Publication details

Impact of Hormone Receptor Status on the Behaviour of HER2+Breast Cancer

Authors

KOLAROVA Iveta DUŠEK Ladislav RYSKA Ales ODRAZKA Karel DOLEZEL Martin VANASEK Jaroslav MELICHAR Bohuslav PETERA Jiri BUCHLER Tomas VOSMIK Milan PETRAKOVA Katarina TERAROVA Petra VILASOVA Zdena JARKOVSKÝ Jiří

Year of publication 2020
Type Article in Periodical
Magazine / Source In vivo
MU Faculty or unit

Faculty of Medicine

Citation
Web http://iv.iiarjournals.org/content/34/6/3441.full.pdf
Doi http://dx.doi.org/10.21873/invivo.12183
Keywords Breast cancer; triple positive; HER2-positive; hormone receptors; overall survival; trastuzumab
Description Background/Aim: The study aimed to evaluate differences in the overall survival of HER2+ breast cancer patients treated with regard to their hormone receptors negativity or positivity. We evaluated a cohort of patients treated with trastuzumab in the Czech Republic. Patients and Methods: The present study is a retrospective analysis of patients whose data were recorded in a nationwide non-interventional, post-authorisation database BREAST. After propensity score matching of data, the cohort included 4,532 patients. Results: A significant difference in overall survival (OS) of the entire cohort was found between patients with and without hormone dependence. The OS was significantly higher in the group of patients with hormone receptor-positive (HR+) tumours in the following cohorts: patients treated with neoadjuvant therapy, patients with advanced disease, G2 tumours, stage III and IV and in patients with stage II and III of G2 tumours. Conclusion: Increased OS rates were found in several subgroups of patients with HR+/HER2+ tumours compared to those with HR/HER2+ tumours. Better outcomes of HR+/HER2+ patients were only observed in the first four/five years of follow-up, and the differences disappeared over time.

You are running an old browser version. We recommend updating your browser to its latest version.

More info