{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Central+Nervous+System+Carcinoma&page=4",
    "query": {
      "condition": "Central Nervous System Carcinoma",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 236,
    "total_pages": 24,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Central+Nervous+System+Carcinoma&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Central+Nervous+System+Carcinoma&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T21:56:06.281Z",
  "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": "NCT05376878",
      "title": "An Investigational Scan (64Cu-DOTA-Trastuzumab PET/MRI) in Imaging Patients With HER2+ Breast Cancer With Brain Metastasis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Metastatic Breast Carcinoma",
        "Metastatic Malignant Neoplasm in the Brain"
      ],
      "interventions": [
        {
          "name": "Copper Cu 64-DOTA-Trastuzumab",
          "type": "OTHER"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "DEVICE"
        },
        {
          "name": "Trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Trastuzumab Deruxtecan",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "DEVICE",
        "BIOLOGICAL"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2022-12-21",
      "completion_date": "2027-04-27",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05376878"
    },
    {
      "nct_id": "NCT01135849",
      "title": "B-Receptor Signaling in Cardiomyopathy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Carcinomas",
        "Amyloidosis",
        "Anal Cancer",
        "Anemia",
        "Cholangiocarcinoma of the Extrahepatic Bile Duct",
        "Transitional Cell Carcinoma of Bladder",
        "Bone Marrow Transplant Failure",
        "Bone Cancer",
        "Cancer of Brain and Nervous System",
        "Breast Cancer",
        "Carcinoma of the Large Intestine",
        "Endocrine Cancer",
        "Esophageal Cancer",
        "Eye Cancer",
        "Gall Bladder Cancer",
        "Gastric (Stomach) Cancer",
        "Gastrooesophageal Cancer",
        "Gastrointestinal Stromal Tumor (GIST)",
        "Gynecologic Cancers",
        "Head and Neck Cancers",
        "Hepatobiliary Neoplasm",
        "Kidney (Renal Cell) Cancer",
        "Leukemia",
        "Lung Cancer",
        "Hodgkin Disease",
        "Lymphoma, Non-Hodgkin",
        "Mesothelioma",
        "Multiple Myeloma",
        "Myelodysplastic Syndromes (MDS)",
        "Neuroendocrine Tumors",
        "Myeloproliferative Disorders",
        "Pancreatic Cancer",
        "Prostate Cancer",
        "Skin Cancer",
        "Soft Tissue Sarcoma",
        "Testicular Cancer",
        "Thymus Cancer",
        "Thyroid Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Daniel Bernstein",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "Up to 40 Years"
      },
      "enrollment_count": 99,
      "start_date": "2008-11",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2015-11-17",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01135849"
    },
    {
      "nct_id": "NCT04789668",
      "title": "Bintrafusp Alfa and Pimasertib for the Treatment of Patients With Brain Metastases",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Hormone Receptor Positive Breast Adenocarcinoma",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Neoplasm in the Brain",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Melanoma",
        "Metastatic Triple-Negative Breast Carcinoma",
        "Pathologic Stage IV Cutaneous Melanoma AJCC v8",
        "Prognostic Stage IV Breast Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Stage IVA Lung Cancer AJCC v8",
        "Stage IVB Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Bintrafusp Alfa",
          "type": "DRUG"
        },
        {
          "name": "Pimasertib",
          "type": "DRUG"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 8,
      "start_date": "2021-01-15",
      "completion_date": "2023-12-08",
      "has_results": true,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04789668"
    },
    {
      "nct_id": "NCT06518057",
      "title": "Hippocampal Avoidance in Craniospinal Irradiation for the Treatment of Leptomeningeal Metastases From Breast Cancer or Non-small Cell Lung Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Metastatic Breast Carcinoma",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Neoplasm in the Leptomeninges",
        "Stage IV Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Proton Beam Craniospinal Irradiation",
          "type": "RADIATION"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        },
        {
          "name": "Volume Modulated Arc Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Hippocampal-Avoidance Craniospinal Irradiation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "RADIATION"
      ],
      "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": 22,
      "start_date": "2025-03-03",
      "completion_date": "2028-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 3,
      "location_summary": "San Francisco, California • New York, New York • Seattle, Washington",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06518057"
    },
    {
      "nct_id": "NCT05934630",
      "title": "Testing Cerebrospinal Fluid for Cell-free Tumor DNA in Children, Adolescents, and Young Adults With Brain Tumors",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anaplastic Astrocytoma",
        "Diffuse Brainstem Glioma",
        "Glioblastoma Multiforme",
        "High-grade Astrocytoma NOS",
        "Fibrillary Astrocytoma",
        "Low-Grade Astrocytoma, Nos",
        "Pilocytic Astrocytoma",
        "Choroid Plexus Carcinoma",
        "CNS Primary Tumor, Nos",
        "Atypical Teratoid/Rhabdoid Tumor",
        "Medulloblastoma",
        "Supratentorial Primitive Neuroectodermal Tumor",
        "Ependymoma, NOS",
        "Anaplastic Oligodendroglioma",
        "Oligodendroglioma, Nos",
        "CNS Germ Cell Tumor",
        "Pineoblastoma",
        "Diffuse Leptomeningeal Glioneuronal Tumor"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Pediatric Brain Tumor Consortium",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "Up to 40 Years"
      },
      "enrollment_count": 57,
      "start_date": "2023-07-12",
      "completion_date": "2026-04-17",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Palo Alto, California • Washington D.C., District of Columbia + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05934630"
    },
    {
      "nct_id": "NCT04955743",
      "title": "Pembrolizumab and Lenvatinib in Patients With Brain Metastases From Melanoma or Renal Cell Carcinoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Melanoma",
        "Renal Cell Carcinoma",
        "Brain Metastases",
        "PD1/PD-L1 Experienced",
        "Pembrolizumab",
        "Lenvatinib",
        "Metastatic Melanoma"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        },
        {
          "name": "Lenvatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 18,
      "start_date": "2022-02-09",
      "completion_date": "2025-05-28",
      "has_results": true,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04955743"
    },
    {
      "nct_id": "NCT00897286",
      "title": "Study of Stored Tumor Samples in Young Patients With Brain Tumors",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "Up to 39 Years"
      },
      "enrollment_count": 139,
      "start_date": "2004-11-30",
      "completion_date": "2025-09-25",
      "has_results": false,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00897286"
    },
    {
      "nct_id": "NCT02045381",
      "title": "Optimization of MRI for Radiation Therapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Liver",
        "Cancer Brain",
        "Cancer Head &Neck",
        "Cancer Pelvis"
      ],
      "interventions": [
        {
          "name": "MRI Group",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 250,
      "start_date": "2013-03-14",
      "completion_date": "2023-02-09",
      "has_results": false,
      "last_update_posted_date": "2025-01-14",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02045381"
    },
    {
      "nct_id": "NCT00492089",
      "title": "Bevacizumab in Reducing CNS Side Effects in Patients Who Have Undergone Radiation Therapy to the Brain for Primary Brain Tumor, Meningioma, or Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adult Anaplastic Astrocytoma",
        "Adult Anaplastic Ependymoma",
        "Adult Anaplastic Meningioma",
        "Adult Anaplastic Oligodendroglioma",
        "Adult Brain Stem Glioma",
        "Adult Central Nervous System Germ Cell Tumor",
        "Adult Choroid Plexus Tumor",
        "Adult Diffuse Astrocytoma",
        "Adult Ependymoma",
        "Adult Grade II Meningioma",
        "Adult Grade III Meningioma",
        "Adult Malignant Hemangiopericytoma",
        "Adult Mixed Glioma",
        "Adult Oligodendroglioma",
        "Adult Papillary Meningioma",
        "Adult Pineocytoma",
        "Malignant Neoplasm",
        "Meningeal Melanocytoma",
        "Radiation Toxicity",
        "Recurrent Adenoid Cystic Carcinoma of the Oral Cavity",
        "Recurrent Adult Brain Tumor",
        "Recurrent Basal Cell Carcinoma of the Lip",
        "Recurrent Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity",
        "Recurrent Inverted Papilloma of the Paranasal Sinus and Nasal Cavity",
        "Recurrent Lymphoepithelioma of the Nasopharynx",
        "Recurrent Lymphoepithelioma of the Oropharynx",
        "Recurrent Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity",
        "Recurrent Mucoepidermoid Carcinoma of the Oral Cavity",
        "Recurrent Salivary Gland Cancer",
        "Recurrent Squamous Cell Carcinoma of the Hypopharynx",
        "Recurrent Squamous Cell Carcinoma of the Larynx",
        "Recurrent Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Recurrent Squamous Cell Carcinoma of the Nasopharynx",
        "Recurrent Squamous Cell Carcinoma of the Oropharynx",
        "Recurrent Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity",
        "Recurrent Verrucous Carcinoma of the Larynx",
        "Recurrent Verrucous Carcinoma of the Oral Cavity",
        "Stage I Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage I Basal Cell Carcinoma of the Lip",
        "Stage I Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity",
        "Stage I Inverted Papilloma of the Paranasal Sinus and Nasal Cavity",
        "Stage I Lymphoepithelioma of the Nasopharynx",
        "Stage I Lymphoepithelioma of the Oropharynx",
        "Stage I Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity",
        "Stage I Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage I Salivary Gland Cancer",
        "Stage I Squamous Cell Carcinoma of the Hypopharynx",
        "Stage I Squamous Cell Carcinoma of the Larynx",
        "Stage I Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage I Squamous Cell Carcinoma of the Nasopharynx",
        "Stage I Squamous Cell Carcinoma of the Oropharynx",
        "Stage I Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity",
        "Stage I Verrucous Carcinoma of the Larynx",
        "Stage I Verrucous Carcinoma of the Oral Cavity",
        "Stage III Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage III Basal Cell Carcinoma of the Lip",
        "Stage III Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity",
        "Stage III Inverted Papilloma of the Paranasal Sinus and Nasal Cavity",
        "Stage III Lymphoepithelioma of the Nasopharynx",
        "Stage III Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity",
        "Stage III Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage III Salivary Gland Cancer",
        "Stage III Squamous Cell Carcinoma of the Hypopharynx",
        "Stage III Squamous Cell Carcinoma of the Larynx",
        "Stage III Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage III Squamous Cell Carcinoma of the Nasopharynx",
        "Stage III Squamous Cell Carcinoma of the Oropharynx",
        "Stage III Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity",
        "Stage III Verrucous Carcinoma of the Larynx",
        "Stage III Verrucous Carcinoma of the Oral Cavity",
        "Stage IV Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage IV Basal Cell Carcinoma of the Lip",
        "Stage IV Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity",
        "Stage IV Inverted Papilloma of the Paranasal Sinus and Nasal Cavity",
        "Stage IV Lymphoepithelioma of the Nasopharynx",
        "Stage IV Lymphoepithelioma of the Oropharynx",
        "Stage IV Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity",
        "Stage IV Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage IV Salivary Gland Cancer",
        "Stage IV Squamous Cell Carcinoma of the Hypopharynx",
        "Stage IV Squamous Cell Carcinoma of the Larynx",
        "Stage IV Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage IV Squamous Cell Carcinoma of the Nasopharynx",
        "Stage IV Squamous Cell Carcinoma of the Oropharynx",
        "Stage IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity",
        "Stage IV Verrucous Carcinoma of the Larynx",
        "Stage IV Verrucous Carcinoma of the Oral Cavity"
      ],
      "interventions": [
        {
          "name": "bevacizumab",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "magnetic resonance imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        }
      ],
      "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": 11,
      "start_date": "2007-06",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2014-05-09",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00492089"
    },
    {
      "nct_id": "NCT04939597",
      "title": "A Study to See if Memantine Protects the Brain During Radiation Therapy Treatment for a Brain Tumor",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Central Nervous System Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cognitive Assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Memantine Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo Administration",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 162,
      "start_date": "2022-05-10",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-10-06T21:56:06.281Z",
      "location_count": 137,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 110 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04939597"
    }
  ]
}