J 2024

Treatment and Prognosis of Male Breast Cancer: A Multicentric, Retrospective Study Over 11 Years in the Czech Republic

BIELCIKOVA, Zuzana, Miloš HOLÁNEK, Iveta SELINGEROVÁ, Ondrej SOREJS, Iveta KOLAROVA et. al.

Basic information

Original name

Treatment and Prognosis of Male Breast Cancer: A Multicentric, Retrospective Study Over 11 Years in the Czech Republic

Authors

BIELCIKOVA, Zuzana (203 Czech Republic), Miloš HOLÁNEK (203 Czech Republic, belonging to the institution), Iveta SELINGEROVÁ (203 Czech Republic, belonging to the institution), Ondrej SOREJS (203 Czech Republic), Iveta KOLAROVA (203 Czech Republic), Renata SOUMAROVA (203 Czech Republic), Jan PROKS (203 Czech Republic), Lucie REIFOVA (203 Czech Republic), Vlastimila CMEJLOVA (203 Czech Republic), Lenka LINKOVA (203 Czech Republic), Michaela ZABOJNIKOVA (203 Czech Republic), Martina CHODACKA (203 Czech Republic), Lucie JANOVSKA (203 Czech Republic), Lenka LISNEROVA (203 Czech Republic), Karolina KASPAROVA (203 Czech Republic), Denisa POHANKOVA (203 Czech Republic) and Lubos PETRUZELKA (203 Czech Republic)

Edition

Oncologist, OXFORD, OXFORD UNIV PRESS, 2024, 1083-7159

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30204 Oncology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.800 in 2022

Organization unit

Faculty of Medicine

UT WoS

001176836200001

Keywords in English

male breast cancer; epidemiology; genetic testing; prognosis; retrospective study

Tags

Tags

International impact, Reviewed
Změněno: 5/11/2024 14:10, Mgr. Tereza Miškechová

Abstract

V originále

Purpose: Male breast cancer (MBC) is a rare, but increasingly common disease, and lacks prospective studies. Collaborative efforts are needed to understand and address MBC, including its prognosis, in different countries. Methods: We retrospectively reviewed the clinical, histopathological, and molecular-genetic characteristics, treatments, and survival outcomes of MBC diagnosed between 2007 and 2017 in the Czech Republic. Prognostic factors of overall survival (OS), recurrence-free interval (RFi), and breast cancer-specific mortality (BCSM) were analyzed and indirectly compared to international data. Results: We analyzed 256 patients with MBC (median age 66 years), including 12% with de novo metastatic (M1). Of 201 non-metastatic (M0) patients, 6% were <40 years old, 29% had stage I, 55% were cN0, and 54% underwent genetic testing. Overall, 97% of tumors had estrogen receptor expression >= 10%, 61% had high Ki67 index, 40% were high-grade (G3), and 68% were luminal B-like (HER2-negative). Systemic therapies included endocrine therapy (90%) and chemotherapy (53%). Few (5%) patients discontinued adjuvant endocrine therapy for reasons other than disease relapse or death. Patients treated with aromatase inhibitors alone had significantly shorter RFi (P < .001). OS, RFi, and BCSM were associated with disease stage, T stage, N stage, progesterone receptor expression, grade, and Ki67 index. Median OS reached 122 and 42 months in M0 and de novo M1 patients, respectively. Conclusion: Due to the rarity of MBC, this study highlights important findings from real clinical practice. Although the number of patients with MBC with unfavorable features was higher in this Czech dataset than in international studies, the prognosis remains consistent with real-world evidence.