Japanese Journal of Clinical Oncology Advance Access originally published online on May 30, 2007
Japanese Journal of Clinical Oncology 2007 37(5):382-384; doi:10.1093/jjco/hym037
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© 2007 Foundation for Promotion of Cancer Research
Combination Chemotherapy with Bortezomib, Cyclophosphamide and Dexamethasone may be Effective for Plasma Cell Leukemia
1 Division of Hematology and Oncology, Department of Internal Medicine
2 Department of Laboratory Medicine
3 Department of Diagnostic Radiology, Korea University Medical Center, Seoul, Korea
For reprints and all correspondence: Byung Soo Kim, Division of Oncology and Hematology, Department of Internal Medicine, Korea University Medical Center, 126-1, Anamdong 5-ga, Seongbuk-ku, Seoul, 136-705, Korea. E-mail: kbs0309{at}korea.ac.kr
Received November 10, 2006; accepted December 23, 2006
Plasma cell leukemia is a rare malignant plasma cell disorder characterized by proliferation of plasma cells in blood and the bone marrow, the outcome of which is poor with conventional therapy. More effective treatment strategies are therefore needed for this disorder. Here, we report a case of secondary plasma cell leukemia from Immunoglobulin D multiple myeloma refractory to doxorubicin-containing chemotherapy and thalidomide. The patient achieved complete remission with bortezomib-containing chemotherapy as follows: bortezomib 1.3 mg/m2 intravenous infusion on days 1, 4, 8 and 11; cyclophosphamide 750 mg/m2 intravenous infusion on days 1 and 3; dexamethasone 40 mg/m2 intravenous infusion on days 14. Complete remission was maintained until the fourth course of the treatment, and we then performed autologous peripheral blood stem cell transplantation. Our experience suggests that combination chemotherapy with bortezomib, cyclophosphamide and dexamethasone may be an effective induction treatment for plasma cell leukemia.
Key Words: bortezomib cyclophosphamide plasma cell leukemia multiple myeloma