A Study of Aticaprant as Adjunctive Therapy in Adult Participants With Major Depressive Disorder (MDD) With Moderate-to-severe Anhedonia and Inadequate Response to Current Antidepressant Therapy

Depression is a common and serious psychiatric disorder which is a leading cause of disability worldwide and is associated with elevated mortality and suicide risk. Aticaprant (JNJ-67953964) is a once daily, highly selective kappa opioid receptor (KOR) antagonist, with demonstrated selectivity over mu opioid receptor (MOR) and delta opioid receptor (DOR) being developed for adjunctive treatment of major depressive disorder (MDD) with moderate-to-severe anhedonia (ANH+). The study consists of a screening phase (up to 30 days prior to randomization), double-blind treatment phase (43 days), and follow-up phase (up to 14 days). The total duration of the study will be up to 87 days. Safety evaluations including adverse events, physical examinations, urine drug test, alcohol breath tests, and clinical laboratory tests will be assessed at specific time points during this study.