{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Merkel+Cell+Carcinoma%2C+Stage+III",
    "query": {
      "condition": "Merkel Cell Carcinoma, Stage III"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 27,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Merkel+Cell+Carcinoma%2C+Stage+III&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-21T10:50:56.614Z",
  "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": "NCT03271372",
      "title": "Adjuvant Avelumab in Merkel Cell Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stage III Merkel Cell Carcinoma AJCC v8",
        "Stage IIIB Merkel Cell Carcinoma AJCC v8",
        "Stage IIIA Merkel Cell Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Avelumab",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Blood Collection",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 101,
      "start_date": "2017-12-19",
      "completion_date": "2029-02-18",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 9,
      "location_summary": "Orange, California • Aurora, Colorado • Tampa, Florida + 6 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03271372"
    },
    {
      "nct_id": "NCT05947500",
      "title": "Testing the Combination of Two Anticancer Drugs M1774 (Tuvusertib) and Avelumab to Evaluate Their Safety and Effectiveness in Treating Merkel Cell Skin Cancer, MATRiX Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clinical Stage III Cutaneous Merkel Cell Carcinoma AJCC v8",
        "Clinical Stage IV Cutaneous Merkel Cell Carcinoma AJCC v8",
        "Locally Advanced Merkel Cell Carcinoma",
        "Metastatic Merkel Cell Carcinoma",
        "Refractory Merkel Cell Carcinoma",
        "Unresectable Merkel Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Avelumab",
          "type": "DRUG"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Tuvusertib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2024-05-21",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 50,
      "location_summary": "Irvine, California • La Jolla, California • Los Angeles, California + 39 more",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05947500"
    },
    {
      "nct_id": "NCT03747484",
      "title": "Gene-Modified Immune Cells (FH-MCVA2TCR) in Treating Patients With Metastatic or Unresectable Merkel Cell Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Other Skin"
      ],
      "interventions": [
        {
          "name": "Autologous MCPyV-specific HLA-A02-restricted TCR-transduced CD4+ and CD8+ T-cells FH-MCVA2TCR",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Avelumab",
          "type": "DRUG"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Interferon Gamma-1b",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson 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": 7,
      "start_date": "2019-07-03",
      "completion_date": "2024-01-09",
      "has_results": true,
      "last_update_posted_date": "2025-03-06",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03747484"
    },
    {
      "nct_id": "NCT04902040",
      "title": "Plinabulin in Combination With Radiation/Immunotherapy in Patients With Select Advanced Cancers After Progression on PD-1 or PD-L1 Targeted Antibodies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Advanced Bladder Carcinoma",
        "Advanced Lung Non-Small Cell Carcinoma",
        "Advanced Malignant Solid Neoplasm",
        "Advanced Melanoma",
        "Advanced Merkel Cell Carcinoma",
        "Advanced Renal Cell Carcinoma",
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Clinical Stage III Merkel Cell Carcinoma AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Clinical Stage IV Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage III Cutaneous Melanoma AJCC v8",
        "Pathologic Stage III Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage IIIA Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIIA Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage IIIB Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIIB Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage IIIC Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIID Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IV Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IV Merkel Cell Carcinoma AJCC v8",
        "Stage III Bladder Cancer AJCC v8",
        "Stage III Lung Cancer AJCC v8",
        "Stage III Renal Cell Cancer AJCC v8",
        "Stage IIIA Bladder Cancer AJCC v8",
        "Stage IIIA Lung Cancer AJCC v8",
        "Stage IIIB Bladder Cancer AJCC v8",
        "Stage IIIB Lung Cancer AJCC v8",
        "Stage IIIC Lung Cancer AJCC v8",
        "Stage IV Bladder Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Stage IV Renal Cell Cancer AJCC v8",
        "Stage IVA Bladder Cancer AJCC v8",
        "Stage IVA Lung Cancer AJCC v8",
        "Stage IVB Bladder Cancer AJCC v8",
        "Stage IVB Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Avelumab",
          "type": "DRUG"
        },
        {
          "name": "Durvalumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Plinabulin",
          "type": "DRUG"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "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": 19,
      "start_date": "2021-04-14",
      "completion_date": "2025-02-27",
      "has_results": true,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04902040"
    },
    {
      "nct_id": "NCT00003549",
      "title": "S9716: Combination Chemotherapy in Treating Patients With Merkel Cell Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Neuroendocrine Carcinoma of the Skin"
      ],
      "interventions": [
        {
          "name": "CMF regimen",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 80,
      "start_date": "1998-10",
      "completion_date": "2003-01",
      "has_results": false,
      "last_update_posted_date": "2012-10-08",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 84,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 54 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003549"
    },
    {
      "nct_id": "NCT03798639",
      "title": "Nivolumab and Radiation Therapy or Ipilimumab as Adjuvant Therapy in Treating Patients With Merkel Cell Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Merkel Cell Carcinoma",
        "Pathologic Stage IIIA Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage IIIB Merkel Cell Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "Claire Verschraegen",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2019-01-07",
      "completion_date": "2022-12-02",
      "has_results": false,
      "last_update_posted_date": "2024-04-12",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03798639"
    },
    {
      "nct_id": "NCT00655655",
      "title": "Everolimus and Vatalanib in Treating Patients With Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gastrinoma",
        "Glucagonoma",
        "Insulinoma",
        "Metastatic Gastrointestinal Carcinoid Tumor",
        "Metastatic Pheochromocytoma",
        "Pancreatic Polypeptide Tumor",
        "Recurrent Gastrointestinal Carcinoid Tumor",
        "Recurrent Islet Cell Carcinoma",
        "Recurrent Melanoma",
        "Recurrent Neuroendocrine Carcinoma of the Skin",
        "Recurrent Non-small Cell Lung Cancer",
        "Recurrent Pheochromocytoma",
        "Recurrent Renal Cell Cancer",
        "Somatostatinoma",
        "Stage III Neuroendocrine Carcinoma of the Skin",
        "Stage IV Melanoma",
        "Stage IV Non-small Cell Lung Cancer",
        "Stage IV Renal Cell Cancer",
        "Thyroid Gland Medullary Carcinoma",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "everolimus",
          "type": "DRUG"
        },
        {
          "name": "vatalanib",
          "type": "DRUG"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "dynamic contrast-enhanced magnetic resonance imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "ultrasound imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "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": 96,
      "start_date": "2004-12",
      "completion_date": "2018-01-11",
      "has_results": false,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00655655"
    },
    {
      "nct_id": "NCT02465957",
      "title": "QUILT-3.009: Patients With Stage III (IIIB) or Stage (IV) Merkel Cell Carcinoma (MCC)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage IIIB Merkel Cell Carcinoma",
        "Stage IV Merkel Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "aNK (NK-92)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "aNK (NK-92) + N-803",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ImmunityBio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2015-09-24",
      "completion_date": "2018-03-19",
      "has_results": true,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Pittsburgh, Pennsylvania • Seattle, Washington",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02465957"
    },
    {
      "nct_id": "NCT02267603",
      "title": "Pembrolizumab in Treating Patients With Advanced Merkel Cell Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Merkel Cell Carcinoma",
        "Stage III Merkel Cell Carcinoma AJCC v7",
        "Stage IIIA Merkel Cell Carcinoma AJCC v7",
        "Stage IIIB Merkel Cell Carcinoma AJCC v7",
        "Stage IV Merkel Cell Carcinoma AJCC v7"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2014-11-25",
      "completion_date": "2021-12-15",
      "has_results": true,
      "last_update_posted_date": "2023-07-05",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 13,
      "location_summary": "Palo Alto, California • San Francisco, California • New Haven, Connecticut + 9 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02267603"
    },
    {
      "nct_id": "NCT07472322",
      "title": "ASTX727 & Retifanlimab-dlwr for Advanced Merkel Cell After Progression on Anti-PD-(L)1",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Merkel Cell Carcinoma",
        "Merkel Cell Carcinoma, Stage III",
        "Merkel Cell Carcinoma, Stage IV"
      ],
      "interventions": [
        {
          "name": "ASTX727 + retifanlimab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31,
      "start_date": "2026-07",
      "completion_date": "2031-05",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-07-21T10:50:56.614Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07472322"
    }
  ]
}