A Randomized, Double-blind, Multicenter, Placebo-controlled, Proof-of-Concept Study to Evaluate the Efficacy, Safety, and Tolerability of JNJ-89495120 as Monotherapy in Adult Participants With Major Depressive Disorder (MDD)

Inclusion Criteria: * Primary psychiatric diagnosis of recurrent major depressive disorder, without psychotic features, based on clinical assessment using diagnostic and statistical manual of mental disorders (DSM)-5 criteria and confirmed with the mini international neuropsychiatric interview (MINI) * Participant had to have at least one previous major depressive disorder (MDD) episode prior to their current episode * Were first diagnosed with depression before the age of 55 * Are in a current episode of depression: Episode length must be at least 2 months but not longer than 24 months * Hav…