In the phase II the response rate will be determined in all subjects that have received treatment. The study will enroll 32 subjects previously untreated who have active disease requiring treatment (as defined by IWCLL 2008 criteria for initiation of therapy). The study will include a Screening Phase, a Treatment Phase, and a Follow-up Phase. The Screening Phase assessments will be performed within 28 days prior to treatment. The Treatment Phase will extend from first dose until completion of all planned cycles of treatment (#6) or study drug discontinuation.