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Kolberg-Liedtke C, Hussein S, Bankfalvi A, Steinborn J, Ting S, Bittner AK, Hoffmann O, Pott B, Hannig CV, Wetzig S, Kolberg HC. The role of Ki67 in involved lymph nodes as a predictive biomarker for response to neoadjuvant chemotherapy in patients with early breast cancer. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e12553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e12553 Background: Neoadjuvant chemotherapy (NACT) is a standard in early breast cancer (EBC) with an unfavorable tumor biology and pathologic complete remission (pCR) after NACT is indicating an improved prognosis. Ki67 is well established as a prognostic and predictive biomarker in early breast cancer and the association of high Ki67-results in breast tumors at the time of initial diagnosis and pCR after NACT is used for decision making for versus against NACT in daily routine in many countries. Data about associations of Ki67 in involved lymph nodes and response to NACT are missing. Methods: We conducted a retrospective analysis among patients in our database who had received NACT for EBC, had lymph node involvement verified by core cut biopsy and available data for pCR, age, estrogen and progesterone receptor (ER, PR) status, HER2neu status, Ki67 in the breast tumor and grading. Patients treated in clinical studies were excluded. Ki67 was measured in the archived material of biopsies from involved lymph nodes and the association between Ki67 in involved lymph nodes and response to neoadjuvant chemotherapy was analyzed. Results: 52 patients were included with regard to the criteria mentioned above, 21 had to be excluded because there was not enough lymph node biopsy material for Ki67 analysis. 7 (22.6) of the remaining 31 patients achieved a pCR and 11 (35.5%) achieved a nodal conversion to ypN0. Median Ki67 was 35% [3%, 85%] in involved lymph nodes and 40% [10%, 90%] in the breast. There was no significant correlation (Spearman Rho) between Ki67 in involved lymph nodes and pCR whereas there was for Ki67 in the breast (p = 0.046). The ROC-analysis resulted in a cut-off of 47% with the highest sensitivity for Ki67 in lymph nodes regarding prediction of nodal conversion. An analysis with a cut-off of Ki67 in involved lymph nodes of 47% predicted a nodal conversion in 60% of the cases (Chi-Square and Fisher’s Exact test; p = 0.0049). Conclusions: Our analysis supports Ki67 as a strong predictive biomarker regarding pCR after neoadjuvant chemotherapy. Although high Ki67 expression in involved lymph nodes is significantly associated with nodal conversion, it does not add clinically meaningful information to Ki67 in the breast.
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Affiliation(s)
| | - Shady Hussein
- Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | - Agnes Bankfalvi
- Department of Pathology, University of Duisburg-Essen, Essen, Germany
| | - Julia Steinborn
- Department of Pathology, University Hospital Essen, Essen, Germany
| | - Saskia Ting
- Institute of Pathology, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Ann-Kathrin Bittner
- Department of Obstetrics and Gynecology, University of Essen, Essen, Germany
| | - Oliver Hoffmann
- Department of Obstetrics and Gynecology, University Hospital Essen, Essen, Germany
| | - Birgit Pott
- Onkologische Gemeinschaftspraxis Bottrop, Bottrop, Germany
| | | | - Sarah Wetzig
- Department of Gynecology and Obstetrics, Marienhospital Bottrop, Bottrop, Germany
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Fasching PA, Hartkopf AD, Gass P, Häberle L, Akpolat-Basci L, Hein A, Volz B, Taran FA, Nabieva N, Pott B, Overkamp F, Einarson H, Hadji P, Tesch H, Ettl J, Lüftner D, Wallwiener M, Müller V, Janni W, Fehm TN, Schneeweiss A, Untch M, Pott D, Lux MP, Geyer T, Liedtke C, Seeger H, Wetzig S, Hartmann A, Schulz-Wendtland R, Belleville E, Wallwiener D, Beckmann MW, Brucker SY, Kolberg HC. Efficacy of neoadjuvant pertuzumab in addition to chemotherapy and trastuzumab in routine clinical treatment of patients with primary breast cancer: a multicentric analysis. Breast Cancer Res Treat 2018; 173:319-328. [PMID: 30324275 DOI: 10.1007/s10549-018-5008-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 10/10/2018] [Indexed: 01/02/2023]
Abstract
PURPOSE Neoadjuvant combination treatment with chemotherapy (CTX), trastuzumab (TZM), and pertuzumab (PTZ) has been shown to result in higher pathological complete response rates (pCR) in comparison with treatment with chemotherapy and trastuzumab (CTX/TZM). This analysis was aimed at real-world validation of these results from prospective randomized trials. METHODS In a retrospective analysis conducted in the PRAEGNANT network, patients were eligible for inclusion if they had either received neoadjuvant therapy with CTX/TZM or chemotherapy, trastuzumab, and pertuzumab (CTX/TZM/PTZ) and subsequently underwent surgery for their primary breast cancer. The effect of the two neoadjuvant regimens on pCR in addition to commonly applicable predictors of pCR was analyzed in 300 patients from three study sites, using logistic regression analyses with treatment arm, age, clinical tumor stage, grading, and hormone receptor status as predictors. RESULTS pCR with complete disappearance of all tumor cells was seen in 30.2% (n = 58) of patients treated with CTX/TZM and in 52.8% (n = 57) of those treated with CTX/TZM/PTZ. CTX/TZM/PTZ was positively associated with pCR (adjusted odds ratio 2.44; 95% CI 1.49-4.02). Mastectomy rates were not influenced by the therapy. CONCLUSIONS The results of clinical trials were confirmed in this dataset of patients who were treated outside of clinical trials in everyday routine work. pCR rates can be improved by 20% with pertuzumab in routine clinical use.
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Affiliation(s)
- Peter A Fasching
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany.
| | - Andreas D Hartkopf
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Paul Gass
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Lothar Häberle
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany.,Biostatistics Unit, Department of Gynecology and Obstetrics, Erlangen University Hospital, Erlangen, Germany
| | | | - Alexander Hein
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Bernhard Volz
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Florin-Andrei Taran
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Naiba Nabieva
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | | | | | - Hanna Einarson
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Peyman Hadji
- Frankfurter Hormon und Osteoporosezentrum Goethestrasse, Goethestr.23, Frankfurt, Germany
| | - Hans Tesch
- Oncology Practice, Bethanien Hospital, Frankfurt am Main, Germany
| | - Johannes Ettl
- Department of Obstetrics and Gynecology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Diana Lüftner
- Department of Hematology, Oncology and Tumor Immunology, Charité University Hospital, Campus Benjamin Franklin, Berlin, Germany
| | - Markus Wallwiener
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
| | - Volkmar Müller
- Department of Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
| | - Wolfgang Janni
- Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
| | - Tanja N Fehm
- Department of Gynecology and Obstetrics, Düsseldorf University Hospital, Düsseldorf, Germany
| | - Andreas Schneeweiss
- National Center for Tumor Diseases and Department of Gynecology and Obstetrics, Heidelberg University Hospital, Heidelberg, Germany
| | - Michael Untch
- Department of Gynecology and Obstetrics, Helios Clinics Berlin-Buch, Berlin, Germany
| | - Dirk Pott
- Onkologische Schwerpunktpraxis Bottrop, Bottrop, Germany
| | - Michael P Lux
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Thomas Geyer
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Cornelia Liedtke
- Department of Gynecology and Breast Center, Charité University Hospital, Campus Mitte, Berlin, Germany
| | - Harald Seeger
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | | | - Arndt Hartmann
- Institute of Pathology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Rüdiger Schulz-Wendtland
- Institute of Diagnostic Radiology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | | | - Diethelm Wallwiener
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstrasse 21-23, 91054, Erlangen, Germany
| | - Sara Y Brucker
- Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
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