# OnCo record comet-dcis (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/comet-dcis/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "comet-dcis", "NCT02926911" ;
  schema:name "COMET (Comparison of Operative versus Monitoring and Endocrine Therapy)"@en ;
  schema:alternateName "COMET"@en, "AFT-25"@en ;
  schema:description "COMET asked whether women with low-risk DCIS could safely be watched rather than operated on; after two years the rate of invasive cancer in the monitored group was no worse than with surgery, so careful monitoring is now a reasonable choice for some women."@en ;
  schema:url <https://onco.cc/trials/comet-dcis/> ;
  schema:dateModified "2026-09-17"^^xsd:date ;
  schema:citation <https://clinicaltrials.gov/study/NCT02926911> ;
  onco:status "positive" ;
  onco:tag "subtype-trials" ;
  onco:phase "3" ;
  onco:cancers <https://onco.cc/cancers/ductal-carcinoma-in-situ/>, <https://onco.cc/cancers/breast-cancer/> ;
  onco:drugs <https://onco.cc/drugs/tamoxifen/>, <https://onco.cc/drugs/letrozole/> ;
  onco:people <https://onco.cc/people/shelley-hwang/> .