...the Phase 3 portion of the randomized, double blind, placebo controlled, cross-over, SEAL study evaluating single agent, oral XPOVIO® (selinexor) versus matching placebo in patients with advanced unresectable dedifferentiated liposarcoma. The SEAL study met its primary endpoint of a statistically significant increase in progression-free survival (PFS); hazard ratio=0.70; p=0.023.