1. Molecular apocrine tumours in EORTC 10994/BIG 1-00 phase III study: pathological response after neoadjuvant chemotherapy and clinical outcomes
- Author
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Richard Iggo, Jean-Michel Picquenot, Denis Larsimont, Véronique Becette, Jonas Bergh, Gaëtan MacGrogan, Jeremy Thomas, Olivier Kerdraon, Leen Slaets, David Cameron, Fanny Pommeret, C. Poncet, Jean-Christophe Tille, Frédéric Bibeau, Hervé Bonnefoi, Alexandre Bodmer, Jean-Pierre Ghnassia, Thomas Grellety, Donnat, Martin, Validation et identification de nouvelles cibles en oncologie (VINCO), Institut Bergonié [Bordeaux], UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), CIC Bordeaux, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de pathologie, UNICANCER-UNICANCER, UNICANCER, European Organisation for Research and Treatment of Cancer [Bruxelles] (EORTC), European Cancer Organisation [Bruxelles] (ECCO), Actions for OnCogenesis understanding and Target Identification in ONcology (ACTION), Institut Jules Bordet [Bruxelles], Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), Hôpital René HUGUENIN (Saint-Cloud), Centre René Gauducheau, CRLCC René Gauducheau, Institut de Recherche en Cancérologie de Montpellier (IRCM - U1194 Inserm - UM), CRLCC Val d'Aurelle - Paul Lamarque-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Centre Paul Strauss, CRLCC Paul Strauss, Centre de Lutte Contre le Cancer Henri Becquerel Normandie Rouen (CLCC Henri Becquerel), Cancer Research UK Edinburgh Centre [Edinburgh, UK], University of Edinburgh-MRC Institute of Genetics and Molecular Medicine [Edinburgh] (IGMM), University of Edinburgh-Medical Research Council-Medical Research Council, Hôpitaux Universitaires de Genève (HUG), Department of Oncology-Pathology [Karolinska Institutet], Karolinska Institutet [Stockholm], Bordeaux PharmacoEpi, Inserm CIC1401, Université de Bordeaux, Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Bergonié [Bordeaux], UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Bordeaux Segalen - Bordeaux 2-Institut Bergonié [Bordeaux], and Swiss Group for Clinical Cancer Research (SAKK)
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Oncology ,Cancer Research ,medicine.medical_specialty ,Receptor, ErbB-2 ,Concordance ,medicine.medical_treatment ,Breast Neoplasms ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,ddc:616.07 ,Disease-Free Survival ,Article ,03 medical and health sciences ,Breast cancer ,0302 clinical medicine ,[SDV.CAN] Life Sciences [q-bio]/Cancer ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Survival rate ,Chemotherapy ,business.industry ,Gene Expression Profiling ,Apocrine ,medicine.disease ,Immunohistochemistry ,Subtyping ,3. Good health ,Cancérologie ,ErbB Receptors ,Survival Rate ,Clinical trial ,Biological sciences ,Treatment Outcome ,Receptors, Estrogen ,Chemotherapy, Adjuvant ,Receptors, Androgen ,[SDV.SP.PHARMA] Life Sciences [q-bio]/Pharmaceutical sciences/Pharmacology ,030220 oncology & carcinogenesis ,[SDV.SP.PHARMA]Life Sciences [q-bio]/Pharmaceutical sciences/Pharmacology ,Female ,Receptors, Progesterone ,business - Abstract
Background: We explored, within the EORTC10994 study, the outcomes for patients with molecular apocrine (MA) breast cancer, and defined immunohistochemistry (IHC) as androgen-receptor (AR) positive, oestrogen (ER) and progesterone (PR) negative. We also assessed the concordance between IHC and gene expression arrays (GEA) in the identification of MA cancers. Methods: Centrally assessed biopsies for AR, ER, PR, HER2 and Ki67 by IHC were classified into six subtypes: MA, triple-negative (TN) basal-like, luminal A, luminal B HER2 negative, luminal B HER2 positive and “other”. The two main objectives were the pCR rates and survival outcomes in the overall MA subtype (and further divided by HER2 status) and the remaining five subtypes. Results: IHC subtyping was obtained in 846 eligible patients. Ninety-three (11%) tumours were classified as the MA subtype. Both IHC and GEA data were available for 64 patients. In this subset, IHC concordance was 88.3% in identifying MA tumours compared with GEA. Within the MA subtype, pCR was observed in 33.3% of the patients (95% CI: 29.4–43.9) and the 5-year recurrence-free interval was 59.2% (95% CI: 48.2–68.6). Patients with MA and TN basal-like tumours have lower survival outcomes. Conclusions: Irrespective of their HER2 status, the prognosis for MA tumours remains poor and adjuvant trials evaluating anti-androgens should be considered., SCOPUS: ar.j, info:eu-repo/semantics/published
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- 2019