Testing Lumateperone Capsules as Additional Treatment in Adults With Major Depressive Disorder Not Responding to Antidepressants

What this Trial Is About

Researchers are conducting a multicenter, randomized, double-blind, placebo-controlled study to evaluate lumateperone as an additional treatment for adults with Major Depressive Disorder MDD who have not responded well to ongoing antidepressant therapy. The study focuses on patients diagnosed with MDD according to DSM-5 criteria, including those with psychotic features, who have experienced an inadequate response to at least two antidepressant treatments during their current major depressive episode. Participants will be randomly assigned to receive either lumateperone 42 mg capsules or matching placebo capsules taken orally once daily for six weeks during the double-blind treatment period. The trial includes three periods a screening period of up to two weeks to assess eligibility, the six-week treatment period, and a one-week safety follow-up period after the last dose to monitor participant safety. During the study, participants will undergo assessments including depression severity ratings using the Montgomery-Asberg Depression Rating Scale and the Clinical Global Impression Scale. Researchers will monitor symptoms, treatment adherence, and safety throughout the treatment and follow-up periods. Total participation spans approximately nine weeks, covering screening, treatment, and safety monitoring.

Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder