Helene Gjervig Hansen, Helene Speyer, Anne Emilie Stürup, Carsten Hjorthøj, Dost Öngür, Merete Nordentoft, Nikolai Albert
{"title":"Use and discontinuation of antipsychotic medication in 20 years following a first episode of schizophrenia: results from the OPUS trial.","authors":"Helene Gjervig Hansen, Helene Speyer, Anne Emilie Stürup, Carsten Hjorthøj, Dost Öngür, Merete Nordentoft, Nikolai Albert","doi":"10.1017/S0033291724002678","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Short-term exposure to antipsychotics has proven to be beneficial. However, naturalistic studies are lacking regarding the long-term use of antipsychotics. This study aimed to investigate changes in use of antipsychotics over 20 years after a first-episode schizophrenia.</p><p><strong>Methods: </strong>This study is part of the Danish OPUS trial (1998-2000), including 496 participants with first-episode schizophrenia. Participants were reassessed four times over 20 years. The main outcomes were days on medication, redeemed prescriptions of clozapine, psychiatric hospitalizations, and employment.</p><p><strong>Results: </strong>At the 20-year follow-up, an attrition of 71% was detected. In total, 143 out of 496 participated, with 36% (<i>n</i> = 51) in remission-of-psychotic-symptoms-off-medication. The lowest number of days on medication (mean [s.d.], 339 [538] days) was observed in this group over 20 years. Register data on redeemed antipsychotics were available for all trial participants (<i>n</i> = 416). Individuals in treatment with antipsychotics (<i>n</i> = 120) at the 20-year follow-up had spent significantly more days in treatment (5405 [1857] <i>v.</i> 1434 [1819] mean days, <i>p</i> = 0.00) and more had ever redeemed a prescription of clozapine (25% <i>v.</i> 7.8%, <i>p</i> = 0.00) than individuals who had discontinued antipsychotics (<i>n</i> = 296). Further, discontinuers had significantly higher employment at the 20-year follow-up (28.4% <i>v.</i> 12.5%, <i>p</i> = 0.00).</p><p><strong>Conclusion: </strong>In a cohort of individuals with first-episode schizophrenia, 36% were in remission-of-psychotic-symptoms-off-medication. However, high attrition was detected, potentially affecting study results by inflating results from individuals with favorable outcomes. From register data, free from attrition, approximately 30% were in treatment with antipsychotics, and 70% had discontinued antipsychotics. Individuals in treatment had the least favorable outcomes, implying greater illness severity.</p>","PeriodicalId":20891,"journal":{"name":"Psychological Medicine","volume":" ","pages":"1-11"},"PeriodicalIF":5.9000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Psychological Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1017/S0033291724002678","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PSYCHIATRY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Short-term exposure to antipsychotics has proven to be beneficial. However, naturalistic studies are lacking regarding the long-term use of antipsychotics. This study aimed to investigate changes in use of antipsychotics over 20 years after a first-episode schizophrenia.
Methods: This study is part of the Danish OPUS trial (1998-2000), including 496 participants with first-episode schizophrenia. Participants were reassessed four times over 20 years. The main outcomes were days on medication, redeemed prescriptions of clozapine, psychiatric hospitalizations, and employment.
Results: At the 20-year follow-up, an attrition of 71% was detected. In total, 143 out of 496 participated, with 36% (n = 51) in remission-of-psychotic-symptoms-off-medication. The lowest number of days on medication (mean [s.d.], 339 [538] days) was observed in this group over 20 years. Register data on redeemed antipsychotics were available for all trial participants (n = 416). Individuals in treatment with antipsychotics (n = 120) at the 20-year follow-up had spent significantly more days in treatment (5405 [1857] v. 1434 [1819] mean days, p = 0.00) and more had ever redeemed a prescription of clozapine (25% v. 7.8%, p = 0.00) than individuals who had discontinued antipsychotics (n = 296). Further, discontinuers had significantly higher employment at the 20-year follow-up (28.4% v. 12.5%, p = 0.00).
Conclusion: In a cohort of individuals with first-episode schizophrenia, 36% were in remission-of-psychotic-symptoms-off-medication. However, high attrition was detected, potentially affecting study results by inflating results from individuals with favorable outcomes. From register data, free from attrition, approximately 30% were in treatment with antipsychotics, and 70% had discontinued antipsychotics. Individuals in treatment had the least favorable outcomes, implying greater illness severity.
期刊介绍:
Now in its fifth decade of publication, Psychological Medicine is a leading international journal in the fields of psychiatry, related aspects of psychology and basic sciences. From 2014, there are 16 issues a year, each featuring original articles reporting key research being undertaken worldwide, together with shorter editorials by distinguished scholars and an important book review section. The journal''s success is clearly demonstrated by a consistently high impact factor.