# OnCo record katherine (trial). 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/trials/katherine/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "katherine", "NCT01772472" ;
  schema:name "KATHERINE"@en ;
  schema:description "Switching to an ADC after surgery when pre-surgery treatment left cancer behind halved the risk of recurrence and improved survival."@en ;
  schema:url <https://onco.cc/trials/katherine/> ;
  schema:dateModified "2026-09-07"^^xsd:date ;
  schema:citation <https://clinicaltrials.gov/study/NCT01772472> ;
  onco:status "positive" ;
  onco:phase "3" ;
  schema:startDate "2013-04-03" ;
  onco:cancers <https://onco.cc/cancers/breast-her2-positive/>, <https://onco.cc/cancers/her2-positive-early-breast-cancer/> ;
  onco:technologies <https://onco.cc/technologies/adc/> ;
  onco:drugs <https://onco.cc/drugs/trastuzumab-emtansine/>, <https://onco.cc/drugs/trastuzumab/> ;
  onco:companies <https://onco.cc/companies/nsabp-foundation/> ;
  onco:terms <https://onco.cc/terms/pcr/> ;
  onco:people <https://onco.cc/people/eleftherios-mamounas/>, <https://onco.cc/people/charles-geyer/>, <https://onco.cc/people/gunter-von-minckwitz/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-katherine-nejm-2019/> .