# OnCo record cellsearch-ctc-count (technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/technologies/cellsearch-ctc-count/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "cellsearch-ctc-count" ;
  schema:name "CellSearch circulating tumour cell count"@en ;
  schema:alternateName "CellSearch"@en, "CTC enumeration"@en, "circulating tumour cell count"@en ;
  schema:description "The only regulator-cleared blood test that counts whole cancer cells; five or more cells in a small tube of blood marks a worse outlook in metastatic breast, prostate and bowel cancer, though changing treatment on the count alone has not helped patients."@en ;
  schema:url <https://onco.cc/technologies/cellsearch-ctc-count/> ;
  schema:dateModified "2026-09-17"^^xsd:date ;
  schema:citation <https://doi.org/10.1056/NEJMoa040766>, <https://www.cellsearchctc.com> ;
  onco:status "approved" ;
  onco:cancers <https://onco.cc/cancers/breast-cancer/>, <https://onco.cc/cancers/breast-hr-positive/>, <https://onco.cc/cancers/prostate/>, <https://onco.cc/cancers/colorectal/>, <https://onco.cc/cancers/metastatic-cancer/> ;
  onco:sections <https://onco.cc/fronts/diagnostics/> ;
  onco:technologies <https://onco.cc/technologies/ctc-capture/>, <https://onco.cc/technologies/liquid-biopsy/>, <https://onco.cc/technologies/parsortix-ctc-harvest/> ;
  onco:companies <https://onco.cc/companies/menarini-silicon-biosystems/> ;
  onco:terms <https://onco.cc/terms/ctdna/>, <https://onco.cc/terms/ar-v7/> .