Alemtuzumab in T-cell lymphoproliferative disorders
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The humanized monoclonal antibody alemtuzumab binds to the CD52 antigen, a glycoprotein which is widely expressed on normal and malignant B and T lymphocytes. Recently it has been demonstrated in a number of clinical trials that alemtuzumab has clinical activity in mature T-cell diseases such as T-prolymphocytic leukaemia and cutaneous T-cell lymphoma, inducing responses in up to two thirds of heavily pre-treated relapsed/refractory patients. Response was associated with improved survival. The toxicity profile for the antibody is manageable. The major complications are infusional reactions associated with initial injections, and prolonged lymphopenia associated with reactivation of viruses. Future studies will be directed towards alternative (subcutaneous) routes and schedules of administration, use as first-line therapy, combination strategies, and role of alemtuzumab to purge minimal residual bone-marrow disease prior to stem-cell transplantation.
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Molecular Haematology (including Cytogenetics Group and Cell Markers)
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BEST PRACTICE & RESEARCH CLINICAL HAEMATOLOGY, 2006, 19 pp. 795 - 810
ELSEVIER SCIENCE BV