Donor lymphocyte(Celgene Corporation)

This is a prospective, open-label, single-arm multi-center phase II study aiming to evaluate the safety and feasibility of the addition of Lenalidomide (investigational drug) to the standard therapy of Azacitidine and DLI (standard of care) as first salvage therapy for relapse of MDS, CMML and AML with MDS-related changes (sAML, with 20%-30% bone marrow blasts, formerly RAEB-T) after allo-SCT. The starting dose of Lenalidomid is 2.5 mg per day for 21 days with a 7 day rest. The study incorporates 2 interim safety analyses after 10 and 20 patients in order to find the optimal and safe dose of Lenalidomide.