Evidence map›Paper›PMID 29868849›Full record

SynthesisSchizophrenia bulletin2018

Effectiveness of Long-Acting Injectable vs Oral Antipsychotics in Patients With Schizophrenia: A Meta-analysis of Prospective and Retrospective Cohort Studies.

Taishiro Kishimoto, Katsuhiko Hagi, Masahiro Nitta, Stefan Leucht, Mark Olfson, John M Kane, Christoph U Correll

Registry-linked trialOpen access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Schizophrenia bulletin, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05473741 (Risk of Breakthrough Symptoms On Antipsychotic Maintenance Medication When Remitted Patients Are Treated With Long-Acting Injectable Medications), which is not on this map. Cited by 88 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 3 pooled it
10.2field-weighted citation impact, top 1% 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.

NCT05473741 completednot on this mapstarted 2023, after this paper: background citation

Risk of Breakthrough Symptoms On Antipsychotic Maintenance Medication When Remitted Patients Are Treated With Long-Acting Injectable Medications

TypeobservationalSponsorCentre for Addiction and Mental HealthRan2023 to 2025Enrolled51ConditionsSchizophrenia, Schizophrenia RelapseArmsSecond Generation Long-Acting Injectable Antipsychotic Medications
3 · Its place in the literature

Who cites it

88 citing papers in PubMed, 3 syntheses or guidelines pooled it, 181 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

28 more citing papers are in PubMed but not listed here.

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 7 institutions in 3 countries.

Taishiro KishimotoDepartment of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan.
Katsuhiko HagiDepartment of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY.
Masahiro NittaDepartment of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY.
Stefan LeuchtDepartment of Psychiatry and Psychotherapy, Klinikum rechts der Isar der Technischen Universität München, München, Germany.
Mark OlfsonNew York State Psychiatric Institute/Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York, NY.
John M KaneDepartment of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY.
Christoph U CorrellDepartment of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY.
Albert Einstein College of Medicine · USColumbia University · USKeio University · JPKlinikum rechts der Isar · DENorthwell Health · USSumitomo Dainippon Pharma (Japan) · JPZucker Hillside Hospital · US

Funding

Trials Operation Unit (OPERATIONS CORE)P30MH090590 · NIMH · FEINSTEIN INSTITUTE FOR MEDICAL RESEARCH · PI CORRELL, CHRISTOPH U · 2010 to 2014
$7.9M
NIMH NIH HHS P30 MH090590
6 · The paper itself

Abstract

Compared with oral antipsychotics (OAPs), long-acting injectable antipsychotics (LAIs) should improve medication adherence and reduce relapses in schizophrenia. However, meta-analyses of randomized trials and mirror-image studies yielded inconsistent results. Nonrandomized cohort studies with parallel comparisons of LAIs and OAPs offer a third design to examine this issue. We meta-analyzed cohort studies with ≥24 weeks duration and hospitalization data. Primary outcome was hospitalization rate, ie, number of hospitalizations per person-year. Secondary outcomes included hospitalization risk, ie, proportion of patients experiencing ≥1 hospitalizations, all-cause discontinuation, and total hospitalization days. Patient severity and/or chronicity at baseline was also meta-analyzed and explored as a potential effect size moderator. Altogether, 42 studies (n = 101 624; follow-up = 18.6 ± 10.0 mo) were meta-analyzed. LAIs were superior to OAPs regarding hospitalization rate (studies = 15, person-years = 68 009, rate ratio = 0.85, 95% CI = 0.78-0.93, P < .001) and all-cause discontinuations (studies = 10, n = 37 293, risk ratio = 0.78, 95% CI = 0.67-0.91, P = .001), but not regarding hospitalization risk (studies = 33, n = 51 733, risk ratio = 0.92, 95% CI = 0.84-1.00, P = .06), and hospitalization days (studies = 11, n = 21 328, Hedges' g = -0.05, 95% CI = -0.16 to 0.06, P = .39). Illness severity/chronicity was significantly greater in patients prescribed LAIs vs OAPs when all available information was pooled together (studies = 23, n = 61 806, Hedges' g = 0.15, 95% CI = 0.03-0.26, P = .01), but not when examined separately. In summary, this meta-analysis of cohort studies, which included patients that are broadly representative of clinical practice, indicates that LAIs are superior to OAPs. The lack of significant superiority of LAIs for hospitalization risk and hospital days needs to be interpreted in the context of naturalistic treatment selection with subsequently greater illness severity/chronicity in LAI-treated patients.

Indexed as

Administration, OralDelayed-Action PreparationsDrug MonitoringAdultAntipsychotic AgentsCohort StudiesHospitalizationHumansMiddle AgedOutcome Assessment, Health CareSchizophreniaYoung AdultAntipsychotic AgentsDelayed-Action Preparations

Identifiers

PMID29868849
PMCPMC5890463
OpenAlexW2740548674

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.