 During treatment, the participants will receive one dose of Mitoxantrone combined with one dose of Bortezomib every week for 4 weeks in a row followed by 2 weeks of rest; this is called a course. If side effects are not too severe, Mitoxantrone and Bortezomib will be infused rapidly into a vein while participants will be receiving normal saline salt in water solution at a rate of 100mlhour. They will receive the salt solution the entire time they are in the treatment area. 