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The efficacy of extended-release levomilnacipran in moderate to severe major depressive disorder: secondary and post-hoc analyses from a randomized, double-blind, placebo-controlled study.

ABSTRACT: Levomilnacipran (1S, 2R-milnacipran) is a potent and selective serotonin and norepinephrine reuptake inhibitor that is Food and Drug Administration approved for once-daily treatment of major depressive disorder in adults. Secondary and post-hoc analyses were carried out on data from a positive 10-week, randomized, double-blind, placebo-controlled, parallel-group, multicenter, proof-of-concept trial (EudraCT Number: 2006-002404-34) on 75 or 100 mg/day levomilnacipran extended release (ER). Included outpatients (18-70 years) met the criteria for a major depressive episode. There was a statistically significant difference in favor of levomilnacipran ER versus placebo in change from baseline to week 10 on every Montgomery Åsberg Depression Rating Scale (MADRS) single item (mixed-effects model for repeated measures; P<0.05) and most Hamilton Depression Rating Scale (HAMD17) single items. Significantly more levomilnacipran ER versus placebo patients (P < 0.05) achieved 'complete' (MADRS ? 5; 24 vs. 10%) and 'sustained' (MADRS ? 10 in Weeks 4-10; 16 vs. 10%) remission, Sheehan Disability Scale (SDS) response (total score ? 12 and each item score ? 4; 52 vs. 35%) and remission (total score ? 6 and each item score ? 2; 26 vs. 17%), and combined symptomatic (MADRS) and functional (SDS) remission (19 vs. 8%). Treatment effects of similar magnitude were observed in the severe depression subgroup (MADRS ? 30). These results demonstrate the benefit of levomilnacipran ER over placebo for patients with symptomatic and functional impairment associated with major depressive disorder.

SUBMITTER: Montgomery SA

PROVIDER: S-EPMC4235391 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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The efficacy of extended-release levomilnacipran in moderate to severe major depressive disorder: secondary and post-hoc analyses from a randomized, double-blind, placebo-controlled study.

Montgomery Stuart A SA Mansuy Lucilla L Ruth Adam C AC Li Dayong D Gommoll Carl C

International clinical psychopharmacology 20140101 1

Levomilnacipran (1S, 2R-milnacipran) is a potent and selective serotonin and norepinephrine reuptake inhibitor that is Food and Drug Administration approved for once-daily treatment of major depressive disorder in adults. Secondary and post-hoc analyses were carried out on data from a positive 10-week, randomized, double-blind, placebo-controlled, parallel-group, multicenter, proof-of-concept trial (EudraCT Number: 2006-002404-34) on 75 or 100 mg/day levomilnacipran extended release (ER). Includ ...[more]

PMID: 24172160

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Project description:In this post hoc analysis, improvement in functional impairment in patients with major depressive disorder (MDD) treated with levomilnacipran extended release (ER) was evaluated by assessing shifts from more severe to less severe functional impairment categories on individual Sheehan Disability Scale (SDS) subscales.SDS data were pooled from 5 phase II/III studies conducted between December 2006 and March 2012 of levomilnacipran ER versus placebo in adult patients with MDD (DSM-IV-TR criteria). Proportions of patients shifting from moderate-extreme baseline impairment (score ? 4) to mild-no impairment (score ? 3) at end of treatment were assessed for each SDS subscale. Proportions of patients shifting from marked-extreme (score ? 7) baseline impairment to moderate-no (score ? 6) or mild-no impairment (score ? 3) at end of treatment, and shifts in which patients worsened from moderate-no to marked-extreme impairment, were also evaluated.A significantly higher proportion of patients treated with levomilnacipran ER than placebo-treated patients improved from more severe categories of functional impairment at baseline to less severe impairment categories across all SDS subscales: work/school, social life, and family life/home responsibilities (P < .01). Depending on the SDS subscale, 48%-55% of levomilnacipran ER-treated patients with moderate-extreme impairment at baseline improved to mild or no impairment, compared with no more than 40% of placebo patients on any subscale. Almost half (42%-47%) of levomilnacipran ER-treated patients versus only about one-third (29%-34%) of placebo patients improved from marked-extreme to mild or no impairment across functional domains.These results suggest that functional improvement was observed across the SDS functional domains. To our knowledge, this is the first such categorical analysis of functional improvement, as measured by the SDS, for an antidepressant.ClinicalTrials.gov identifiers: NCT00969709, NCT01377194, NCT00969150, and NCT01034462 and EudraCT identifier: 2006-002404-34.

Project description:ObjectiveLevomilnacipran ER is a potent and selective serotonin and norepinephrine reuptake inhibitor (SNRI) approved for the treatment of major depressive disorder (MDD). Efficacy and safety have been evaluated in five Phase II/III studies, four of which met the pre-specified primary efficacy outcome. Results of the negative trial (ClinicalTrials.gov NCT00969150) are reported here.MethodsA Phase III randomized, double-blind, placebo-controlled trial comparing flexible-dose levomilnacipran ER 40-120 mg/day with placebo was conducted in outpatients with MDD. Patients met the DSM-IV-TR criteria for MDD, had a current episode of depression of at least 4 weeks' duration, and a Montgomery-Åsberg Depression Rating Scale (MADRS) total score ≥30. The study comprised a 1-week, single-blind, placebo lead-in, 8-week double-blind treatment, and a 2-week down-taper. The primary and secondary efficacy measures were change from baseline to Week 8 in MADRS and Sheehan Disability Scale (SDS) total scores, respectively, analyzed using a mixed-effects model for repeated measures approach. Safety outcomes included adverse events (AEs), laboratory and vital sign measures, the Columbia-Suicide Severity Rating Scale, and the Arizona Sexual Experiences Scale (ASEX).ResultsThree hundred and fifty-five patients received the study drug and had ≥1 post-baseline MADRS total score assessment (ITT Population); 81.9% of placebo and 77.1% of levomilnacipran ER patients completed the study. For levomilnacipran ER vs placebo, MADRS (-15.7 vs -14.2) and SDS (-8.8 vs -8.2) total score improvements, and rates of MADRS response (38.5% vs 34.8%) and remission (25.3% vs 23.8%) were numerically greater but differences were not statistically significant. Levomilnacipran ER was generally well tolerated. More levomilnacipran ER patients vs placebo reported AEs; the most common AEs for levomilnacipran ER were nausea (17%) and headache (16%). Mean changes in most safety measures were small and similar between groups. There were no meaningful differences in total ASEX scores between groups.LimitationsShort duration of treatment, inclusion and exclusion criteria, and lack of an active comparator.ConclusionNumerical improvements for levomilnacipran ER vs placebo were detected in this study, but the differences were not statistically significant; levomilnacipran ER was generally well tolerated.

Project description:Purpose:To explore the potential factors impacting the efficacy of venlafaxine extended release (ER) and treatment differences between 75 mg/day and 75-225 mg/day dose in patients with major depressive disorder (MDD). Methods:We performed exploratory post hoc subgroup analyses of a randomized, double-blind, placebo-controlled study conducted in Japan. A total of 538 outpatients aged 20 years or older with a primary diagnosis of MDD who experienced single or recurrent episodes were randomized into three groups: fixed-dose, flexible-dose, or placebo. Venlafaxine ER was initiated at 37.5 mg/day and titrated to 75 mg/day for both fixed-dose and flexible-dose group, and to 225 mg/day for flexible-dose group (if well tolerated). Efficacy endpoints were changes from baseline at Week 8 using the Hamilton Rating Scale for Depression-17 items (HAM-D17) total score, Hamilton Rating Scale for Depression-6 items score, and Montgomery-Asberg Depression Rating Scale total score. The following factors were considered in the subgroup analyses: sex, age, HAM-D17 total score at baseline, duration of MDD, duration of current depressive episode, history of previous depressive episodes, history of previous medications for MDD, and CYP2D6 phenotype. For each subgroup, an analysis of covariance model was fitted and the adjusted mean of the treatment effect and corresponding 95% CI were computed. Due to the exploratory nature of the investigation, no statistical hypothesis testing was used. Results:Venlafaxine ER improved symptoms of MDD compared with placebo in most subgroups. The subgroup with a long duration of MDD (>22 months) consistently showed greater treatment benefits in the flexible-dose group than in the fixed-dose group. Conclusion:These results suggest that a greater treatment response to venlafaxine ER (up to 225 mg/day) can be seen in patients with a longer duration of MDD. Further investigations are needed to identify additional factors impacting the efficacy of venlafaxine ER.

Project description:ObjectiveMajor depressive disorder is often chronic, with relapse and recurrence common. Levomilnacipran extended-release is a potent and selective serotonin and reuptake inhibitor approved in the United States for treatment of major depressive disorder in adults. The objective of this study (NCT01085812) was to evaluate the efficacy, safety, and tolerability of levomilnacipran extended-release in the prevention of relapse in patients with major depressive disorder.DesignA 24-week Phase III randomized, double-blind, controlled trial comparing levomilnacipran extended-release 40-120mg/day with placebo for relapse prevention in patients with major depressive disorder who had responded to 12-week, open-label treatment with levomilnacipran extended-release. Statistical power was calculated on the assumption that 38 percent of placebo and 20 percent of levomilnacipran extended-release patients would relapse.SettingThirty-six outpatient study centers throughout the United States and Canada.ParticipantsOf 348 patients who met randomization criteria and entered double-blind treatment, three discontinued prior to treatment, 112 were randomized to placebo, and 233 to levomilnacipran extended-release.MeasurementsPrimary outcomeTime to relapse was analyzed using the Cox proportional hazard-regression model with treatment group and baseline Montgomery-Åsberg Depression Rating Scale score as explanatory variables. Safety was also evaluated.ResultsTime to relapse was longer for levomilnacipran extended-release versus placebo (hazard ratio [95% confidence interval] = 0.68 [0.40][1.17]), but the treatment difference was not statistically significant (P=0.165). A relatively low percentage of patients from either group relapsed (placebo=20.5%, levomilnacipran extended-release=13.9%).ConclusionThis study did not detect between-treatment group differences, potentially due to lower than expected relapse rates in the placebo group. Levomilnacipran extended-release was generally well tolerated.

Dataset Information

The efficacy of extended-release levomilnacipran in moderate to severe major depressive disorder: secondary and post-hoc analyses from a randomized, double-blind, placebo-controlled study.

Publications

The efficacy of extended-release levomilnacipran in moderate to severe major depressive disorder: secondary and post-hoc analyses from a randomized, double-blind, placebo-controlled study.

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