# OnCo record idea-reg-vitamin-d-digestive-cancer-biomarker-trial (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-reg-vitamin-d-digestive-cancer-biomarker-trial/>
  a schema:CreativeWork ;
  onco:kind "idea" ;
  schema:identifier "idea-reg-vitamin-d-digestive-cancer-biomarker-trial" ;
  schema:name "A biomarker-directed trial of vitamin D after surgery for digestive tract cancers"@en ;
  schema:description "A Japanese trial found vitamin D supplements did not help everyone after digestive cancer surgery, but appeared to help a subgroup identified by a tumour marker. That subgroup deserves its own trial."@en ;
  schema:url <https://onco.cc/ideas/idea-reg-vitamin-d-digestive-cancer-biomarker-trial/> ;
  schema:dateModified "2026-09-08"^^xsd:date ;
  schema:citation <https://doi.org/10.3332/ecancer.2014.442> ;
  onco:cancers <https://onco.cc/cancers/colorectal/>, <https://onco.cc/cancers/gastric/>, <https://onco.cc/cancers/esophageal/> ;
  onco:targets <https://onco.cc/targets/tp53/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-generic-repurposing/>, <https://onco.cc/bottlenecks/b-biomarker-validation/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-pantziarka-ecancermedicalscience/> .