{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Carcinoma+of+Head%2FNeck&page=15",
    "query": {
      "condition": "Carcinoma of Head/Neck",
      "page": 15
    },
    "page_size": 10
  },
  "pagination": {
    "page": 15,
    "page_size": 10,
    "total_count": 1990,
    "total_pages": 199,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Carcinoma+of+Head%2FNeck&page=16&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Carcinoma+of+Head%2FNeck&page=14&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T08:47:39.917Z",
  "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": "NCT05812027",
      "title": "A Screening Study to Collect Samples for TAA, HLA & HLA Loss of Heterozygosity in Patients With Metastatic Solid Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Cancer",
        "Cervical Cancer",
        "Non Small Cell Lung Cancer",
        "HPV16 Related Cancers",
        "Sarcoma",
        "Uveal Melanoma",
        "NUT Carcinoma"
      ],
      "interventions": [
        {
          "name": "Tumor and HLA Profiling",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "TScan Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1150,
      "start_date": "2023-06-26",
      "completion_date": "2027-01-14",
      "has_results": false,
      "last_update_posted_date": "2025-11-17",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 21,
      "location_summary": "Scottsdale, Arizona • San Diego, California • New Haven, Connecticut + 17 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05812027"
    },
    {
      "nct_id": "NCT06034860",
      "title": "Study of MT-8421 as Monotherapy and in Combination With Nivolumab in Patients With Selected Advanced Solid Cancer Types",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Non Small Cell Lung Cancer",
        "Hepatocellular Carcinoma",
        "Melanoma",
        "Renal Cell Carcinoma",
        "Microsatellite Instability High",
        "Mismatch Repair Deficiency",
        "Mesothelioma",
        "Esophageal Squamous Cell Carcinoma",
        "Squamous Cell Carcinoma of Head and Neck",
        "Urothelial Carcinoma",
        "Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "MT-8421",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Molecular Templates, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2023-11-01",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-11-01",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Lafayette, Indiana • St Louis, Missouri + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Lafayette",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06034860"
    },
    {
      "nct_id": "NCT05208762",
      "title": "A Study of PF-08046054/SGN-PDL1V in Advanced Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Carcinoma, Non-Small-Cell Lung",
        "Squamous Cell Carcinoma of the Head and Neck",
        "Esophageal Squamous Cell Carcinoma",
        "Triple Negative Breast Neoplasms",
        "Gastric Cancer",
        "Endometrial Cancer",
        "Pancreatic Adenocarcinoma",
        "Hepatocellular Carcinoma"
      ],
      "interventions": [
        {
          "name": "PF-08046054",
          "type": "DRUG"
        },
        {
          "name": "pembrolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Seagen, a wholly owned subsidiary of Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 714,
      "start_date": "2022-10-25",
      "completion_date": "2029-01-04",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • Irvine, California • Orange, California + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05208762"
    },
    {
      "nct_id": "NCT07529080",
      "title": "Personalized Cancer Support (Thrive Track) to Manage the Emotional Needs of Young Adults With Thyroid, Melanoma and Testicular Cancer, PerCS-YA Trial",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Differentiated Thyroid Gland Carcinoma",
        "Malignant Testicular Neoplasm",
        "Melanoma",
        "Thyroid Gland Follicular Carcinoma",
        "Thyroid Gland Papillary Carcinoma"
      ],
      "interventions": [
        {
          "name": "Internet-Based Intervention",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan Rogel Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "20 Years to 39 Years"
      },
      "enrollment_count": 142,
      "start_date": "2026-07",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-06-24",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07529080"
    },
    {
      "nct_id": "NCT00003103",
      "title": "Chemotherapy in Treating Patients With Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Bladder Cancer",
        "Breast Cancer",
        "Colorectal Cancer",
        "Esophageal Cancer",
        "Head and Neck Cancer",
        "Kidney Cancer",
        "Lung Cancer",
        "Ovarian Cancer",
        "Prostate Cancer",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "oblimersen sodium",
          "type": "BIOLOGICAL"
        },
        {
          "name": "docetaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "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": 57,
      "start_date": "1997-08",
      "completion_date": "2002-08",
      "has_results": false,
      "last_update_posted_date": "2013-07-03",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003103"
    },
    {
      "nct_id": "NCT02663583",
      "title": "Intensity-Modulated Proton Therapy (IMPT) or TransOral Robotic Surgery (TORS) for the Treatment of Low-Risk Oropharynx Squamous Cell",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer of the Mouth",
        "Oropharynx Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Symptom Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dysphagia Inventory Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Activity Bands",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 44,
      "start_date": "2016-01",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2019-05-23",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02663583"
    },
    {
      "nct_id": "NCT02834013",
      "title": "Nivolumab and Ipilimumab in Treating Patients With Rare Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acinar Cell Carcinoma",
        "Adenoid Cystic Carcinoma",
        "Adrenal Cortical Carcinoma",
        "Adrenal Gland Pheochromocytoma",
        "Anal Canal Neuroendocrine Carcinoma",
        "Anal Canal Undifferentiated Carcinoma",
        "Angiosarcoma",
        "Apocrine Neoplasm",
        "Appendix Mucinous Adenocarcinoma",
        "Bartholin Gland Transitional Cell Carcinoma",
        "Basal Cell Carcinoma",
        "Bladder Adenocarcinoma",
        "Breast Metaplastic Carcinoma",
        "Cervical Adenocarcinoma",
        "Cholangiocarcinoma",
        "Chordoma",
        "Colorectal Squamous Cell Carcinoma",
        "Desmoid Fibromatosis",
        "Endometrial Transitional Cell Carcinoma",
        "Endometrioid Adenocarcinoma",
        "Esophageal Neuroendocrine Carcinoma",
        "Esophageal Undifferentiated Carcinoma",
        "Extrahepatic Bile Duct Carcinoma",
        "Extramammary Paget Disease",
        "Fallopian Tube Adenocarcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Fibromyxoid Tumor",
        "Gallbladder Carcinoma",
        "Gastric Neuroendocrine Carcinoma",
        "Gastric Squamous Cell Carcinoma",
        "Gastric Undifferentiated Carcinoma",
        "Gastrointestinal Stromal Tumor",
        "Gestational Trophoblastic Tumor",
        "Giant Cell Carcinoma",
        "Human Papillomavirus-Independent Cervical Adenocarcinoma, Clear Cell-Type",
        "Intestinal Neuroendocrine Carcinoma",
        "Intrahepatic Cholangiocarcinoma",
        "Lung Neuroendocrine Tumor",
        "Lung Sarcomatoid Carcinoma",
        "Major Salivary Gland Carcinoma",
        "Malignant Neoplasm of Unknown Primary",
        "Malignant Odontogenic Neoplasm",
        "Malignant Peripheral Nerve Sheath Tumor",
        "Malignant Solid Neoplasm",
        "Malignant Testicular Sex Cord-Stromal Tumor",
        "Metastatic Pituitary Neuroendocrine Tumor",
        "Minimally Invasive Lung Adenocarcinoma",
        "Mixed Mesodermal (Mullerian) Tumor",
        "Mucinous Adenocarcinoma",
        "Mucinous Cystadenocarcinoma",
        "Nasal Cavity Adenocarcinoma",
        "Nasal Cavity Carcinoma",
        "Nasopharyngeal Carcinoma",
        "Nasopharyngeal Low Grade Papillary Adenocarcinoma",
        "Nasopharyngeal Undifferentiated Carcinoma",
        "Oral Cavity Carcinoma",
        "Oropharyngeal Undifferentiated Carcinoma",
        "Ovarian Adenocarcinoma",
        "Ovarian Germ Cell Tumor",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Squamous Cell Carcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Pancreatic Acinar Cell Carcinoma",
        "Pancreatic Neuroendocrine Carcinoma",
        "Paraganglioma",
        "Paranasal Sinus Adenocarcinoma",
        "Paranasal Sinus Carcinoma",
        "Parathyroid Gland Carcinoma",
        "PEComa",
        "Penile Squamous Cell Carcinoma",
        "Peritoneal Mesothelial Neoplasm",
        "Placental Choriocarcinoma",
        "Primary Peritoneal High Grade Serous Adenocarcinoma",
        "Pseudomyxoma Peritonei",
        "Rare Disorder",
        "Scrotal Squamous Cell Carcinoma",
        "Seminal Vesicle Adenocarcinoma",
        "Seminoma",
        "Serous Cystadenocarcinoma",
        "Small Intestinal Adenocarcinoma",
        "Small Intestinal Squamous Cell Carcinoma",
        "Spindle Cell Neoplasm",
        "Teratoma With Somatic-Type Malignancy",
        "Testicular Non-Seminomatous Germ Cell Tumor",
        "Thyroid Gland Carcinoma",
        "Tracheal Carcinoma",
        "Transitional Cell Carcinoma",
        "Ureter Adenocarcinoma",
        "Ureter Squamous Cell Carcinoma",
        "Urethral Adenocarcinoma",
        "Urethral Squamous Cell Carcinoma",
        "Vaginal Adenocarcinoma",
        "Vaginal Squamous Cell Carcinoma, Not Otherwise Specified",
        "Vulvar Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "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": 798,
      "start_date": "2017-01-30",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1006,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 620 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02834013"
    },
    {
      "nct_id": "NCT07405086",
      "title": "Morning Versus Afternoon Administration of Immunotherapy for the Treatment of Advanced or Metastatic Solid Tumors, The Knight SHIFT Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Advanced Biliary Tract Carcinoma",
        "Advanced Head and Neck Squamous Cell Carcinoma",
        "Advanced Hepatocellular Carcinoma",
        "Advanced Lung Non-Small Cell Carcinoma",
        "Advanced Malignant Solid Neoplasm",
        "Advanced Melanoma",
        "Advanced Renal Cell Carcinoma",
        "Metastatic Biliary Tract Carcinoma",
        "Metastatic Head and Neck Squamous Cell Carcinoma",
        "Metastatic Hepatocellular Carcinoma",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Melanoma",
        "Metastatic Renal Cell Carcinoma",
        "Recurrent Head and Neck Squamous Cell Carcinoma",
        "Stage III Hepatocellular Carcinoma AJCC v8",
        "Stage III Lung Cancer AJCC v8",
        "Stage III Renal Cell Cancer AJCC v8",
        "Stage IV Hepatocellular Carcinoma AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Stage IV Renal Cell Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Immune Checkpoint Inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "OHSU Knight 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": 160,
      "start_date": "2026-04-24",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-13",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07405086"
    },
    {
      "nct_id": "NCT03854227",
      "title": "A Dose Escalation Study Of PF-06939999 In Participants With Advanced Or Metastatic Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Solid Tumors",
        "Metastatic Solid Tumors"
      ],
      "interventions": [
        {
          "name": "PF-06939999 dose escalation",
          "type": "DRUG"
        },
        {
          "name": "PF-06939999 monotherapy",
          "type": "DRUG"
        },
        {
          "name": "PF-06939999 in combination with docetaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2019-03-14",
      "completion_date": "2022-04-27",
      "has_results": true,
      "last_update_posted_date": "2025-01-13",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 22,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • Pasadena, California + 10 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03854227"
    },
    {
      "nct_id": "NCT04643379",
      "title": "Olaparib in Combination With Pembrolizumab and Carboplatin as First-Line Treatment of Recurrent or Metastatic Head and Neck Squamous-Cell Carcinoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Head and Neck Squamous Cell Carcinoma",
        "Metastatic Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Peripheral blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "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": 30,
      "start_date": "2021-08-07",
      "completion_date": "2028-10-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-22",
      "last_synced_at": "2026-10-15T08:47:39.917Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04643379"
    }
  ]
}