# OnCo record idea-pu-five-fraction-breast-default (idea). 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/ideas/idea-pu-five-fraction-breast-default/>
  a schema:CreativeWork ;
  onco:kind "idea" ;
  schema:identifier "idea-pu-five-fraction-breast-default" ;
  schema:name "One week of breast radiotherapy in five treatments as the default after surgery"@en ;
  schema:description "A trial of 4,000 people showed that five treatments over one week control breast cancer as well as three weeks, and England's national guideline has offered it as standard since 2023 when the lymph nodes are not treated. In United States hospitals, ten treatments or fewer were used for 11.4 per cent of women with early breast cancer after breast-conserving surgery in 2020 and 2021."@en ;
  schema:url <https://onco.cc/ideas/idea-pu-five-fraction-breast-default/> ;
  schema:dateModified "2026-10-20"^^xsd:date ;
  schema:citation <https://doi.org/10.1016/j.clon.2021.04.016>, <https://www.nice.org.uk/guidance/ng101/chapter/Recommendations>, <https://doi.org/10.1016/j.clbc.2026.06.004>, <https://doi.org/10.1016/j.ijrobp.2020.09.004>, <https://doi.org/10.1001/jamaoncol.2020.0449> ;
  onco:tag "protocol-upgrade", "upgrade:proven-unevenly-used", "evidence:strong", "breast" ;
  onco:related <https://onco.cc/ideas/idea-acc-hypofractionation-default-lmic/>, <https://onco.cc/ideas/idea-cost-hypofractionation-payment/>, <https://onco.cc/ideas/idea-pu-prostate-hypofractionation-default/>, <https://onco.cc/ideas/idea-pu-washing-and-deodorant-during-radiotherapy/> ;
  onco:cancers <https://onco.cc/cancers/breast-cancer/>, <https://onco.cc/cancers/breast-hr-positive/> ;
  onco:sections <https://onco.cc/fronts/radiation/> ;
  onco:technologies <https://onco.cc/technologies/hypofractionated-radiotherapy/>, <https://onco.cc/technologies/radiotherapy-access-gap/> ;
  onco:institutions <https://onco.cc/institutions/nice/> ;
  onco:terms <https://onco.cc/terms/hypofractionation/>, <https://onco.cc/terms/post-mastectomy-radiotherapy/> ;
  onco:trials <https://onco.cc/trials/fast-forward/>, <https://onco.cc/trials/fast-trial/>, <https://onco.cc/trials/start-a/>, <https://onco.cc/trials/start-b/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-knowledge-diffusion/>, <https://onco.cc/bottlenecks/b-incentive-misalignment/>, <https://onco.cc/bottlenecks/b-surgery-radiation-innovation/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-murray-brunt-lancet/>, <https://onco.cc/key-papers/paper-haviland-lancet-oncol/> .