You will then have 7 days off of the study drug, which is considered a rest period. This entire period is considered 1 cycle of therapy (28 days). The number of treatment cycles you may have will depend on the response of your disease to treatment on this study. You will have blood drawn (about 3 tablespoons) to test for blood counts and chemistries before each treatment cycle. At the end of 3 cycles, your disease will be evaluated for response to the study treatment.