Patients in whom first progression is identified between days 366 and 450 (inclusive) after ASCT will be eligible if progression is identified on their first evaluation for progression in this window and if they had not been evaluated between days 270 and 365 for progression. This clause is to account for practice patterns in which patients otherwise doing well are monitored infrequently (every 3-6 months) for relapse after they recover from their first ASCT. This will allow infrequently monitored patients to be included if progression is identified on their "12 month follow-up evaluation" if this appointment happens to be scheduled just outside the 365-day post-ASCT window. N.B.: There is no requirement that patients must enroll within 365 days of prior ASCT, and patients may be treated with other agents, including experimental agents, following relapse/progression after prior ASCT before enrollment on this study.