Pathological Response in the Breast and Axillary Lymph Nodes after Neoadjuvant Systemic Treatment in Patients with Initially Node-Positive Breast Cancer Correlates with Disease Free Survival: An Exploratory Analysis of the GeparOcto Trial

The conversion of initially histologically confirmed axillary lymph node-positive (pN+) to ypN0 after neoadjuvant systemic treatment (NAST) is an important prognostic factor in breast cancer (BC) patients and may influence surgical de-escalation strategies. We aimed to determine pCR rates in lymph n...

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Veröffentlicht in:Cancers 2022-01, Vol.14 (3), p.521
Hauptverfasser: Gerber, Bernd, Schneeweiss, Andreas, Möbus, Volker, Golatta, Michael, Tesch, Hans, Krug, David, Hanusch, Claus, Denkert, Carsten, Lübbe, Kristina, Heil, Jörg, Huober, Jens, Ataseven, Beyhan, Klare, Peter, Hahn, Markus, Untch, Michael, Kast, Karin, Jackisch, Christian, Thomalla, Jörg, Seither, Fenja, Blohmer, Jens-Uwe, Rhiem, Kerstin, Fasching, Peter A, Nekljudova, Valentina, Loibl, Sibylle, Kühn, Thorsten
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container_title Cancers
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creator Gerber, Bernd
Schneeweiss, Andreas
Möbus, Volker
Golatta, Michael
Tesch, Hans
Krug, David
Hanusch, Claus
Denkert, Carsten
Lübbe, Kristina
Heil, Jörg
Huober, Jens
Ataseven, Beyhan
Klare, Peter
Hahn, Markus
Untch, Michael
Kast, Karin
Jackisch, Christian
Thomalla, Jörg
Seither, Fenja
Blohmer, Jens-Uwe
Rhiem, Kerstin
Fasching, Peter A
Nekljudova, Valentina
Loibl, Sibylle
Kühn, Thorsten
description The conversion of initially histologically confirmed axillary lymph node-positive (pN+) to ypN0 after neoadjuvant systemic treatment (NAST) is an important prognostic factor in breast cancer (BC) patients and may influence surgical de-escalation strategies. We aimed to determine pCR rates in lymph nodes (pCR-LN), the breast (pCR-B), and both (tpCR) in women who present with pN+ BC, to assess predictors for response and the impact of pCR-LN, pCR-B, and tpCR on invasive disease-free survival (iDFS). Retrospective, exploratory analysis of 242 patients with pN+ at diagnosis from the multicentric, randomized GeparOcto trial. Of 242 patients with initially pN+ disease, 134 (55.4%) had a pCR-LN, and 109 (45.0%) a pCR-B. Of the 109 pCR-B patients, 9 (8.3%) patients had involved LN, and 100 (41.3%) patients had tpCR. Those with involved LN still had a bad prognosis. As expected, pCR-B and intrinsic subtypes (TNBC and HER2+) were identified as independent predictors of pCR-LN. pCR-LN (ypN0; hazard ratio 0.42; 95%, CI 0.23-0.75; = 0.0028 for iDFS) was the strongest independent prognostic factor. In initially pN+ patients undergoing NAST, the conversion to ypN0 is of high prognostic value. Surgical axillary staging after NAST is still essential in these patients to offer tailored treatment.
doi_str_mv 10.3390/cancers14030521
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source MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; PubMed Central Open Access
subjects Biopsy
Breast cancer
ErbB-2 protein
Invasiveness
Lymph nodes
Lymphatic system
Mammography
Medical prognosis
Metastasis
Patients
Prognosis
Surgeons
Surgery
Survival
Ultrasonic imaging
title Pathological Response in the Breast and Axillary Lymph Nodes after Neoadjuvant Systemic Treatment in Patients with Initially Node-Positive Breast Cancer Correlates with Disease Free Survival: An Exploratory Analysis of the GeparOcto Trial
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