Treatment-resistant Depression Clinical Trial
Official title:
A Randomized, Double-blind, Multicenter, Active-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of Flexible Doses of Intranasal Esketamine Plus an Oral Antidepressant in Adult Subjects With Treatment-resistant Depression
The purpose of this study is to compare the efficacy and safety of switching treatment-resistant depression (TRD) subjects from a prior antidepressant treatment (to which they have not responded) to either intranasal esketamine plus a new oral antidepressant or switching to a new oral antidepressant plus intranasal placebo.
This is a randomized, double-blind (neither the researchers nor the subjects know what treatment the subject is receiving), active-controlled, multicenter study (more than 1 study site) in subjects with TRD to assess the efficacy, safety, and tolerability of flexible doses of intranasal esketamine plus a newly initiated oral antidepressant compared with a newly initiated oral antidepressant (active comparator) plus intranasal placebo. The study will consist of 3 phases: Screening/Prospective Observational Phase (4-7 weeks), Double-blind Induction Phase (4-weeks), Follow-up Phase (24-weeks). Subjects who rollover into a long-term maintenance study will not participate in the Follow-up Phase. The antidepressant treatment, as well as any other ongoing medications being taken for depression at screening (including adjunctive/ augmentation therapies), will continue unchanged, at the same dosage, from the start of Week 1 through the end of Week 4 of the screening/prospective observational phase. Subjects' safety will be monitored throughout the study. ;
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