Evidence map›Paper›PMID 36721972›Full record

SynthesisThe international journal of neuropsychopharmacology2023

Effect of 5-HT1A Receptor Partial Agonists of the Azapirone Class as an Add-On Therapy on Psychopathology and Cognition in Schizophrenia: A Systematic Review and Meta-Analysis.

Risa Yamada, Ayumu Wada, Andrew Stickley, Yuma Yokoi, Tomiki Sumiyoshi

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in The international journal of neuropsychopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Augmentation Therapy With Serotonin 5-HTNeuropsychopharmacology reports · 2025
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Article
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  11. Review
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  13. Augmentation therapy with serotoninSchizophrenia research. Cognition · 2023
    Article
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

5 authors at 2 institutions in 1 country.

Risa YamadaDepartment of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
Ayumu WadaDepartment of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
Andrew StickleyDepartment of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
Yuma YokoiDepartment of Educational Promotion, Clinical Research and Education Promotion Division, National Center of Neurology and Psychiatry, National Center Hospital, Kodaira, Tokyo, Japan.
Tomiki SumiyoshiDepartment of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
National Center of Neurology and Psychiatry · JPNational Institute of Mental Health · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are ongoing efforts to examine the effect of 5-HT1A receptor partial agonists as an add-on therapy for several symptoms of schizophrenia. By conducting a systematic review and meta-analysis, we evaluated whether augmentation with 5-hydroxtrypatamine (5-HT)1A partial agonists of the azapirone class improves psychotic symptoms and attention/processing speed, a key domain of cognition, in patients with schizophrenia.

methodsA literature search was performed from 1987 to February 25, 2022, to identify randomized controlled trials. The standardized mean difference (SMD) with 95% confidence intervals (CI) was calculated when there were 2 or more studies. Seven studies, involving 435 patients, met the inclusion criteria.

resultsRandom-effects model meta-analyses revealed that add-on therapy with buspirone or tandospirone had a significant beneficial effect on overall psychotic symptoms (SMD = -1.13, 95% CI = -1.98 to -0.27) and positive symptoms (SMD = -0.72, 95% CI =-1.31 to -0.12), while the effect on negative symptoms did not reach statistical significance (SMD = -0.93, 95% CI = -1.90 to 0.04). A significant positive effect was also observed on attention/processing speed (SMD = 0.37, 95% CI = 0.12 to 0.61).

conclusionsThese findings support the idea that some compounds that stimulate 5-HT1A receptors provide an effective pharmacologic enhancer in the treatment of schizophrenia. Further clinical trials are warranted to determine the benefits of the adjunctive use of 5-HT1A partial agonists in ameliorating symptoms and improving functional outcomes in patients with schizophrenia or other psychiatric disorders.

Indexed as

Antipsychotic AgentsMental DisordersSchizophreniaCognitionHumansReceptor, Serotonin, 5-HT1ASerotonin 5-HT1 Receptor AgonistsAntipsychotic AgentsReceptor, Serotonin, 5-HT1ASerotonin 5-HT1 Receptor Agonists5-HT1A receptor partial agonistatypical antipsychotic drugscognitive dysfunctionpsychopathologyschizophrenia

Identifiers

PMID36721972
PMCPMC10109009
OpenAlexW4318754602

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.