Summary:
The purpose of this study is to evaluate the efficacy of JNJ-61393215 as adjunctive treatment compared to adjunctive placebo, as assessed by the change from baseline to week 6 on a 17-item Hamilton Depression Rating Scale (HDRS-17) in participants with major depressive disorder (MDD) with anxious distress with a score greater than or equal to (>=) 2 on item 26 or 27 of the Inventory of Depressive Symptomatology, Clinician Rating -30 (IDS-C30), who have a suboptimal response to current treatment with a standard antidepressant.
Criteria:- Participants must have a body mass index (BMI) between 18 and 36 kilogram per meter square (kg/m^2)
- Participants must have a primary diagnostic and statistical manual of mental disorders, 5th edition (DSM-5) diagnosis of major depressive disorder (MDD) with anxious distress, as assessed by the mini international neuropsychiatric inventory 7.0. Plus (MINI). Participants with a diagnosis of comorbid generalized anxiety disorder (GAD), post-traumatic stress disorder, persistent depressive disorder, attention deficit hyperactivity disorder (ADHD), social anxiety disorder or nicotine/caffeine dependence may be included, if MDD is primary diagnosis
- Participants must have an inventory of depressive symptomatology, clinician rating-30 (IDS-C30) total score greater than or equal to (>=) 35 (moderate to severe depression)
- Participant must not have received more than 3 failed antidepressant treatments (of adequate dose and duration), including their current treatment, in the current episode of depression, as documented by the massachusetts general hospital antidepressant treatment history questionnaire (MGH-ATRQ)
- Participant must be currently receiving 1 of the following antidepressants for at least 6 weeks duration at screening, at an adequate therapeutic dose, as determined by the MGH-ATRQ and should remain on a stable dose throughout the study: bupropion, citalopram, escitalopram, sertraline, paroxetine, venlafaxine, desvenlafaxine, duloxetine, fluoxetine, vilazodone, vortioxetine, mirtazapine, agomelatine, nortriptyline, imipramine, amitriptyline and levomilnacipran
- Participants must have a suboptimal response (improvement <50%) to the antidepressant used as their current treatment, as measured by the MGH-ATRQ
- A woman of childbearing potential must have a negative serum pregnancy test at screening and a negative urine pregnancy test before the first dose
Qualified Participants May Receive:
Monetary compensation for participating.