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Current Oncology
Volume 22
Issue s1
10.3747/co.22.2328
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Current Oncology is published by MDPI from Volume 28 Issue 1 (2021). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Multimed Inc..
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Article

A Canadian National Expert Consensus on Neoadjuvant Therapy for Breast Cancer: Linking Practice to Evidence and Beyond

by
C.E. Simmons
1,*,
S. Hogeveen
2,
R. Leonard
1,
Y. Rajmohan
1,
D. Han
2,
A. Wong
2,
J. Lee
3,
M. Brackstone
4,
J.F. Boileau
5,
R. Dinniwell
2,
S. Gandhi
6 and
the Canadian Locally Advanced Breast Cancer National Consensus Group
1
Division of Medical Oncology, BC Cancer Agency, Vancouver, BC, Canada
2
Division of Medical Oncology, St. Michael’s Hospital, Toronto, ON, Canada
3
Division of Radiation Oncology, Sunnybrook Odette Cancer Centre, Toronto, ON, Canada
4
Division of Surgical Oncology, London Health Sciences Centre, London, ON, Canada
5
Division of Surgical Oncology, Jewish General Hospital, Montreal, QC, Canada
6
Division of Medical Oncology, Sunnybrook Odette Cancer Centre, Toronto, ON, Canada
*
Author to whom correspondence should be addressed.
Curr. Oncol. 2015, 22(s1), 43-53; https://doi.org/10.3747/co.22.2328
Submission received: 9 December 2014 / Revised: 6 January 2015 / Accepted: 3 February 2015 / Published: 1 March 2015

Abstract

Background: Use of the neoadjuvant approach to treat breast cancer patients has increased since the early 2000s, but the overall pathway of care for such patients can be highly variable. The aim of our project was to establish a multidisciplinary consensus among clinicians with expertise in neoadjuvant therapy (nat) for breast cancer and to determine if that consensus reflects published methods used in randomized controlled trials (rcts) in this area. Methods: A modified Delphi protocol, which used iterative surveys administered to 85 experts across Canada, was established to obtain expert consensus concerning all aspects of the care pathway for patients undergoing nat for breast cancer. All rcts published between January 1, 1967, and December 1, 2012, were systematically reviewed. Data extracted from the rcts were analyzed to determine if the methods used matched the expert consensus for specific areas of nat management. A scoring system determined the strength of the agreement between the literature and the expert consensus. Results: Consensus was achieved for all areas of the pathway of care for patients undergoing nat for breast cancer, with the exception of the role of magnetic resonance imaging in the pre-treatment or preoperative setting. The levels of agreement between the consensus statements and the published rcts varied, primarily because specific aspects of the pathway of care were not well described in the reviewed literature. Conclusions: A true consensus of expert opinion concerning the pathway of care appropriate for patients receiving nat for breast cancer has been achieved. A review of the literature illuminated gaps in the evidence about some elements of nat management. Where evidence is available, agreement with expert opinion is strong overall. Our study is unique in its approach to establishing consensus among medical experts in this field and has established a pathway of care that can be applied in practice for patients receiving nat.
Keywords: breast cancer; locally advanced breast cancer; neoadjuvant chemotherapy; neoadjuvant endocrine therapy; consensus; pathway of care breast cancer; locally advanced breast cancer; neoadjuvant chemotherapy; neoadjuvant endocrine therapy; consensus; pathway of care

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MDPI and ACS Style

Simmons, C.E.; Hogeveen, S.; Leonard, R.; Rajmohan, Y.; Han, D.; Wong, A.; Lee, J.; Brackstone, M.; Boileau, J.F.; Dinniwell, R.; et al. A Canadian National Expert Consensus on Neoadjuvant Therapy for Breast Cancer: Linking Practice to Evidence and Beyond. Curr. Oncol. 2015, 22, 43-53. https://doi.org/10.3747/co.22.2328

AMA Style

Simmons CE, Hogeveen S, Leonard R, Rajmohan Y, Han D, Wong A, Lee J, Brackstone M, Boileau JF, Dinniwell R, et al. A Canadian National Expert Consensus on Neoadjuvant Therapy for Breast Cancer: Linking Practice to Evidence and Beyond. Current Oncology. 2015; 22(s1):43-53. https://doi.org/10.3747/co.22.2328

Chicago/Turabian Style

Simmons, C.E., S. Hogeveen, R. Leonard, Y. Rajmohan, D. Han, A. Wong, J. Lee, M. Brackstone, J.F. Boileau, R. Dinniwell, and et al. 2015. "A Canadian National Expert Consensus on Neoadjuvant Therapy for Breast Cancer: Linking Practice to Evidence and Beyond" Current Oncology 22, no. s1: 43-53. https://doi.org/10.3747/co.22.2328

APA Style

Simmons, C. E., Hogeveen, S., Leonard, R., Rajmohan, Y., Han, D., Wong, A., Lee, J., Brackstone, M., Boileau, J. F., Dinniwell, R., Gandhi, S., & , the Canadian Locally Advanced Breast Cancer National Consensus Group. (2015). A Canadian National Expert Consensus on Neoadjuvant Therapy for Breast Cancer: Linking Practice to Evidence and Beyond. Current Oncology, 22(s1), 43-53. https://doi.org/10.3747/co.22.2328

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