{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?nctId=NCT04483778",
    "query": {
      "nctId": "NCT04483778"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-19T17:32:24.808Z",
  "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": "NCT04483778",
      "title": "B7H3 CAR T Cell Immunotherapy for Recurrent/Refractory Solid Tumors in Children and Young Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pediatric Solid Tumor",
        "Germ Cell Tumor",
        "Retinoblastoma",
        "Hepatoblastoma",
        "Wilms Tumor",
        "Rhabdoid Tumor",
        "Carcinoma",
        "Osteosarcoma",
        "Ewing Sarcoma",
        "Rhabdomyosarcoma",
        "Synovial Sarcoma",
        "Clear Cell Sarcoma",
        "Malignant Peripheral Nerve Sheath Tumors",
        "Desmoplastic Small Round Cell Tumor",
        "Soft Tissue Sarcoma",
        "Neuroblastoma",
        "Melanoma"
      ],
      "interventions": [
        {
          "name": "second generation 4-1BBζ B7H3-EGFRt-DHFR",
          "type": "BIOLOGICAL"
        },
        {
          "name": "second generation 4-1BBζ B7H3-EGFRt-DHFR(selected) and a second generation 4-1BBζ CD19-Her2tG",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pembrolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Seattle Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "0 Years to 26 Years"
      },
      "enrollment_count": 68,
      "start_date": "2020-07-13",
      "completion_date": "2040-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-28",
      "last_synced_at": "2026-09-19T17:32:24.808Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04483778"
    }
  ]
}