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Current Psychiatry Reviews

Editor-in-Chief

ISSN (Print): 1573-4005
ISSN (Online): 1875-6441

Review Article

Overview of Short-Term and Long-Term Safety of Brexpiprazole in Patients with Major Depressive Disorder and Inadequate Response to Antidepressant Treatment

Author(s): James C. Nelson, Peter Zhang, Aleksandar Skuban, Mary Hobart, Catherine Weiss, Emmanuelle Weiller and Michael E. Thase

Volume 12, Issue 3, 2016

Page: [278 - 290] Pages: 13

DOI: 10.2174/1573400512666160816095900

open access plus

Abstract

Background: Many patients with major depressive disorder (MDD) do not respond adequately to first-line antidepressant treatment (ADT). Adjunctive treatment with second-generation antipsychotics has demonstrated efficacy for patients with MDD, but is limited by tolerability and safety issues. The recently introduced serotonin-dopamine activity modulator, brexpiprazole, has demonstrated efficacy as an adjunctive treatment for MDD.

Objective/Method: We report tolerability and safety results for adjunctive brexpiprazole from four 6-week short-term (ST; pooled phase 2 and 3, placebo-controlled) and two 52-week long-term (LT; pooled, openlabel) studies.

Results: Approximately 90% of patients completed the ST studies, and 48.8% of patients completed the LT studies. In the ST studies, 2.9% of patients discontinued because of an adverse event (AE); in the LT studies, 14.1% of patients discontinued because of an AE. In the ST and LT studies, the most frequently reported treatment-emergent AEs (TEAEs) were akathisia (8.6% and 10.0%, respectively) and weight gain (7.3% and 25.5%, respectively). Rates of sedation and somnolence were low (ST and LT: sedation, 0.8% and 3.7%, respectively; somnolence, 3.4% and 9.4%, respectively). In the ST and LT studies, brexpiprazole was associated with small changes in metabolic parameters and moderate weight increase.

Conclusions: Collectively, these data suggest brexpiprazole is well tolerated as an adjunctive treatment for MDD.

Keywords: Adjunctive therapy, antipsychotics, brexpiprazole, major depressive disorder, safety, clinical trials.

Graphical Abstract

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