FAILED TRIAL: Ph 3 XPORT-EC-042 Trial of Selinexor in Endometrial Cancer Did Not Meet the Primary Endpoint of PFS improvement

“While the results we are announcing today fell short of our expectations, they do not diminish our confidence in the broader potential of selinexor and benefit of XPO1 inhibition,” said Richard Paulson, President and Chief Executive Officer of Karyopharm. “We remain focused on maximizing our opportunity in myelofibrosis and continuing to build on our profitable multiple myeloma business. Looking ahead, we expect several important milestones in our myelofibrosis program over the next year, including the submission of our sNDA, the potential addition of selinexor to relevant compendia guidelines and topline data from the 60 mg cohort of the Phase 2 SENTRY-2 trial, each anticipated in the second half of 2026.”

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