# OnCo record start-a (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/start-a/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "start-a" ;
  schema:name "START-A (UK Standardisation of Breast Radiotherapy, trial A)"@en ;
  schema:alternateName "START A"@en, "UK START trial A"@en ;
  schema:description "START-A is the dose-finding half of the British experiment that shortened breast radiotherapy. By giving thirteen larger treatments over the same five weeks at two different total doses, it measured how sensitive breast cancer is to the size of each dose, and the answer is what made three weeks and later one week possible."@en ;
  schema:url <https://onco.cc/trials/start-a/> ;
  schema:dateModified "2026-09-25"^^xsd:date ;
  schema:citation <https://www.isrctn.com/ISRCTN59368779>, <https://doi.org/10.1016/S1470-2045(13)70386-3> ;
  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:technologies <https://onco.cc/technologies/hypofractionated-radiotherapy/>, <https://onco.cc/technologies/imrt-igrt/> ;
  onco:institutions <https://onco.cc/institutions/icr-london/> ;
  onco:terms <https://onco.cc/terms/hypofractionation/>, <https://onco.cc/terms/alpha-beta-ratio/> ;
  onco:trials <https://onco.cc/trials/start-b/>, <https://onco.cc/trials/fast-trial/>, <https://onco.cc/trials/fast-forward/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-haviland-lancet-oncol/> .