PMID- 37933521 OWN - NLM STAT- MEDLINE DCOM- 20240202 LR - 20240206 IS - 1440-1819 (Electronic) IS - 1323-1316 (Linking) VI - 78 IP - 2 DP - 2024 Feb TI - Adjunctive brexpiprazole 1 mg and 2 mg daily for Japanese patients with major depressive disorder following inadequate response to antidepressants: a phase 2/3, randomized, double-blind (BLESS) study. PG - 113-122 LID - 10.1111/pcn.13615 [doi] AB - AIMS: Inadequate antidepressant response interrupts effective treatment of major depressive disorder (MDD). The BLESS study evaluates the dosage, efficacy, and safety of brexpiprazole adjunctive therapy in Japanese patients with inadequate antidepressant therapy (ADT) response. METHODS: This placebo-controlled, randomized, multicenter, parallel-group phase 2/3 study randomized Japanese MDD patients (Hamilton Rating Scale for Depression 17-item total score >/= 14; historical inadequate response to 1-3 ADTs) with inadequate response to 8-week single-blind, prospective SSRI/SNRI treatment to 6-week adjunctive treatment with brexpiprazole 1 mg, 2 mg, or placebo. The primary endpoint was change in Montgomery-Asberg Depression Rating Scale (MADRS) total score from baseline. Secondary endpoints included MADRS response, remission rate, and Clinical Global Impression-Improvement score. Safety was comprehensively evaluated, especially regarding antipsychotic adverse events (AEs). RESULTS: Of 1194 screened patients, 740 were randomized and 736 (1 mg, n = 248; 2 mg, n = 245; placebo, n = 243) had >/=1 baseline/post-baseline MADRS total score. The LSM (SE) change from baseline in MADRS total score at Week 6 by MMRM analysis was -8.5 (0.47) with brexpiprazole 1 mg, -8.2 (0.47) with brexpiprazole 2 mg, and -6.7 (0.47) with placebo (placebo-adjusted LSM difference [95% CI]: 1 mg, -1.7 [-3.0, -0.4]; P = 0.0089; 2 mg, -1.4 [-2.7, -0.1]; P = 0.0312). Secondary efficacy results supported the primary endpoint. Brexpiprazole was generally well tolerated. CONCLUSION: Brexpiprazole 1 mg daily was an appropriate starting dose and both 1 mg and 2 mg daily were effective and well tolerated as adjunctive therapy for Japanese MDD patients not adequately responsive to ADT. CI - (c) 2023 The Authors. Psychiatry and Clinical Neurosciences published by John Wiley & Sons Australia, Ltd on behalf of Japanese Society of Psychiatry and Neurology. FAU - Kato, Masaki AU - Kato M AUID- ORCID: 0000-0001-6727-7272 AD - Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan. FAU - Shiosakai, Masako AU - Shiosakai M AD - Clinical Development, Headquarters of Clinical Development Otsuka Pharmaceutical Co. Ltd., Tokyo, Japan. FAU - Kuwahara, Kazuo AU - Kuwahara K AD - Clinical Development, Headquarters of Clinical Development Otsuka Pharmaceutical Co. Ltd., Tokyo, Japan. FAU - Iba, Katsuhiro AU - Iba K AD - Clinical Development, Headquarters of Clinical Development Otsuka Pharmaceutical Co. Ltd., Osaka, Japan. FAU - Shimada, Yuki AU - Shimada Y AD - Clinical Development, Headquarters of Clinical Development Otsuka Pharmaceutical Co. Ltd., Tokyo, Japan. FAU - Saito, Mizuki AU - Saito M AD - Clinical Development, Headquarters of Clinical Development Otsuka Pharmaceutical Co. Ltd., Tokyo, Japan. FAU - Isogai, Yuki AU - Isogai Y AUID- ORCID: 0009-0003-3483-3174 AD - Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan. FAU - Sekine, Daisuke AU - Sekine D AD - Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan. FAU - Aoki, Kazuo AU - Aoki K AD - Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan. FAU - Koga, Nobuyuki AU - Koga N AD - Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokushima, Japan. FAU - Higuchi, Teruhiko AU - Higuchi T AD - Japan Depression Center, Tokyo, Japan. AD - National Center of Neurology and Psychiatry, Tokyo, Japan. LA - eng GR - N/A/Otsuka Pharmaceutical Co., Ltd./ PT - Clinical Trial, Phase II PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20231201 PL - Australia TA - Psychiatry Clin Neurosci JT - Psychiatry and clinical neurosciences JID - 9513551 RN - 2J3YBM1K8C (brexpiprazole) RN - 0 (Antidepressive Agents) RN - 0 (Thiophenes) RN - 0 (Quinolones) SB - IM MH - Humans MH - *Depressive Disorder, Major/drug therapy MH - Prospective Studies MH - Japan MH - Single-Blind Method MH - Drug Therapy, Combination MH - Antidepressive Agents/adverse effects MH - Treatment Outcome MH - Double-Blind Method MH - *Thiophenes MH - *Quinolones OTO - NOTNLM OT - Japanese OT - adjunctive therapy OT - antipsychotic OT - brexpiprazole OT - major depressive disorder EDAT- 2023/11/07 06:45 MHDA- 2024/02/02 06:43 CRDT- 2023/11/07 04:33 PHST- 2023/10/27 00:00 [revised] PHST- 2023/09/07 00:00 [received] PHST- 2023/11/04 00:00 [accepted] PHST- 2024/02/02 06:43 [medline] PHST- 2023/11/07 06:45 [pubmed] PHST- 2023/11/07 04:33 [entrez] AID - 10.1111/pcn.13615 [doi] PST - ppublish SO - Psychiatry Clin Neurosci. 2024 Feb;78(2):113-122. doi: 10.1111/pcn.13615. Epub 2023 Dec 1.