Evidence map›Paper›PMID 34934318›Full record

ArticleNeuropsychiatric disease and treatment2021

Treatment Continuation of Asenapine or Olanzapine in Japanese Schizophrenia Patients: A Propensity Score Matched Study.

Haruna Matsuzaki, Masakazu Hatano, Miko Iwata, Shigeki Yamada

Open access · goldAbstract read
In one paragraph

Article in Neuropsychiatric disease and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Review
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

4 authors at 1 institution in 1 country.

Haruna MatsuzakiDepartment of Clinical Pharmacy, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
Masakazu HatanoDepartment of Clinical Pharmacy, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.ORCID 0000-0001-7032-878X
Miko IwataDepartment of Clinical Pharmacy, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
Shigeki YamadaDepartment of Clinical Pharmacy, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
Fujita Health University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAsenapine is a second-generation antipsychotic agent that is classified as a multi-acting receptor-targeted antipsychotic and is similar to olanzapine. Our study aimed to compare the treatment continuation rate and reason for discontinuation of asenapine or olanzapine in schizophrenia using real-world data.

methodsThis design was a retrospective study. The primary endpoint was Kaplan-Meier estimates of the continuation rate at six months, with the propensity score method applied to adjust for potential confounders.

resultsA total of 95 patients were analyzed in this study (asenapine, n = 46; olanzapine, n = 49). Matched data were adjusted to consider six covariates (age, sex, chlorpromazine equivalent, diazepam equivalent, history of clozapine use, and history of modified electro convulsive therapy). The continuation rate at six months was 27.3% (95% CI, 15.6-47.6) in the asenapine group and 50.8% (95% CI, 34.3-75.3) in the olanzapine group (hazard ratio, 0.41; 95% CI, 0.21-0.82; P = 0.0088 by the Log rank test) in matched data. Cases of discontinuation because of the lack of efficacy were almost as frequent for asenapine (13.0%) as for olanzapine (10.2%). Discontinuation due to bitter taste (6.5%) and burden of the dosing method (6.5%) were observed only with asenapine, whereas anticholinergic side effects such as dry mouth (4.1%) and constipation (2.0%) were observed only with olanzapine.

conclusionThe low continuation rate of asenapine in real-world data may be related to specific factors such as bitter taste and burden of the dosing method.

Indexed as

antipsychotic agentsasenapineolanzapinepropensity scoreretrospective studiesschizophrenia

Identifiers

PMID34934318
PMCPMC8684434
OpenAlexW4200403712

What OpenQuestion holds

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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.