- Stem cell mobilization: Patients achieving a complete remission (CR) or partial remission (PR) and stable blood counts undergo stem cell mobilization comprising dexamethasone, carmustine, cytarabine, etoposide, melphalan (Dexa-BEAM), and filgrastim (G-CSF). Patients with an adequate number of mobilized cells undergo stem cell collection. Patients with CR or very good PR proceed to myeloablative therapy.