Karyopharm Therapeutics shares are trading lower after the company announced topline results from its Phase 3 XPORT-EC-042 trial did not meet its primary endpoint of progression free survival.

Karyopharm Therapeutics, Inc.

Karyopharm Therapeutics, Inc.

KPTI

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Karyopharm Therapeutics shares are trading lower after the company announced topline results from its Phase 3 XPORT-EC-042 trial did not meet its primary endpoint of progression free survival.