- Dose levels 2-7: Patients will receive two doses of 90Y-daclizumab RIT 6 weeks apart (Day -56 and -15 2 days) followed by high-dose BEAM chemotherapy (beginning day -6) and ASCT (Day 0). The first dose of 90Y-daclizumab will be fixed at 15 mCi. The second dose will be escalated in 15 mCi increments from 15 mCi until maximum tolerated dose, not to exceed 90 mCi.