Alemtuzumab therapy for severe autoimmune hemolysis in a patient with B-cell chronic lymphocytic leukemia.

Medical Oncology
Jeanette LundinF Celsing

Abstract

B-cell chronic lymphocytic leukemia (B-CLL) is the most common cause of autoimmune hemolytic anemia (AIHA), and a subgroup of these patients who develop both these conditions fail to respond to corticosteroids, cytotoxic drugs, splenectomy, and iv immunoglobulins. Alemtuzumab is a humanized anti-CD52 monoclonal antibody that is an effective therapy for B-CLL, mycosis fungoides, and T-cell prolymphocytic leukemia. Here we present a case report of a 78-yr-old woman with B-CLL and progressive life-threatening AIHA with hemoglobin count 5.5 g/dL following fludarabine treatment, who was treated successfully with alemtuzumab. The anemia was completely reversed and hemoglobin count remains at 14 g/dL after 15 mo of unmaintained follow-up. No infectious complications were noted during or after alemtuzumab therapy. We conclude that alemtuzumab may be indicated for the treatment of AIHA in B-CLL patients who have failed other treatments.

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