# OnCo record nct04873362 (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/nct04873362/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "nct04873362", "NCT04873362" ;
  schema:name "A Study Evaluating the Efficacy and Safety of Adjuvant Atezolizumab or Placebo and Trastuzumab Emtansine for Participants With HER2-Positive Breast Cancer at High Risk of Recurrence Following Preoperative Therapy"@en ;
  schema:alternateName "Astefania"@en ;
  schema:description "A phase 3 trial of Atezolizumab, Trastuzumab emtansine and Trastuzumab in HER2-positive breast cancer, run by Hoffmann-La Roche, active and no longer recruiting."@en ;
  schema:url <https://onco.cc/trials/nct04873362/> ;
  schema:dateModified "2026-09-16"^^xsd:date ;
  schema:citation <https://clinicaltrials.gov/study/NCT04873362> ;
  onco:status "active" ;
  onco:tag "pipeline", "ctgov-ingest" ;
  onco:phase "3" ;
  schema:startDate "2021-05-04" ;
  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/>, <https://onco.cc/technologies/checkpoint-inhibitor/>, <https://onco.cc/technologies/monoclonal-antibody/> ;
  onco:drugs <https://onco.cc/drugs/atezolizumab/>, <https://onco.cc/drugs/trastuzumab-emtansine/>, <https://onco.cc/drugs/trastuzumab/> ;
  onco:companies <https://onco.cc/companies/flatiron-health/> .