Plasma B-Cell Maturation Antigen Levels are Elevated and Correlate with Disease Activity in Patients with Chronic Lymphocytic Leukemia.

Background: Chronic lymphocytic leukemia (CLL) is a malignancy of late B cells. In another late B-cell malignancy (multiple myeloma), levels of solubilized B-cell maturation antigen (sBCMA) are elevated and predict outcomes.

Objective: We sought to evaluate sBCMA as a possible prognostic factor and monitoring tool for patients with CLL.