Authors

Document Type

Article

Publication Date

9-1-2017

Comments

This article has been peer reviewed. It is the authors' final version prior to publication in Cancer Discovery, Volume 7, Issue 9, September 2017, Pages 1018-1029.

The published version is available at https://doi.org/10.1158/2159-8290.CD-17-0613. Copyright © American Association for Cancer Research Inc.

Abstract

Bruton tyrosine kinase (BTK) links the B-cell antigen receptor (BCR) and Toll-like receptors with NF-κB. The role of BTK in primary central nervous system (CNS) lymphoma (PCNSL) is unknown. We performed a phase I clinical trial with ibrutinib, the first-in-class BTK inhibitor, for patients with relapsed or refractory CNS lymphoma. Clinical responses to ibrutinib occurred in 10 of 13 (77%) patients with PCNSL, including five complete responses. The only PCNSL with complete ibrutinib resistance harbored a mutation within the coiled-coil domain of CARD11, a known ibrutinib resistance mechanism. Incomplete tumor responses were associated with mutations in the B-cell antigen receptor-associated protein CD79B.

PubMed ID

28619981

Language

English

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