The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy: A Dutch randomized controlled multicentre trial (BOOG 2013-07)

L.M. Roozendaal, J.H. de Wilt, T. van Dalen, J.A. van der Hage, L.J. Strobbe, L.J. Boersma, S.C. Linn, M.B. Lobbes, P.M.P. Poortmans, V. C. G. Tjan-Heijnen, K.K. van de Vijver, A.G. Westenberg, A.G. Kessels, M.L. Smidt, J. de Vries

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Abstract

Background:
Trials failed to demonstrate additional value of completion axillary lymph node dissection in case of limited sentinel lymph node metastases in breast cancer patients undergoing breast conserving therapy. It has been suggested that the low regional recurrence rates in these trials might partially be ascribed to accidental irradiation of part of the axilla by whole breast radiation therapy, which precludes extrapolation of results to mastectomy patients. The aim of the randomized controlled BOOG 2013-07 trial is therefore to investigate whether completion axillary treatment can be safely omitted in sentinel lymph node positive breast cancer patients treated with mastectomy.
Design:
This study is designed as a non-inferiority randomized controlled multicentre trial. Women aged 18 years or older diagnosed with unilateral invasive clinically T1-2 N0 breast cancer who are treated with mastectomy, and who have a maximum of three axillary sentinel lymph nodes containing micro- and/or macrometastases, will be randomized for completion axillary treatment versus no completion axillary treatment. Completion axillary treatment can consist of completion axillary lymph node dissection or axillary radiation therapy. Primary endpoint is regional recurrence rate at 5 years. Based on a 5-year regional recurrence free survival rate of 98 % among controls and 96 % for study subjects, the sample size amounts 439 per arm (including 10 % lost to follow-up), to be able to reject the null hypothesis that the rate for study and control subjects is inferior by at least 5 % with a probability of 0.8. Results will be reported after 5 and 10 years of follow-up.
Discussion:
We hypothesize that completion axillary treatment can be safely omitted in sentinel node positive breast cancer patients undergoing mastectomy. If confirmed, this study will significantly decrease the number of breast cancer patients receiving extensive treatment of the axilla, thereby diminishing the risk of morbidity and improving quality of life, while maintaining excellent regional control and without affecting survival.
Original languageEnglish
Article number610
JournalBMC Cancer
Volume15
DOIs
Publication statusPublished - 2015

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Roozendaal, L.M. ; de Wilt, J.H. ; van Dalen, T. ; van der Hage, J.A. ; Strobbe, L.J. ; Boersma, L.J. ; Linn, S.C. ; Lobbes, M.B. ; Poortmans, P.M.P. ; Tjan-Heijnen, V. C. G. ; van de Vijver, K.K. ; Westenberg, A.G. ; Kessels, A.G. ; Smidt, M.L. ; de Vries, J. / The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy : A Dutch randomized controlled multicentre trial (BOOG 2013-07). In: BMC Cancer. 2015 ; Vol. 15.
@article{6431ef5c0c624037bbdea5aa815a9845,
title = "The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy: A Dutch randomized controlled multicentre trial (BOOG 2013-07)",
abstract = "Background:Trials failed to demonstrate additional value of completion axillary lymph node dissection in case of limited sentinel lymph node metastases in breast cancer patients undergoing breast conserving therapy. It has been suggested that the low regional recurrence rates in these trials might partially be ascribed to accidental irradiation of part of the axilla by whole breast radiation therapy, which precludes extrapolation of results to mastectomy patients. The aim of the randomized controlled BOOG 2013-07 trial is therefore to investigate whether completion axillary treatment can be safely omitted in sentinel lymph node positive breast cancer patients treated with mastectomy.Design:This study is designed as a non-inferiority randomized controlled multicentre trial. Women aged 18 years or older diagnosed with unilateral invasive clinically T1-2 N0 breast cancer who are treated with mastectomy, and who have a maximum of three axillary sentinel lymph nodes containing micro- and/or macrometastases, will be randomized for completion axillary treatment versus no completion axillary treatment. Completion axillary treatment can consist of completion axillary lymph node dissection or axillary radiation therapy. Primary endpoint is regional recurrence rate at 5 years. Based on a 5-year regional recurrence free survival rate of 98 {\%} among controls and 96 {\%} for study subjects, the sample size amounts 439 per arm (including 10 {\%} lost to follow-up), to be able to reject the null hypothesis that the rate for study and control subjects is inferior by at least 5 {\%} with a probability of 0.8. Results will be reported after 5 and 10 years of follow-up.Discussion:We hypothesize that completion axillary treatment can be safely omitted in sentinel node positive breast cancer patients undergoing mastectomy. If confirmed, this study will significantly decrease the number of breast cancer patients receiving extensive treatment of the axilla, thereby diminishing the risk of morbidity and improving quality of life, while maintaining excellent regional control and without affecting survival.",
author = "L.M. Roozendaal and {de Wilt}, J.H. and {van Dalen}, T. and {van der Hage}, J.A. and L.J. Strobbe and L.J. Boersma and S.C. Linn and M.B. Lobbes and P.M.P. Poortmans and Tjan-Heijnen, {V. C. G.} and {van de Vijver}, K.K. and A.G. Westenberg and A.G. Kessels and M.L. Smidt and {de Vries}, J.",
year = "2015",
doi = "10.1186/s12885-015-1613-2",
language = "English",
volume = "15",
journal = "BMC Cancer",
issn = "1471-2407",
publisher = "BioMed Central Ltd.",

}

Roozendaal, LM, de Wilt, JH, van Dalen, T, van der Hage, JA, Strobbe, LJ, Boersma, LJ, Linn, SC, Lobbes, MB, Poortmans, PMP, Tjan-Heijnen, VCG, van de Vijver, KK, Westenberg, AG, Kessels, AG, Smidt, ML & de Vries, J 2015, 'The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy: A Dutch randomized controlled multicentre trial (BOOG 2013-07)', BMC Cancer, vol. 15, 610. https://doi.org/10.1186/s12885-015-1613-2

The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy : A Dutch randomized controlled multicentre trial (BOOG 2013-07). / Roozendaal, L.M.; de Wilt, J.H.; van Dalen, T.; van der Hage, J.A.; Strobbe, L.J.; Boersma, L.J.; Linn, S.C.; Lobbes, M.B.; Poortmans, P.M.P.; Tjan-Heijnen, V. C. G.; van de Vijver, K.K.; Westenberg, A.G.; Kessels, A.G.; Smidt, M.L.; de Vries, J.

In: BMC Cancer, Vol. 15, 610, 2015.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The value of completion axillary treatment in sentinel node positive breast cancer patients undergoing a mastectomy

T2 - A Dutch randomized controlled multicentre trial (BOOG 2013-07)

AU - Roozendaal, L.M.

AU - de Wilt, J.H.

AU - van Dalen, T.

AU - van der Hage, J.A.

AU - Strobbe, L.J.

AU - Boersma, L.J.

AU - Linn, S.C.

AU - Lobbes, M.B.

AU - Poortmans, P.M.P.

AU - Tjan-Heijnen, V. C. G.

AU - van de Vijver, K.K.

AU - Westenberg, A.G.

AU - Kessels, A.G.

AU - Smidt, M.L.

AU - de Vries, J.

PY - 2015

Y1 - 2015

N2 - Background:Trials failed to demonstrate additional value of completion axillary lymph node dissection in case of limited sentinel lymph node metastases in breast cancer patients undergoing breast conserving therapy. It has been suggested that the low regional recurrence rates in these trials might partially be ascribed to accidental irradiation of part of the axilla by whole breast radiation therapy, which precludes extrapolation of results to mastectomy patients. The aim of the randomized controlled BOOG 2013-07 trial is therefore to investigate whether completion axillary treatment can be safely omitted in sentinel lymph node positive breast cancer patients treated with mastectomy.Design:This study is designed as a non-inferiority randomized controlled multicentre trial. Women aged 18 years or older diagnosed with unilateral invasive clinically T1-2 N0 breast cancer who are treated with mastectomy, and who have a maximum of three axillary sentinel lymph nodes containing micro- and/or macrometastases, will be randomized for completion axillary treatment versus no completion axillary treatment. Completion axillary treatment can consist of completion axillary lymph node dissection or axillary radiation therapy. Primary endpoint is regional recurrence rate at 5 years. Based on a 5-year regional recurrence free survival rate of 98 % among controls and 96 % for study subjects, the sample size amounts 439 per arm (including 10 % lost to follow-up), to be able to reject the null hypothesis that the rate for study and control subjects is inferior by at least 5 % with a probability of 0.8. Results will be reported after 5 and 10 years of follow-up.Discussion:We hypothesize that completion axillary treatment can be safely omitted in sentinel node positive breast cancer patients undergoing mastectomy. If confirmed, this study will significantly decrease the number of breast cancer patients receiving extensive treatment of the axilla, thereby diminishing the risk of morbidity and improving quality of life, while maintaining excellent regional control and without affecting survival.

AB - Background:Trials failed to demonstrate additional value of completion axillary lymph node dissection in case of limited sentinel lymph node metastases in breast cancer patients undergoing breast conserving therapy. It has been suggested that the low regional recurrence rates in these trials might partially be ascribed to accidental irradiation of part of the axilla by whole breast radiation therapy, which precludes extrapolation of results to mastectomy patients. The aim of the randomized controlled BOOG 2013-07 trial is therefore to investigate whether completion axillary treatment can be safely omitted in sentinel lymph node positive breast cancer patients treated with mastectomy.Design:This study is designed as a non-inferiority randomized controlled multicentre trial. Women aged 18 years or older diagnosed with unilateral invasive clinically T1-2 N0 breast cancer who are treated with mastectomy, and who have a maximum of three axillary sentinel lymph nodes containing micro- and/or macrometastases, will be randomized for completion axillary treatment versus no completion axillary treatment. Completion axillary treatment can consist of completion axillary lymph node dissection or axillary radiation therapy. Primary endpoint is regional recurrence rate at 5 years. Based on a 5-year regional recurrence free survival rate of 98 % among controls and 96 % for study subjects, the sample size amounts 439 per arm (including 10 % lost to follow-up), to be able to reject the null hypothesis that the rate for study and control subjects is inferior by at least 5 % with a probability of 0.8. Results will be reported after 5 and 10 years of follow-up.Discussion:We hypothesize that completion axillary treatment can be safely omitted in sentinel node positive breast cancer patients undergoing mastectomy. If confirmed, this study will significantly decrease the number of breast cancer patients receiving extensive treatment of the axilla, thereby diminishing the risk of morbidity and improving quality of life, while maintaining excellent regional control and without affecting survival.

U2 - 10.1186/s12885-015-1613-2

DO - 10.1186/s12885-015-1613-2

M3 - Article

VL - 15

JO - BMC Cancer

JF - BMC Cancer

SN - 1471-2407

M1 - 610

ER -