The potential role of PD0332991 (Palbociclib) in the treatment of multiple myeloma.

Abstract:

INTRODUCTION:Multiple myeloma (MM) remains an incurable malignancy indicating a need for continued investigation of novel therapies. Recent studies have highlighted the role of cyclin-dependent kinases (CDK) in the pathogenesis of MM. PD0332991 (Palbociclib) is an orally bioavailable, highly selective inhibitor of the CDK4/6-cyclin complex and downstream retinoblastoma protein (Rb) activation pathway that induces cell cycle arrest in the G1 phase. AREAS COVERED:In this review, the authors summarize the role of the CDK4/6 signaling pathway in MM. They also summarize the development of PD0332991 as a specific inhibitor of CDK4/6, and the reported preclinical and clinical data supporting the potential role of PD0332991 in MM. EXPERT OPINION:While PD0332991 is essentially cytostatic, inducing prolonged G1 arrest, it enhances the cytotoxic effect of other agents effective in MM, including bortezomib and lenalidomide, as confirmed in early phase clinical trials. However, with a plethora of other drugs of different classes being tested in MM, further development of PD0332991 will depend on defining the most efficacious combination with least toxicity. An unexplored opportunity remains the potential protective effect of PD0332991 against lytic bone lesions of MM. The next few years are likely to better define the place of PD0332991 in the treatment of MM.

authors

Altenburg JD,Farag SS

doi

10.1517/13543784.2015.993753

subject

Has Abstract

pub_date

2015-02-01 00:00:00

pages

261-71

issue

2

eissn

1354-3784

issn

1744-7658

journal_volume

24

pub_type

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