Publications by authors named "Christoph U. Correll"

Background: The best pharmacological treatment practices for relapse prevention in patients with first-episode schizophrenia are unclear. We aimed to assess different treatment strategies used before and after the first relapse, and their associations with subsequent relapse risk.

Methods: In this population-based cohort study, we enrolled individuals (aged ≤45 years) with first-episode schizophrenia who were hospitalised and subsequently relapsed between 1996 and 2014 from the nationwide Finnish Hospital Discharge Register.

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To evaluate weight change with a combination of olanzapine and samidorphan (OLZ/SAM) versus olanzapine by pooling data across clinical studies. This study was an individual patient data (IPD) meta-analysis of clinical trial data. EMBASE, MEDLINE, and PsycInfo were searched for randomized clinical trials (≥12 weeks) in adults with schizophrenia or bipolar I disorder in which weight change from baseline was the primary or secondary end point.

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Antipsychotic treatment is associated with cardiometabolic risks that may be especially detrimental to children and adolescents. In this Danish population-based cohort study, we included individuals with psychiatric diagnoses who initiated antipsychotics in 2000-2021 at age 6-31 years. We assessed the risk of cardiometabolic adverse events up to 10 years following incident exposure to antipsychotics, compared to age- and sex-matched unexposed individuals with psychiatric diagnoses.

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Importance: Amid escalating mental health challenges among young individuals, intensified by the COVID-19 pandemic, analyzing postpandemic trends is critical.

Objective: To examine mental health care utilization and prescription rates for children, adolescents, and young adults before and after the COVID-19 pandemic.

Design, Setting, And Participants: This population-based time trend study used an interrupted time series analysis to examine mental health care and prescription patterns among the French population 25 years and younger.

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The United States Food and Drug Administration approved xanomeline-trospium combination for schizophrenia on September-26-2024. We conducted a PRISMA 2020-compliant systematic review with random-effects meta-analysis on the efficacy and safety of xanomeline-trospium in randomized controlled trials in patients with schizophrenia (MEDLINE, EMBASE, Cochrane, PsycINFO, October-01-2024). Co-primary outcomes were Positive And Negative Syndrome Scale (PANSS) total score (standardized mean difference=SMD), and all-cause discontinuation (risk ratio=RR).

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Background: Trace amine-associated receptor 1 (TAAR1) agonists offer a new approach, but there is uncertainty regarding their effects, exact mechanism of action and potential role in treating psychosis.

Aims: To evaluate the available evidence on TAAR1 agonists in psychosis, using triangulation of the output of living systematic reviews (LSRs) of animal and human studies, and provide recommendations for future research prioritisation.

Method: This study is part of GALENOS (Global Alliance for Living Evidence on aNxiety, depressiOn and pSychosis).

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Tardive Dyskinesia (TD) can occur in people exposed to dopamine receptor antagonists (DRAs). Its clinical management remains challenging. We conducted a systematic review/random-effects network meta-analysis (NMA) searching PubMed/MEDLINE/PsycINFO/ClinicalTrials.

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There is growing interest in lifestyle interventions as stand-alone and add-on therapies in mental health care due to their potential benefits for both physical and mental health outcomes. We evaluated lifestyle interventions focusing on physical activity, diet, and sleep in adults with severe mental illness (SMI) and the evidence for their effectiveness. To this end, we conducted a meta-review and searched major electronic databases for articles published prior to 09/2022 and updated our search in 03/2024.

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Article Synopsis
  • - The study evaluated the long-term safety, tolerability, and effect of olanzapine/samidorphan (OLZ/SAM) in patients with schizophrenia, schizophreniform disorder, or bipolar I disorder for up to 4 years, following the ENLIGHTEN clinical program.
  • - Out of 524 enrolled patients, the majority had schizophrenia, and common adverse effects included weight gain, headache, and anxiety, with minimal changes in metabolic parameters over the treatment duration.
  • - The treatment showed stable scores on the Clinical Global Impressions-Severity scale, indicating maintained symptom control and a long-term safety profile consistent with previous studies.
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Article Synopsis
  • * Both male and female schizophrenia patients faced higher risks of all-cause mortality, suicide, and natural causes, but no significant differences were found between the sexes in these risks.
  • * Young females (<40) showed a notably higher mortality risk compared to older females, while males faced a much greater risk of dying from neurological disorders than females, indicating a need for better healthcare interventions.
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Background: Persons with schizophrenia are excluded from psychedelic-assisted therapy due to concerns about the risk of triggering or worsening psychosis. However, there is limited meta-analytic data on the risk of psychedelic-induced psychosis in individuals with pre-existing psychotic disorders.

Methods: We conducted a systematic review, meta-analysis, and overview of reviews to assess the incidence of psychedelic-induced psychosis and symptom exacerbation in schizophrenia.

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Objective: To identify the COVID-19 pandemic impact on well-being/mental health, coping strategies, and risk factors in adolescents worldwide.

Method: This study was based on an anonymous online multi-national/multi-language survey in the general population (representative/weighted non-representative samples, 14-17 years of age), measuring change in well-being (World Health Organization-Five Well-Being Index [WHO-5]/range = 0-100) and psychopathology (validated composite P-score/range = 0-100), WHO-5 <50 and <29, pre- vs during COVID-19 pandemic (April 26, 2020-June 26, 2022). Coping strategies and 9 a priori- defined individual/cumulative risk factors were measured.

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Background And Hypothesis: Duration of untreated psychosis (DUP) has been linked to worse mental health outcomes in psychotic disorders. We meta-analytically studied the relationship between "long" vs. "short" DUP and mental health outcomes.

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Introduction: The impact of antipsychotic use on weight gain and eating disorder-related psychopathology in adult inpatients with anorexia nervosa (AN) is unclear.

Methods: Consecutively hospitalized adults with AN were retrospectively analyzed. Co-primary outcomes were body mass index (BMI) and weekly weight change.

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Background: Bipolar disorder (BD) is a chronic, severe mental illness with a significant socio-economic burden. The early recognition of BD requires reliable and valid instruments.

Objective: We evaluated the psychometric attributes of the Bipolar Prodrome Symptom Interview and Scale-Full Prospective (BPSS-FP)-Chinese version.

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Article Synopsis
  • Antipsychotic polypharmacy, or the use of multiple antipsychotic medications, is common in clinical practice, but it carries a higher risk of side effects and there's little proof that it works better than using a single medication.
  • A systematic review analyzed 517 studies involving over 4.4 million individuals to determine the prevalence and trends of antipsychotic polypharmacy across different mental disorders.
  • The findings revealed that 24.8% of individuals were using multiple antipsychotics, with higher rates in those with schizophrenia spectrum disorders and significant regional variations, showing an overall trend of increasing polypharmacy from 1970 to 2023.
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Depression is associated with premature mortality, but evidence is mainly derived from Western countries. Very limited research has evaluated shortened lifespan in depression using life-years-lost (LYLs), a recently developed mortality metric taking into account the illness onset for life expectancy estimation. Temporal trends of differential mortality gap are understudied.

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Background: A double-blind, randomized, active-controlled, parallel-group, noninferiority trial (NCT03345342) demonstrated that paliperidone palmitate once-every-6-months (PP6M) was noninferior to paliperidone palmitate once-every-3-months (PP3M) in preventing relapse in clinically stable adults with schizophrenia. This post hoc analysis assessed efficacy and safety following transition to PP6M from paliperidone once-monthly (PP1M) versus PP3M.

Methods: Adults with schizophrenia who were clinically stable on moderate/high doses of PP1M or PP3M were randomly assigned 1:2 to dorsogluteal PP3M or PP6M treatment for 12 months.

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Article Synopsis
  • Virtual reality exposure therapy (VRET) shows promise for treating anxiety disorders in adolescents, particularly those with school anxiety, though research is limited.
  • A pilot study with 10 adolescents revealed that exposure to a VR school environment increased state anxiety but led to significant reductions in anxiety symptoms after repeated sessions.
  • The sense of "being there" in the VR environment was linked to anxiety levels and treatment outcomes, suggesting that VRET can be an effective approach for managing school-related anxiety in teens.
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