RT Journal Article
SR Electronic
T1 HER2 Equivocal Status in Early Breast Cancer Is Not Associated with Higher Risk of Recurrence
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 3537
OP 3540
VO 36
IS 7
A1 CARMEN CRISCITIELLO
A1 VINCENZO BAGNARDI
A1 GIUSEPPE VIALE
A1 DAVIDE DISALVATORE
A1 NICOLE ROTMENSZ
A1 ANGELA ESPOSITO
A1 ARON GOLDHIRSCH
A1 GIUSEPPE CURIGLIANO
YR 2016
UL http://ar.iiarjournals.org/content/36/7/3537.abstract
AB 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.