# OnCo record iwwd (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/iwwd/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "iwwd" ;
  schema:name "International Watch & Wait Database"@en ;
  schema:alternateName "IWWD"@en ;
  schema:description "The worldwide register of people who kept their rectum after treatment. A quarter of the cancers regrow, almost all within two years and almost all in the bowel wall where they can be found and removed."@en ;
  schema:url <https://onco.cc/trials/iwwd/> ;
  schema:dateModified "2026-09-24"^^xsd:date ;
  schema:citation <https://doi.org/10.1016/S0140-6736(18)31078-X>, <https://www.iwwd.org/> ;
  onco:status "active" ;
  onco:phase "observational" ;
  onco:cancers <https://onco.cc/cancers/colorectal/>, <https://onco.cc/cancers/rectal-cancer/> ;
  onco:technologies <https://onco.cc/technologies/imrt-igrt/> ;
  onco:terms <https://onco.cc/terms/clinical-complete-response/>, <https://onco.cc/terms/pcr/>, <https://onco.cc/terms/chemoradiation/> ;
  onco:trials <https://onco.cc/trials/opra/>, <https://onco.cc/trials/azur-1/> .