Journal article

The BRCA1ness signature is associated significantly with response to PARP inhibitor treatment versus control in the I-SPY 2 randomized neoadjuvant setting

TM Severson, DM Wolf, C Yau, J Peeters, D Wehkam, PC Schouten, SF Chin, IJ Majewski, M Michaut, A Bosma, B Pereira, T Bismeijer, L Wessels, C Caldas, R Bernards, IM Simon, AM Glas, S Linn, L van't Veer

Breast Cancer Research | BMC | Published : 2017

Open access

Abstract

Background: Patients with BRCA1-like tumors correlate with improved response to DNA double-strand break-inducing therapy. A gene expression-based classifier was developed to distinguish between BRCA1-like and non-BRCA1-like tumors. We hypothesized that these tumors may also be more sensitive to PARP inhibitors than standard treatments. Methods: A diagnostic gene expression signature (BRCA1ness) was developed using a centroid model with 128 triple-negative breast cancer samples from the EU FP7 RATHER project. This BRCA1ness signature was then tested in HER2-negative patients (n=116) from the I-SPY 2 TRIAL who received an oral PARP inhibitor veliparib in combination with carboplatin (V-C), or ..

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University of Melbourne Researchers