{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Extranodal+extension",
    "query": {
      "intervention": "Extranodal extension"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Extranodal+extension&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T12:18:55.944Z",
  "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": "NCT06088381",
      "title": "Selective Adjuvant Therapy for HPV-mediated Oropharynx SCCs Based on Residual Circulating Tumor DNA Levels (SAVAL)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Head and Neck Squamous Cell Carcinoma",
        "Oropharynx Cancer",
        "Oropharynx Squamous Cell Carcinoma",
        "HPV Positive Oropharyngeal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Experimental Observation",
          "type": "OTHER"
        },
        {
          "name": "Observation per Standard of Care",
          "type": "OTHER"
        },
        {
          "name": "Adjuvant Treatment per Standard of Care",
          "type": "RADIATION"
        },
        {
          "name": "Circulating Tumor DNA test (ctDNA test)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "RADIATION",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2024-03-07",
      "completion_date": "2030-12-18",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 5,
      "location_summary": "Baltimore, Maryland • Bel Air, Maryland • Columbia, Maryland + 1 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Bel Air",
          "state": "Maryland"
        },
        {
          "city": "Columbia",
          "state": "Maryland"
        },
        {
          "city": "Glen Burnie",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06088381"
    },
    {
      "nct_id": "NCT02784288",
      "title": "Phase II Treatment Stratification Trial Using Neck Dissection-Driven Selection to Improve Quality of Life for Low Risk Patients With HPV+ Oropharyngeal Squamous Cell Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Oropharyngeal Squamous Cell Cancer"
      ],
      "interventions": [
        {
          "name": "Neck Dissection",
          "type": "PROCEDURE"
        },
        {
          "name": "Standard-of-Care (SOC) Transoral Surgery of Primary Site",
          "type": "PROCEDURE"
        },
        {
          "name": "SOC Radiation",
          "type": "RADIATION"
        },
        {
          "name": "SOC Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "SOC Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Videofluoroscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "University of Michigan Rogel 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": 40,
      "start_date": "2016-10-31",
      "completion_date": "2022-07-12",
      "has_results": true,
      "last_update_posted_date": "2023-06-27",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02784288"
    },
    {
      "nct_id": "NCT00020579",
      "title": "MS-275 in Treating Patients With Advanced Solid Tumors or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "entinostat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2001-03",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2012-03-15",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 3,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00020579"
    },
    {
      "nct_id": "NCT05936502",
      "title": "Ascertaining the Radiologic Prognostic Importance of Extranodal Extension on Imaging (iENE) in Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma",
        "Extranodal Extension",
        "Human Papilloma Virus Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Extranodal extension",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Head and Neck Cancer International Group",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3500,
      "start_date": "2022-07-11",
      "completion_date": "2023-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-02-01",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 3,
      "location_summary": "Omaha, Nebraska • New York, New York • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05936502"
    },
    {
      "nct_id": "NCT00004196",
      "title": "Interferon Alfa-2b in Treating Patients With Melanoma and Early Lymph Node Metastasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Melanoma (Skin)"
      ],
      "interventions": [
        {
          "name": "recombinant interferon alfa",
          "type": "BIOLOGICAL"
        },
        {
          "name": "lymphangiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Observation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "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": 3000,
      "start_date": "1999-10",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2014-01-20",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 4,
      "location_summary": "Birmingham, Alabama • Louisville, Kentucky • New Brunswick, New Jersey + 1 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004196"
    },
    {
      "nct_id": "NCT05565313",
      "title": "Predicting Radiological Extranodal Extension in Oropharyngeal Carcinoma Patients Using AI",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Carcinoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Maastricht Radiation Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 900,
      "start_date": "2022-03-22",
      "completion_date": "2026-08-01",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05565313"
    },
    {
      "nct_id": "NCT02678520",
      "title": "Clinical Trial Comparing 3-D RT vs. IMRT in Post- Prostatectomy Prostate Cancer Patients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "3-D Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Intensity Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Casodex, Zoladex , Lupron",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "University of Kansas Medical 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": 0,
      "start_date": "2015-12",
      "completion_date": "2016-02",
      "has_results": false,
      "last_update_posted_date": "2016-07-22",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 1,
      "location_summary": "Fairway, Kansas",
      "locations": [
        {
          "city": "Fairway",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02678520"
    },
    {
      "nct_id": "NCT03621696",
      "title": "Surgery Followed by Risk-Directed Post-Operative Adjuvant Therapy for HPV-Related Oropharynx Squamous Cell Carcinoma: \"The Minimalist Trial (MINT)\"",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HPV Related Oropharyngeal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Intensity modulated radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "Intensity modulated proton therapy",
          "type": "RADIATION"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "FACT-H&N",
          "type": "OTHER"
        },
        {
          "name": "MD Anderson Dysphagia Inventory",
          "type": "OTHER"
        },
        {
          "name": "University of Michigan Xerostomia Index",
          "type": "OTHER"
        },
        {
          "name": "Scale of Subjective Total Taste Acuity",
          "type": "OTHER"
        },
        {
          "name": "Neck Dissection Impairment Index",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 63,
      "start_date": "2018-10-23",
      "completion_date": "2026-03-17",
      "has_results": true,
      "last_update_posted_date": "2026-04-21",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03621696"
    },
    {
      "nct_id": "NCT02924402",
      "title": "Study to Evaluate Safety and Tolerability of XmAb13676 (Plamotamab) in Patients With CD20-expressing Hematologic Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "B-cell Non-Hodgkins Lymphoma",
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "XmAb13676",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Xencor, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 154,
      "start_date": "2016-10",
      "completion_date": "2024-04",
      "has_results": false,
      "last_update_posted_date": "2024-11-13",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 10,
      "location_summary": "La Jolla, California • Jacksonville, Florida • Atlanta, Georgia + 7 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02924402"
    },
    {
      "nct_id": "NCT05419089",
      "title": "The Sinai Robotic Surgery Trial in HPV-related Oropharyngeal Squamous Cell Carcinoma (SIRS 2.0 Trial)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HPV-positive Oropharyngeal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Robotic surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 83,
      "start_date": "2022-07-12",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-09-22T12:18:55.944Z",
      "location_count": 2,
      "location_summary": "Paramus, New Jersey • New York, New York",
      "locations": [
        {
          "city": "Paramus",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05419089"
    }
  ]
}