Cabazitaxel is an option in metastasized castration resistant prostate cancer (mCRPC).
The occurrence of cabazitaxel induced neutropenia (CIN) is a positive predictive factor.
Severe CIN is associated with better progression-free and overall survival.
Prophylactic use of filgrastim (G-CSF) after first CIN shows a survival advantage.
A model of neutrophil-to-lymphocyte ratio and CIN defines three risk categories in mCRPC.