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Xenoport Drops Spasticity Drug, Reboots Horizant

By Marie Powers
Staff Writer

Tuesday, May 21, 2013
Shares of Xenoport Inc. (NASDAQ:XNPT) dropped almost to the bottom of their 52-week range early Monday, opening at $5.04 after the company terminated its late stage arbaclofen placarbil (AP, previously XP19986) program in spasticity due to multiple sclerosis (MS) after a pivotal Phase III trial failed to demonstrate statistically significant improvement compared to placebo.

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