{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation&page=4",
    "query": {
      "condition": "Radiation",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 5025,
    "total_pages": 503,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T08:57:15.986Z",
  "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": "NCT06246409",
      "title": "Modernizing Instructions to Improve Treatment Participation of Subjects During Their First Radiotherapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Modernized patient instructions",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Existing patient instructions",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "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": 650,
      "start_date": "2024-12-24",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06246409"
    },
    {
      "nct_id": "NCT03075072",
      "title": "Hippocampal Sparing Whole Brain Radiation Versus Stereotactic Radiation in Patients With 5-20 Brain Metastases: A Phase III, Randomized Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Metastases"
      ],
      "interventions": [
        {
          "name": "Whole brain radiation",
          "type": "RADIATION"
        },
        {
          "name": "Stereotactic radiation (SRS)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 196,
      "start_date": "2017-04-10",
      "completion_date": "2027-09-30",
      "has_results": true,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03075072"
    },
    {
      "nct_id": "NCT05820711",
      "title": "Study Transplanting Bone Marrow Cells Into Salivary Glands to Treat Dry Mouth Caused by Radiation Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Xerostomia"
      ],
      "interventions": [
        {
          "name": "MSC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 23,
      "start_date": "2023-07-17",
      "completion_date": "2028-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05820711"
    },
    {
      "nct_id": "NCT02370199",
      "title": "Peripheral Blood Flow Responses to Electromagnetic Energy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Exposure to Man-made Visible Light"
      ],
      "interventions": [
        {
          "name": "670 nm light",
          "type": "DEVICE"
        },
        {
          "name": "octafluropropane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 40,
      "start_date": "2014-11",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02370199"
    },
    {
      "nct_id": "NCT00969111",
      "title": "Postoperative or Salvage Radiotherapy (RT) for Node Negative Prostate Cancer Following Radical Prostatectomy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "IMRT to 45 Gy; prostate bed proton boost of 21.6 CGE",
          "type": "RADIATION"
        },
        {
          "name": "Proton (prostate bed) to 70.2 CGE",
          "type": "RADIATION"
        },
        {
          "name": "IMRT to 45 Gy; proton boost to prostate bed to 25.2 CGE",
          "type": "RADIATION"
        },
        {
          "name": "Proton to 66.6 CGE",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Proton Collaborative Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 70,
      "start_date": "2009-08",
      "completion_date": "2050-08",
      "has_results": false,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 6,
      "location_summary": "Little Rock, Arkansas • Jacksonville, Florida • Warrenville, Illinois + 3 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Warrenville",
          "state": "Illinois"
        },
        {
          "city": "Flint",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00969111"
    },
    {
      "nct_id": "NCT04423211",
      "title": "Treating Prostate Cancer That Has Come Back After Surgery With Apalutamide and Targeted Radiation Based on PET Imaging",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Biochemically Recurrent Prostate Carcinoma",
        "Metastatic Prostate Carcinoma",
        "Prostate Adenocarcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "3-Dimensional Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Apalutamide",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Degarelix",
          "type": "DRUG"
        },
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Fluciclovine F18",
          "type": "OTHER"
        },
        {
          "name": "Goserelin Acetate",
          "type": "DRUG"
        },
        {
          "name": "Intensity-Modulated Proton Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Leuprolide Acetate",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Stereotactic Body Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Triptorelin",
          "type": "DRUG"
        },
        {
          "name": "Volume Modulated Arc Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "ECOG-ACRIN Cancer Research Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 804,
      "start_date": "2020-10-08",
      "completion_date": "2032-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 341,
      "location_summary": "Anchorage, Alaska • Fairbanks, Alaska • Phoenix, Arizona + 240 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04423211"
    },
    {
      "nct_id": "NCT00987298",
      "title": "Technical Validation of Lunar iDXA (GE Healthcare) Visceral Fat Tool",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Visceral fat mass measurement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "GE Healthcare",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 124,
      "start_date": "2009-12",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2010-12-08",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00987298"
    },
    {
      "nct_id": "NCT05224271",
      "title": "Evaluating Patient Reported Outcomes in Radiation Therapy, the PRO-RT Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Carcinoma",
        "Head and Neck Carcinoma",
        "Lung Carcinoma",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "Medical Device Usage and Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 18,
      "start_date": "2022-03-02",
      "completion_date": "2023-04-10",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05224271"
    },
    {
      "nct_id": "NCT00019864",
      "title": "Combination Chemotherapy Before and After Surgery in Treating Patients With Osteosarcoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cardiac Toxicity",
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "dexrazoxane hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "adjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "neoadjuvant therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "Up to 25 Years"
      },
      "enrollment_count": 100,
      "start_date": "2000-03",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2015-06-08",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 4,
      "location_summary": "Bethesda, Maryland • Oklahoma City, Oklahoma • Fort Worth, Texas + 1 more",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00019864"
    },
    {
      "nct_id": "NCT00868114",
      "title": "Direct Tumor Injection KLH-Pulsed Dendritic Cells in Unresectable Pancreatic Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "KLH-pulsed autologous dendritic cell vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Leo W. Jenkins 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": 24,
      "start_date": "2006-07",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2018-10-17",
      "last_synced_at": "2026-10-24T08:57:15.986Z",
      "location_count": 1,
      "location_summary": "Greenville, North Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00868114"
    }
  ]
}