{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=radiation+therapy+%28radiotherapy%29",
    "query": {
      "intervention": "radiation therapy (radiotherapy)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7024,
    "total_pages": 703,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=radiation+therapy+%28radiotherapy%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T11:43:02.919Z",
  "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": "NCT01386632",
      "title": "Study of DCA (Dichloroacetate) in Combination With Cisplatin and Definitive Radiation in Head and Neck Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Squamous Cell Carcinoma of the Head and Neck"
      ],
      "interventions": [
        {
          "name": "DCA (dichloroacetate)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanford Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2011-05",
      "completion_date": "2020-06-01",
      "has_results": true,
      "last_update_posted_date": "2020-10-27",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 2,
      "location_summary": "Fargo, North Dakota • Sioux Falls, South Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        },
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01386632"
    },
    {
      "nct_id": "NCT00738452",
      "title": "Radiolabeled Monoclonal Antibody Therapy in Treating Patients With Stage I-IIIB Non-Small Cell Lung Cancer After Completion of Radiation Therapy Alone or Combined Radiation Therapy and Chemotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "high performance liquid chromatography",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "radionuclide imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "single photon emission computed tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "yttrium Y 90 anti-CEA monoclonal antibody cT84.66",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "RADIATION"
      ],
      "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": 10,
      "start_date": "2008-08-06",
      "completion_date": "2018-02-07",
      "has_results": false,
      "last_update_posted_date": "2018-02-13",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00738452"
    },
    {
      "nct_id": "NCT02986048",
      "title": "Proton Therapy Patient Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Treatment With Proton Beam Radiation Therapy"
      ],
      "interventions": [
        {
          "name": "Proton Beam Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 999,
      "start_date": "2016-11-22",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-09",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02986048"
    },
    {
      "nct_id": "NCT01419587",
      "title": "Ketogenic Diet With Chemoradiation for Lung Cancer (KETOLUNG)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Carcinoma, Non-Small-Cell Lung"
      ],
      "interventions": [
        {
          "name": "Ketogenic diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2011-07",
      "completion_date": "2017-07-11",
      "has_results": false,
      "last_update_posted_date": "2018-01-08",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01419587"
    },
    {
      "nct_id": "NCT03463408",
      "title": "Immunotherapy + Radiation in Resectable Soft Tissue Sarcoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "nivolumab",
          "type": "DRUG"
        },
        {
          "name": "ipilimumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2018-07-17",
      "completion_date": "2024-08-19",
      "has_results": false,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03463408"
    },
    {
      "nct_id": "NCT03146117",
      "title": "PET-DECT for Staging and Imaged Based Radiotherapy Planning in Lung Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "PET CT"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2017-04-01",
      "completion_date": "2018-06-15",
      "has_results": false,
      "last_update_posted_date": "2018-06-21",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03146117"
    },
    {
      "nct_id": "NCT00008398",
      "title": "Sargramostim in Decreasing Mucositis in Patients Receiving Radiation Therapy for Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Oral Complications",
        "Radiation Toxicity"
      ],
      "interventions": [
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Radiation Therapy Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": "2000-10",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-11-19",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 217,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 167 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00008398"
    },
    {
      "nct_id": "NCT00889187",
      "title": "Neoadjuvant Accelerated Short Course Radiation Therapy With Photons and Capecitabine for Resectable Pancreatic Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Neoadjuvant Short-Course Photon Radiation",
          "type": "RADIATION"
        },
        {
          "name": "Capecitabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "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": "2009-12",
      "completion_date": "2011-12-30",
      "has_results": true,
      "last_update_posted_date": "2018-05-11",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00889187"
    },
    {
      "nct_id": "NCT00253552",
      "title": "G-CSF-Treated Donor Bone Marrow Transplant in Treating Patients With Hematologic Disorders",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Graft Versus Host Disease",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Diseases",
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "allogeneic bone marrow transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "OHSU Knight Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "Up to 24 Years"
      },
      "enrollment_count": 4,
      "start_date": "2004-05",
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2012-05-28",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00253552"
    },
    {
      "nct_id": "NCT00578149",
      "title": "Bevacizumab and Carboplatin/Paclitaxel and Radiation in Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-Small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Bevacizumab",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2006-05",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2007-12-21",
      "last_synced_at": "2026-09-28T11:43:02.919Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00578149"
    }
  ]
}