{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Standard+fractionation+RT",
    "query": {
      "intervention": "Standard fractionation RT"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 22,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Standard+fractionation+RT&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T15:54:45.259Z",
  "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": "NCT01266642",
      "title": "Hypofractionated Radiation Therapy or Standard Radiation Therapy in Treating Patients With Ductal Breast Carcinoma In Situ or Early Invasive Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ductal Breast Carcinoma In Situ",
        "Invasive Breast Carcinoma",
        "Stage I Breast Cancer AJCC v6",
        "Stage IA Breast Cancer AJCC v7",
        "Stage IB Breast Cancer AJCC v7",
        "Stage II Breast Cancer AJCC v6 and v7",
        "Stage IIA Breast Cancer AJCC v6 and v7",
        "Stage IIB Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Hypofractionated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Whole Breast Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 301,
      "start_date": "2011-02-08",
      "completion_date": "2040-11-30",
      "has_results": true,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 7,
      "location_summary": "Gilbert, Arizona • Orlando, Florida • Conroe, Texas + 3 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Conroe",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01266642"
    },
    {
      "nct_id": "NCT03987386",
      "title": "Conventional or Hypofractionated Radiation Therapy in Treating Patients With Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stage I Prostate Cancer AJCC v8",
        "Stage II Prostate Cancer AJCC v8",
        "Stage III Prostate Cancer AJCC v8",
        "Stage IVA Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Hypofractionated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "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": 186,
      "start_date": "2019-05-30",
      "completion_date": "2027-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-20",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 3,
      "location_summary": "Houston, Texas • League City, Texas • Sugar Land, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "League City",
          "state": "Texas"
        },
        {
          "city": "Sugar Land",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03987386"
    },
    {
      "nct_id": "NCT00047008",
      "title": "Chemotherapy and Radiation Therapy With or Without Surgery in Treating Patients With Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Standard fractionation RT",
          "type": "RADIATION"
        },
        {
          "name": "Accelerated fractionation radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "Conventional surgery for select patients",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Radiation Therapy Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 743,
      "start_date": "2002-07",
      "completion_date": "2022-05-20",
      "has_results": true,
      "last_update_posted_date": "2023-07-07",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 195,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 143 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00047008"
    },
    {
      "nct_id": "NCT04683653",
      "title": "Study of Pelvic Hypofractionated Radiotherapy in Endometrial Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Endometrial Cancer"
      ],
      "interventions": [
        {
          "name": "Hypofractionated Radiation",
          "type": "RADIATION"
        },
        {
          "name": "Clinical Follow-Up and Assessments",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2021-01-15",
      "completion_date": "2027-05-22",
      "has_results": false,
      "last_update_posted_date": "2025-12-29",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 5,
      "location_summary": "Atlanta, Georgia • Chicago, Illinois • Houston, Texas + 1 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04683653"
    },
    {
      "nct_id": "NCT00268372",
      "title": "S0427, Combination Chemotherapy & RT in Treating Patients With Stage III or Stage IV Cancer of the Oropharynx",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "docetaxel",
          "type": "DRUG"
        },
        {
          "name": "5-fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2005-12",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2012-10-04",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 74,
      "location_summary": "Norwich, Connecticut • Aurora, Illinois • Chicago, Illinois + 51 more",
      "locations": [
        {
          "city": "Norwich",
          "state": "Connecticut"
        },
        {
          "city": "Aurora",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Decatur",
          "state": "Illinois"
        },
        {
          "city": "Hines",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00268372"
    },
    {
      "nct_id": "NCT03383107",
      "title": "Effect of Radiotherapy Variables on Circulating Effectors of Immune Response and Local Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Prostate Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Weill Medical College of Cornell University",
      "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": 66,
      "start_date": "2018-01-22",
      "completion_date": "2021-07-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-12",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03383107"
    },
    {
      "nct_id": "NCT04371913",
      "title": "Personalized Second Chance Breast Conservation (PSCBC): A Prospective Phase II Clinical Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "600cGY x 5 fractions APBI",
          "type": "RADIATION"
        },
        {
          "name": "270cGy x 15 fractions WBRT",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "90 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 90 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2020-06-30",
      "completion_date": "2035-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-27",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 3,
      "location_summary": "Brooklyn, New York • New York, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04371913"
    },
    {
      "nct_id": "NCT00821951",
      "title": "Vorinostat in Combination With Palliative Radiotherapy for Patients With Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Non-Small Cell Lung Cancer (NSCLC)"
      ],
      "interventions": [
        {
          "name": "Vorinostat",
          "type": "DRUG"
        },
        {
          "name": "Radiotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2009-05",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2020-11-20",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00821951"
    },
    {
      "nct_id": "NCT02730130",
      "title": "Study to Assess the Efficacy of Pembrolizumab Plus Radiotherapy in Metastatic Triple Negative Breast Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Metastatic Triple Negative"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Radiotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2016-06-03",
      "completion_date": "2022-10-12",
      "has_results": true,
      "last_update_posted_date": "2022-10-19",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Basking Ridge, New Jersey • Middletown, New Jersey + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02730130"
    },
    {
      "nct_id": "NCT06150417",
      "title": "MDRT in Prostate Cancer Treated With Long-term Androgen Deprivation Therapy in the STAMPEDE Trial (METANOVA)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer",
        "Malignant Neoplasm of Prostate",
        "Secondary Malignant Neoplasm of Prostate"
      ],
      "interventions": [
        {
          "name": "Androgen deprivation therapy (ADT)",
          "type": "DRUG"
        },
        {
          "name": "Androgen receptor signaling inhibitor (ARSI)",
          "type": "DRUG"
        },
        {
          "name": "Local Therapy: Radical Prostatectomy (RP) or Radiotherapy (RT)",
          "type": "OTHER"
        },
        {
          "name": "Metastasis directed radiotherapy (MDRT)",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "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": 200,
      "start_date": "2024-07-01",
      "completion_date": "2028-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-02T15:54:45.259Z",
      "location_count": 3,
      "location_summary": "New York, New York • Cleveland, Ohio • Madison, Wisconsin",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06150417"
    }
  ]
}