Lenalidomide (Revlimid®) Plus Low-dose Dexamethasone (Ld x 4 Cycles) Then Stem Cell Collection Followed by Randomization to Continued Ld or Stem Cell Transplantation (SCT) Plus Maintenance L

"After 4 cycles of Ld, eligible patients will undergo stem cell mobilization and collection with standard-of-care cyclophosphamide and Neupogen (G-CSF) or with plerixafor G-CSF. Mobilization with cyclophosphamide is preferred, but plerixafor is also allowed. Ld will be held for at least 2 weeks prior to stem cell mobilization.~On the SCT arm, patients not achieving VGPR by 3 months after the 1st SCT will undergo a 2nd SCT. All patients, after one or two SCT, will receive maintenance L."

Patients will then be randomized to continued Ld or high-dose melphalan with SCT. On the SCT arm patients not achieving VGPR by 3 months after the 1st SCT will undergo a 2nd SCT. All patients after one or two SCT, will receive maintenance L.