# OnCo record ki-67-index (biomarker). 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/biomarkers/ki-67-index/>
  a schema:MedicalTest ;
  onco:kind "biomarker" ;
  schema:identifier "ki-67-index" ;
  schema:name "Ki-67 index (proliferation by IHC)"@en ;
  schema:alternateName "Ki-67"@en, "Ki67"@en, "Ki-67 index"@en, "Ki-67 labelling index"@en, "Ki-67 score"@en, "MIB-1 index"@en, "Ki-67 >= 20%"@en, "Ki-67 ≥20%"@en, "proliferation index"@en ;
  schema:description "Ki-67 is the percentage of tumour cells that are dividing. In neuroendocrine tumours it sets the grade; in breast cancer a 20 percent cut-off was briefly a condition of adjuvant abemaciclib, then dropped from the label in 2023."@en ;
  schema:url <https://onco.cc/biomarkers/ki-67-index/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=be4bc0de-0fdc-4d46-8d25-be43c79e6a06> ;
  onco:tag "biomarker", "proliferation" ;
  onco:related <https://onco.cc/biomarkers/er-status/>, <https://onco.cc/biomarkers/pr-status/> ;
  onco:cancers <https://onco.cc/cancers/breast-hr-positive/>, <https://onco.cc/cancers/hr-positive-early-high-risk/>, <https://onco.cc/cancers/neuroendocrine/>, <https://onco.cc/cancers/pancreatic-net/>, <https://onco.cc/cancers/lung-net/> ;
  onco:drugs <https://onco.cc/drugs/abemaciclib/> ;
  onco:terms <https://onco.cc/terms/net-grade-ki67/>, <https://onco.cc/terms/proliferation/>, <https://onco.cc/terms/ihc/> .