A Safety and Efficacy Trial of a Combination of Bendamustine, Rituximab and Lenalidomide in Patients With Chronic Lymphocytic Leukemia

"Bendamustine: 50 mg/m2, i.v., day 1+2~Rituximab: Cycle 1: 375 mg/m2, i.v. day 0; Cycle 2-6: 500mg/m2, i.v., day 1~Lenalidomide:~* Dose level 1: Cycle 1-6: 2,5mg p.o., d1-28~* Dose level 2: Cycle 1: 2,5mg p.o., d1-28; Cycle 2-6: 5mg p.o., d1-28~* Dose level 3: Cycle 1: 2,5mg p.o., d1-28; Cycle 2:5mg p.o., d1-28; Cycle 3-6: 10 mg p.o., d1-28~* Dose level 4: Cycle 1: 2,5mg p.o., d1-28; Cycle 2:5mg p.o., d1-28; Cycle 3: 10 mg p.o.,d1-28, Cycle 4-6: 15 mg p.o.,d1-28~* Dose level 5: maximal tolerated dose"