P.331 Brexpiprazole and aripiprazole for the adjunctive treatment of major depressive disorder: post hoc analysis of completion rates in long-term studies

2020 ◽  
Vol 40 ◽  
pp. S193-S194
Author(s):  
C. Weiss ◽  
P. Zhang ◽  
R.A. Baker ◽  
S.R. Meehan ◽  
N. Hefting ◽  
...  
CNS Spectrums ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 203-204 ◽  
Author(s):  
Michael Thase ◽  
Arielle D. Stanford ◽  
Asli Memisoglu ◽  
William Martin ◽  
Amy Claxton ◽  
...  

AbstractIntroductionBuprenorphine/samidorphan (BUP/SAM), a combination of BUP (a µ-opioid receptor partial agonist and κ-antagonist) and SAM (a sublingually bioavailable µ-opioid antagonist), is an investigational opioid system modulator for depression. BUP/SAM has shown efficacy versus placebo as an adjunctive treatment for major depressive disorder (MDD) and a consistent safety profile in previously reported, placebo-controlled clinical studies.1,2Study Objective(s)1. To characterize the safety profile following long-term treatment with BUP/SAM2. To explore depression symptoms and remission rates in patients with MDD following long-term treatment with BUP/SAMMethodsFORWARD-2 (Clinicaltrials.gov ID: NCT02141399) enrolled patients who had participated in 1 of 4 controlled studies as well as de novo patients. All patients had a confirmed diagnosis of MDD, had a history of inadequate response to standard antidepressant therapies (ADTs), and had been treated with an adequate dose of an established ADT for ≥8weeks before BUP/SAM initiation. ADT dosage could be titrated, but the ADT could not be changed. During the study, patients received open-label, sublingual BUP/SAM 2mg/2mg as adjunctive treatment for up to 52weeks. Safety (primary objective) was assessed via adverse events (AEs), vital signs, laboratory analytes, and electrocardiography. Suicidal ideation or behavior (SIB) was evaluated by the Columbia Suicide Severity Rating Scale. Abuse potential, dependence, and withdrawal were assessed by AEs and the Clinical Opiate Withdrawal Scale. Exploratory efficacy endpoints included mean Montgomery–Åsberg Depression Rating Scale (MADRS) scores and remission rate (MADRS ≤10).ResultsOf 1454 total patients, 49% completed the 52-week study, 11% discontinued due to an AE, and 40% discontinued because of other reasons as of the interim data cutoff date (April 30, 2017). Most AEs were of mild/moderate severity. Serious AEs were reported in 3.2% of patients. AEs occurring in ≥10% of patients were nausea, headache, constipation, dizziness, and somnolence. There was no evidence of increased risk of SIB with BUP/SAM. Incidence of euphoria-related events was low (1.2%). After abrupt discontinuation of BUP/SAM, there was little evidence of withdrawal. BUP/SAM was not associated with meaningful changes in laboratory or metabolic parameters or in bodyweight. The mean MADRS score decreased from 22.9 (±9.7) at baseline to 9.8 (±8.8) after 52weeks. The remission rate at 52weeks was 52.5%.ConclusionsLong-term treatment with BUP/SAM did not reveal any new safety findings and confirmed that the risk of abuse and dependence with BUP/SAM was low. BUP/SAM maintained an antidepressant effect for up to 52weeks of treatment in patients with MDD.Funding Acknowledgements: Alkermes, Inc.


2017 ◽  
Vol 7 (5) ◽  
pp. 207-212 ◽  
Author(s):  
Lauren A. Diefenderfer ◽  
Courtney Iuppa

Abstract Brexpiprazole is an atypical antipsychotic that works as a partial agonist at serotonin 5-hydroxytryptamine1A and dopamine D2 receptors and an antagonist at serotonin 5-hydroxytryptamine2A. It has US Food and Drug Administration approval for monotherapy treatment of schizophrenia and adjunctive treatment to antidepressants for major depressive disorder. Two phase-3 clinical trials demonstrated efficacy and relatively fair tolerability with regard to adverse effects for each indication. Akathisia was frequently reported in the major depressive disorder trials but less so in the schizophrenia trials. Significant increases in body weight and triglycerides were seen across all studies. Brexpiprazole appears to be a viable option for treating an acute exacerbation of schizophrenia requiring hospitalization or adjunctive treatment of major depressive disorder in patients who showed an inadequate response to 1 to 3 antidepressants. Further clinical trials are warranted to determine the long-term efficacy of brexpiprazole, and comparison trials would be beneficial to establish its place in therapy.


CNS Spectrums ◽  
2017 ◽  
Vol 22 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Joyce Tsai ◽  
Michael E. Thase ◽  
Yongcai Mao ◽  
Daisy Ng-Mak ◽  
Andrei Pikalov ◽  
...  

ObjectiveThe aim of this post-hoc analysis was to evaluate the efficacy of lurasidone in treating patients with major depressive disorder (MDD) with mixed features who present with mild and moderate-to-severe levels of anxiety.MethodsThe data in this analysis were derived from a study of patients meeting the DSM–IV–TR criteria for unipolar MDD, with a Montgomery–Åsberg Depression Rating Scale (MADRS) total score ≥26, presenting with two or three protocol-defined manic symptoms, who were randomized to 6 weeks of double-blind treatment with either lurasidone 20–60 mg/day (n=109) or placebo (n=100). Anxiety severity was evaluated using the Hamilton Anxiety Rating Scale (HAM–A). To evaluate the effect of baseline anxiety on response to lurasidone, the following two anxiety groups were defined: mild anxiety (HAM–A≤14) and moderate-to-severe anxiety (HAM–A≥15). Change from baseline in MADRS total score was analyzed for each group using a mixed model for repeated measures.ResultsTreatment with lurasidone was associated with a significant week 6 change versus placebo in MADRS total score for patients with both mild anxiety (–18.4 vs. –12.8, p<0.01, effect size [ES]=0.59) and moderate-to-severe anxiety (–22.0 vs. –13.0, p<0.001, ES=0.95). Treatment with lurasidone was associated with a significant week 6 change versus placebo in HAM–A total score for patients with both mild anxiety (–7.6 vs. –4.0, p<0.01, ES=0.62), and moderate-to-severe anxiety (–11.4 vs. –6.1, p<0.0001, ES=0.91).ConclusionsIn this post-hoc analysis of an MDD with mixed features and anxiety population, treatment with lurasidone was associated with significant improvement in both depressive and anxiety symptoms in subgroups with mild and moderate-to-severe levels of anxiety at baseline.


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