# OnCo record nsabp-b04 (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/nsabp-b04/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "nsabp-b04" ;
  schema:name "NSABP B-04"@en ;
  schema:alternateName "National Surgical Adjuvant Breast and Bowel Project B-04"@en, "NSABP B04"@en ;
  schema:description "The trial that took the radical out of radical mastectomy. Removing the chest muscles and clearing every node did not help women live longer, and neither did removing nodes that had cancer in them but were not causing trouble. It is the first evidence that breast cancer spreads early through the bloodstream rather than marching outward node by node."@en ;
  schema:url <https://onco.cc/trials/nsabp-b04/> ;
  schema:dateModified "2026-09-25"^^xsd:date ;
  schema:citation <https://doi.org/10.1056/NEJMoa020128> ;
  onco:status "positive" ;
  onco:phase "3" ;
  onco:cancers <https://onco.cc/cancers/breast-cancer/>, <https://onco.cc/cancers/breast-hr-positive/>, <https://onco.cc/cancers/breast-her2-positive/>, <https://onco.cc/cancers/tnbc/> ;
  onco:companies <https://onco.cc/companies/nsabp-foundation/>, <https://onco.cc/companies/nrg-oncology/> ;
  onco:terms <https://onco.cc/terms/mastectomy/>, <https://onco.cc/terms/lymphadenectomy/>, <https://onco.cc/terms/axillary-surgery-de-escalation/>, <https://onco.cc/terms/post-mastectomy-radiotherapy/> ;
  onco:trials <https://onco.cc/trials/nsabp-b06/>, <https://onco.cc/trials/nsabp-b32/>, <https://onco.cc/trials/acosog-z0011/> .