Tyrosine kinase inhibitors in HER2-positive metastatic breast cancer with trastuzumab emtansine resistance: insights from a multicenter retrospective real-world study.
MedComm (2020)
; 5(7): e624, 2024 Jul.
Article
em En
| MEDLINE
| ID: mdl-38903538
ABSTRACT
The use of trastuzumab emtansine (T-DM1) has revealed significant efficacy in HER2-positive metastatic breast cancer (MBC). However, optimal therapeutic strategies following T-DM1 failure remain a subject of debate in clinical practice. In this multicenter, retrospective, real-world study, we sought to examine the effectiveness and safety of tyrosine kinase inhibitors (TKIs) as a therapeutic strategy in HER2-positive MBC who developed T-DM1 resistance. Between September 2018 and December 2022, 66 patients were enrolled. The median progression-free survival of TKIs-based therapy was 10.1 months (95% CI, 4.7-15.6). Objective response rate and clinical benefit rate were 18.2 and 66.7%, respectively. TKIs-based therapy demonstrated better effectiveness in patients who had previously derived benefit from T-DM1 and featured acquired resistance to trastuzumab. The most common adverse events were diarrhea (36, 54.5%), hand-foot syndrome (31, 47.0%), and leucopenia (30, 45.5%). In conclusion, TKIs-based therapy showed promising effectiveness and safety in HER2-positive MBC patients after T-DM1 failure.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
MedComm (2020)
Ano de publicação:
2024
Tipo de documento:
Article