# OnCo record psa50 (term). 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/terms/psa50/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "psa50" ;
  schema:name "PSA50 / PSA90 response"@en ;
  schema:alternateName "PSA50 response"@en, "PSA50"@en, "PSA90"@en, "PSA90 response"@en, "50 percent PSA decline"@en, "prostate-specific antigen response rate"@en ;
  schema:description "PSA50 is the share of patients whose PSA falls by at least half on treatment, and PSA90 the share whose PSA falls by 90%."@en ;
  schema:url <https://onco.cc/terms/psa50/> ;
  schema:dateModified "2026-09-06"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Prostate-specific_antigen> ;
  schema:citation <https://doi.org/10.1200/JCO.2015.64.2702>, <https://doi.org/10.1200/jco.2007.12.4487>, <https://doi.org/10.1200/jco.2015.64.2702> ;
  onco:related <https://onco.cc/terms/radiographic-progression-free-survival/>, <https://onco.cc/terms/bipolar-androgen-therapy/> ;
  onco:cancers <https://onco.cc/cancers/prostate/> ;
  onco:terms <https://onco.cc/terms/psa/>, <https://onco.cc/terms/radiographic-progression-free-survival/>, <https://onco.cc/terms/bipolar-androgen-therapy/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-scher-j-clin-oncol/> .