Conditions: Major Depressive Disorder
Keywords: OPC-34712 Major Depressive Disorder Adjunctive Treatment
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 773
Healthy volunteers: no

Brief summary:
This is a Double-blind study wherein patients with Major Depressive Disorder (MDD) will receive either from 1 to 3 mg a day of study medication (OPC-34712)or placebo (an inactive substance) in addition to an FDA approved antidepressant in order to determine if the study medication is effective as an add on treatment of MDD.

Detailed description:

Arms:
arm 1: OPC-34712 Tablets, Oral, 1 - 3 mg OPC-34712 + ADT arm 2: Placebo + ADT

Interventions: intervention 1: OPC-34712 intervention 2: Placebo intervention 3: ADT
Intervention descriptions: intervention 1: Tablets, Oral, 1 - 3 mg OPC-34712 intervention 2: Placebo intervention 3: None

Protocol document: