PMID- 20537396 OWN - NLM STAT- MEDLINE DCOM- 20110126 LR - 20220330 IS - 1573-2517 (Electronic) IS - 0165-0327 (Linking) VI - 126 IP - 3 DP - 2010 Nov TI - Asenapine for long-term treatment of bipolar disorder: a double-blind 40-week extension study. PG - 358-65 LID - 10.1016/j.jad.2010.04.005 [doi] AB - BACKGROUND: Asenapine is approved in the United States for acute treatment of manic or mixed episodes of bipolar I disorder with or without psychotic features. We report the results of long-term treatment with asenapine in patients with bipolar I disorder. METHODS: Patients completing either of two 3-week efficacy trials and a subsequent 9-week double-blind extension were eligible for this 40-week double-blind extension. Patients in the 3-week trials were randomized to flexible-dose asenapine (5 or 10mg BID), placebo, or olanzapine (5-20mg QD; included for assay sensitivity only). Patients entering the extension phase maintained their preestablished treatment; those originally randomized to placebo received flexible-dose asenapine (placebo/asenapine). Safety and tolerability endpoints included adverse events (AEs), extrapyramidal symptoms, laboratory values, and anthropometric measures. Efficacy, a secondary assessment, was measured as change in Young Mania Rating Scale (YMRS) total score from 3-week trial baseline to week 52 with asenapine or olanzapine; the placebo/asenapine group was assessed for safety only. RESULTS: Incidence of treatment-emergent AEs was 71.9%, 86.1%, and 79.4% with placebo/asenapine, asenapine, and olanzapine, respectively. The most frequent treatment-emergent AEs were headache and somnolence with placebo/asenapine; insomnia, sedation, and depression with asenapine; and weight gain, somnolence, and sedation with olanzapine. Among observed cases, mean +/- SD changes in YMRS total score at week 52 were -28.6 +/- 8.1 and -28.2 +/- 6.8 for asenapine and olanzapine, respectively. LIMITATIONS: The study did not have a long-term placebo group. CONCLUSIONS: In this 52-week extension in patients with bipolar mania, asenapine was well tolerated and long-term maintenance of efficacy was supported. CI - Copyright (c) 2010 Elsevier B.V. All rights reserved. FAU - McIntyre, Roger S AU - McIntyre RS AD - Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON, Canada. roger.mcintyre@uhn.on.ca FAU - Cohen, Miriam AU - Cohen M FAU - Zhao, Jun AU - Zhao J FAU - Alphs, Larry AU - Alphs L FAU - Macek, Thomas A AU - Macek TA FAU - Panagides, John AU - Panagides J LA - eng PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Affect Disord JT - Journal of affective disorders JID - 7906073 RN - 0 (Antipsychotic Agents) RN - 0 (Dibenzocycloheptenes) RN - 0 (Heterocyclic Compounds, 4 or More Rings) RN - 12794-10-4 (Benzodiazepines) RN - JKZ19V908O (asenapine) RN - N7U69T4SZR (Olanzapine) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Antipsychotic Agents/adverse effects/*therapeutic use MH - Benzodiazepines/adverse effects/therapeutic use MH - Bipolar Disorder/*drug therapy MH - Dibenzocycloheptenes MH - Double-Blind Method MH - Female MH - Heterocyclic Compounds, 4 or More Rings/adverse effects/*therapeutic use MH - Humans MH - Long-Term Care MH - Male MH - Middle Aged MH - Olanzapine MH - Psychiatric Status Rating Scales/statistics & numerical data MH - Psychometrics MH - Young Adult EDAT- 2010/06/12 06:00 MHDA- 2011/01/28 06:00 CRDT- 2010/06/12 06:00 PHST- 2009/12/15 00:00 [received] PHST- 2010/03/18 00:00 [revised] PHST- 2010/04/09 00:00 [accepted] PHST- 2010/06/12 06:00 [entrez] PHST- 2010/06/12 06:00 [pubmed] PHST- 2011/01/28 06:00 [medline] AID - S0165-0327(10)00341-1 [pii] AID - 10.1016/j.jad.2010.04.005 [doi] PST - ppublish SO - J Affect Disord. 2010 Nov;126(3):358-65. doi: 10.1016/j.jad.2010.04.005.