Higher Efficacy of Etoposide + Cytarabine Plus Pegfilgrastim in Poorly Mobilizing Multiple Myeloma and Lymphoma Patients
Cytotherapy(2023)
Abstract
Background aims: An optimal strategy for mobilizing hematopoietic stem cells in poorly mobilizing patients with multiple myeloma (MM) and lymphoma has not yet been determined.Methods: We retrospectively analyzed the efficacy and safety of etoposide combined with cytarabine (etoposide 75 mg/m2, daily d1-2; Ara-C 300 mg/m2, every 12 h d1-2), plus pegfilgrastim (6 mg d6) in 32 patients with MM or lymphoma, among whom 53.1% were defined as "proven poor mobilizers."Results: This approach resulted in adequate mobilization (>2.0 x 106 CD34+ cells/kg) in 93.8% of patients and optimal mobilization (>5.0 x 106 CD34+ cells/kg) in 71.9% of patients. A total of 100% of patients with MM reached at least 5 x 106 CD34+ cells/kg collected, the amount required for double autologous stem cell transplant. In total, 88.2% of patients with lymphoma reached at least 2 x 106 CD34+ cells/kg collected, the amount required for a single autologous stem cell transplant. This was achieved with a single leukapheresis in 78.1% of cases. A median peak number of 42.0/mL circulating CD34+ cells and a median number of blood CD34+ cells counts in 6.7 x 106/L were collected among 30 successful mobilizers. Approximately 6.3% of patients required plerixafor rescue, which was successful. Nine (28.1%) of the 32 patients suffered grade 2-3 infections, and 50% required platelet transfusions.Conclusions: We conclude that chemo-mobilization with etoposide, Ara-C and pegfilgrastim in poorly mobilizing patients with MM or lymphoma is very effective and has acceptable toxicity.& COPY; 2023 International Society for Cell & Gene Therapy. Published by Elsevier Inc. All rights reserved.
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Key words
autologous stem cell transplant,cytarabine,pegfilgrastim,poorly mobilizing,etoposide
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