What is the BOSTON Trial?
The BOSTON trial is the first phase III study to evaluate the clinical benefit of selinexor, Velcade (bortezomib), and dexamethasone (SVd) for relapsed/refractory multiple myeloma. The BOSTON study was designed to determine if SVd improves progression free survival (PFS), overall response rates (ORR), and reduces the rate of peripheral neuropathy that is a common side effect of Velcade and dexamethasone.

In this video:
Dr. Meletios A. Dimopoulos (Unviersity of Athens — Athens, Greece) explains that selinexor is an oral, selective inhibitor of XPO1-mediated nuclear export, leading to the reactivation of tumor suppressor proteins. He discusses that in a phase Ib/II study, the combination of once weekly (QW) selinexor with bortezomib and dexamethasone (SVd) was well tolerated with anti-multiple myeloma activity in patients with primary immunodeficiency-sensitive and primary immunodeficiency-refractory disease.

Results:
While twice-weekly bortezomib in combination therapy is efficacious, prolonged use is limited due to peripheral neuropathy (PN, 50-60%).

Conclusions:
The study met the primary endpoint: once weekly SVd significantly improved progression-free survival and overall response rate compared to twice weekly Vd. Rates of peripheral neuropathy were significantly reduced with numerically fewer deaths on SVd as opposed to Vd. The full dataset will be presented at the meeting. 

Clinical trial information: NCT03110562

 


MELETIOS A. DIMOPOULOS, MD

Meletios A. Dimopoulos, MD is Professor and Chairman of the Department of Clinical Therapeutics at the University Athens School of Medicine, Athens, Greece. He has been elected Vice Dean of the Medical School for the academic years 2007-2011 and Dean for the academic years 2011-2013. He obtained his medical degree from the University of Athens in 1985, completed a residency in internal medicine at the Royal Victoria Hospital, McGill University, Montreal, Canada and a fellowship in hematology/oncology at the University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA. Dr. Dimopoulos is a member of numerous scientific societies and has authored more than 650 publications (April 2013) in peer-reviewed journals, as well as numerous abstracts and several textbook chapters primarily focusing on plasma cell dyscrasias and genitourinary and gynecologic cancers.

 

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