Volume 197, Issue 3 pp. 306-309
SHORT REPORT

The impact of B-cell-directed therapy on SARS-CoV-2 vaccine efficacy in chronic lymphocytic leukaemia

Chaitra Ujjani

Corresponding Author

Chaitra Ujjani

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

Correspondence

Chaitra Ujjani, 825 Eastlake Ave, Seattle, WA, 98109, USA.

Email: [email protected]

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Mazyar Shadman

Mazyar Shadman

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Ryan C. Lynch

Ryan C. Lynch

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Brian Tu

Brian Tu

University of Washington, Seattle, Washington, USA

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Philip A. Stevenson

Philip A. Stevenson

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Caitlin Grainger

Caitlin Grainger

University of Washington, Seattle, Washington, USA

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Haiying Zhu

Haiying Zhu

University of Washington, Seattle, Washington, USA

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Joshua A. Hill

Joshua A. Hill

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Meei-Li Huang

Meei-Li Huang

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Leslie Nielsen

Leslie Nielsen

University of Washington, Seattle, Washington, USA

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Christina Poh

Christina Poh

University of Washington, Seattle, Washington, USA

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Tyler Sorensen

Tyler Sorensen

University of Washington, Seattle, Washington, USA

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Ajay K. Gopal

Ajay K. Gopal

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Edus H. Warren

Edus H. Warren

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Brian G. Till

Brian G. Till

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Sydney Lee

Sydney Lee

University of Washington, Seattle, Washington, USA

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Daria Gausman

Daria Gausman

University of Washington, Seattle, Washington, USA

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Stephen D. Smith

Stephen D. Smith

University of Washington, Seattle, Washington, USA

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Ted Gooley

Ted Gooley

Fred Hutchinson Cancer Research Center, Seattle, Washington, USA

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Alex Greninger

Alex Greninger

University of Washington, Seattle, Washington, USA

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First published: 11 February 2022
Citations: 6

Abstract

Prior reports evaluating SARS-CoV-2 vaccine efficacy in chronic lymphocytic leukaemia (CLL) used semiquantitative measurements of anti-S to evaluate immunity; however, neutralization assays were used to assess functional immunity in the trials leading to vaccine approval. Here, we identified decreased rates of seroconversion in vaccinated CLL patients and lower anti-S levels compared to healthy controls. Notably, we demonstrated similar results with the Roche anti-S assay and neutralization activity. Durable responses were seen at six months; augmentation with boosters was possible in responding patients. Absence of normal B cells, frequently seen in patients receiving Bruton tyrosine kinase and B-cell lymphoma 2 inhibitors, was a strong predictor of lack of seroconversion.

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