Merck (NYSE:MRK), known as MSD outside the United States and Canada, provided an update on the development program for suvorexant, the company's investigational orexin receptor antagonist, which, if approved, will be a new mechanism for the treatment of insomnia. The two pivotal Phase III efficacy trials for suvorexant have been completed and, based on the positive results of these studies, Merck plans to file a New Drug Application (NDA) for suvorexant with the U.S. Food and Drug Administration (FDA) in 2012.
Both Phase III studies were multicenter, randomized, double-blind, placebo-controlled clinical trials that evaluated suvorexant compared to placebo in adult patients ages 18 years and older. The primary endpoint was change from baseline in subjective total sleep time and time to sleep onset, wake time after persistent sleep onset, and latency to onset of persistent sleep at one and three months. Merck plans to submit these data for presentation at major medical meetings later this year... Merck's Press Release -
