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Clinical Trial Summary

This study is a multicenter, randomized, double-blind, placebo-controlled trial designed to assess the efficacy and safety of brexpiprazole as adjunctive therapy in the treatment of Major Depressive Disorder. A total of approximately 1100 subjects will be enrolled into the single-blind treatment for 6 weeks, and 480 incomplete responders will be randomized to brexpiprazole (2~3 mg) or placebo in a 1:1 ratio (approximately 240 subjects in each group), for treatment of 6 weeks.


Clinical Trial Description

Screening phase: It can last up to 28 days and will begin when informed consent is signed. The screening phase will serve the following purposes: 1) To review the inclusion and exclusion criteria; 2) To allow for appropriate washout of prohibited medications; 3) To establish a pretreatment baseline of critical outcome measures. Single-blind Prospective Treatment Phase (Phase A): It lasts 8 weeks; the purpose of the Phase A is to select the MDD subjects with incomplete response to ADT. Randomized Double-blind Treatment Phase (Phase B): It lasts 6 weeks; the purpose of Phase B is to compare the efficacy and safety of Brexpiprazole as adjunctive therapy in the treatment of MDD patients with incomplete response to ADT. Continued Treatment Phase after Phase A (Phase A+): It lasts 6 weeks; the purpose of Phase A+ is to continue treatment for subjects with complete response to ADT and not satisfying the criteria for Phase B. Follow-up Phase: It lasts 4 weeks and only applies to the subjects from Phase B; the purpose of Follow-up Phase is to collect the safety information after the last dose of IMP. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03487198
Study type Interventional
Source Otsuka Beijing Research Institute
Contact
Status Terminated
Phase Phase 3
Start date May 30, 2018
Completion date May 30, 2019

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