RecruitingPhase 2Drug trialMulticenter Study to Assess the Efficacy and Safety of LB-102 in the Treatment of Adult Patients With BP1MDE.Phase II study for patients with Bipolar 1 Disorder experiencing major depressive episode. Patient eligible for enrollment will be randomized (like flipping a coin) to either active drug (LB-102 or placebo). Treatment is for 6 weeks.