HER2 Equivocal Status in Early Breast Cancer Is Not Associated with Higher Risk of Recurrence.

Abstract:

AIM:The primary aim of the study was to assess the association between risk of recurrence and HER2 equivocal gene status through immunohistochemistry in patients with early breast cancer. PATIENTS AND METHODS:We retrospectively analyzed clinical and pathological data of 455 consecutive patients with early breast cancer (BC) who were HER2(+) and had a HER2/CEP17 ratio <2.0, who underwent surgery at the European Institute of Oncology after 2007. The role of HER2/CEP17 ratio on recurrence-free survival was assessed with univariate and multivariate Cox regression models. RESULTS:We found no significant association between risk of recurrence and HER2 equivocal testing in patients with early breast cancer. In subgroup analysis, a significant interaction between HER2/CEP17 ratio and nodal involvement was observed (p=0.02). CONCLUSION:Patients with HER2 equivocal status have no significantly higher risk of recurrence.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Criscitiello C,Bagnardi V,Viale G,Disalvatore D,Rotmensz N,Esposito A,Goldhirsch A,Curigliano G

subject

Has Abstract

pub_date

2016-07-01 00:00:00

pages

3537-40

issue

7

eissn

0250-7005

issn

1791-7530

pii

36/7/3537

journal_volume

36

pub_type

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