PMID- 33691517 OWN - NLM STAT- MEDLINE DCOM- 20220202 LR - 20220425 IS - 1461-7285 (Electronic) IS - 0269-8811 (Print) IS - 0269-8811 (Linking) VI - 35 IP - 8 DP - 2021 Aug TI - Two randomized, double-blind, placebo-controlled trials and one open-label, long-term trial of brexpiprazole for the acute treatment of bipolar mania. PG - 971-982 LID - 10.1177/0269881120985102 [doi] AB - BACKGROUND: Brexpiprazole is a dopamine/serotonin receptor partial agonist (D(2), 5-HT(1A)) and antagonist (5-HT(2A)) approved for treatment of schizophrenia and major depressive disorder (adjunct to antidepressants). AIMS: This study aimed to investigate brexpiprazole as monotherapy in acute mania (bipolar I disorder) in two short-term (ST) studies (study 080 and study 081) and one open-label (OL) extension (study 083). METHODS: ST studies were three-week randomized, double-blind, flexible dose (2-4 mg/day), placebo-controlled studies. The primary endpoint was mean change in Young Mania Rating Scale (YMRS) total score from baseline to day 21. The OL study was a 26-week flexible dose (2-4 mg/day) study for patients completing the ST studies. RESULTS: A total of 164 and 158 (study 080) and 170 and 162 (study 081) inpatients with DSM-5 mania with/without mixed features were randomized to placebo or brexpiprazole, respectively. The primary analyses did not show a statistically significant difference between brexpiprazole and placebo: study 080: least squares mean difference (95% confidence limits): 0.14 (-1.74, 2.03), p = 0.8797; study 081: -1.62 (-3.56, 0.32), p = 0.1011. OL study patients (n = 381) demonstrated a gradual improvement in YMRS total score. Akathisia was the only adverse event, with an incidence of ⩾5% with brexpiprazole and more than placebo in the ST studies, or ⩾5% in the OL study. Brexpiprazole was more efficacious in patients with impaired or no insight (predominantly EU patients) than in patients with excellent insight (predominantly US patients). CONCLUSIONS: Further studies are necessary to address the potential efficacy of brexpiprazole in acute mania, which should ensure that the study sample is severe enough (especially with regard to insight), and that the dose/titration schedule is not too modest. FAU - Vieta, Eduard AU - Vieta E AUID- ORCID: 0000-0002-0548-0053 AD - Hospital Clinic, Institute of Neuroscience, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Spain. FAU - Sachs, Gary AU - Sachs G AD - Massachusetts General Hospital, Boston, USA. FAU - Chang, Denise AU - Chang D AD - Otsuka Pharmaceutical Development and Commercialization, Inc., Princeton, USA. FAU - Hellsten, Johan AU - Hellsten J AD - H. Lundbeck A/S, Valby, Denmark. FAU - Brewer, Claudette AU - Brewer C AD - Otsuka Pharmaceutical Development and Commercialization, Inc., Princeton, USA. FAU - Peters-Strickland, Timothy AU - Peters-Strickland T AD - Otsuka Pharmaceutical Development and Commercialization, Inc., Princeton, USA. FAU - Hefting, Nanco AU - Hefting N AD - H. Lundbeck A/S, Valby, Denmark. LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20210310 PL - United States TA - J Psychopharmacol JT - Journal of psychopharmacology (Oxford, England) JID - 8907828 RN - 0 (Dopamine Agonists) RN - 0 (Quinolones) RN - 0 (Serotonin Agents) RN - 0 (Thiophenes) RN - 2J3YBM1K8C (brexpiprazole) SB - IM MH - Adult MH - Bipolar Disorder/*drug therapy/physiopathology MH - Dopamine Agonists/*administration & dosage/adverse effects/pharmacology MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Female MH - Humans MH - Male MH - Middle Aged MH - Psychiatric Status Rating Scales MH - Quinolones/*administration & dosage/adverse effects/pharmacology MH - Serotonin Agents/*administration & dosage/adverse effects/pharmacology MH - Thiophenes/*administration & dosage/adverse effects/pharmacology MH - Treatment Outcome PMC - PMC8366183 OTO - NOTNLM OT - Bipolar I disorder OT - brexpiprazole OT - clinical trial OT - dopamine OT - insight OT - serotonin receptor partial agonist and antagonist COIS- Data availability: To submit inquiries related to Otsuka clinical research, or to request access to individual participant data (IPD) associated with any Otsuka clinical trial, please visit https://clinical-trials.otsuka.com/. For all approved IPD access requests, Otsuka will share anonymized IPD on a remotely accessible data sharing platform. Declaration of conflicting interests: The authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: E.V. has received grants and served as consultant, advisor, or CME speaker for the following entities: AB-Biotics, Abbott, Allergan, Angelini, Dainippon Sumitomo Pharma, Galenica, Janssen, Lundbeck, Novartis, Otsuka, Richter, Sage, Sanofi-Aventis, and Takeda, outside the submitted work. G.S. reports consulting fees from AstraZeneca, Blackthorne, Intra-Cellular Therapies, Otsuka, Pfizer, Sunovion, Supernus, Takeda, and Teva outside the submitted work and is a full-time employee of Signant Health. D.C., C.B., and T.P.-S. are full-time employees of Otsuka Pharmaceutical Development and Commercialization, Inc., Princeton, NJ, USA. J.H. and N.H. are full-time employees of H. Lundbeck A/S, Valby, Denmark. EDAT- 2021/03/12 06:00 MHDA- 2022/02/03 06:00 PMCR- 2021/08/16 CRDT- 2021/03/11 05:39 PHST- 2021/03/12 06:00 [pubmed] PHST- 2022/02/03 06:00 [medline] PHST- 2021/03/11 05:39 [entrez] PHST- 2021/08/16 00:00 [pmc-release] AID - 10.1177_0269881120985102 [pii] AID - 10.1177/0269881120985102 [doi] PST - ppublish SO - J Psychopharmacol. 2021 Aug;35(8):971-982. doi: 10.1177/0269881120985102. Epub 2021 Mar 10.