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Threshold for optimal administration of plerixafor in autologous peripheral blood stem cell collections through CD34 + cell monitoring based on the experience from two Japanese university hospitals
Author(s) -
Okubo Mitsuo,
Furuta Yoshiaki,
Nakamura Yuki,
Osawa Toshiya,
Tada Naoki,
Sawada Tomohiro,
Yamatoya Kenji,
Sekiguchi Yasunobu,
Araki Yoshihiko,
Miyake Kazunori,
Noguchi Masaaki,
Komatsu Norio,
Ohsaka Akimichi
Publication year - 2021
Publication title -
therapeutic apheresis and dialysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.415
H-Index - 53
eISSN - 1744-9987
pISSN - 1744-9979
DOI - 10.1111/1744-9987.13614
Subject(s) - plerixafor , medicine , leukapheresis , cd34 , multiple myeloma , stem cell , surgery , cxcr4 , receptor , chemokine , biology , genetics
Plerixafor was introduced to Japan in 2017 as a stem cell mobilization enhancement reagent, but the threshold for its use remains unclear. In this study, we assessed 57 patients treated with plerixafor (33 patients with multiple myeloma (MM) and 24 with malignant lymphoma (ML) and 152 patients without plerixafor administration. When CD34+ cell pre‐counts were between 5.5 and 20 cells/μL in MM or 6 and 21 cells/μL in ML, the CD34+ cell count increased significantly, attaining the highest yield in response to plerixafor (achievement rate by one leukapheresis is 93.3% and 91.7% in MM and ML, at P < .001 and P = .012, respectively). In case the CD34+ cell pre‐count was less than 5.5 cells/μL, an increase of at least 7 cells/μL from baseline by plerixafor was the necessary condition to achieve successful collection through a two‐time leukapheresis. Monitoring CD34+ cell numbers might improve the collection efficiency and reduce the cost.