# OnCo record stephen-johnston (person). 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/people/stephen-johnston/>
  a schema:Person ;
  onco:kind "person" ;
  schema:identifier "stephen-johnston" ;
  schema:name "Stephen Johnston"@en ;
  schema:description "Chief investigator of monarchE, the trial that added abemaciclib to adjuvant endocrine therapy for high-risk early breast cancer."@en ;
  schema:url <https://onco.cc/people/stephen-johnston/> ;
  schema:dateModified "2026-09-10"^^xsd:date ;
  schema:citation <https://pubmed.ncbi.nlm.nih.gov/?term=Johnston%20SRD%5BAuthor%5D%20abemaciclib> ;
  onco:tag "breast", "trialist" ;
  schema:jobTitle "Professor of Breast Cancer Medicine, Royal Marsden and Institute of Cancer Research" ;
  schema:sameAs <https://orcid.org/0000-0002-9072-2749> ;
  onco:cancers <https://onco.cc/cancers/breast-hr-positive/> ;
  onco:technologies <https://onco.cc/technologies/cdk46-inhibitor/>, <https://onco.cc/technologies/endocrine-therapy/> ;
  onco:targets <https://onco.cc/targets/cdk4-6/>, <https://onco.cc/targets/estrogen-receptor/> ;
  onco:drugs <https://onco.cc/drugs/abemaciclib/> ;
  onco:institutions <https://onco.cc/institutions/royal-marsden/>, <https://onco.cc/institutions/icr-london/> ;
  onco:trials <https://onco.cc/trials/monarche/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-monarche-jco-2020/> ;
  schema:affiliation <https://onco.cc/institutions/royal-marsden/> .