Evidence map›Paper›PMID 33496984›Full record

ArticleHuman psychopharmacology2021

Safety of switching to brexpiprazole in Japanese patients with schizophrenia: A post-hoc analysis of a long-term open-label study.

Jun Ishigooka, Ken Inada, Kazunari Niidome, Kazuo Aoki, Yoshitsugu Kojima, Shuichi Iwashita, Sakiko Yamada

Open access · hybridAbstract read
In one paragraph

Article in Human psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. New Antipsychotic Medications in the Last Decade.Current psychiatry reports · 2021
    Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Jun IshigookaInstitute of CNS Pharmacology, Tokyo, Japan.
Ken InadaDepartment of Psychiatry, Tokyo Women's Medical University School of Medicine, Tokyo, Japan.ORCID 0000-0002-3073-4588
Kazunari NiidomeDepartment of Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan.ORCID 0000-0001-9947-393X
Kazuo AokiDepartment of Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan.
Yoshitsugu KojimaDepartment of Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan.
Shuichi IwashitaHeadquarters of Clinical Development, Otsuka Pharmaceutical Co., Ltd., Osaka, Japan.ORCID 0000-0002-0057-9337
Sakiko YamadaDepartment of Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan.ORCID 0000-0001-7913-4041
Otsuka (Japan) · JPTokyo Institute of Psychiatry · JPTokyo Women's Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo determine the long-term safety of switching to brexpiprazole from aripiprazole or non-aripiprazole dopamine antagonists.

methodsPost-hoc analysis of 56-week study of Japanese outpatients with schizophrenia switched to brexpiprazole 2 mg/day over 4-week switching period with further titration (1-4 mg/day) allowed during the 52-week, open-label period. Major assessment items: total/low-density lipoprotein (LDL)-/high-density lipoprotein (HDL)-cholesterol, triglycerides, blood glucose, body weight and prolactin. Secondary evaluations were related to efficacy, treatment emergent adverse events (TEAEs), extrapyramidal symptoms, and corrected QT interval (QTc).

results84/186 (45.2%) patients (aripiprazole, 32.9%; non-aripiprazole, 54.8%) discontinued treatment over 56 weeks mainly because of consent withdrawal/adverse events. From baseline to Week 56, both groups showed minimal mean changes in total/LDL-/HDL-cholesterol, triglycerides, and glucose levels and a slight increase in mean (SD) body weight (aripiprazole, 1.1 [4.4] kg; non-aripiprazole, 0.4 [4.6] kg). Mean prolactin levels increased slightly in the aripiprazole group, but decreased in the non-aripiprazole group. Symptom severity scores decreased similarly in both groups. TEAEs occurred in 161/186 (86.6%) patients (aripiprazole, 84.1% [serious, 9.8%]; non-aripiprazole, 88.5% [serious, 14.4%]). Few changes occurred in extrapyramidal symptom scales or QTc interval.

conclusionsSwitching to brexpiprazole is associated with a low long-term risk for metabolic abnormalities (including weight gain), hyperprolactinemia, extrapyramidal symptoms and QTc changes and minimal changes in psychiatric symptoms.

Indexed as

Antipsychotic AgentsQuinolonesSchizophreniaAripiprazoleHumansJapanThiophenesTreatment OutcomeAntipsychotic AgentsAripiprazolebrexpiprazoleQuinolonesThiophenesbrexpiprazoleJapanesesafetyschizophreniaswitching

Identifiers

PMID33496984
PMCPMC8365679
OpenAlexW3124482856

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.