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Study identifier: NCT04797299 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Prospective Evaluation of Breast-Conserving Surgery Alone in Low-Risk Ductal Carcinoma in Situ (DCIS)

Condition: DCIS  ·  Sponsor: Ontario Clinical Oncology Group (OCOG)

PhaseN/A
Planned participants526
Who can joinFemale, 46 Years to no upper limit
Healthy volunteersNo

About this study

To evaluate whether the combination of clinicopathological factors and the use of the Oncotype DX DCIS score can avoid radiation in women with low risk DCIS who have had breast conserving surgery (BCS)

This description comes directly from the study's public registry record.

Talk to the study team

Brittany Speller  ·  905-527-2299  ·  spelleb@mcmaster.ca

Daryl Hannah Soloman  ·  905-527-2299  ·  solomd5@mcmaster.ca

Always discuss trial participation with your own doctor first.

Locations (25)

Arthur J.E. Child Comprehensive Cancer CentreCalgary, Alberta, CanadaRecruiting
Cross Cancer InstituteEdmonton, Alberta, CanadaRecruiting
BC Cancer - Abbotsford CentreAbbotsford British Columbia, British Columbia, CanadaRecruiting
BC Cancer - Centre for the North (Prince George)Prince George, British Columbia, CanadaRecruiting
BC Cancer - Fraser Valley CentreSurrey, British Columbia, CanadaRecruiting
BC Cancer - Vancouver CentreVancouver, British Columbia, CanadaRecruiting
BC Cancer - VictoriaVictoria, British Columbia, CanadaRecruiting
CancerCare ManitobaWinnipeg, Manitoba, CanadaRecruiting
QE II HSC - Nova Scotia Cancer CentreHalifax, Nova Scotia, CanadaRecruiting
Cape Breton Cancer CentreSydney, Nova Scotia, CanadaRecruiting
Royal Victoria Regional Health CentreBarrie, Ontario, CanadaRecruiting
Juravinski Cancer CentreHamilton, Ontario, CanadaRecruiting

+ 13 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT04797299