Study of Cabazitaxel Combined With Prednisone and Prophylaxis of Neutropenia Complications in the Treatment of Patients With Metastatic Castration-resistant Prostate Cancer

Primary Objective: \- To assess effectiveness of prophylactic treatment of hematological complications (grade ≥ 3 neutropenia) resulting from cabazitaxel treatment for 21 days after treatment initiation. Secondary Objectives: * PSA response rate; * Descriptive assessment of CTC (circulating Tumor Cells); * Rates of grade ≥ 3 neutropenia and febrile neutropenia and grade ≥3 diarrhea over the treatment period; * Description of the Health Quality of Life of the patients; * Incidence of adverse events.