Protocol to Obtain Blood Samples for Leukemia Research

Inclusion Criteria:

Patients undergoing routine blood draws as part of their ongoing follow-up for Chronic Lymphocytic Leukemia (CLL) at the Norris Cotton Cancer Center of DHMC.

Exclusion Criteria:

Patients who have received cytotoxic drug, oral or intravenous steroid or targeted antibody therapy for CLL or other disease process within the past 6 months are excluded. Use of intravenous immunoglobulin (IVIg) is not a reason for exclusion.