# OnCo record formestane (drug). 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/drugs/formestane/>
  a schema:Drug ;
  onco:kind "drug" ;
  schema:identifier "formestane" ;
  schema:name "Formestane"@en ;
  schema:alternateName "4-Hydroxyandrostenedione"@en, "4-OHA"@en, "Lentaron" ;
  schema:description "Formestane, launched in Europe in 1993, was the first selective aromatase inhibitor for advanced breast cancer, given by injection every two weeks; oral exemestane and the non-steroidal inhibitors made it redundant within a few years."@en ;
  schema:url <https://onco.cc/drugs/formestane/> ;
  schema:dateModified "2026-09-08"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Formestane> ;
  schema:citation <https://en.wikipedia.org/wiki/Formestane>, <https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL1201310> ;
  onco:status "historic" ;
  onco:tag "gap-fill", "chembl-universe" ;
  onco:modality "Steroidal aromatase inactivator, fortnightly intramuscular injection" ;
  onco:cancers <https://onco.cc/cancers/breast-hr-positive/> ;
  onco:technologies <https://onco.cc/technologies/endocrine-therapy/> ;
  onco:targets <https://onco.cc/targets/aromatase/> ;
  onco:drugs <https://onco.cc/drugs/exemestane/> .