FDA puts selinexor on fast track for DLBCL


The Food and Drug Administration has granted fast track designation to selinexor for the treatment of diffuse large B-cell lymphoma (DLBCL).

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The designation is for selinexor to treat DLBCL patients who have received at least two prior therapies and who are not eligible for high-dose chemotherapy with stem cell rescue or chimeric antigen receptor (CAR) T-cell therapy.

Selinexor is being studied in the phase 2b SADAL trial (NCT02227251), which is enrolling patients with relapsed or refractory DLBCL who have received two to five prior therapies and are not eligible for stem cell transplant.

Top-line results from this trial are scheduled to be presented at the 2018 ASH Annual Meeting (Abstract 1677).

Selinexor is an oral selective inhibitor of nuclear export compound being developed by Karyopharm Therapeutics.

The company previously received fast track designation for selinexor to treat patients with penta-refractory multiple myeloma who have received at least three prior lines of therapy.

The FDA’s fast track program is designed to facilitate the development and expedite the review of products that are intended to treat serious conditions and have the potential to address unmet medical needs. Fast track designation provides developers with greater access to the FDA as well as eligibility for accelerated approval, priority review, and rolling review.

“Pending positive results from the phase 2b SADAL study, we plan to submit a second NDA [new drug application] to the FDA in the first half of 2019, with a request for accelerated approval, for oral selinexor as a potential new treatment for patients with relapsed or refractory DLBCL,” Sharon Shacham, PhD, founder, president, and chief scientific officer of Karyopharm, said in a statement.

In October, the FDA accepted an NDA for selinexor as a treatment for penta-refractory multiple myeloma. The agency granted the application priority review and set an action date of April 6, 2019.

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