Defective T‐cell response to COVID‐19 vaccination in acute myeloid leukaemia and myelodysplastic syndromes

Justin Loke, Vinit Upasani, Charlotte Gaskell, Sonia Fox, Rachel Fletcher, Catherine Thomas, Louise Hopkins, Anita Kumari, Tina Tang, Emily Yafai, Rebecca Boucher, Victoria Homer, Arpad Toth, Y. L. Tracey Chan, Katie Randall, Tom Rider, Jenny O'nions, Victoria Drew, Arvind Pillai, Moez DungarwallaDuncan Murray, Anjum Khan, Farooq Wandroo, Sally Moore, Pramila Krishnamurthy, Ya‐wen Jessica Huang, Steve Knapper, Jenny Byrne, Rui Zhao, Charles Craddock, Helen Parry, Paul Moss, Simon J. Stanworth*, David M. Lowe*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Limited data exist on COVID-19 vaccination efficacy in patients with acute myeloid leukemia and myelodysplasia with excess blasts (AML/MDS-EB2). We report results from a prospective study, PACE (Patients with AML and COVID-19 Epidemiology). 93 patients provided samples post-vaccine 2 or 3 (PV2, PV3). Antibodies against SARS-COV-2 spike antigen were detectable in all samples. Neutralization of the omicron variant was poorer than ancestral variants but improved PV3. In contrast, adequate T-cell reactivity to SARS-COV-2 spike protein was seen in only 16/47 (34%) patients PV2 and 23/52 (44%) PV3. Using regression models, disease response (not in CR/Cri), and increasing age predicted poor T cell response.

Original languageEnglish
Pages (from-to)498-503
Number of pages6
JournalBritish Journal of Haematology
Volume202
Issue number3
Early online date12 Jun 2023
DOIs
Publication statusPublished - Aug 2023

Bibliographical note

© 2023 British Society for Haematology and John Wiley & Sons Ltd.

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