# OnCo record bcma-expression (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/bcma-expression/>
  a schema:MedicalTest ;
  onco:kind "biomarker" ;
  schema:identifier "bcma-expression" ;
  schema:name "BCMA expression"@en ;
  schema:alternateName "BCMA"@en, "BCMA-positive"@en, "B-cell maturation antigen expression"@en, "TNFRSF17 expression"@en, "soluble BCMA"@en ;
  schema:description "BCMA is the plasma-cell antigen behind the myeloma bispecifics and CAR-T cells. None of their labels requires a BCMA test; expression is near-universal, and loss through BCMA gene deletion is a documented escape route."@en ;
  schema:url <https://onco.cc/biomarkers/bcma-expression/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=54e0f974-ccee-44ea-9254-40e9883cee1e> ;
  onco:tag "biomarker", "surface-antigen", "no-threshold" ;
  onco:related <https://onco.cc/biomarkers/gprc5d-expression/>, <https://onco.cc/biomarkers/fcrh5-expression/>, <https://onco.cc/biomarkers/cd38-expression/> ;
  onco:cancers <https://onco.cc/cancers/multiple-myeloma/>, <https://onco.cc/cancers/myeloma-relapsed-refractory/> ;
  onco:drugs <https://onco.cc/drugs/teclistamab/>, <https://onco.cc/drugs/elranatamab/>, <https://onco.cc/drugs/linvoseltamab/>, <https://onco.cc/drugs/idecabtagene-vicleucel/>, <https://onco.cc/drugs/ciltacabtagene-autoleucel/>, <https://onco.cc/drugs/belantamab-mafodotin/> ;
  onco:terms <https://onco.cc/terms/antigen-escape/> .