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Randomized, placebo‐controlled, phase 3 study of perifosine combined with bortezomib and dexamethasone in patients with relapsed, refractory multiple myeloma previously treated with bortezomib

Authors :
Paul G. Richardson
Arnon Nagler
Dina Ben‐Yehuda
Ashraf Badros
Parameswaran N. Hari
Roman Hajek
Ivan Spicka
Hakan Kaya
Richard LeBlanc
Sung‐Soo Yoon
Kihyun Kim
Joaquin Martinez‐Lopez
Moshe Mittelman
Ofer Shpilberg
Paul Blake
Teru Hideshima
Kathleen Colson
Jacob P. Laubach
Irene M. Ghobrial
Merav Leiba
Moshe E. Gatt
Peter Sportelli
Michael Chen
Kenneth C. Anderson
Source :
eJHaem, Vol 1, Iss 1, Pp 94-102 (2020)
Publication Year :
2020
Publisher :
Wiley, 2020.

Abstract

Abstract Perifosine, an investigational, oral, synthetic alkylphospholipid, inhibits signal transduction pathways of relevance in multiple myeloma (MM) including PI3K/Akt. Perifosine demonstrated anti‐MM activity in preclinical studies and encouraging early‐phase clinical activity in combination with bortezomib. A randomized, double‐blind, placebo‐controlled phase 3 study was conducted to evaluate addition of perifosine to bortezomib‐dexamethasone in MM patients with one to four prior therapies who had relapsed following previous bortezomib‐based therapy. The primary endpoint was progression‐free survival (PFS). The study was discontinued at planned interim analysis, with 135 patients enrolled. Median PFS was 22.7 weeks (95% confidence interval 16·0–45·4) in the perifosine arm and 39.0 weeks (18.3–50.1) in the placebo arm (hazard ratio 1.269 [0.817–1.969]; P = .287); overall response rates were 20% and 27%, respectively. Conversely, median overall survival (OS) was 141.9 weeks and 83.3 weeks (hazard ratio 0.734 [0.380–1.419]; P = .356). Overall, 61% and 55% of patients in the perifosine and placebo arms reported grade 3/4 adverse events, including thrombocytopenia (26% vs 14%), anemia (7% vs 8%), hyponatremia (6% vs 8%), and pneumonia (9% vs 3%). These findings demonstrate no PFS benefit from the addition of perifosine to bortezomib‐dexamethasone in this study of relapsed/refractory MM, but comparable safety and OS.

Details

Language :
English
ISSN :
26886146
Volume :
1
Issue :
1
Database :
Directory of Open Access Journals
Journal :
eJHaem
Publication Type :
Academic Journal
Accession number :
edsdoj.4446319b4078465e9e6ff60dab4bc36c
Document Type :
article
Full Text :
https://doi.org/10.1002/jha2.4