AMENO-2: Aprepitant Plus Palonosetron Versus Granisetron in the Prevention of Nausea and the Emesis Induced by Chemotherapy in Patients Treated With Haematopoietic Progenitors

Aprepitant: 125 mg oral day 1, follows by 80 mg oral every 24 hours in next days

Palonosetrón: 0.25 mg iv every 48 hours, starting day 1

Granisetrón : 3 mg iv day, all days the patient will be treated with chemotherapy, and Aprepitant placebo 125 mg oral, day 1, and 80 mg next days in chemotherapy treatment