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Prospective Evaluation of Breast-Conserving Surgery Alone in Low-Risk Ductal Carcinoma in Situ (DCIS)
Sponsor: Ontario Clinical Oncology Group (OCOG)
Summary
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)
Official title: Prospective Evaluation of Breast-Conserving Surgery Alone in Low-Risk Ductal Carcinoma in Situ Defined by a Molecular Expression Assay Combined With Clinico-Pathological Features
Key Details
Gender
FEMALE
Age Range
46 Years - Any
Study Type
OBSERVATIONAL
Enrollment
526
Start Date
2022-11-23
Completion Date
2035-11-30
Last Updated
2025-09-25
Healthy Volunteers
No
Conditions
Locations (24)
Arthur J.E. Child Comprehensive Cancer Centre
Calgary, Alberta, Canada
Cross Cancer Institute
Edmonton, Alberta, Canada
BC Cancer - Abbotsford Centre
Abbotsford British Columbia, British Columbia, Canada
BC Cancer - Centre for the North (Prince George)
Prince George, British Columbia, Canada
BC Cancer - Fraser Valley Centre
Surrey, British Columbia, Canada
BC Cancer - Vancouver Centre
Vancouver, British Columbia, Canada
BC Cancer - Victoria
Victoria, British Columbia, Canada
QE II HSC - Nova Scotia Cancer Centre
Halifax, Nova Scotia, Canada
Cape Breton Cancer Centre
Sydney, Nova Scotia, Canada
Royal Victoria Regional Health Centre
Barrie, Ontario, Canada
Juravinski Cancer Centre
Hamilton, Ontario, Canada
London Regional Cancer Program
London, Ontario, Canada
Regional Cancer Care, Thunder Bay Regional Health Sciences Centre
Thunder Bay, Ontario, Canada
Sunnybrook Health Science Centre -Odette Cancer Centre
Toronto, Ontario, Canada
University Health Network - Princess Margaret Cancer Centre
Toronto, Ontario, Canada
Windsor Regional Cancer Centre
Windsor, Ontario, Canada
Hôpital Charles Le Moyne (CISSS de la Montérégie-Centre)
Greenfield Park, Quebec, Canada
CHUM - Centre Hospitalier de L'Université de Montréal
Montreal, Quebec, Canada
Jewish General Hospital
Montreal, Quebec, Canada
McGill University Health Centre
Montreal, Quebec, Canada
Centre intégré de cancérologie du CHU de Québec - Université Laval
Québec, Quebec, Canada
Centre Intégré Universitaire de Santé et de Services Sociaux de la Mauricie- Centre-du-Québec (CIUSSS MCQ) - Trois-Rivières
Trois-Rivières, Quebec, Canada
Allan Blair Cancer Centre
Regina, Saskatchewan, Canada
Saskatoon Cancer Centre
Saskatoon, Saskatchewan, Canada