Evidence map›Paper›PMID 41958303›Full record

SynthesisPsychological medicine2026

Interventions to prevent antipsychotic-induced weight gain and metabolic complications in individuals with a first-episode psychosis and minimal antipsychotic exposure: a systematic review and meta-analysis.

Brian William O'Mahony, Tara Burke, Ruby Hamill, Louisa Gannon, Benjamin I Perry, Dan Siskind, Tomasz Pawełczyk, Donal O'Shea, Brian O'Donoghue

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Psychological medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

9 authors.

Brian William O'MahonyUniversity College Dublin, Dublin, Ireland.ORCID 0000-0002-1530-0167
Tara BurkeUniversity College Dublin, Dublin, Ireland.
Ruby HamillUniversity College Dublin, Dublin, Ireland.ORCID 0009-0000-5808-0208
Louisa GannonUniversity College Dublin, Dublin, Ireland.ORCID 0000-0003-2137-2631
Benjamin I PerryUniversity of Birmingham, UK.
Dan SiskindThe University of Queensland, Australia.ORCID 0000-0002-2072-9216
Tomasz PawełczykMedical University of Lodz: Uniwersytet Medyczny w Lodzi, Poland.
Donal O'SheaUniversity College Dublin, Dublin, Ireland.
Brian O'DonoghueUniversity College Dublin, Dublin, Ireland.ORCID 0000-0001-6240-6952

Funding

Health Research Board ICAT-2022-001
6 · The paper itself

Abstract

backgroundRapid weight gain commonly occurs following the onset of first-episode psychosis (FEP), leading to cardiometabolic disease. Most weight gain in FEP occurs in the first 3 months of treatment, offering a critical window for prevention. Despite this, most studies aiming to prevent antipsychotic-induced weight gain include people with chronic illness or people who have had lengthy exposure to antipsychotic medication. We aimed to synthesize and analyze the literature on interventions aimed at preventing antipsychotic-induced weight gain.

methodsWe conducted a systematic review in PsycInfo, MEDLINE, CINAHL, and EMBASE of studies that examined the effectiveness of interventions in preventing antipsychotic-induced weight gain in FEP. We examined their effect on weight gain and a range of cardiometabolic markers.

resultsWe screened 2,092 articles, 13 of which were eligible. Behavioral interventions, all three of which consisted of a multidisciplinary team approach, resulted in a mean of 3.05 kg less weight gain than treatment-as-usual (95% CI 1.36 kg to 4.73 kg). Pharmacological interventions displayed marked clinical and statistical heterogeneity, with each of the seven trials in adults using a different pharmacological intervention. Few studies collected comprehensive data on metabolic health. Only two pharmacological studies, and five studies in total, have been published since 2010.

conclusionsDespite the importance of preventing weight gain in FEP, there have been few recent studies investigating this topic. Our results indicate that multidisciplinary team interventions are effective in preventing weight gain in FEP and should be offered to all patients.

Indexed as

Antipsychotic AgentsMetabolic DiseasesPsychotic DisordersWeight GainHumansAntipsychotic AgentsantipsychoticBMIfirst episodemetabolicphysical healthpreventionpsychosisschizophreniaside effectweight gain

Identifiers

PMID41958303
PMCPMC13079223

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Registered trials

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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.