Samylu Kaimas

Researchers are evaluating lumateperone as an additional treatment for adults aged 18 to 65 with major depressive disorder (MDD) who have not responded adequately to current antidepressant therapy. This phase 3, multicenter, randomized, double-blind, placebo-controlled study aims to assess the effectiveness and safety of lumateperone in patients diagnosed according to the DSM-5 criteria, including those with psychotic features. Participants must have moderate to severe depression and an ongoing major depressive episode lasting between 12 weeks and 18 months. Participants will be randomly assigned to receive either lumateperone 42 mg capsules or matching placebo capsules once daily during a six-week double-blind treatment period. Before treatment, there is a screening period of up to two weeks to confirm eligibility. After the treatment phase, there is a one-week safety follow-up visit to monitor participants after completing the study medication. Throughout the study, patients will be assessed using depression rating scales including the Montgomery-Asberg Depression Rating Scale (MADRS). Other evaluations include psychiatric interviews, symptom questionnaires, and safety monitoring for suicidal thoughts or behaviors. The study tracks changes in depression severity and safety outcomes from screening through treatment and follow-up, totaling approximately nine weeks of participation.