A Study of Lenalidomide Maintenance for High-risk Patients With CLL Following First-line Therapy

placebo or lenalidomide 5 mg daily on days 1-28 of the first 28-day cycle. If the 5 mg dose level is well tolerated, escalation to 10 mg daily on days 1-28 of cycle 2-6 is permitted; further escalations starting with the 7th cycle and up to the 12th cycle to 15 mg daily is permitted. If after 12 cycles of treatment subjects still present with MRD levels of ≥ 10-4 in peripheral blood and previous dose levels are well tolerated, starting with the 13th cycle up to progression 20 mg daily is permitted. If after 18 cycles of treatment for subjects still present with MRD.levels of ≥ 10-4 in peripheral blood and previous dose levels are well tolerated, starting with the 19th cycle up to progression 25 mg daily is permitted. 25 mg is the maximal daily dose of lenalidomide

placebo or lenalidomide 5 mg daily on days 1-28 of the first 28-day cycle. If the 5 mg dose level is well tolerated, escalation to 10 mg daily on days 1-28 of cycle 2-6 is permitted; further escalations starting with the 7th cycle and up to the 12th cycle to 15 mg daily is permitted. If after 12 cycles of treatment subjects still present with MRD levels of ≥ 10-4 in peripheral blood and previous dose levels are well tolerated, starting with the 13th cycle up to progression 20 mg daily is permitted. If after 18 cycles of treatment for subjects still present with MRD.levels of ≥ 10-4 in peripheral blood and previous dose levels are well tolerated, starting with the 19th cycle up to progression 25 mg daily is permitted. 25 mg is the maximal daily dose of lenalidomide