About Us


Karyopharm Therapeutics Inc. is a commercial-stage pharmaceutical company pioneering novel cancer therapies and dedicated to the discovery, development, and commercialization of novel first-in-class drugs directed against nuclear export and related targets for the treatment of cancer and other major diseases. Karyopharm's Selective Inhibitor of Nuclear Export (SINE) compounds function by binding with and inhibiting the nuclear export protein XPO1. The company was founded in 2008 with a vision of pioneering a potentially new approach to treating patients with certain blood cancers.


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