{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Unresectable+Head+and+Neck+Squamous+Cell+Carcinoma&page=4",
    "query": {
      "condition": "Unresectable Head and Neck Squamous Cell Carcinoma",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 99,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Unresectable+Head+and+Neck+Squamous+Cell+Carcinoma&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Unresectable+Head+and+Neck+Squamous+Cell+Carcinoma&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T07:39:05.919Z",
  "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": "NCT06780111",
      "title": "Substudy 06E: Umbrella Study of Combination Therapies in Esophageal Cancer (MK-3475-06E/KEYMAKER-U06)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Esophageal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "I-DXd",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Leucovorin",
          "type": "DRUG"
        },
        {
          "name": "Levoleucovorin",
          "type": "DRUG"
        },
        {
          "name": "5-Fluorouracil (5-FU)",
          "type": "DRUG"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Sacituzumab tirumotecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 298,
      "start_date": "2025-07-30",
      "completion_date": "2032-01-04",
      "has_results": false,
      "last_update_posted_date": "2026-10-02",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06780111"
    },
    {
      "nct_id": "NCT03219268",
      "title": "A Study of MGD013 in Patients With Unresectable or Metastatic Neoplasms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Solid Tumors",
        "Hematologic Neoplasms",
        "Ovarian Cancer",
        "HER2-positive Advanced Solid Tumors",
        "Non Small Cell Lung Cancer",
        "Small-cell Lung Cancer",
        "Squamous Cell Carcinoma of Head and Neck",
        "Cholangiocarcinoma",
        "Cervical Cancer",
        "TNBC - Triple-Negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "tebotelimab 1 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 3 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 10 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 30 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 120 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 300 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 400 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 600 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 800 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tebotelimab 1200 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "margetuximab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "MacroGenics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 277,
      "start_date": "2017-08-18",
      "completion_date": "2023-02-08",
      "has_results": false,
      "last_update_posted_date": "2023-12-21",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 15,
      "location_summary": "Gilbert, Arizona • Los Angeles, California • Newport Beach, California + 11 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03219268"
    },
    {
      "nct_id": "NCT04465487",
      "title": "Study of REGN6569 and Cemiplimab in Adult Patients With Advanced Solid Tumor Malignancies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Squamous Cell Carcinoma of Head and Neck"
      ],
      "interventions": [
        {
          "name": "REGN6569",
          "type": "DRUG"
        },
        {
          "name": "Cemiplimab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 38,
      "start_date": "2020-10-05",
      "completion_date": "2025-02-07",
      "has_results": false,
      "last_update_posted_date": "2025-02-24",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Tampa, Florida • Ann Arbor, Michigan + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04465487"
    },
    {
      "nct_id": "NCT00003326",
      "title": "Paclitaxel in Treating Patients With Metastatic, Recurrent, or Unresectable Cancer of the Esophagus",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Theradex",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "1997-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2008-07-24",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 30,
      "location_summary": "Mobile, Alabama • Loma Linda, California • San Francisco, California + 25 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003326"
    },
    {
      "nct_id": "NCT03625323",
      "title": "Combination Study With Soluble LAG-3 Fusion Protein Eftilagimod Alpha (IMP321) and Pembrolizumab in Patients With Previously Untreated Unresectable or Metastatic NSCLC, or Recurrent PD-X Refractory NSCLC or With Recurrent or Metastatic HNSCC",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "NSCLC",
        "HNSCC"
      ],
      "interventions": [
        {
          "name": "eftilagimod alpha",
          "type": "DRUG"
        },
        {
          "name": "pembrolizumab (KEYTRUDA®)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Immutep S.A.S.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 187,
      "start_date": "2019-02-21",
      "completion_date": "2024-11-25",
      "has_results": true,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 1,
      "location_summary": "Huston, Texas",
      "locations": [
        {
          "city": "Huston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03625323"
    },
    {
      "nct_id": "NCT03799003",
      "title": "A Study of ASP1951 in Subjects With Advanced Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Solid Tumors"
      ],
      "interventions": [
        {
          "name": "ASP1951",
          "type": "DRUG"
        },
        {
          "name": "pembrolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Astellas Pharma Global Development, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2019-01-14",
      "completion_date": "2023-07-06",
      "has_results": false,
      "last_update_posted_date": "2024-11-01",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 20,
      "location_summary": "Tucson, Arizona • Sacramento, California • Gainesville, Florida + 15 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03799003"
    },
    {
      "nct_id": "NCT04007744",
      "title": "Sonidegib and Pembrolizumab in Treating Patients With Advanced Solid Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Clinical Stage III Gastric Cancer AJCC v8",
        "Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Clinical Stage IV Gastric Cancer AJCC v8",
        "Clinical Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8",
        "Locally Advanced Gastric Adenocarcinoma",
        "Locally Advanced Gastroesophageal Junction Adenocarcinoma",
        "Locally Advanced Urothelial Carcinoma",
        "Metastatic Gastric Adenocarcinoma",
        "Metastatic Gastroesophageal Junction Adenocarcinoma",
        "Metastatic Head and Neck Squamous Cell Carcinoma",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Melanoma",
        "Metastatic Urothelial Carcinoma",
        "Recurrent Head and Neck Squamous Cell Carcinoma",
        "Refractory Lung Non-Small Cell Carcinoma",
        "Stage IV Cutaneous Squamous Cell Carcinoma of the Head and Neck AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Unresectable Malignant Solid Neoplasm",
        "Unresectable Melanoma"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sonidegib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "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": 36,
      "start_date": "2020-02-13",
      "completion_date": "2027-07-02",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04007744"
    },
    {
      "nct_id": "NCT03748134",
      "title": "Sintilimab or Placebo With Chemotherapy in Esophageal Squamous Cell Carcinoma ( ORIENT-15 )",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Esophageal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Sintilimab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Innovent Biologics (Suzhou) Co. Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 746,
      "start_date": "2018-12-24",
      "completion_date": "2023-07-29",
      "has_results": false,
      "last_update_posted_date": "2023-10-24",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 7,
      "location_summary": "Anaheim, California • Orange, California • Denver, Colorado + 4 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Columbus",
          "state": "Georgia"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03748134"
    },
    {
      "nct_id": "NCT03274414",
      "title": "A Clinical Trial of Endoscopic Surgery Followed by Chemotherapy and Proton Radiation for the Treatment of Tumors in the Sinus and Nasal Passages",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Paranasal Sinus Cancer",
        "Nasal Cavity Tumor",
        "Nasal Cavity Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Adjuvant Proton Radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Endoscopic Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "cisplatin and etoposide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 3,
      "start_date": "2017-09-01",
      "completion_date": "2023-01-13",
      "has_results": true,
      "last_update_posted_date": "2025-05-16",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 5,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 2 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Harrison",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03274414"
    },
    {
      "nct_id": "NCT03229278",
      "title": "Trigriluzole With Nivolumab and Pembrolizumab in Treating Patients With Metastatic or Unresectable Solid Malignancies or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Melanoma",
        "Metastatic Renal Cell Cancer",
        "Recurrent Bladder Carcinoma",
        "Recurrent Classical Hodgkin Lymphoma",
        "Recurrent Head and Neck Squamous Cell Carcinoma",
        "Recurrent Lymphoma",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Renal Cell Carcinoma",
        "Stage III Bladder Cancer",
        "Stage III Lymphoma",
        "Stage III Non-Small Cell Lung Cancer AJCC v7",
        "Stage III Renal Cell Cancer",
        "Stage III Skin Melanoma",
        "Stage IIIA Non-Small Cell Lung Cancer AJCC v7",
        "Stage IIIA Skin Melanoma",
        "Stage IIIB Non-Small Cell Lung Cancer AJCC v7",
        "Stage IIIB Skin Melanoma",
        "Stage IIIC Skin Melanoma",
        "Stage IV Bladder Cancer",
        "Stage IV Lymphoma",
        "Stage IV Non-Small Cell Lung Cancer AJCC v7",
        "Stage IV Renal Cell Cancer",
        "Stage IV Skin Melanoma",
        "Stage IVA Bladder Cancer",
        "Stage IVB Bladder Cancer",
        "Unresectable Head and Neck Squamous Cell Carcinoma",
        "Unresectable Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Enzyme Inhibitor Therapy",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": "2017-10-03",
      "completion_date": "2022-10-30",
      "has_results": true,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-10-13T07:39:05.919Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03229278"
    }
  ]
}