This is a Study to Determine the Effect of Multiple Doses of an Investigational Drug, Taken by Mouth, in People With Narcolepsy-cataplexy. Accepting Both Males and Females Ages of 18 Years to 55 Years. This Study Will be Conducted in the US and Will Require Approximately 13 Weeks Participation.
Conditions
Interventions
- DRUG: SEP363856
- DRUG: Placebo
Sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.