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Infections following CAR-T cells therapy: current state-of-the-art review and recommendations

Authors
  • Styczyński, Jan1
  • 1 Jurasz University Hospital, Poland , (Poland)
Type
Published Article
Journal
Acta Haematologica Polonica
Publisher
Sciendo
Publication Date
Mar 13, 2020
Volume
51
Issue
1
Pages
11–16
Identifiers
DOI: 10.2478/ahp-2020-0004
Source
De Gruyter
Keywords
License
Green

Abstract

The most frequent and severe complications after chimeric antigen receptor T-cells (CAR-T cells) therapy include cytokine release syndrome (CRS), immune effector cell-associated neurotoxicity syndrome (ICANS), macrophage activation syndrome/hemophagocytic lymphohistiocytosis (MAS/HLH), tumor lysis syndrome (TLS), followed by B-cell aplasia and hypogammaglobulinemia. With these immunologically related events, cytokine storm and immunosuppression, there is a high risk of sepsis and infectious complications. The objective of this review was to present current knowledge on incidence, risk factors, clinical characteristics, and outcome of infections in patients following CAR-T cells therapy, as well as to present current recommendations on prophylaxis of infections after CAR-T cells therapy. Comparable to hematopoietic cell transplantation setting, specific pre- and post-CAR-T cells infusion phases can be determined as early (from 0 to +30 days), intermediate (from +31 to +100 days), and late (beyond day +100). These phases are characterized by CAR-T cells therapy-related factors and immune system defects contributing to an increased risk of infections. It is recommended that in case of active infection, CAR-T cells infusion should be delayed until infection has been successfully treated. After CAR-T cells therapy, prophylaxis should be implemented (anti-bacterial, anti-viral, anti-fungal, anti-pneumocystis), as well as treatment of neutropenia and immunoglobulin replacement should be considered. No recommendations so far can be given on revaccinations after CAR-T cells therapy.

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