Ibrutinib: A New Frontier in the Treatment of Chronic Lymphocytic Leukemia by Bruton’s Tyrosine Kinase Inhibition

ISSN: 1875-6182 (Online)
ISSN: 1871-5257 (Print)


Volume 12, 3 Issues, 2014


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Cardiovascular & Hematological Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Cardiovascular & Hematological Agents

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Editor-in-Chief:
Debabrata Mukherjee
Department of Internal Medicine Texas Tech University
4800 Alberta Avenue El Paso
Texas, 79905
USA


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Ibrutinib: A New Frontier in the Treatment of Chronic Lymphocytic Leukemia by Bruton’s Tyrosine Kinase Inhibition

Author(s): Ajoy Lawrence Dias and Dharamvir Jain

Affiliation: Division of Hematology and Medical Oncology, James Graham Brown Cancer Center, 529 South Jackson Street, Louisville, Kentucky 40202, USA.

Abstract

Chronic lymphocytic leukemia (CLL) is characterized by progressive accumulation of nonfunctional mature B cells in blood, bone marrow and lymphoid tissues. In the last decade, our understanding of CLL and consequently our diagnostic and therapeutic approaches have changed dramatically. Conventional fludarabine based chemotherapy has led to improved disease response and longer survival in young patients with CLL. However its application in elderly patients has been restricted by substantial myelosuppression and infection. Treatment of CLL is now moving towards targeted therapy. The success of new class of agents such as monoclonal antibodies, proteasome inhibitors and immunomodulatory derivatives has sparked further search for treatment agents with novel targets to inhibit. The B cell receptor activating pathway involving the Bruton’s tyrosine kinase (BTK) is crucial in B cell production and maintenance and is an attractive therapeutic target. Ibrutinib is an oral covalent inhibitor of the BTK pathway that induces apoptosis of B cells. Early phase studies with Ibrutinib either as a single agent or in combination regimens have shown promising results with an excellent safety profile in patients with high-risk, refractory or relapsed CLL and elderly treatment-naïve patients. This review summarizes the current knowledge of Ibrutinib in the treatment of CLL.

Keywords: B cell receptor (BCR), Bruton’s tyrosine kinase (BTK), Chronic lymphocytic leukemia (CLL), Ibrutinib.

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Article Details

Volume: 11
Issue Number: 4
First Page: 265
Last Page: 271
Page Count: 7
DOI: 10.2174/1871525712666140115143914
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