Suvorexant Safety and Efficacy Ronald Farkas MD PhD Cross-Discipline Team Leader Division of Neurology Products OND/CDER/FDA FDA Preliminary Conclusions • Suvorexant is effective, but not safe at the higher doses mainly studied • The lower doses studied have similar efficacy and better safety • The lowest dose developed, 15 mg, may not be low enough for safe use • Phase 2 data suggest 10 mg may