{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation+Oncology",
    "query": {
      "condition": "Radiation Oncology"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4394,
    "total_pages": 440,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Radiation+Oncology&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T10:27:22.844Z",
  "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": "NCT00329797",
      "title": "Zoledronate in Preventing Osteoporosis and Bone Fractures in Patients With Locally Advanced Nonmetastatic Prostate Cancer Undergoing Radiation Therapy and Hormone Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoporosis",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Calcium",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Zoledronic acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "LHRH",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Radiation Therapy Oncology 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": 109,
      "start_date": "2006-03",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2017-11-29",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 80,
      "location_summary": "Chico, California • Los Angeles, California • Pomona, California + 66 more",
      "locations": [
        {
          "city": "Chico",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pomona",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00329797"
    },
    {
      "nct_id": "NCT00982059",
      "title": "Colorectal Cancer Screening for Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Colonoscopic examination",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Health Network, Toronto",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "35 Years to 49 Years"
      },
      "enrollment_count": 140,
      "start_date": "2008-05",
      "completion_date": "2018-01-24",
      "has_results": false,
      "last_update_posted_date": "2018-01-31",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00982059"
    },
    {
      "nct_id": "NCT05674396",
      "title": "3-5 FrAction Stereotactic Body Radiation Therapy for Palliation of Head and Neck Squamous Cell Carcinoma: the FAST Phase II Randomized Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Stereotactic body radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Traditional Palliation",
          "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": 108,
      "start_date": "2023-06-30",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-19",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05674396"
    },
    {
      "nct_id": "NCT01848457",
      "title": "Preventing Nephrotoxicity and Ototoxicity From Osteosarcoma Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteosarcoma",
        "Nephrotoxicity",
        "Ototoxicity"
      ],
      "interventions": [
        {
          "name": "Pantoprazole",
          "type": "DRUG"
        },
        {
          "name": "High-dose methotrexate infusion duration",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 13,
      "start_date": "2013-04",
      "completion_date": "2016-10-01",
      "has_results": true,
      "last_update_posted_date": "2020-03-16",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01848457"
    },
    {
      "nct_id": "NCT01511081",
      "title": "Stereotactic Body Radiotherapy (SBRT) Versus Stereotactic Body Proton Therapy (SBPT)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-small-cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "SBRT (stereotactic body radiotherapy)",
          "type": "RADIATION"
        },
        {
          "name": "SBPT (stereotactic body 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": 21,
      "start_date": "2012-08",
      "completion_date": "2016-10",
      "has_results": true,
      "last_update_posted_date": "2017-12-07",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01511081"
    },
    {
      "nct_id": "NCT01099228",
      "title": "Combination Targeted Radiotherapy in Neuroendocrine Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Neuroendocrine Tumors"
      ],
      "interventions": [
        {
          "name": "131-I MIBG and 111-In pentetreotide",
          "type": "OTHER"
        },
        {
          "name": "131-I MIBG and In-111 DOTATATE",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "David Bushnell",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2006-09",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2016-07-21",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01099228"
    },
    {
      "nct_id": "NCT01103492",
      "title": "Treatment of Hemorrhagic Radiation Proctitis Using the Halo System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pelvic Neoplasms"
      ],
      "interventions": [
        {
          "name": "HALO90 Ablation catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2008-07",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2015-01-05",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01103492"
    },
    {
      "nct_id": "NCT01326364",
      "title": "Prognostic Value of Baseline Computed Tomography (CT) Perfusion Parameters of Pancreatic Cancer for Patients Undergoing Stereotactic Body Radiotherapy or Surgical Resection",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Stereotactic body radiotherapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Iodixanol",
          "type": "DRUG"
        },
        {
          "name": "Iohexol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "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": "2010-03",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2016-07-01",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01326364"
    },
    {
      "nct_id": "NCT00225173",
      "title": "Combination Chemotherapy +/- Radiation in High Risk Hodgkin's Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hodgkin Disease"
      ],
      "interventions": [
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Vinblastine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Bleomycin",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Vinorelbine",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 45,
      "start_date": "2001-10",
      "completion_date": "2006-09",
      "has_results": false,
      "last_update_posted_date": "2014-08-27",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00225173"
    },
    {
      "nct_id": "NCT03494569",
      "title": "Total Marrow and Lymphoid Irradiation, Fludarabine, and Melphalan Before Donor Stem Cell Transplant in Treating Participants With High-Risk Acute Leukemia or Myelodysplastic Syndrome",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Acute Lymphoblastic Leukemia in Remission",
        "Acute Myeloid Leukemia",
        "Acute Myeloid Leukemia in Remission",
        "Hematopoietic Cell Transplantation Recipient",
        "Minimal Residual Disease",
        "Myelodysplastic Syndrome",
        "Secondary Acute Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Total Marrow Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2018-07-06",
      "completion_date": "2026-06-11",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-06-26T10:27:22.844Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03494569"
    }
  ]
}