Disease-Free survival (DFS) 2 years [clinicaltrials_resource:9d521f74e5f262445c97187233a5c4c4]

Lenalidomide 25 mg p.o. once daily on days 1-21 plus Dexamethasone 40 mg p.o. once daily on days 1, 8, 15, and 22 of each 28-day cycle (4-weeks cycles) until CR achievement, progression of disease or intolerable toxicity

Disease-Free survival (DFS) 2 years [clinicaltrials_resource:9d521f74e5f262445c97187233a5c4c4]

Lenalidomide 25 mg p.o. once daily on days 1-21 plus Dexamethasone 40 mg p.o. once daily on days 1, 8, 15, and 22 of each 28-day cycle (4-weeks cycles) until CR achievement, progression of disease or intolerable toxicity