Retrospective Observational Study to Determine the Epidemiology and Treatment Patterns of Patients with

Magdalena Rosińska1, Roman Dubiański2, Aleksandra Konieczna2

  • 1Computational Oncology Department, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland.

Cancers
|March 28, 2024
PubMed

Insights

Triple-negative breast cancer (TNBC) treatment in Poland shows increased systemic therapy use, particularly carboplatin and dose-dense regimens. Neoadjuvant therapy correlated with less invasive surgeries for TNBC patients.

Area of Science:

  • Oncology
  • Clinical Research
  • Epidemiology

Background:

  • Triple-negative breast cancer (TNBC) presents a significant therapeutic challenge due to its aggressive, heterogeneous, and metastatic nature.
  • The lack of specific therapeutic targets hinders standardized treatment protocols for TNBC.
  • Limited real-world epidemiological data exists regarding TNBC treatment in Poland.

Purpose of the Study:

  • To retrospectively analyze clinical data on TNBC treatment regimens in Poland.
  • To identify trends in TNBC patient characteristics and treatment modalities between 2015 and 2020.
  • To assess the impact of BRCA mutations and neoadjuvant therapy on surgical outcomes in TNBC.

Main Methods:

  • Retrospective analysis of hospital registry data from 2015-2020.
  • Inclusion of 856 patients diagnosed with TNBC out of 8103 breast cancer patients.
  • Review of patient demographics, tumor characteristics, BRCA mutation status, treatment regimens, and surgical outcomes.

Main Results:

  • TNBC patients often presented with comorbidities, poorly differentiated (G3) stage II tumors, and a bimodal age distribution.
  • Approximately one-third of tested TNBC cases harbored BRCA mutations, influencing surgical decisions.
  • A notable increase in systemic therapy use was observed, with carboplatin and dose-dense regimens showing a significant rise in the neoadjuvant setting.
  • Neoadjuvant therapy use was positively associated with less invasive breast and lymph node surgeries.

Conclusions:

  • The observed treatment trends in Poland align with international patterns for TNBC management.
  • Increased utilization of systemic and neoadjuvant therapies, including carboplatin, is evident.
  • Findings support the expansion of knowledge for optimizing TNBC treatment planning and improving patient outcomes.