Evaluation of the prognostic and predictive value of HER-1/EGFR in breast cancer patients participating in a randomized study with dose-dense sequential adjuvant chemotherapy

Oncology
Olympia TzaidaPetroula Arapantoni-Dadioti

Abstract

To assess the prognostic and predictive significance of HER-1/EGFR protein levels in high-risk patients with breast cancer treated with dose-dense sequential adjuvant chemotherapy. 595 high-risk breast cancer patients were treated with adjuvant anthracycline-based dose-dense sequential chemotherapy (E-CMF vs. E-T-CMF). Disease-free survival (DFS) was the primary end point. HER-1/EGFR was assessed by immunohistochemistry (IHC) in 312 patients. HER-1/EGFR expression was detected in 54 of 312 patients (17%). Positive expression of HER-1/EGFR was significantly associated with negative receptor status (52 vs. 17%, p < 0.001), worse histological grade (70 vs. 45%, p = 0.001), HER-2 overexpression (46 vs. 27%, p = 0.01) and positive p53 expression (48 vs. 19%, p < 0.001). With a median follow-up of 7 years, the total number of relapses was 105 (34%), and the total number of deaths 69 (22%). The analysis for DFS provides significant evidence that the HER-1/EGFR effect on the risk of disease progression was different according to treatment (interaction p = 0.02). Regarding overall survival, a trend towards a significant difference for an interaction of HER-1/EGFR and treatment was found (p = 0.07). The present study demonstrated a diffe...Continue Reading

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Citations

Nov 26, 2013·Ultrasound in Medicine & Biology·Woo Jung ChoiMin Ji Hong
Feb 10, 2016·Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology·Lyndsay N HarrisUNKNOWN American Society of Clinical Oncology
Jan 1, 2012·Genes·Michael J MonumentStephen L Lessnick
Apr 24, 2016·Clinical Cancer Research : an Official Journal of the American Association for Cancer Research·Ariadna Giró-PerafitaTeresa Puig

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