      "last_update_posted_date": "2020-01-02",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01165658"
    },
    {
      "nct_id": "NCT03388632",
      "title": "Recombinant Interleukin-15 in Combination With Checkpoint Inhibitors Nivolumab and Ipilimumab in People With Refractory Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Metastatic Solid Tumors",
        "Treatment-Refractory Cancers"
      ],
      "interventions": [
        {
          "name": "rhIL-15",
          "type": "DRUG"
        },
        {
          "name": "Ipilimumab",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "DRUG"
        },
        {
          "name": "Tumor biopsies",
          "type": "PROCEDURE"
        },
        {
          "name": "EKG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "ECHO",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT Scan",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 31,
      "start_date": "2018-02-05",
      "completion_date": "2025-05-08",
      "has_results": true,
      "last_update_posted_date": "2025-12-18",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03388632"
    },
    {
      "nct_id": "NCT00032006",
      "title": "Hormone Therapy Followed By Internal Radiation Therapy in Treating Patients With Locally Recurrent Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "brachytherapy",
          "type": "RADIATION"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "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": 48,
      "start_date": "2002-02",
      "completion_date": "2003-10",
      "has_results": false,
      "last_update_posted_date": "2016-07-13",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 8,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Urbana, Illinois + 5 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Urbana",
          "state": "Illinois"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00032006"
    },
    {
      "nct_id": "NCT00675714",
      "title": "Assessment of the Treatment of Severely Burned With Anabolic Agents on Clinical Outcomes, Recovery and Rehabilitation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Burns"
      ],
      "interventions": [
        {
          "name": "Stable Isotope Infusion Study",
          "type": "PROCEDURE"
        },
        {
          "name": "Collection of blood and tissues",
          "type": "PROCEDURE"
        },
        {
          "name": "Radiology testing: Dual-energy X-ray absorptiometry (DEXA), ultrasound, MRI",
          "type": "PROCEDURE"
        },
        {
          "name": "Humatrope",
          "type": "DRUG"
        },
        {
          "name": "Ketoconazole",
          "type": "DRUG"
        },
        {
          "name": "Oxandrolone",
          "type": "DRUG"
        },
        {
          "name": "Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Oxandrolone and propranolol combined",
          "type": "DRUG"
        },
        {
          "name": "Humatrope and propranolol combined",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Exercise--Hospital supervised intensive exercise program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Home exercise program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "Up to 80 Years"
      },
      "enrollment_count": 1126,
      "start_date": "2004-01",
      "completion_date": "2019-07-15",
      "has_results": false,
      "last_update_posted_date": "2019-11-29",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Galveston, Texas",
      "locations": [
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00675714"
    },
    {
      "nct_id": "NCT03515538",
      "title": "Safety and Efficacy of RRx-001 in the Attenuation of Oral Mucositis in Patients Receiving Chemoradiation for the Treatment of Oral Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Oral Mucositis"
      ],
      "interventions": [
        {
          "name": "RRx-001",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin for injection",
          "type": "DRUG"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "EpicentRx, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 53,
      "start_date": "2018-07-12",
      "completion_date": "2020-10-08",
      "has_results": true,
      "last_update_posted_date": "2024-11-04",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 12,
      "location_summary": "Santa Monica, California • Denver, Colorado • Washington D.C., District of Columbia + 9 more",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03515538"
    },
    {
      "nct_id": "NCT00103285",
      "title": "Combination Chemotherapy in Treating Young Patients With Newly Diagnosed Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Childhood B Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "3-Dimensional Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Pegaspargase",
          "type": "DRUG"
        },
        {
          "name": "Thioguanine",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "9 Years",
        "sex": "ALL",
        "summary": "1 Year to 9 Years"
      },
      "enrollment_count": 5377,
      "start_date": "2005-04-11",
      "completion_date": "2021-03-31",
      "has_results": true,
      "last_update_posted_date": "2021-06-14",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 210,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Mesa, Arizona + 151 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00103285"
    },
    {
      "nct_id": "NCT05463133",
      "title": "Allogeneic Hematopoietic Stem Cell Transplantation for Chronic Granulomatous Disease (CGD) With an Alemtuzumab, Busulfan and TBI-based Conditioning Regimen Combined With Cytokine (IL-6, +/- IFN-gamma) Antagonists",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Granulomatous Disease"
      ],
      "interventions": [
        {
          "name": "Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        },
        {
          "name": "Pheripheral blood stem cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Emapalumab-Izsg",
          "type": "DRUG"
        },
        {
          "name": "Tociluzumab",
          "type": "DRUG"
        },
        {
          "name": "Total Body Irradiation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "4 Years to 65 Years"
      },
      "enrollment_count": 50,
      "start_date": "2022-07-08",
      "completion_date": "2032-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463133"
    },
    {
      "nct_id": "NCT06048484",
      "title": "Combination Therapy in Patients With Localized Pancreatic Ductal Adenocarcinoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Ductal Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Stereotactic body radiotherapy (SBRT)",
          "type": "RADIATION"
        },
        {
          "name": "Zimberelimab",
          "type": "DRUG"
        },
        {
          "name": "Quemliclustat",
          "type": "DRUG"
        },
        {
          "name": "Etrumadenant",
          "type": "DRUG"
        },
        {
          "name": "Modified FOLFIRINOX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Gulam Manji",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-05-10",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 5,
      "location_summary": "Lake Success, New York • New York, New York • Chapel Hill, North Carolina + 2 more",
      "locations": [
        {
          "city": "Lake Success",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06048484"
    },
    {
      "nct_id": "NCT00763490",
      "title": "Trial Of Double Umbilical Cord Blood Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hematological Malignancies"
      ],
      "interventions": [
        {
          "name": "Full intensity, double umbilical cord, stem cell transplant",
          "type": "PROCEDURE"
        },
        {
          "name": "Flu/Bu4 conditioning regimen",
          "type": "DRUG"
        },
        {
          "name": "Total Lymphoid Irradiation (TLI)",
          "type": "RADIATION"
        },
        {
          "name": "Graft versus Host Disease prevention (GVHD prophylaxis)",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "University of Michigan Rogel Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "Up to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2008-12",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2016-12-23",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00763490"
    },
    {
      "nct_id": "NCT02390518",
      "title": "Stereotactic Radiosurgery Dose Escalation for Brain Metastases",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain Metastases"
      ],
      "interventions": [
        {
          "name": "Stereotactic Radiosurgery",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 86,
      "start_date": "2015-05-07",
      "completion_date": "2029-10",
      "has_results": false,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-09-08T10:57:07.418Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02390518"
    }
  ]
}