Evidence map›Paper›PMID 32441836›Full record

ArticleClinical and translational science2020

Persistence of Antipsychotic Use After Clozapine Discontinuation: A Real-World Study Across Antipsychotics.

Noraly Stam, Heidi Taipale, Antti Tanskanen, Luka Isphording, Cynthia Okhuijsen-Pfeifer, Catharina C M Schuiling-Veninga, Jens H J Bos, Bert J Bijker, Jari Tiihonen, Jurjen J Luykx

Open access · goldAbstract read
In one paragraph

Article in Clinical and translational science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
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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

10 authors at 5 institutions in 3 countries.

Noraly StamDepartment of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Heidi TaipaleDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Antti TanskanenDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Luka IsphordingDepartment of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Cynthia Okhuijsen-PfeiferDepartment of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Catharina C M Schuiling-VeningaDepartment of Pharmacotherapy, Epidemiology, and Economics, Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands.
Jens H J BosDepartment of Pharmacotherapy, Epidemiology, and Economics, Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands.
Bert J BijkerDepartment of Pharmacotherapy, Epidemiology, and Economics, Faculty of Science and Engineering, University of Groningen, Groningen, The Netherlands.
Jari TiihonenDepartment of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Jurjen J LuykxDepartment of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
University of Groningen · NLUtrecht University · NLUniversity of Eastern Finland · FIKarolinska Institutet · SEUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although clozapine treatment is often discontinued due to limited efficacy or low tolerability, there is a lack of guidelines and evidence on treatment options after discontinuation of clozapine in patients with schizophrenia. Persistence has proven to be an adequate indicator for treatment effectiveness in patients with schizophrenia. The aim of this study was, therefore, to compare persistence of antipsychotic use between antipsychotic treatment options in patients after stopping clozapine treatment. Registry data from a prescription database representative of the Dutch population (1996-2017) was collected to investigate persistence in patients with schizophrenia who had been using clozapine for ≥ 90 days. Persistence with antipsychotics after clozapine discontinuation was analyzed using Cox-proportional hazard regression models. Our study population consisted of 321 participants, of whom 138 re-initiated clozapine and 183 started some other antipsychotic in the year after clozapine discontinuation (N = 518 antipsychotic use periods, N = 9,178 months). Second-generation antipsychotics (SGAs) as a group were associated with better persistence compared to first-generation antipsychotics (adjusted hazard ratio (aHR), 0.73; 95% confidence interval (CI) 0.57-0.93; P = 0.011). Compared with other antipsychotics, the following oral monotherapy antipsychotics were associated with significantly better persistence: restarting clozapine (aHR 0.48; 95% CI 0.32-0.71; P < 0.001) and switching to risperidone (aHR 0.52; 95% CI 0.32-0.84; P = 0.008) or olanzapine (aHR 0.55; 95% CI 0.35-0.87; P = 0.010). Sensitivity analyses confirmed the results. In conclusion, oral SGAs are associated with better persistence than alternative antipsychotic treatment options in patients discontinuing clozapine for undefined reasons. Especially clozapine (except in those with previous serious adverse reactions to clozapine), olanzapine and risperidone should be considered as oral monotherapy for these patients.

Indexed as

Drug MonitoringAdministration, OralAdultAntipsychotic AgentsClozapineDrug SubstitutionDrug Therapy, CombinationFemaleFollow-Up StudiesHumansMaleMiddle AgedNetherlandsOlanzapineRegistriesRetrospective StudiesAntipsychotic AgentsClozapineOlanzapineRisperidone

Identifiers

PMID32441836
PMCPMC7719358
OpenAlexW3027267031

What OpenQuestion holds

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LicenceCC BY-NC
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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.