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Möbus V, Lück HJ, Ladda E, Klare P, Engels K, Schmidt M, Schneeweiss A, Grischke EM, Wachsmann G, Forstbauer H, Untch M, Marmé F, Blohmer JU, Jackisch C, Huober J, Stickeler E, Reinisch M, Link T, Sinn B, Janni W, Denkert C, Seiler S, Solbach C, Schmatloch S, Rey J, Loibl S. GAIN2 trial overall survival with intense versus tailored dose dense chemotherapy in early breast cancer. NPJ Breast Cancer 2024; 10:66. [PMID: 39080281 PMCID: PMC11289103 DOI: 10.1038/s41523-024-00675-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 07/14/2024] [Indexed: 08/02/2024] Open
Abstract
GAIN-2 trial evaluated the optimal intense dose-dense (idd) strategy for high-risk early breast cancer. This study reports the secondary endpoints pathological complete response (pCR) and overall survival (OS). Patients (n = 2887) were randomized 1:1 between idd epirubicin, nab-paclitaxel, and cyclophosphamide (iddEnPC) versus leukocyte nadir-based tailored regimen of dose-dense EC and docetaxel (dtEC-dtD) as adjuvant therapy, with neoadjuvant therapy allowed after amendment. At median follow-up of 6.5 years (overall cohort) and 5.7 years (neoadjuvant cohort, N = 593), both regimens showed comparable 5-year OS rates (iddEnPC 90.8%, dtEC-dtD 90.0%, p = 0.320). In the neoadjuvant setting, iddEnPC yielded a higher pCR rate than dtEC-dtD (51.2% vs. 42.6%, p = 0.045). Patients achieving pCR had significantly improved 5-year iDFS (88.7% vs. 70.1%, HR 0.33, p < 0.001) and OS rates (93.9% vs. 83.1%, HR 0.32, p < 0.001), but OS outcomes were comparable regardless of pCR status. Thus, iddEnPC demonstrates superior pCR rates compared to dtEC-dtD, yet with comparable survival outcomes.
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Affiliation(s)
- Volker Möbus
- Medizinische Klinik II, Abt. Hämatologie/Onkologie, Universitätsklinikum Frankfurt, Frankfurt, Germany
| | | | | | - Peter Klare
- Praxisklinik Krebsheilkunde für Frauen, Berlin, Germany
| | - Knut Engels
- Zentrum für Pathologie, Zytologie und Molekularpathologie Neuss, Neuss, Germany
| | | | - Andreas Schneeweiss
- Nationales Centrum für Tumorerkrankungen, Universitätsklinikum und Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | | | | | - Helmut Forstbauer
- GOSPL - Gesellschaft für onkologische Studien Troisdorf, Troisdorf, Germany
| | | | | | - Jens-Uwe Blohmer
- Gynäkologie mit Brustzentrum, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | | | - Elmar Stickeler
- Department of Obstetrics and Gynecology, Center for Integrated Oncology (CIO Aachen, Bonn, Cologne, Düsseldorf), University Hospital of RWTH Aachen, Aachen, Germany
| | - Mattea Reinisch
- Gynäkologie mit Brustzentrum, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Kliniken Essen-Mitte, Essen, Germany
| | - Theresa Link
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Germany
| | - Bruno Sinn
- Institut für Pathologie, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Carsten Denkert
- Institute of Pathology, Philipps University Marburg, Marburg University Hospital (UKGM), and University Cancer Center Frankfurt-Marburg (UCT), Marburg, Germany
| | | | | | | | - Julia Rey
- German Breast Group, Neu-Isenburg, Germany
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Matikas A, Möbus V, Greil R, Andersson A, Steger GG, Untch M, Fornander T, Malmström P, Schmatloch S, Johansson H, Hellström M, Brandberg Y, Gnant M, Loibl S, Foukakis T, Bergh J. Tailored Dose-Dense Versus Standard Adjuvant Chemotherapy for High-Risk Early Breast Cancer: End-of-Study Results of the Randomized PANTHER Trial. J Clin Oncol 2024:JCO2400178. [PMID: 39018515 DOI: 10.1200/jco.24.00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/04/2024] [Accepted: 04/05/2024] [Indexed: 07/19/2024] Open
Abstract
Clinical trials frequently include multiple end points that mature at different times. The initial report, typically based on the primary end point, may be published when key planned co-primary or secondary analyses are not yet available. Clinical Trial Updates provide an opportunity to disseminate additional results from studies, published in JCO or elsewhere, for which the primary end point has already been reported.Although dose-dense adjuvant chemotherapy administered once every 2 weeks leads to superior outcomes compared with standard regimens once every 3 weeks, the observed improvement is largely limited to studies using the suboptimal paclitaxel schedule once every 3 weeks as control. PANTHER is an international phase III trial which compared sequential epirubicin/cyclophosphamide and docetaxel administered either once every 2 or once every 3 weeks, with tailored dosing at the dose-dense schedule according to hematologic toxicity. In this end-of-study analysis, the median follow-up was 10.3 years. Compared with standard adjuvant chemotherapy, dose-dense treatment improved breast cancer recurrence-free survival (hazard ratio [HR], 0.80 [95% CI, 0.65 to 0.98]; P = .030), event-free survival (HR, 0.78 [95% CI, 0.65 to 0.94]; P = .009), and distant disease-free survival (HR, 0.79 [95% CI, 0.64 to 0.98]; P = .030) while the improvement in overall survival was not statistically significant (HR, 0.82 [95% CI, 0.65 to 1.04]; P = .109). To our knowledge, this is the first trial that confirms the benefit of a dose-dense regimen over a control regimen containing docetaxel once every 3 weeks.
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Affiliation(s)
- Alexios Matikas
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
- Breast Center, Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Volker Möbus
- Department of Medicine II, Hematology & Oncology, University of Frankfurt, Frankfurt, Germany
| | - Richard Greil
- 3rd Medical Department, Paracelsus Medical University and Salzburg Cancer Research Institute, Cancer Cluster Salzburg and AGMT, Salzburg, Austria
| | - Anne Andersson
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå, Sweden
| | - Günther G Steger
- Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | | | - Tommy Fornander
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
| | - Per Malmström
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Haematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | | | - Hemming Johansson
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
| | - Mats Hellström
- Breast Center, Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Yvonne Brandberg
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
| | - Michael Gnant
- Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | | | - Theodoros Foukakis
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
- Breast Center, Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Jonas Bergh
- Oncology/Pathology Department, Karolinska Institutet, Stockholm, Sweden
- Breast Center, Karolinska Comprehensive Cancer Center, Stockholm, Sweden
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Matikas A, Bergh J. Breast cancer during pregnancy-The oncologist's point of view. Acta Obstet Gynecol Scand 2024; 103:775-778. [PMID: 37983830 PMCID: PMC10993346 DOI: 10.1111/aogs.14729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
Breast cancer is the most common malignancy diagnosed during or directly after pregnancy. Differences in pathogenesis and prognosis identify two distinct patient groups, those with breast cancer during pregnancy and those with postpartum breast cancer which, for reasons not completely understood, is associated with worse outcomes. Compared with breast cancer in the non-pregnant patient, several limitations in terms of both local and systemic therapy are applied to limit fetal harm. Treatment is nevertheless delivered with curative intent, therefore avoiding harmful delays in therapy initiation, unnecessary therapy de-escalation or chemotherapy dose modifications is strongly recommended. In this short commentary, we briefly review current evidence and treatment guidelines and provide recommendations for optimal oncologic management of pregnancy-related breast cancer.
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Affiliation(s)
- Alexios Matikas
- Oncology/Pathology DepartmentKarolinska InstitutetStockholmSweden
- Breast Center, Karolinska Comprehensive Cancer Center and Karolinska University HospitalStockholmSweden
| | - Jonas Bergh
- Oncology/Pathology DepartmentKarolinska InstitutetStockholmSweden
- Breast Center, Karolinska Comprehensive Cancer Center and Karolinska University HospitalStockholmSweden
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Cui R, Wang C, Li T, Hua J, Zhao T, Ren L, Wang Y, Li Y. Carboxypeptidase N1 is anticipated to be a synergy metrics for chemotherapy effectiveness and prognostic significance in invasive breast cancer. Cancer Cell Int 2021; 21:571. [PMID: 34711246 PMCID: PMC8555242 DOI: 10.1186/s12935-021-02256-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The incidence and mortality of invasive breast cancer (IBC) are increasing annually. Hence, it is urgently needed to determine reliable biomarkers for not only monitoring curative effects, but evaluating prognosis. In present study, we aim to determine the potential role of Carboxypeptidase N1 (CPN1) in IBC tissues on chemotherapeutic efficacy and poor prognosis. METHODS The expression level of CPN1 in IBC tissue samples (n = 123) was quantified by tissue microarray technique and immunohistochemical staining. Moreover, sera of IBC patients (n = 34) that underwent three to five consecutive chemotherapy sessions were collected. The patients were randomly stratified into a training (n = 15) as well as a validation group (n = 19). The expression of serum CA153 and CPN1 was quantified by electrochemiluminescence and ELISA assay, respectively. RESULTS By univariate and multivariate Cox regression analysis, we show that CPN1 expression in IBC tissues, as an independent risk factor, is related to a poor overall survival (OS) and progression-free survival (PFS) (P < 0.05). Analysis of the data revealed that CPN1 over-expression could be consistently linked to adverse clinicopathological features such as lymph node metastasis and the pathological stage (pTNM) (P < 0.05). The serum CPN1 level trajectory of individual patients generally decreased during chemotherapy. In line with these findings were changes in the follow-up ultrasonography and a consistent decrease in serum CPN1 levels. The comparison of the area under the receiver operating curves (ROC) revealed that CPN1 has a better surveillance value than CA153 in the training (AUCCPN1 = 0.834 vs. AUCCA153 = 0.724) as well as the validation set (AUCCPN1 = 0.860 vs. AUCCA153 = 0.720) when comparing cycle2 versus cycle3. CONCLUSIONS CPN1 is a suitable potential biomarker for chemotherapeutic surveillance purposes as well as being an appropriate prognostic indicator which would support an improved chemotherapy regimen.
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Affiliation(s)
- Ranliang Cui
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Chaomin Wang
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Tiantian Li
- School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Jialei Hua
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Ting Zhao
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China
| | - Li Ren
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China.
| | - Yichao Wang
- Department of Clinical Laboratory Medicine, Taizhou Central Hospital (Taizhou University Hospital), No. 999 Donghai Road, Jiaojiang District, Taizhou, 318000, Zhejiang, China.
| | - Yueguo Li
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Huanhuxi Road, Hexi District, Tianjin, 300060, China.
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Cauli O. Oxidative Stress and Cognitive Alterations Induced by Cancer Chemotherapy Drugs: A Scoping Review. Antioxidants (Basel) 2021; 10:1116. [PMID: 34356349 PMCID: PMC8301189 DOI: 10.3390/antiox10071116] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/01/2021] [Accepted: 07/08/2021] [Indexed: 02/06/2023] Open
Abstract
Cognitive impairment is one of the most deleterious effects of chemotherapy treatment in cancer patients, and this problem sometimes remains even after chemotherapy ends. Common classes of chemotherapy-based regimens such as anthracyclines, taxanes, and platinum derivatives can induce both oxidative stress in the blood and in the brain, and these effects can be reproduced in neuronal and glia cell cultures. In rodent models, both the acute and repeated administration of doxorubicin or adriamycin (anthracyclines) or cisplatin impairs cognitive functions, as shown by their diminished performance in different learning and memory behavioural tasks. Administration of compounds with strong antioxidant effects such as N-acetylcysteine, gamma-glutamyl cysteine ethyl ester, polydatin, caffeic acid phenethyl ester, and 2-mercaptoethane sulfonate sodium (MESNA) counteract both oxidative stress and cognitive alterations induced by chemotherapeutic drugs. These antioxidant molecules provide the scientific basis to design clinical trials in patients with the aim of reducing the oxidative stress and cognitive alterations, among other probable central nervous system changes, elicited by chemotherapy in cancer patients. In particular, N-acetylcysteine and MESNA are currently used in clinical settings and are therefore attracting scientific attention.
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Affiliation(s)
- Omar Cauli
- Frailty and Cognitive Impairment Group (FROG), University of Valencia, 46010 Valencia, Spain; ; Tel.: +34-96-386-41-82; Fax: +34-96-398-30-35
- Department of Nursing, University of Valencia, 46010 Valencia, Spain
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De Wilde RL, Devassy R, Torres-de la Roche LA, Krentel H, Tica V, Cezar C. Guidance and Standards for Breast Cancer Care in Europe. J Obstet Gynaecol India 2020; 70:330-336. [PMID: 33041548 PMCID: PMC7515989 DOI: 10.1007/s13224-020-01316-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 04/13/2020] [Indexed: 01/02/2023] Open
Abstract
The increasing incidence and mortality rates of breast cancer have led to the necessity of initiating and developing clinical practice guidelines in order to optimize cancer control and provide patients with the best care. These guidelines are either national or issued by reputed relevant European societies-like European Society for Medical Oncology. Many of the recommendations are concordant in-between the guidelines. However, there are still considerable discrepancies to be noted between guidelines from different European countries, which could hinder physicians from implementing their recommendations. The present paper summarizes and compares the recommendations included in the various European guidelines.
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Affiliation(s)
- Rudy Leon De Wilde
- University Hospital for Gynecology, Pius Hospital, University Medicine Oldenburg, Carl von Ossietzky University, Georgstrasse 12, 26121 Oldenburg, Germany
| | - Rajesh Devassy
- Obstetrician and Gynecologist, Advanced Gynecological Minimal – Access Surgery, Dubai London Clinic and Speciality Hospital, Dubai, United Arab Emirates
| | - Luz Angela Torres-de la Roche
- University Hospital for Gynecology, Pius Hospital, University Medicine Oldenburg, Carl von Ossietzky University, Georgstrasse 12, 26121 Oldenburg, Germany
| | - Harald Krentel
- Clinic of Gynecology, Obstetrics, Oncology and Senology, Bethesda Hospital, Duisburg, 47053 Germany
| | - Vlad Tica
- Obstetrics and Gynecology Department, University Regional Hospital, Ovidius University, Constanta, Romania
| | - Cristina Cezar
- University Hospital for Gynecology, Pius Hospital, University Medicine Oldenburg, Carl von Ossietzky University, Georgstrasse 12, 26121 Oldenburg, Germany
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Lu Q, Wu X, Zhu Y, Yang J, Wang X, Ye C, Cai R, Zhang K, Xu T, Wang B, Veeramootoo JS, Xia T, Liu X. Effects of Chemotherapy on Serum Lipids in Chinese Postoperative Breast Cancer Patients. Cancer Manag Res 2020; 12:8397-8408. [PMID: 32982433 PMCID: PMC7494007 DOI: 10.2147/cmar.s253397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose Chemotherapy is a comprehensive therapy for breast cancer; nevertheless, its associated adverse effects are drawing increasing attention with the continuous improvement of the efficacy. The changes in serum lipids of breast cancer patients caused by chemotherapy have been reported by previous studies, whereby the former increase the incidence rate of cardiovascular disorders. However, the variations in the changes of serum lipids with different chemotherapy regimens have seldom been reported. Methods From January 2011 to December 2017, 1740 breast cancer patients treated with chemotherapy were recruited at the First Affiliated Hospital of Nanjing Medical University. The chemotherapy regimens included anthracycline-based, taxane-based, and anthracycline-plus-taxane-based regimens, dose-dense and standard-interval regimens. Lipid profiles that contained TG (triglyceride), TC (total cholesterol), HDL-C (high-density lipoprotein cholesterol), LDL-C (low-density lipoprotein cholesterol) and Lpa (lipoprotein a) levels were collected prior to the first, second and last cycles of chemotherapy. The changes of serum lipids with the same or different chemotherapy regimens were analyzed and compared. Results It was observed that the levels of TG, TC, LDL-C and Lpa increased significantly while that of HDL-C decreased after adjuvant chemotherapy in breast cancer patients (P<0.05). Besides, dose-dense regimens had more influence in TG and HDL-C and less influence in TC and LDL-C than standard-interval regimens. HDL-C was more sensitive to anthracycline-based regimens than taxane-based regimens. The level of TG with anthracycline-plus-taxane-based regimens was higher than that with only anthracycline-based or taxane-based regimens, and the level of HDL-C with anthracycline-plus-taxane-based regimen showed lower than that with taxane-based regimen. Conclusion In summary, this study proposed that dyslipidemia was strongly associated with chemotherapy in Chinese breast cancer patients after operative treatment. Furthermore, the changes in levels of serum lipids varied among patients with different chemotherapy regimens and taxane had less effect on dyslipidemia than anthracycline.
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Affiliation(s)
- Qi Lu
- Department of Thyroid and Breast Surgery, The Second People's Hospital of Kunshan, Kunshan Jiangsu 215300, People's Republic of China
| | - Xian Wu
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Yanhui Zhu
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Junzhe Yang
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Xingmeng Wang
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Chaoran Ye
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Ruyu Cai
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Kai Zhang
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Tingyu Xu
- Department of Information, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Bing Wang
- Department of Information, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Jordee S Veeramootoo
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Tiansong Xia
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Xiaoan Liu
- Department of Breast Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, People's Republic of China
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Affiliation(s)
- Joseph O. Jacobson
- Dana-Farber Cancer Institute, Boston, MA
- Harvard Medical School, Boston, MA
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Matikas A, Foukakis T, Swain S, Bergh J. Avoiding over- and undertreatment in patients with resected node-positive breast cancer with the use of gene expression signatures: are we there yet? Ann Oncol 2019; 30:1044-1050. [PMID: 31131397 PMCID: PMC6695578 DOI: 10.1093/annonc/mdz126] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Prediction of benefit from adjuvant chemotherapy following resection of early breast cancer and, as a result, proper selection of candidates remains an elusive goal since the relative magnitude of benefit is the same regardless of the presence of clinicopathologic factors. Multiple studies, including randomized trials, establish the role of certain gene expression signatures in node-negative disease since they predict the risk of breast cancer relapse being so low that adjuvant chemotherapy can be omitted. In contrast, more limited data are available in higher risk, node-positive breast cancer patients, making the exclusion of adjuvant chemotherapy potentially hazardous. 'Prospective-retrospective' studies and limited prospective data show that several signatures, namely Oncotype Dx, MammaPrint, Prosigna, EndoPredict and Breast Cancer Index, select with different levels of success node-positive patients at very low risk for distant recurrence despite not receiving chemotherapy, although the long-term follow-up is still awaited. Pending, however the publication of the results from ongoing randomized studies which enroll patients with node-positive disease, major caution is warranted. Improper use and misinterpretation of these transcriptomic profiles can lead to undertreatment and exposure of patients to unnecessary risks resulting in increased breast cancer mortality for patients with axillary node-positive disease. With this review we critically discuss the available data on gene expression signatures that are used in clinical practice and offer practical recommendations regarding the management of patients with ER-positive, human epidermal growth factor receptor 2 (HER2)-negative, node-positive breast cancer.
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Affiliation(s)
- A Matikas
- Department of Oncology/Pathology, Karolinska Institutet, Stockholm; Breast Center, Theme Cancer, Karolinska University Hospital, Solna, Stockholm, Sweden.
| | - T Foukakis
- Department of Oncology/Pathology, Karolinska Institutet, Stockholm; Breast Center, Theme Cancer, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - S Swain
- Georgetown Lombardi Comprehensive Cancer Center, Washington; MedStar Health, Washington, USA
| | - J Bergh
- Department of Oncology/Pathology, Karolinska Institutet, Stockholm; Breast Center, Theme Cancer, Karolinska University Hospital, Solna, Stockholm, Sweden
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