PMID- 36655281 OWN - NLM STAT- MEDLINE DCOM- 20230706 LR - 20230706 IS - 1098-1101 (Electronic) IS - 0733-2459 (Linking) VI - 38 IP - 4 DP - 2023 Aug TI - Safety and performance of the Spectra Optia apheresis system for white blood cell depletion in patients with elevated white blood cell counts. PG - 396-405 LID - 10.1002/jca.22038 [doi] AB - BACKGROUND: For the past 30 years, white blood cell depletion (WBCD) or leukocytapheresis has been conducted to rapidly reduce excessive circulating white blood cell (WBC) concentrations in patients at risk for or with symptoms of leukostasis due to hyperleukocytosis. The goal of leukocytapheresis is to prevent or treat acute complications from leukostasis, thereby enabling patients to receive potentially curative chemotherapy. METHODS: This report details the results from a retrospective and a prospective clinical study conducted in the European Union and the People's Republic of China, which assessed the use of the Spectra Optia Apheresis System for leukocytapheresis in patients with hyperleukocytosis. The primary objective of both studies was to the assess the safety and performance of the WBCD procedure in patients with elevated WBC counts. RESULTS: Data were collected from 72 participants completing 87 WBCD procedures. The mean percent change in participant WBC counts post-procedure was 50.3 +/- 21.2% and the collection efficiency (CE1) of the WBCD procedures was 53.7 +/- 19.8%. Sixty-one participants (95.3%) experienced a total of 279 adverse events (AEs) with the majority of the AEs related to post-procedure changes in laboratory values, which is an anticipated AE in this patient population. CONCLUSION: The data collected within these studies indicate that the WBCD procedure is safe and well tolerated in patients with hyperleukocytosis as evaluated by percent decrease in WBC count, CE1, and AE incidence. CI - (c) 2023 Terumo BCT. Journal of Clinical Apheresis published by Wiley Periodicals LLC. FAU - Lopert, Pamela AU - Lopert P AUID- ORCID: 0000-0002-6625-7832 AD - Terumo BCT, Inc., Lakewood, Colorado, USA. FAU - Abdelrahman, Sohair AU - Abdelrahman S AD - Terumo BCT, Inc., Lakewood, Colorado, USA. FAU - Graybill, Christopher A AU - Graybill CA AD - Terumo BCT, Inc., Lakewood, Colorado, USA. FAU - Rhodes, Jack AU - Rhodes J AD - Terumo BCT, Inc., Lakewood, Colorado, USA. FAU - Dierickx, Daan AU - Dierickx D AD - UZ Leuven, Leuven, Belgium. FAU - Schafer, Richard AU - Schafer R AD - Institute for Transfusion Medicine and Immunohaematology, German Red Cross Blood Donor Service Baden-Wurttemberg-Hessen gGmbH, Frankfurt, Germany. FAU - Reti, Marienn AU - Reti M AD - Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Szent Laszla Hospital Campus, Budapest, Hungary. FAU - Wu, Depei AU - Wu D AD - The First Affiliated Hospital of Soochow University, Suzhou, China. FAU - Hu, Yu AU - Hu Y AD - Wuhan Union Hospital, Wuhan, China. FAU - Huang, Fen AU - Huang F AD - Nanfang Hospital, Guangzhou, China. FAU - Hu, Jianda AU - Hu J AD - Fujian Medical University Union Hospital, Fujian, China. FAU - He, Pengcheng AU - He P AD - The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. FAU - Liu, Ligen AU - Liu L AD - Tongren Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China. FAU - Li, Ming AU - Li M AD - The Second People's Hospital of Shenzhen, Shenzhen, China. FAU - Zhang, Xuejun AU - Zhang X AD - The Second Hospital of Hebei Medical University, Xi'an, China. FAU - Bill, Jerry AU - Bill J AD - Terumo BCT, Inc., Lakewood, Colorado, USA. LA - eng GR - Terumo BCT/ PT - Journal Article DEP - 20230118 PL - United States TA - J Clin Apher JT - Journal of clinical apheresis JID - 8216305 SB - IM MH - Humans MH - *Leukostasis/therapy MH - Retrospective Studies MH - Prospective Studies MH - Leukocytes MH - Leukapheresis/methods MH - Leukocyte Count OTO - NOTNLM OT - hyperleukocytosis OT - leukemia OT - leukocytapheresis OT - leukocyte depletion OT - leukocytes OT - leukostasis OT - therapeutic apheresis EDAT- 2023/01/20 06:00 MHDA- 2023/07/06 06:42 CRDT- 2023/01/19 02:05 PHST- 2022/12/14 00:00 [revised] PHST- 2022/03/04 00:00 [received] PHST- 2022/12/15 00:00 [accepted] PHST- 2023/07/06 06:42 [medline] PHST- 2023/01/20 06:00 [pubmed] PHST- 2023/01/19 02:05 [entrez] AID - 10.1002/jca.22038 [doi] PST - ppublish SO - J Clin Apher. 2023 Aug;38(4):396-405. doi: 10.1002/jca.22038. Epub 2023 Jan 18.