LOS ANGELES--(BUSINESS WIRE)--Glancy Prongay & Murray LLP (“GPM”) announces an investigation on behalf of Karyopharm Therapeutics, Inc. (“Karyopharm” or the “Company”) (NASDAQ: KPTI) investors concerning the Company and its officers’ possible violations of federal securities laws.
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If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Lesley Portnoy, Esquire, at 310-201-9150, Toll-Free at 888-773-9224, or by email to email@example.com, or visit our website at www.glancylaw.com.
On February 22, 2019, the U.S. Food and Drug Administration (“FDA”) released a briefing document which contradicted the Company’s assertions that its treatment selinexor was “well-tolerated” by patients. Specifically, the FDA revealed that a previous trial of the Company’s selinexor yielded “worse overall survival” and concluded that selinexor “is associated with significant toxicity” and “limited efficacy.”
On this news, shares of Karyopharm fell $3.90 per share, or over 43%, to close at $5.07 per share on February 22, 2019, thereby injuring investors.
If you purchased Karyopharm securities, have information, or would like to learn more about these claims, or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Lesley Portnoy, of GPM, 1925 Century Park East, Suite 2100, Los Angeles, CA 90067 at 310-201-9150, Toll-Free at 888-773-9224, or visit our website at www.glancylaw.com. If you inquire by email please include your mailing address, telephone number, and the number of shares purchased.
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