PRINCETON, N.J. & MARLBOROUGH, Mass.--(BUSINESS WIRE)--Otsuka Pharmaceutical Development & Commercialization, Inc. (Otsuka) and Sunovion Pharmaceuticals Inc. (Sunovion) today announced that the first patient has been enrolled in a Phase 2/3 clinical study to evaluate ulotaront (SEP-363856), a trace amine-associated receptor 1 (TAAR1) agonist with 5-HT1A agonist activity, as an adjunctive therapy in the treatment of adults living with major depressive disorder (MDD). Ulotaront, which is also