Abstract
The optimal regimen for peripheral blood stem cell (PBSC) mobilization in patients with multiple myeloma undergoing autologous hematopoietic stem cell transplantation (auto-HCT) has not been established. Experience at The University of Texas MD Anderson Cancer Center suggests in addition to single-agent cyclophosphamide (Cy), modified cyclophosphamide, vincristine, doxorubicin, and dexamethasone (mCVAD), and modified cyclophosphamide, bortezomib, doxorubicin, and dexamethasone (mCBAD) may be successful chemomobilization regimens. This retrospective review included 167 patients (66 with Cy, 74 with mCVAD, and 27 with mCBAD) with multiple myeloma undergoing mobilization for auto-HCT between January 1, 2006 and September 30, 2013. The primary objective was to evaluate and compare the successful mobilization of CD34+ cells among high-dose Cy, mCVAD or mCBAD. Successful mobilization (≥2×106 CD34+ cells/kg) was achieved in all patients, while 65 (98%), 72 (97%), and 27 (100%) patients achieved an optimal mobilization (≥4×106 CD34+ cells/kg) in the Cy, mCVAD, and mCBAD groups, respectively. There was no significant difference in the number of apheresis sessions (P=.63), incidence of febrile neutropenia (P=.57), or hospital admission rates (P=.55). Either Cy, mCVAD, or mCBAD can yield successful PBSC mobilization in patients with multiple myeloma undergoing auto-HCT.
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