Long-Term Treatment with Ibrutinib in Chronic Lymphocytic Leukemia Patients Normalizes CD3+and CD8+T Cells and Immune Checkpoints Expression but Gradually Leads to CD4+T-Cell Depletion

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Title: Long-Term Treatment with Ibrutinib in Chronic Lymphocytic Leukemia Patients Normalizes CD3+and CD8+T Cells and Immune Checkpoints Expression but Gradually Leads to CD4+T-Cell Depletion
Authors: Palma, Marzia, Heimersson, Kia, Näsman-Glaser, Barbro, Mellstedt, Håkan, Österborg, Anders
Source: Blood; December 2017, Vol. 130 Issue: 1, Number 1 Supplement 1 p4322-4322, 1p
Abstract: In this study, we analyzed the changes in the peripheral blood mononuclear cells (PBMC) in symptomatic, relapsed or refractory chronic lymphocytic leukemia (CLL) patients (pts) during long-term treatment with the Bruton's tyrosine kinase inhibitor ibrutinib. Peripheral blood (PB) samples were collected before start of treatment with ibrutinib (420 mg/day p.o.) and at week (wk) 4, 10, 16, 22 and at 8, 12 and 24 months (mo) of treatment. Flow-cytometry analyses of PBMC included CLL cells, Natural Killer (NK) cells, T-cell memory subsets, helper subpopulations (Ths) and regulatory T cells (Tregs).
Database: Supplemental Index
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ISSN:00064971
15280020
DOI:10.1182/blood.V130.Suppl_1.4322.4322
Published in:Blood
Language:English