The population of the study is women diagnosed with breast cancer, who will start chemotherapy (Doxorubicine and Cyclophosfamide). We will evaluate the control of nausea and vomiting in the first cycle of chemotherapy, utilizing Netupitant (300mg) + palonosetron (0,56mg) in day 1 and Olanzapine 5mg starting on Day 0, given once a day for five days. The primary endpoint of this study is complete response rate (no nausea, no emesis no use of rescue medication).
