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Usta Saglam NG, Duz MB, Salman Yilmaz S, Ozen M, Balcioglu I. Comparison of microRNA expression levels in patients with schizophrenia before and after electroconvulsive therapy. Psychiatr Genet 2024; 34:79-85. [PMID: 38842000 DOI: 10.1097/ypg.0000000000000371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
OBJECTIVE Exploring the role of microRNAs in the antipsychotic efficacy of electroconvulsive therapy (ECT) will contribute to understanding the underlying mechanism through which ECT exerts its therapeutic effects. The primary objective of this study was to identify microRNA alterations before and after ECT in patients with schizophrenia. METHODS We compared microarray-based microRNA profiles in peripheral blood from eight patients with schizophrenia before and after ECT and eight healthy controls. Then, we aimed to validate selected differentially expressed microRNAs in 30 patients with schizophrenia following a course of ECT, alongside 30 healthy controls by using quantitative reverse-transcription PCR. RESULTS Microarray-based expression profiling revealed alterations in 681 microRNAs when comparing pre- and post-ECT samples. Subsequent quantitative reverse-transcription PCR analysis of the selected microRNAs (miR-20a-5p and miR-598) did not reveal any statistical differences between pre- and post-ECT samples nor between pre-ECT samples and those of healthy controls. CONCLUSION As neuroepigenetic studies on ECT are still in their infancy, the results reported in this study are best interpreted as exploratory outcomes. Additional studies are required to explore the potential epigenetic mechanisms underlying the therapeutic efficacy of ECT.
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Affiliation(s)
| | - Mehmet Bugrahan Duz
- Department of Medical Genetics, Istanbul Memorial Hospital
- Department of Medical Genetics, Istanbul Arel University
| | - Seda Salman Yilmaz
- Department of Medical Genetics, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa
- Department of Medical Services and Techniques Medical Monitoring Techniques Pr., Vocational School of Health Services, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Mustafa Ozen
- Department of Medical Genetics, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
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Agid O, Crespo-Facorro B, de Bartolomeis A, Fagiolini A, Howes OD, Seppälä N, Correll CU. Overcoming the barriers to identifying and managing treatment-resistant schizophrenia and to improving access to clozapine: A narrative review and recommendation for clinical practice. Eur Neuropsychopharmacol 2024; 84:35-47. [PMID: 38657339 DOI: 10.1016/j.euroneuro.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/26/2024]
Abstract
Clozapine is the only approved antipsychotic for treatment-resistant schizophrenia (TRS). Although a large body of evidence supports its efficacy and favorable risk-benefit ratio in individuals who have failed two or more antipsychotics, clozapine remains underused. However, variations in clozapine utilization across geographic and clinical settings suggest that it could be possible to improve its use. In this narrative review and expert opinion, we summarized information available in the literature on the mechanisms of action, effectiveness, and potential adverse events of clozapine. We identified barriers leading to discouragement in clozapine prescription internationally, and we proposed practical solutions to overcome each barrier. One of the main obstacles identified to the use of clozapine is the lack of appropriate training for physicians: we highlighted the need to develop specific professional programs to train clinicians, both practicing and in residency, on the relevance and efficacy of clozapine in TRS treatment, initiation, maintenance, and management of potential adverse events. This approach would facilitate physicians to identify eligible patients and offer clozapine as a treatment option in the early stage of the disease. We also noted that increasing awareness of the benefits of clozapine among healthcare professionals, people with TRS, and their caregivers can help promote the use of clozapine. Educational material, such as leaflets or videos, could be developed and distributed to achieve this goal. The information provided in this article may be useful to improve disease burden and support healthcare professionals, patients, and caregivers navigating the complex pathways to TRS management.
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Affiliation(s)
- Ofer Agid
- Centre for Addiction and Mental Health, University of Toronto, Canada
| | - Benedicto Crespo-Facorro
- Department of Psychiatry, School of Medicine, University Hospital Virgen del Rocío-IBiS-CSIC, Sevilla, Spain, Centro de Investigación Biomédica en Red en Salud Mental (CIBERSAM), Sevilla, Spain
| | - Andrea de Bartolomeis
- University of Naples Federico II, Department of Neuroscience, Reproductive Science, and Odontostomatology. Laboratory of Molecular and Translational Psychiatry. Unit of Treatment Resistant Psychosis, Naples, Italy; Staff Unesco Chair at University of Naples Federico II, Italy
| | | | - Oliver D Howes
- IoPPN, King's College London, De Crespigny Park, London, United Kingdom; Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, Du Cane Road, London, United Kingdom
| | - Niko Seppälä
- Wellbeing Services in Satakunta, Department of Psychiatry, Pori, Finland and Medical Consultant, Viatris, Finland
| | - Christoph U Correll
- The Zucker Hillside Hospital, Department of Psychiatry, Northwell Health, Glen Oaks, New York, United States; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Department of Psychiatry and Molecular Medicine, Hempstead, New York, United States; Charité - Universitätsmedizin Berlin, Department of Child and Adolescent Psychiatry, Augustenburger Platz 1, Berlin 13353, Germany; German Center for Mental Health (DZPG), Partner Site Berlin, Berlin, Germany.
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Qubad M, Dupont G, Hahn M, Martin SS, Puntmann V, Nagel E, Reif A, Bittner RA. When, Why and How to Re-challenge Clozapine in Schizophrenia Following Myocarditis. CNS Drugs 2024:10.1007/s40263-024-01100-4. [PMID: 38951464 DOI: 10.1007/s40263-024-01100-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/03/2024] [Indexed: 07/03/2024]
Abstract
Clozapine-induced myocarditis (CIM) is among the most important adverse events limiting the use of clozapine as the most effective treatment for schizophrenia. CIM necessitates the immediate termination of clozapine, often resulting in its permanent discontinuation with considerable detrimental effects on patients' psychopathology and long-term outcome. Consequently, a clozapine re-challenge after CIM is increasingly regarded as a viable alternative, with published reports indicating a success rate of approximately 60%. However, published cases of re-challenges after CIM remain limited. Here, we provide a narrative review of the current state of research regarding the epidemiology, pathophysiology, risk factors, diagnosis and clinical management of CIM as well as a synthesis of current recommendations for re-challenging patients after CIM. This includes a step-by-step guide for this crucial procedure based on the current evidence regarding the pathophysiology and risk factors for CIM. Slow dose titration regimes and addressing risk factors including concomitant valproate and olanzapine are crucial both to prevent CIM and to ensure a safe and successful re-challenge. Furthermore, we discuss the utility of C-reactive protein, troponin, N-terminal-pro hormone and brain natriuretic peptide, therapeutic drug-monitoring and cardiac magnetic resonance imaging for CIM screening and diagnosis as well as for post-CIM re-challenges.
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Affiliation(s)
- Mishal Qubad
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University Frankfurt, University Hospital, Frankfurt, Germany.
| | - Gabriele Dupont
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Martina Hahn
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
- Department of Mental Health, Varisano Hospital Frankfurt Hoechst, Frankfurt, Germany
| | - Simon S Martin
- Department of Radiology, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Valentina Puntmann
- Department of Cardiology, Institute for Experimental and Translational Cardiovascular Imaging, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Eike Nagel
- Department of Cardiology, Institute for Experimental and Translational Cardiovascular Imaging, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University Frankfurt, University Hospital, Frankfurt, Germany
| | - Robert A Bittner
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University Frankfurt, University Hospital, Frankfurt, Germany.
- Ernst Strüngmann Institute for Neuroscience (ESI) in Cooperation with Max Planck Society, Frankfurt, Germany.
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O'Donoghue B, Piacenza F, Plapp H, Siskind D, Lyne J. Response rates to sequential trials of antipsychotic medications according to algorithms or treatment guidelines in psychotic disorders. A systematic review and meta-analysis. Schizophr Res 2024; 268:193-204. [PMID: 38493023 DOI: 10.1016/j.schres.2024.02.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND There is a relative lack of research evaluating the outcomes when treatment guidelines or algorithms for psychotic disorders are followed. This systematic review and meta-analysis determined the response rates to antipsychotic medications at different stages of these algorithms and whether these response rates differ in first episode cohorts. METHODS Data sources: A systematic search strategy was conducted across four databases PubMed, EMBASE, PsycINFO (Ovid) and CINAHL. Studies that had sequential trials of different antipsychotic medications were included. A meta-analysis of proportions was performed using random effects models and sub-group analysis in first episode psychosis studies. RESULTS Of the 4078 unique articles screened, fourteen articles, from nine unique studies, were eligible and included 2522 participants. The proportion who experienced a response to any antipsychotic in the first stage of an algorithm was 0.53 (95 % C.I.:0.38,0.68) and this decreased to 0.26 (95 % C.I.:0.15,0.39) in the second stage. When clozapine was used in the third stage, the proportion that achieved a response was 0.43 (95 % C.I. 0.19, 0.69) compared to 0.26 (95 % C.I.:0.05,0.54) if a different antipsychotic was used. Four studies included 907 participants with a first episode of psychosis and the proportions that achieved a response were: 1st stage: 0.63 (95 % C.I.: 0.45, 0.79); 2nd stage: 0.34 (95 % C.I.:0.16,0.55); clozapine 3rd stage: 0.45 (95 % C.I.:0.0,0.97), different antipsychotic 3rd stage: 0.15 (95 % C.I.,0.01,0.37). DISCUSSION These findings support the recommendation to have a trial of clozapine after two other antipsychotic medications have been found to be ineffective.
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Affiliation(s)
- Brian O'Donoghue
- Department of Psychiatry, University College Dublin, Ireland; Department of Psychiatry, St Vincent's University Hospital, Dublin, Ireland; Department of Psychiatry, Royal College of Surgeons, Ireland; Centre for Youth Mental Health, University of Melbourne, Australia.
| | | | - Helena Plapp
- Department of Psychiatry, St Vincent's University Hospital, Dublin, Ireland; Orygen, Melbourne, Australia
| | - Dan Siskind
- Metro South Addiction and Mental Health Service, Brisbane, QLD, Australia; University of Queensland, School of Clinical Medicine, Brisbane, QLD, Australia; Physical and Mental Health Stream, Queensland Centre for Mental Health Research, Brisbane, QLD, Australia
| | - John Lyne
- Department of Psychiatry, Royal College of Surgeons, Ireland; Health Service Executive, Newcastle Hospital, Wicklow, Ireland
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Sone D, Young A, Shinagawa S, Tsugawa S, Iwata Y, Tarumi R, Ogyu K, Honda S, Ochi R, Matsushita K, Ueno F, Hondo N, Koreki A, Torres-Carmona E, Mar W, Chan N, Koizumi T, Kato H, Kusudo K, de Luca V, Gerretsen P, Remington G, Onaya M, Noda Y, Uchida H, Mimura M, Shigeta M, Graff-Guerrero A, Nakajima S. Disease Progression Patterns of Brain Morphology in Schizophrenia: More Progressed Stages in Treatment Resistance. Schizophr Bull 2024; 50:393-402. [PMID: 38007605 PMCID: PMC10919766 DOI: 10.1093/schbul/sbad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
BACKGROUND AND HYPOTHESIS Given the heterogeneity and possible disease progression in schizophrenia, identifying the neurobiological subtypes and progression patterns in each patient may lead to novel biomarkers. Here, we adopted data-driven machine-learning techniques to identify the progression patterns of brain morphological changes in schizophrenia and investigate the association with treatment resistance. STUDY DESIGN In this cross-sectional multicenter study, we included 177 patients with schizophrenia, characterized by treatment response or resistance, with 3D T1-weighted magnetic resonance imaging. Cortical thickness and subcortical volumes calculated by FreeSurfer were converted into z scores using 73 healthy controls data. The Subtype and Stage Inference (SuStaIn) algorithm was used for unsupervised machine-learning analysis. STUDY RESULTS SuStaIn identified 3 different subtypes: (1) subcortical volume reduction (SC) type (73 patients), in which volume reduction of subcortical structures occurs first and moderate cortical thinning follows, (2) globus pallidus hypertrophy and cortical thinning (GP-CX) type (42 patients), in which globus pallidus hypertrophy initially occurs followed by progressive cortical thinning, and (3) cortical thinning (pure CX) type (39 patients), in which thinning of the insular and lateral temporal lobe cortices primarily happens. The remaining 23 patients were assigned to baseline stage of progression (no change). SuStaIn also found 84 stages of progression, and treatment-resistant schizophrenia showed significantly more progressed stages than treatment-responsive cases (P = .001). The GP-CX type presented earlier stages than the pure CX type (P = .009). CONCLUSIONS The brain morphological progressions in schizophrenia can be classified into 3 subtypes, and treatment resistance was associated with more progressed stages, which may suggest a novel biomarker.
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Affiliation(s)
- Daichi Sone
- Department of Psychiatry, Jikei University School of Medicine, Tokyo, Japan
- Department of Clinical and Experimental Epilepsy, Queen Square Institute of Neurology, University College London, London, UK
| | - Alexandra Young
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | | | - Sakiko Tsugawa
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Yusuke Iwata
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Ryosuke Tarumi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Kamiyu Ogyu
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Shiori Honda
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Ryo Ochi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Karin Matsushita
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Fumihiko Ueno
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Nobuaki Hondo
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Akihiro Koreki
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | | | - Wanna Mar
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Nathan Chan
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Teruki Koizumi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hideo Kato
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Kusudo
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Vincenzo de Luca
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Philip Gerretsen
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Gary Remington
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Mitsumoto Onaya
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Yoshihiro Noda
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Masahiro Shigeta
- Department of Psychiatry, Jikei University School of Medicine, Tokyo, Japan
| | | | - Shinichiro Nakajima
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
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Berger SJ, Hofer A. [Safety aspects during treatment with clozapine: : Adverse effects, titration, and therapeutic drug monitoring - a narrative review]. NEUROPSYCHIATRIE : KLINIK, DIAGNOSTIK, THERAPIE UND REHABILITATION : ORGAN DER GESELLSCHAFT OSTERREICHISCHER NERVENARZTE UND PSYCHIATER 2023; 37:122-129. [PMID: 37349671 PMCID: PMC10491532 DOI: 10.1007/s40211-023-00474-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 05/19/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND According to current guidelines, clozapine should be used as a third step in treatment resistant schizophrenia (TRS). In everyday clinical practice, however, it is frequently used at a much later stage, which leads to a significant deterioration of prognosis. The first part of this narrative overview focuses on the most frequent side effects of clozapine, on the relevance of slow titration, and on specific aspects of therapeutic drug monitoring (TDM). MATERIAL AND METHODS Medline, the Guideline for the use of clozapine 2013 of the Netherlands Clozapine Collaboration Group, and the S3 Guideline for Schizophrenia of the German Association for Psychiatry, Psychotherapy and Psychosomatics were searched for relevant literature, the last query dating from April 28th, 2023. RESULTS Despite its unique efficacy clozapine is underused in clinical practice and prescription varies between and within countries. Next to hematological, metabolic, and vegetative side effects, clozapine induced inflammation manifesting in the form of pneumonia or myocarditis, which is mainly associated with rapid titration, represents a major clinical challenge with CRP monitoring being of particular relevance. In this context, it also has to be noted that sex, smoking behavior, and ethnic origin impact clozapine metabolism, thus requiring personalized dosing. CONCLUSION Slow titration when possible, TDM, and CYP diagnostics when appropriate increase patient safety during treatment with clozapine and thus the likelihood of early prescription of this compound in TRS.
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Affiliation(s)
- Stefan J Berger
- Department für Psychiatrie, Psychotherapie, Psychosomatik und Medizinische Psychologie, Univ.-Klinik für Psychiatrie I, Medizinische Universität Innsbruck, Anichstr. 35, 6020, Innsbruck, Österreich
| | - Alex Hofer
- Department für Psychiatrie, Psychotherapie, Psychosomatik und Medizinische Psychologie, Univ.-Klinik für Psychiatrie I, Medizinische Universität Innsbruck, Anichstr. 35, 6020, Innsbruck, Österreich.
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He J, Wei Y, Li J, Tang Y, Liu J, He Z, Zhou R, He X, Ren H, Liao Y, Gu L, Yuan N, Chen X, Tang J. Sex differences in the association of treatment-resistant schizophrenia and serum interleukin-6 levels. BMC Psychiatry 2023; 23:470. [PMID: 37370004 DOI: 10.1186/s12888-023-04952-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Low-grade inflammation and altered inflammatory markers have been observed in treatment-resistant schizophrenia (TRS). Interleukin-6 (IL-6) is one of the pro-inflammatory cytokines linked with TRS and receives increasing attention. Previous studies showed that patients with TRS might have higher IL-6 levels compared with healthy individuals and treatment-responsive patients. Besides, emerging evidence has suggested that there are sex differences in the associations between IL-6 levels and various illnesses, including chronic hepatitis C, metabolic syndrome, etc.; however, there is limited study on TRS. In this present study, we aimed to compare the serum IL-6 levels of TRS and partially responsive schizophrenia (PRS) and explore potential sex differences in the association of TRS and IL-6 levels. METHODS The study population consisted of a total of 90 patients with schizophrenia: 64 TRS patients (45.3% males and 54.7% females) and 26 PRS patients (46.2% males and 53.8% females). We measured serum IL-6 levels using enzyme-linked immunosorbent assay (ELISA) and analyzed them separately by gender, controlling for confounders (age, education, medication, body mass index, and PANSS scores) rigorously. RESULT The results showed that patients with TRS had higher serum IL-6 levels than patients with PRS (p = 0.002). In females, IL-6 levels increased significantly in the TRS group compared with the PRS group (p = 0.005). And a positive correlation tendency was observed between IL-6 levels and PANSS general sub-scores (r = 0.31, p = 0.039), although this correlation was not significant after correcting for multiple comparisons. Whereas, there were no differences in IL-6 levels between the TRS and PRS (p = 0.124) in males. CONCLUSION Our findings provided evidence supporting the hypothesis that the inflammatory response system (IRS) may play a role in the pathogenesis of TRS in a sex-dependent manner. In addition, sex differences in the immune dysfunction of individuals with schizophrenia cannot be neglected, and inflammation in male and female TRS should be discussed separately.
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Affiliation(s)
- Jingqi He
- Department of Psychiatry, Sir Run-Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yisen Wei
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
- Department of Psychiatry, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jinguang Li
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Tang
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Junyu Liu
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
- Xiangya Nursing School of Central South University, Changsha, China
| | - Zhangyin He
- Department of Psychiatry, Sir Run-Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- School of Mental Health, Wenzhou Medical University, Wenzhou, China
| | | | - Xingtao He
- The Ninth Hospital of Changsha, Changsha, China
| | - Honghong Ren
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
- Department of Psychiatry, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Yanhui Liao
- Department of Psychiatry, Sir Run-Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lin Gu
- RIKEN Center for Advanced Intelligence Project, Tokyo, Japan
- Research Center for Advanced Science and Technology (RCAST), University of Tokyo, Tokyo, Japan
| | - Ning Yuan
- Hunan Provincial Brain Hospital (The Second People's Hospital of Hunan Province), Changsha, China.
| | - Xiaogang Chen
- Department of Psychiatry, National Center for Mental Disorders, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Jinsong Tang
- Department of Psychiatry, Sir Run-Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
- Zigong Mental Health Center, Zigong, China.
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Mizuno Y, Bridglal DL, Coumbe J, McGrath H, Adhikari A, Butler E, Bonoldi I, Taylor D, Howes OD. Low-frequency monitoring for community clozapine initiations: A comparative study relative to standard frequency assessments. J Psychopharmacol 2023:2698811231171532. [PMID: 37171177 DOI: 10.1177/02698811231171532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Affiliation(s)
- Yuya Mizuno
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- TREAT Service, South London and Maudsley NHS Foundation Trust, London, UK
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Devi L Bridglal
- GKT School of Medical Education, King's College London, London, UK
| | - Jack Coumbe
- GKT School of Medical Education, King's College London, London, UK
| | - Hari McGrath
- GKT School of Medical Education, King's College London, London, UK
| | - Ayush Adhikari
- GKT School of Medical Education, King's College London, London, UK
| | - Emma Butler
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- TREAT Service, South London and Maudsley NHS Foundation Trust, London, UK
| | - Ilaria Bonoldi
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- TREAT Service, South London and Maudsley NHS Foundation Trust, London, UK
| | - David Taylor
- Department of Pharmacy, Maudsley Hospital, South London and Maudsley NHS Foundation Trust, London, UK
- Institute of Pharmaceutical Science, King's College London, London, UK
| | - Oliver D Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- TREAT Service, South London and Maudsley NHS Foundation Trust, London, UK
- Psychiatric Imaging Group, Medical Research Council London Institute of Medical Sciences, Hammersmith Hospital, London, UK
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, UK
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9
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Qubad M, Bittner RA. Second to none: rationale, timing, and clinical management of clozapine use in schizophrenia. Ther Adv Psychopharmacol 2023; 13:20451253231158152. [PMID: 36994117 PMCID: PMC10041648 DOI: 10.1177/20451253231158152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/24/2023] [Indexed: 03/31/2023] Open
Abstract
Despite its enduring relevance as the single most effective and important evidence-based treatment for schizophrenia, underutilization of clozapine remains considerable. To a substantial degree, this is attributable to a reluctance of psychiatrists to offer clozapine due to its relatively large side-effect burden and the complexity of its use. This underscores the necessity for continued education regarding both the vital nature and the intricacies of clozapine treatment. This narrative review summarizes all clinically relevant areas of evidence, which support clozapine's wide-ranging superior efficacy - for treatment-resistant schizophrenia (TRS) and beyond - and make its safe use eminently feasible. Converging evidence indicates that TRS constitutes a distinct albeit heterogeneous subgroup of schizophrenias primarily responsive to clozapine. Most importantly, the predominantly early onset of treatment resistance and the considerable decline in response rates associated with its delayed initiation make clozapine an essential treatment option throughout the course of illness, beginning with the first psychotic episode. To maximize patients' benefits, systematic early recognition efforts based on stringent use of TRS criteria, a timely offer of clozapine, thorough side-effect screening and management as well as consistent use of therapeutic drug monitoring and established augmentation strategies for suboptimal responders are crucial. To minimize permanent all-cause discontinuation, re-challenges after neutropenia or myocarditis should be considered. Owing to clozapine's unique efficacy, comorbid conditions including substance use and most somatic disorders should not dissuade but rather encourage clinicians to consider clozapine. Moreover, treatment decisions need to be informed by the late onset of clozapine's full effects, which for reduced suicidality and mortality rates may not even be readily apparent. Overall, the singular extent of its efficacy combined with the high level of patient satisfaction continues to distinguish clozapine from all other available antipsychotics.
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Affiliation(s)
- Mishal Qubad
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
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10
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Butler E, Pillinger T, Brown K, Borgan F, Bowen A, Beck K, D'Ambrosio E, Donaldson L, Jauhar S, Kaar S, Marques TR, McCutcheon RA, Rogdaki M, Gaughran F, MacCabe J, Ramsay R, Taylor D, McCrone P, Egerton A, Howes OD. Real-world clinical and cost-effectiveness of community clozapine initiation: mirror cohort study. Br J Psychiatry 2022; 221:740-747. [PMID: 35438068 DOI: 10.1192/bjp.2022.47] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Clozapine is the only drug licensed for treatment-resistant schizophrenia (TRS) but the real-world clinical and cost-effectiveness of community initiation of clozapine is unclear. AIMS The aim was to assess the feasibility and cost-effectiveness of community initiation of clozapine. METHOD This was a naturalistic study of community patients recommended for clozapine treatment. RESULTS Of 158 patients recommended for clozapine treatment, 88 (56%) patients agreed to clozapine initiation and, of these, 58 (66%) were successfully established on clozapine. The success rate for community initiation was 65.4%; which was not significantly different from that for in-patient initiation (58.82%, χ2(1,88) = 0.47, P = 0.49). Following clozapine initiation, there was a significant reduction in median out-patient visits over 1 year (from 24.00 (interquartile range (IQR) = 14.00-41.00) to 13.00 visits (IQR = 5.00-24.00), P < 0.001), and 2 years (from 47.50 visits (IQR = 24.75-71.00) to 22.00 (IQR = 11.00-42.00), P < 0.001), and a 74.71% decrease in psychiatric hospital bed days (z = -2.50, P = 0.01). Service-use costs decreased (1 year: -£963/patient (P < 0.001); 2 years: -£1598.10/patient (P < 0.001). Subanalyses for community-only initiation also showed significant cost reductions (1 year: -£827.40/patient (P < 0.001); 2 year: -£1668.50/patient (P < 0.001) relative to costs prior to starting clozapine. Relative to before initiation, symptom severity was improved in patients taking clozapine at discharge (median Positive and Negative Syndrome Scale total score: initial visit: 80 (IQR = 71.00-104.00); discharge visit 50.5 (IQR = 44.75-75.00), P < 0.001) and at 2 year follow-up (Health of Nation Outcome Scales total score median initial visit: 13.00 (IQR = 9.00-15.00); 2 year follow-up: 8.00 (IQR = 3.00-13.00), P = 0.023). CONCLUSIONS These findings indicate that community initiation of clozapine is feasible and is associated with significant reductions in costs, service use and symptom severity.
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Affiliation(s)
- Emma Butler
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Toby Pillinger
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Kirsten Brown
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Faith Borgan
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Alice Bowen
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Katherine Beck
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Enrico D'Ambrosio
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari 'Aldo Moro', Italy
| | | | - Sameer Jauhar
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Stephen Kaar
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Tiago Reis Marques
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, UK
| | - Robert A McCutcheon
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Maria Rogdaki
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Fiona Gaughran
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - James MacCabe
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Rosalind Ramsay
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - David Taylor
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK and South London and Maudsley NHS Foundation Trust, UK
| | - Paul McCrone
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Alice Egerton
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Oliver D Howes
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK; Medical Research Council London Institute of Medical Sciences, UK; Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, UK and South London and Maudsley NHS Foundation Trust, UK
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11
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Correll CU, Agid O, Crespo-Facorro B, de Bartolomeis A, Fagiolini A, Seppälä N, Howes OD. A Guideline and Checklist for Initiating and Managing Clozapine Treatment in Patients with Treatment-Resistant Schizophrenia. CNS Drugs 2022; 36:659-679. [PMID: 35759211 PMCID: PMC9243911 DOI: 10.1007/s40263-022-00932-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/26/2022] [Indexed: 12/14/2022]
Abstract
Treatment-resistant schizophrenia (TRS) will affect about one in three patients with schizophrenia. Clozapine is the only treatment approved for TRS, and patients should be treated as soon as possible to improve their chances of achieving remission. Despite its effectiveness, concern over side effects, monitoring requirements, and inexperience with prescribing often result in long delays that can expose patients to unnecessary risks and compromise their chances of achieving favorable long-term outcomes. We critically reviewed the literature on clozapine use in TRS, focusing on guidelines, systematic reviews, and algorithms to identify strategies for improving clozapine safety and tolerability. Based on this, we have provided an overview of strategies to support early initiation of clozapine in patients with TRS based on the latest evidence and our clinical experience, and have summarized the key elements in a practical, evidence-based checklist for identifying and managing patients with TRS, with the aim of increasing confidence in prescribing and monitoring clozapine therapy.
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Affiliation(s)
- C U Correll
- Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin Berlin, Berlin, Germany.,Department of Psychiatry and Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.,Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA
| | - Ofer Agid
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | | | - Andrea de Bartolomeis
- Section on Clinical Psychiatry and Psychology, Laboratory of Molecular and Translational Psychiatry and Unit of Treatment Resistant Psychosis, University of Naples Federico II, Naples, Italy
| | - Andrea Fagiolini
- Department of Molecular Medicine, University of Siena, Siena, Italy
| | - Niko Seppälä
- Department of Psychiatry Satasairaala, Harjavalta, Finland
| | - Oliver D Howes
- Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK.
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12
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Peters E, Shamloo A, Lodhi RJ, Marcoux G, Jackson K, Halayka S, Balbuena L. Medication Gaps and Antipsychotic Polypharmacy in Previously Hospitalized Schizophrenia Patients: An Electronic Cohort Study in Three Canadian Provinces. Front Psychiatry 2022; 13:917361. [PMID: 35782434 PMCID: PMC9243750 DOI: 10.3389/fpsyt.2022.917361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Real world evidence about antipsychotics focuses on rehospitalization. Modeling the time course of pharmacotherapy would show patients' adherence to medications and physicians' adherence to medication guidelines. We aimed to calculate the cumulative time spent in second generation antipsychotics (SGAs), gaps, antipsychotic polypharmacy, and clozapine in discharged schizophrenia patients. METHODS Hospitalization and pharmacy dispensing data from 2008-2018 in Manitoba, Saskatchewan, and British Columbia were linked and an electronic cohort (N = 2,997) was created (mean follow-up: 49 months, SD = 38). Cohort members were required to have a minimum of 6 weeks medicated with aripiprazole, olanzapine, paliperidone, quetiapine, risperidone, or ziprasidone. RESULTS The multistate model predicted that schizophrenia patients accumulated 44 months in SGA monotherapy, 4 months in polypharmacy, 11 months in medication gaps and 17 days in clozapine over a 5-year period. The majority of transitions were between SGA and medication gap. Accumulated time in medication gaps was seven times as much as in clozapine. Each 10% delay in SGA initiation post-discharge was associated with a 2, 1, and 6% higher risk for polypharmacy (95% CI: 1.01-1.02), gap (95% CI: 1.01-1.01), and clozapine (95% CI: 1.04-1.08), respectively. INTERPRETATION Schizophrenia patients accumulated more time unmedicated and in polypharmacy compared to clozapine. Either treatment guidelines for schizophrenia are not followed, or real-world challenges hamper their implementation.
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Affiliation(s)
- Evyn Peters
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Arash Shamloo
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Rohit J Lodhi
- Department of Psychiatry, University of Western Ontario, London, ON, Canada
| | - Gene Marcoux
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Kylie Jackson
- Mental Health Outpatient Services, Saskatchewan Health Authority, Prince Albert, SK, Canada
| | | | - Lloyd Balbuena
- Department of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada
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13
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Itahashi T, Noda Y, Iwata Y, Tarumi R, Tsugawa S, Plitman E, Honda S, Caravaggio F, Kim J, Matsushita K, Gerretsen P, Uchida H, Remington G, Mimura M, Aoki YY, Graff-Guerrero A, Nakajima S. Dimensional distribution of cortical abnormality across antipsychotics treatment-resistant and responsive schizophrenia. NEUROIMAGE-CLINICAL 2021; 32:102852. [PMID: 34638035 PMCID: PMC8527893 DOI: 10.1016/j.nicl.2021.102852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/13/2021] [Accepted: 10/04/2021] [Indexed: 11/30/2022]
Abstract
Different etiology is assumed in treatment-resistant
and responsive schizophrenia. Patients with treatment-resistant schizophrenia were
classified from controls. Patients with non-treatment-resistant schizophrenia
were classified from controls. Two classifications reached area under the curve as
high as 0.69 and 0.85. Area under the curve remained as high as 0.69 when
two classifiers were swapped.
Background One-third of patients with schizophrenia are
treatment-resistant to non-clozapine antipsychotics (TRS), while the rest
respond (NTRS). Examining whether TRS and NTRS represent different
pathophysiologies is an important step toward precision
medicine. Methods Focusing on cortical thickness (CT), we analyzed
international multi-site cross-sectional datasets of magnetic resonance imaging
comprising 110 patients with schizophrenia (NTRS = 46, TRS = 64) and 52 healthy
controls (HCs). We utilized a logistic regression with L1-norm regularization to
find brain regions related to either NTRS or TRS. We conducted nested 10-fold
cross-validation and computed the accuracy and area under the curve (AUC). Then,
we applied the NTRS classifier to patients with TRS, and vice
versa. Results Patients with NTRS and TRS were classified from HCs with
65% and 78% accuracies and with the AUC of 0.69 and 0.85
(p = 0.014 and < 0.001, corrected), respectively.
The left planum temporale (PT) and left anterior insula/inferior frontal gyrus
(IFG) contributed to both NTRS and TRS classifiers. The left supramarginal gyrus
only contributed to NTRS and right superior temporal sulcus and right lateral
orbitofrontal cortex only to the TRS. The NTRS classifiers successfully
distinguished those with TRS from HCs with the AUC of 0.78
(p < 0.001), while the TRS classifiers classified
those with NTRS from HCs with the AUC of 0.69
(p = 0.015). Conclusion Both NTRS and TRS could be distinguished from HCs on the
basis of CT. The CT pathological basis of NTRS and TRS has commonalities, and
TRS presents unique CT features.
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Affiliation(s)
- Takashi Itahashi
- Medical Institute of Developmental Disabilities Research, Showa University, Tokyo, Japan
| | - Yoshihiro Noda
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Yusuke Iwata
- Department of Neuropsychiatry, University of Yamanashi Faculty of Medicine, Yamanashi, Japan
| | - Ryosuke Tarumi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Sakiko Tsugawa
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Eric Plitman
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Shiori Honda
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Fernando Caravaggio
- Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Julia Kim
- Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Karin Matsushita
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Philip Gerretsen
- Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada
| | - Gary Remington
- Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Yuta Y Aoki
- Medical Institute of Developmental Disabilities Research, Showa University, Tokyo, Japan.
| | - Ariel Graff-Guerrero
- Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
| | - Shinichiro Nakajima
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Brain Health Imaging Centre, Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada.
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14
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Whiskey E, Romano G, Elliott M, Campbell M, Anandarajah C, Taylor D, Valsraj K. Possible pharmacogenetic factors in clozapine treatment failure: a case report. Ther Adv Psychopharmacol 2021; 11:20451253211030844. [PMID: 35211290 PMCID: PMC8862186 DOI: 10.1177/20451253211030844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/18/2021] [Indexed: 01/19/2023] Open
Abstract
There is still much to learn about the predictors of therapeutic response in psychiatry, but progress is gradually being made and precision psychiatry is an exciting and emerging subspeciality in this field. This is critically important in the treatment of refractory psychotic disorders, where clozapine is the only evidence-based treatment but only about half the patients experience an adequate response. In this case report, we explore the possible biological mechanisms underlying treatment failure and discuss possible ways of improving clinical outcomes. Further work is required to fully understand why some patients fail to respond to the most effective treatment in refractory schizophrenia. Therapeutic drug monitoring together with early pharmacogenetic testing may offer a path for some patients with refractory psychotic symptoms unresponsive to clozapine treatment.
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Affiliation(s)
- Eromona Whiskey
- Pharmacy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill, London, SE5 8AZ, UK
| | | | | | | | | | - David Taylor
- Pharmacy Department, South London and Maudsley NHS Foundation Trust, London, UK
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15
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Stokes I, Griffiths SL, Jones R, Everard L, Jones PB, Fowler D, Hodgekins J, Amos T, Freemantle N, Sharma V, Marshall M, Singh SP, Birchwood M, Upthegrove R. Prevalence of treatment resistance and clozapine use in early intervention services. BJPsych Open 2020; 6:e107. [PMID: 32938513 PMCID: PMC7576650 DOI: 10.1192/bjo.2020.89] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Treatment resistance causes significant burden in psychosis. Clozapine is the only evidence-based pharmacologic intervention available for people with treatment-resistant schizophrenia; current guidelines recommend commencement after two unsuccessful trials of standard antipsychotics. AIMS This paper aims to explore the prevalence of treatment resistance and pathways to commencement of clozapine in UK early intervention in psychosis (EIP) services. METHOD Data were taken from the National Evaluation of the Development and Impact of Early Intervention Services study (N = 1027) and included demographics, medication history and psychosis symptoms measured by the Positive and Negative Syndrome Scale (PANSS) at baseline, 6 months and 12 months. Prescribing patterns and pathways to clozapine were examined. We adopted a strict criterion for treatment resistance, defined as persistent elevated positive symptoms (a PANSS positive score ≥16, equating to at least two items of at least moderate severity), across three time points. RESULTS A total of 143 (18.1%) participants met the definition of treatment resistance of having continuous positive symptoms over 12 months, despite treatment in EIP services. Sixty-one (7.7%) participants were treatment resistant and eligible for clozapine, having had two trials of standard antipsychotics; however, only 25 (2.4%) were prescribed clozapine over the 12-month study period. Treatment-resistant participants were more likely to be prescribed additional antipsychotic medication and polypharmacy, instead of clozapine. CONCLUSIONS Prevalent treatment resistance was observed in UK EIP services, but prescription of polypharmacy was much more common than clozapine. Significant delays in the commencement of clozapine may reflect a missed opportunity to promote recovery in this critical period.
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Affiliation(s)
- Imogen Stokes
- Birmingham Medical School, College of Medical and Dental Sciences, University of Birmingham, UK
| | | | - Rowena Jones
- School of Psychology, Institute for Mental Health, University of Birmingham; and Research and Innovation, Birmingham and Solihull Mental Health Foundation Trust, UK
| | - Linda Everard
- Research and Innovation, Birmingham and Solihull Mental Health Foundation Trust, UK
| | | | - David Fowler
- Department of Psychology, University of Sussex, UK
| | | | | | - Nick Freemantle
- Institute of Clinical Trials & Methodology, University College London, UK
| | - Vimal Sharma
- Faculty of Health and Social Care, University of Chester, UK
| | | | - Swaran P Singh
- Birmingham Early Intervention Service, Birmingham Women's and Children's NHS Trust, UK
| | | | - Rachel Upthegrove
- Birmingham Medical School, College of Medical and Dental Sciences, University of Birmingham; School of Psychology, Institute for Mental Health, University of Birmingham; Birmingham Early Intervention Service, Birmingham Women's and Children's NHS Trust, UK
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16
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van der Zalm YC, Schulte PF, Bogers JPAM, Termorshuizen F, Marcelis M, van Piere MAGB, Sommer IE, Selten JP. Delegating Clozapine Monitoring to Advanced Nurse Practitioners: An Exploratory, Randomized Study to Assess the Effect on Prescription and Its Safety. ADMINISTRATION AND POLICY IN MENTAL HEALTH AND MENTAL HEALTH SERVICES RESEARCH 2020; 47:632-640. [PMID: 32189094 PMCID: PMC7253396 DOI: 10.1007/s10488-020-01031-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To test whether: (1) psychiatrists will prescribe clozapine more often if they can delegate the monitoring tasks to an advanced nurse practitioner (ANP), (2) clozapine monitoring by an ANP is at least as safe as monitoring by a psychiatrist. Patients from 23 Dutch outpatient teams were assessed for an indication for clozapine. ANPs affiliated to these teams were randomized to Condition A: clozapine monitoring by an ANP, or Condition B: monitoring by the psychiatrist. The safety of monitoring was evaluated by determining whether the weekly neutrophil measurements were performed. Staff and patients were blinded regarding the first hypothesis. Of the 173 patients with an indication for clozapine at baseline, only seven in Condition A and four in Condition B were prescribed clozapine (Odds Ratio = 2.24, 95% CI 0.61–8.21; p = 0.225). These low figures affected the power of this study. When we considered all patients who started with clozapine over the 15-month period (N = 49), the Odds Ratio was 1.90 (95% CI 0.93–3.87; p = 0.078). With regard to the safety of the monitoring of the latter group of patients, 71.2% of the required neutrophil measurements were performed in condition A and 67.3% in condition B (OR = 0.98; CI = 0.16–3.04; p = 0.98). Identifying patients with an indication for clozapine does not automatically lead to improved prescription rates, even when an ANP is available for the monitoring. Clozapine-monitoring performed by an ANP seemed as safe as that by a psychiatrist.
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Affiliation(s)
- Y C van der Zalm
- Rivierduinen Institute for Mental Health, Leiden, The Netherlands. .,Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - P F Schulte
- Dutch Clozapine Collaboration Group, Castricum, The Netherlands.,Mental Health Service Noord-Holland Noord, Alkmaar, The Netherlands
| | - J P A M Bogers
- Rivierduinen Institute for Mental Health, Leiden, The Netherlands.,Dutch Clozapine Collaboration Group, Castricum, The Netherlands
| | - F Termorshuizen
- Rivierduinen Institute for Mental Health, Leiden, The Netherlands
| | - M Marcelis
- Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands.,Institute for Mental Health Care Eindhoven (GGzE), Eindhoven, The Netherlands
| | | | - I E Sommer
- Department of Neuroscience and Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
| | - J P Selten
- Rivierduinen Institute for Mental Health, Leiden, The Netherlands.,Department of Psychiatry & Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
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17
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Barnes TR, Drake R, Paton C, Cooper SJ, Deakin B, Ferrier IN, Gregory CJ, Haddad PM, Howes OD, Jones I, Joyce EM, Lewis S, Lingford-Hughes A, MacCabe JH, Owens DC, Patel MX, Sinclair JM, Stone JM, Talbot PS, Upthegrove R, Wieck A, Yung AR. Evidence-based guidelines for the pharmacological treatment of schizophrenia: Updated recommendations from the British Association for Psychopharmacology. J Psychopharmacol 2020; 34:3-78. [PMID: 31829775 DOI: 10.1177/0269881119889296] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
These updated guidelines from the British Association for Psychopharmacology replace the original version published in 2011. They address the scope and targets of pharmacological treatment for schizophrenia. A consensus meeting was held in 2017, involving experts in schizophrenia and its treatment. They were asked to review key areas and consider the strength of the evidence on the risk-benefit balance of pharmacological interventions and the clinical implications, with an emphasis on meta-analyses, systematic reviews and randomised controlled trials where available, plus updates on current clinical practice. The guidelines cover the pharmacological management and treatment of schizophrenia across the various stages of the illness, including first-episode, relapse prevention, and illness that has proved refractory to standard treatment. It is hoped that the practice recommendations presented will support clinical decision making for practitioners, serve as a source of information for patients and carers, and inform quality improvement.
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Affiliation(s)
- Thomas Re Barnes
- Emeritus Professor of Clinical Psychiatry, Division of Psychiatry, Imperial College London, and Joint-head of the Prescribing Observatory for Mental Health, Centre for Quality Improvement, Royal College of Psychiatrists, London, UK
| | - Richard Drake
- Clinical Lead for Mental Health in Working Age Adults, Health Innovation Manchester, University of Manchester and Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - Carol Paton
- Joint-head of the Prescribing Observatory for Mental Health, Centre for Quality Improvement, Royal College of Psychiatrists, London, UK
| | - Stephen J Cooper
- Emeritus Professor of Psychiatry, School of Medicine, Queen's University Belfast, Belfast, UK
| | - Bill Deakin
- Professor of Psychiatry, Neuroscience & Psychiatry Unit, University of Manchester and Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - I Nicol Ferrier
- Emeritus Professor of Psychiatry, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Catherine J Gregory
- Honorary Clinical Research Fellow, University of Manchester and Higher Trainee in Child and Adolescent Psychiatry, Manchester University NHS Foundation Trust, Manchester, UK
| | - Peter M Haddad
- Honorary Professor of Psychiatry, Division of Psychology and Mental Health, University of Manchester, UK and Senior Consultant Psychiatrist, Department of Psychiatry, Hamad Medical Corporation, Doha, Qatar
| | - Oliver D Howes
- Professor of Molecular Psychiatry, Imperial College London and Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Ian Jones
- Professor of Psychiatry and Director, National Centre of Mental Health, Cardiff University, Cardiff, UK
| | - Eileen M Joyce
- Professor of Neuropsychiatry, UCL Queen Square Institute of Neurology, London, UK
| | - Shôn Lewis
- Professor of Adult Psychiatry, Faculty of Biology, Medicine and Health, The University of Manchester, UK, and Mental Health Academic Lead, Health Innovation Manchester, Manchester, UK
| | - Anne Lingford-Hughes
- Professor of Addiction Biology and Honorary Consultant Psychiatrist, Imperial College London and Central North West London NHS Foundation Trust, London, UK
| | - James H MacCabe
- Professor of Epidemiology and Therapeutics, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, and Honorary Consultant Psychiatrist, National Psychosis Service, South London and Maudsley NHS Foundation Trust, Beckenham, UK
| | - David Cunningham Owens
- Professor of Clinical Psychiatry, University of Edinburgh. Honorary Consultant Psychiatrist, Royal Edinburgh Hospital, Edinburgh, UK
| | - Maxine X Patel
- Honorary Clinical Senior Lecturer, King's College London, Institute of Psychiatry, Psychology and Neuroscience and Consultant Psychiatrist, Oxleas NHS Foundation Trust, London, UK
| | - Julia Ma Sinclair
- Professor of Addiction Psychiatry, Faculty of Medicine, University of Southampton, Southampton, UK
| | - James M Stone
- Clinical Senior Lecturer and Honorary Consultant Psychiatrist, King's College London, Institute of Psychiatry, Psychology and Neuroscience and South London and Maudsley NHS Trust, London, UK
| | - Peter S Talbot
- Senior Lecturer and Honorary Consultant Psychiatrist, University of Manchester and Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - Rachel Upthegrove
- Professor of Psychiatry and Youth Mental Health, University of Birmingham and Consultant Psychiatrist, Birmingham Early Intervention Service, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | - Angelika Wieck
- Honorary Consultant in Perinatal Psychiatry, Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - Alison R Yung
- Professor of Psychiatry, University of Manchester, School of Health Sciences, Manchester, UK and Centre for Youth Mental Health, University of Melbourne, Australia, and Honorary Consultant Psychiatrist, Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
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Kaar SJ, Gobjila C, Butler E, Henderson C, Howes OD. Making decisions about antipsychotics: a qualitative study of patient experience and the development of a decision aid. BMC Psychiatry 2019; 19:309. [PMID: 31646985 PMCID: PMC6806500 DOI: 10.1186/s12888-019-2304-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/23/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Shared decision making is a widely accepted standard of patient-centred care that leads to improved clinical outcomes, yet it is commonly underutilised in the field of mental health. Furthermore, little is known regarding patient decision making around antipsychotic medication, which is often poorly adhered to. We aim to explore psychiatric patients' experiences of antipsychotic medication decision making in order to develop a patient decision aid to promote shared decision making. METHODS Focus groups were conducted with patients with chronic psychotic illnesses (n = 20) who had previously made a decision about taking or changing antipsychotic medication. Transcripts were coded and analysed for thematic content and continued until thematic saturation. These themes subsequently informed the development of a decision aid with the help of expert guidance. Further patient input was sought using the think aloud method (n = 3). RESULTS Twenty-three patients participated in the study. Thematic analysis revealed that 'adverse effects' was the most common theme identified by patients surrounding antipsychotic medication decision-making followed by 'mode and time of administration', 'symptom control' and 'autonomy'. The final decision aid is included to provoke further discussion and development of such aids. CONCLUSIONS Patients commonly report negative experiences of antipsychotic medication, in particular side-effects, which remain critical to future decision making around antipsychotic medication. Clinical encounters that increase patient knowledge and maximise autonomy in order to prevent early negative experiences with antipsychotic medication are likely to be beneficial.
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Affiliation(s)
- S J Kaar
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK.
| | - C Gobjila
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK
| | - E Butler
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK
| | - C Henderson
- Health Service and Population Research, Psychological and Systems Sciences, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, SE5 8AZ, UK
| | - O D Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK.,Psychiatric Imaging Group, MRC London Institute of Medical Sciences, Imperial College, Hammersmith Hospital, London, UK
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19
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Beck K, McCutcheon R, Stephenson L, Schilderman M, Patel N, Ramsay R, Howes OD. Prevalence of treatment-resistant psychoses in the community: A naturalistic study. J Psychopharmacol 2019; 33:1248-1253. [PMID: 31241396 DOI: 10.1177/0269881119855995] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Treatment-resistant schizophrenia (TRS) is a major cause of disability. Clozapine is currently the only antipsychotic medication licensed for its treatment. However, the rate of treatment resistance among outpatients with schizophrenia or other psychoses, and the rate of use of clozapine among them, is not known. AIMS The aims of this study are (a) to determine the point prevalence of treatment-resistant psychosis in a community sample, and (b) to determine the number of patients with TRS who have never had a clozapine trial. METHOD Clinico-demographic data were extracted from the case notes for 202 patients from two community mental-health teams. RESULTS We found that 56% (99/176) had a diagnosis of TRS, and 52% (51/99) of these patients had never been treated with clozapine. Patients of non-white ethnicity were less likely to have had a clozapine trial (p=0.009). The point prevalence of treatment resistance within the bipolar affective disorder sample was 19% (5/26). CONCLUSION These findings suggest that TRS is common in the community mental-health team, and a large proportion of these patients have not received clozapine. These findings indicate that identifying and treating treatment resistance should be a focus of community services for schizophrenia.
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Affiliation(s)
- Katherine Beck
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London, UK
- South London and the Maudsley NHS Foundation Trust, London, UK
- MRC London Institute of Medical Sciences, Hammersmith Hospital Campus, London, UK
| | - Robert McCutcheon
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London, UK
- South London and the Maudsley NHS Foundation Trust, London, UK
- MRC London Institute of Medical Sciences, Hammersmith Hospital Campus, London, UK
| | - Lucy Stephenson
- South London and the Maudsley NHS Foundation Trust, London, UK
| | | | - Natasha Patel
- South London and the Maudsley NHS Foundation Trust, London, UK
| | - Rosalind Ramsay
- South London and the Maudsley NHS Foundation Trust, London, UK
| | - Oliver D Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London, UK
- South London and the Maudsley NHS Foundation Trust, London, UK
- MRC London Institute of Medical Sciences, Hammersmith Hospital Campus, London, UK
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20
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Pillinger T, Rogdaki M, McCutcheon RA, Hathway P, Egerton A, Howes OD. Altered glutamatergic response and functional connectivity in treatment resistant schizophrenia: the effect of riluzole and therapeutic implications. Psychopharmacology (Berl) 2019; 236:1985-1997. [PMID: 30820633 PMCID: PMC6642056 DOI: 10.1007/s00213-019-5188-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/30/2019] [Indexed: 01/09/2023]
Abstract
RATIONALE Anterior cingulate cortex (ACC) glutamatergic abnormalities are reported in treatment-resistant schizophrenia (TRS) and implicated in functional dysconnectivity and psychopathology. Preclinical evidence indicates riluzole reduces synaptic glutamate. However, it is unknown whether riluzole can modulate glutamate metabolite levels and associated functional connectivity in TRS. OBJECTIVES To examine the relationship between glutamatergic function and cortical connectivity and determine if riluzole can modulate glutamate metabolite levels and cortical functional connectivity in TRS. METHODS Nineteen TRS patients and 18 healthy volunteers (HV) underwent magnetic resonance imaging consisting of MR spectroscopy measuring ACC glutamate plus glutamine (Glx), fMRI measuring resting ACC-functional connectivity, and arterial spin labelling measuring regional cerebral blood flow (rCBF), and clinical measures. They then received 50 mg riluzole twice daily for 2 days when imaging was repeated. RESULTS Baseline (pre-riluzole) Glx levels were correlated directly with negative symptom severity (r = 0.49; p = 0.03) and inversely with verbal learning in TRS (r = - 0.63; p = 0.002), but not HV (r = - 0.24; p = 0.41). Connectivity between the ACC and anterior prefrontal cortex (aPFC) was correlated with verbal learning in TRS (r = 0.49; p = 0.04), but not HV (r = 0.28; p = 0.33). There was a significant group × time interaction effect on Glx levels (p < 0.05) and on ACC connectivity to the aPFC (p < 0.05, FWE-corrected). Riluzole decreased Glx and increased ACC-aPFC connectivity in TRS relative to HV. Change in Glx correlated inversely with change in ACC-aPFC connectivity in TRS (r = - 0.52; p = 0.02) but not HV (r = 0.01; p = 0.98). Riluzole did not alter rCBF (p > 0.05), indicating absence of a non-specific blood flow effect. CONCLUSION Results indicate glutamatergic function and cortical connectivity are linked to symptoms and cognitive measures and that it is possible to pharmacologically modulate them in TRS.
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Affiliation(s)
- Toby Pillinger
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
- Medical Research Council London Institute of Medical Sciences, London, England
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, England
| | - Maria Rogdaki
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
- Medical Research Council London Institute of Medical Sciences, London, England
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, England
| | - Robert A. McCutcheon
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
- Medical Research Council London Institute of Medical Sciences, London, England
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, England
| | - Pamela Hathway
- Department of Electrical and Electronic Engineering, Imperial College London, London, England
| | - Alice Egerton
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
| | - Oliver D. Howes
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, England
- Medical Research Council London Institute of Medical Sciences, London, England
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, England
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21
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Verdoux H, Quiles C, Bachmann CJ, Siskind D. Prescriber and institutional barriers and facilitators of clozapine use: A systematic review. Schizophr Res 2018; 201:10-19. [PMID: 29880453 DOI: 10.1016/j.schres.2018.05.046] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/29/2018] [Accepted: 05/29/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND As clozapine is under-prescribed in persons with treatment-resistant schizophrenia (TRS), it is necessary to better identify the determinants of health inequalities in access to clozapine use. OBJECTIVE To identify mental health professionals' characteristics or attitudes and institutional characteristics facilitating or limiting clozapine prescribing. METHOD We systematically searched multiple electronic databases for articles reporting: (i) mental health professionals' attitudes and characteristics favoring or limiting clozapine prescribing; (ii) institutional characteristics associated with variations in clozapine prescribing; (iii) interventions aimed at enhancing clozapine prescribing. Data were synthesized narratively. RESULTS A total of 31 articles reporting findings of 29 studies published from 1993 to 2017 in 11 countries fulfilled our inclusion criteria. The main prescriber-related barriers to clozapine prescribing are lack of personal prescribing experience and concern with pharmacological characteristics of clozapine (blood monitoring and adverse effects). Lack of knowledge about the effectiveness of clozapine does not appear as a major determinant of under-prescription. Institutional-related characteristics favoring clozapine prescribing are prescribers' adherence to evidence-based medicine principles and learning by modelling from experienced clozapine prescribers. CONCLUSION Effective strategies to increase access to clozapine in persons with TRS include implementation of integrated clozapine clinics, simplification of blood monitoring, education for prescribers and contact with experienced prescribers. Programs addressing barriers in clozapine prescription need to be disseminated more broadly to ensure persons with TRS have access to evidenced based treatments such as clozapine. Inequality in access to clozapine care should be more systematically handled by mental health facilities and health regulatory agencies.
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Affiliation(s)
- Hélène Verdoux
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, Team Pharmacoepidemiology, UMR 1219, F-33000 Bordeaux, France; Centre Hospitalier Charles Perrens, F-33000 Bordeaux, France.
| | - Clélia Quiles
- Centre Hospitalier Charles Perrens, F-33000 Bordeaux, France
| | - Christian J Bachmann
- Department of Child and Adolescent Psychiatry, LVR-Klinikum Düsseldorf/Heinrich Heine University Düsseldorf, Germany
| | - Dan Siskind
- School of Medicine, University of Queensland, Woolloongabba, Qld, Australia; Metro South Addiction and Mental Health Service, Woolloongabba, Qld, Australia
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22
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McCutcheon R, Beck K, D'Ambrosio E, Donocik J, Gobjila C, Jauhar S, Kaar S, Pillinger T, Reis Marques T, Rogdaki M, Howes OD. Antipsychotic plasma levels in the assessment of poor treatment response in schizophrenia. Acta Psychiatr Scand 2018; 137:39-46. [PMID: 29072776 PMCID: PMC5734612 DOI: 10.1111/acps.12825] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/28/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Treatment resistance is a challenge for the management of schizophrenia. It is not always clear whether inadequate response is secondary to medication ineffectiveness, as opposed to medication underexposure due to non-adherence or pharmacokinetic factors. We investigated the prevalence of subtherapeutic antipsychotic plasma levels in patients identified as treatment-resistant by their treating clinician. METHOD Between January 2012 and April 2017, antipsychotic plasma levels were measured in 99 individuals provisionally diagnosed with treatment-resistant schizophrenia by their treating clinicians, but not prescribed clozapine. Patients were followed up to determine whether they were subsequently admitted to hospital. RESULTS Thirty-five per cent of plasma levels were subtherapeutic, and of these, 34% were undetectable. Black ethnicity (P = 0.006) and lower dose (P < 0.001) were significantly associated with subtherapeutic/undetectable plasma levels. Individuals with subtherapeutic/undetectable levels were significantly more likely to be admitted to hospital (P = 0.02). CONCLUSION A significant proportion of patients considered treatment-resistant have subtherapeutic antipsychotic plasma levels, and this is associated with subsequent admission. The presence of subtherapeutic plasma levels may suggest a need to address adherence or pharmacokinetic factors as opposed to commencing clozapine treatment. While antipsychotic levels are not recommended for the routine adjustment of dosing, they may assist with the assessment of potential treatment resistance in schizophrenia.
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Affiliation(s)
- R. McCutcheon
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - K. Beck
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
| | - E. D'Ambrosio
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - J. Donocik
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - C. Gobjila
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - S. Jauhar
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - S. Kaar
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - T. Pillinger
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - T. Reis Marques
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - M. Rogdaki
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
| | - O. D. Howes
- Department of Psychosis StudiesInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- MRC London Institute of Medical SciencesHammersmith HospitalLondonUK
- Faculty of MedicineInstitute of Clinical SciencesImperial College LondonLondonUK
- South London and Maudsley NHS Foundation TrustLondonUK
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23
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Bachmann CJ, Aagaard L, Bernardo M, Brandt L, Cartabia M, Clavenna A, Coma Fusté A, Furu K, Garuoliené K, Hoffmann F, Hollingworth S, Huybrechts KF, Kalverdijk LJ, Kawakami K, Kieler H, Kinoshita T, López SC, Machado-Alba JE, Machado-Duque ME, Mahesri M, Nishtala PS, Piovani D, Reutfors J, Saastamoinen LK, Sato I, Schuiling-Veninga CCM, Shyu YC, Siskind D, Skurtveit S, Verdoux H, Wang LJ, Zara Yahni C, Zoëga H, Taylor D. International trends in clozapine use: a study in 17 countries. Acta Psychiatr Scand 2017; 136:37-51. [PMID: 28502099 DOI: 10.1111/acps.12742] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/03/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE There is some evidence that clozapine is significantly underutilised. Also, clozapine use is thought to vary by country, but so far no international study has assessed trends in clozapine prescribing. Therefore, this study aimed to assess clozapine use trends on an international scale, using standardised criteria for data analysis. METHOD A repeated cross-sectional design was applied to data extracts (2005-2014) from 17 countries worldwide. RESULTS In 2014, overall clozapine use prevalence was greatest in Finland (189.2/100 000 persons) and in New Zealand (116.3/100 000), and lowest in the Japanese cohort (0.6/100 000), and in the privately insured US cohort (14.0/100 000). From 2005 to 2014, clozapine use increased in almost all studied countries (relative increase: 7.8-197.2%). In most countries, clozapine use was highest in 40-59-year-olds (range: 0.6/100 000 (Japan) to 344.8/100 000 (Finland)). In youths (10-19 years), clozapine use was highest in Finland (24.7/100 000) and in the publicly insured US cohort (15.5/100 000). CONCLUSION While clozapine use has increased in most studied countries over recent years, clozapine is still underutilised in many countries, with clozapine utilisation patterns differing significantly between countries. Future research should address the implementation of interventions designed to facilitate increased clozapine utilisation.
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Affiliation(s)
| | - L Aagaard
- Life Science Team, Bech-Bruun Law Firm, Copenhagen, Denmark
| | - M Bernardo
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, and Hospital Clínic, Department of Medicine, Barcelona University, and Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), and Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Barcelona, Spain
| | - L Brandt
- Centre for Pharmacoepidemiology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - M Cartabia
- Pharmacoepidemiology Unit, Department of Public Health, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - A Clavenna
- Pharmacoepidemiology Unit, Department of Public Health, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - A Coma Fusté
- Pharmacy Department of Barcelona Health Region, Catalan Health Service (CatSalut), Barcelona, Spain
| | - K Furu
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - K Garuoliené
- Medicines Reimbursement Department, National Health Insurance Fund of the Republic of Lithuania, Vilnius, Lithuania.,Faculty of Medicine, Department of Pathology, Forensic Medicine and Pharmacology, Vilnius University, Vilnius, Lithuania
| | - F Hoffmann
- Department of Health Services Research, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - S Hollingworth
- School of Pharmacy, University of Queensland, Woolloongabba, Qld, Australia
| | - K F Huybrechts
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - L J Kalverdijk
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, the Netherlands
| | - K Kawakami
- Department of Pharmacoepidemiology and Clinical Research Management, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - H Kieler
- Centre for Pharmacoepidemiology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - T Kinoshita
- Department of Pharmacoepidemiology and Clinical Research Management, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - S C López
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira - Audifarma S.A., Pereira, Colombia
| | - J E Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira - Audifarma S.A., Pereira, Colombia
| | - M E Machado-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira - Audifarma S.A., Pereira, Colombia
| | - M Mahesri
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - P S Nishtala
- New Zealand's National School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - D Piovani
- Pharmacoepidemiology Unit, Department of Public Health, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - J Reutfors
- Centre for Pharmacoepidemiology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - L K Saastamoinen
- Kela Research, The Social Insurance Institution, Helsinki, Finland
| | - I Sato
- Department of Pharmacoepidemiology and Clinical Research Management, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - C C M Schuiling-Veninga
- Unit of Pharmacotherapy, -Epidemiology and -Economics, Department of Pharmacy, University of Groningen, Groningen, the Netherlands
| | - Y-C Shyu
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung, Taiwan.,Institute of Molecular Biology, Academia Sinica, Taipei, Qld, Taiwan.,Department of Nutrition, Chang Gung University of Science and Technology, Kwei-Shan, Taiwan
| | - D Siskind
- School of Medicine, University of Queensland, Woolloongabba, Qld, Australia
| | - S Skurtveit
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - H Verdoux
- University Bordeaux, INSERM, Bordeaux Population Health Research Center, team Pharmaco-epidemiology, UMR 1219, F-33000, Bordeaux, France
| | - L-J Wang
- Department of Child & Adolescent Psychiatry, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C Zara Yahni
- Pharmacy Department of Barcelona Health Region, Catalan Health Service (CatSalut), Barcelona, Spain
| | - H Zoëga
- Bordeaux Population Health Research Center, INSERM, Univ. Bordeaux, team Pharmaco-epidemiology, UMR 1219, Bordeaux, France
| | - D Taylor
- South London and Maudsley NHS Foundation Trust, London, UK.,Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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Kim E, Howes OD, Veronese M, Beck K, Seo S, Park JW, Lee JS, Lee YS, Kwon JS. Presynaptic Dopamine Capacity in Patients with Treatment-Resistant Schizophrenia Taking Clozapine: An [ 18F]DOPA PET Study. Neuropsychopharmacology 2017; 42:941-950. [PMID: 27857125 PMCID: PMC5312074 DOI: 10.1038/npp.2016.258] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 11/09/2016] [Accepted: 11/11/2016] [Indexed: 01/20/2023]
Abstract
Some patients with schizophrenia show poor response to first-line antipsychotic treatments and this is termed treatment-resistant schizophrenia. The differential response to first-line antipsychotic drugs may reflect a different underlying neurobiology. Indeed, a previous study found dopamine synthesis capacity was significantly lower in patients with treatment-resistant schizophrenia. However, in this study, the treatment-resistant patients were highly symptomatic, whereas the responsive patients showed no or minimal symptoms. The study could not distinguish whether this was a trait effect or reflected the difference in symptom levels. Thus, we aimed to test whether dopaminergic function is altered in patients with a history of treatment resistance to first-line drugs relative to treatment responders when both groups are matched for symptom severity levels by recruiting treatment-resistant patients currently showed low symptom severity with the clozapine treatment. Healthy controls (n=12), patients treated with clozapine (n=12) who had not responded to first-line antipsychotics, and patients who had responded to first-line antipsychotics (n=12) were recruited. Participants were matched for age and sex and symptomatic severity level in patient groups. Participants' dopamine synthesis capacity was measured by using [18F]DOPA PET. We found that patients treated with clozapine show lower dopamine synthesis capacity than patients who have responded to first-line treatment (Cohen's d=0.9191 (whole striatum), 0.7781 (associative striatum), 1.0344 (limbic striatum), and 1.0189 (sensorimotor striatum) in line with the hypothesis that the dopaminergic function is linked to treatment response. This suggests that a different neurobiology may underlie treatment-resistant schizophrenia and that dopamine synthesis capacity may be a useful biomarker to predict treatment responsiveness.
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Affiliation(s)
- Euitae Kim
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Oliver D Howes
- Psychiatric Imaging, Medical Research Council Clinical Sciences Centre, Imperial College London, Hammersmith Hospital Campus, London, UK,Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Mattia Veronese
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Katherine Beck
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Seongho Seo
- Department of Brain & Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Korea,Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Woo Park
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Sung Lee
- Department of Brain & Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Korea,Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yun-Sang Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jun Soo Kwon
- Department of Brain & Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Korea,Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea,Department of Psychiatry, Seoul National University College of Medicine and Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, 28 Yeongon-dong, Chongno-gu, Seoul 110-744, Korea, Tel: +82 2 2072 2972, Fax: +82 2 747 9063, E-mail:
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25
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A Case of Resistant Schizophrenia Successfully Treated With Clozapine/Long-acting Injectable Aripiprazole Combination. Clin Neuropharmacol 2017; 39:322-324. [PMID: 27764052 DOI: 10.1097/wnf.0000000000000191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Treatment-resistant schizophrenia (TRS) is a condition characterized by intense symptom severity and poor response to different antipsychotic agents. The first therapeutic option in TRS is clozapine, but often high/medium doses are not tolerated. Adding an oral antipsychotic to low doses of clozapine is a promising strategy in the management of TRS. On the contrary, there are few data on combined clozapine/long-acting injectable (LAI) medications, and none on clozapine/LAI-aripiprazole. CASE A 21-year-old male schizophrenic patient, resistant to several oral and LAI medications, partially improved after clozapine 300 mg/d treatment. Unfortunately, he also reported excessive sedation and an episode of myoclonus, so clozapine was reduced to 150 mg/d, but no additional benefits were observed. Subsequently, LAI-aripiprazole (first 200 mg/mo, then 400 mg/mo) was added, and the patient's conditions dramatically improved over time. After 1 year of observation, symptoms reduction was 50% or greater, without significant adverse events. CONCLUSIONS Clozapine use in TRS is often reduced or delayed due to the fear of serious adverse effects. Adding LAI-aripiprazole to low doses of clozapine may be a useful therapeutic option to obtain a good efficacy/tolerability balance.
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Ingimarsson O, MacCabe JH, Haraldsson M, Jónsdóttir H, Sigurdsson E. Neutropenia and agranulocytosis during treatment of schizophrenia with clozapine versus other antipsychotics: an observational study in Iceland. BMC Psychiatry 2016; 16:441. [PMID: 27955666 PMCID: PMC5153901 DOI: 10.1186/s12888-016-1167-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 12/09/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Data on the haematological outcomes of patients who continue clozapine treatment following neutropenia are very rare as even mild neutropenia results in mandatory discontinuation of clozapine in most countries. However, in Iceland where clozapine monitoring is less stringent allows an observational study to be done on the risk of agranulocytosis and neutropenia during treatment with clozapine compared with other antipsychotics among patients with schizophrenia. METHODS The present study is a part of a wider ongoing longitudinal study of schizophrenia in Iceland. We identified 201 patients with schizophrenia treated with clozapine and 410 patients with schizophrenia who had never been on clozapine by searching the electronic health records of Landspitali, the National University Hospital. Neutrophil counts were searched in electronic databases to identify patients who developed neutropenia/agranulocytosis and the frequency of neutrophil measurements was examined as well. RESULTS The median number of days between neutrophil measurements during the first 18 weeks of clozapine treatment was 25 days but after the first 18 weeks on the drug the median became 124 days. Thirty four cases of neutropenia were identified during clozapine treatment with an average follow up time of 9.2 years. The majority, 24 individuals developed mild neutropenia (1500-1900 neutrophils/mm3). None of these progressed to agranulocytosis. The remaining 10 patients developed neutropenia in the range 500-1400 /mm3 of whom one developed agranulocytosis, three stopped clozapine use and 6 patients continued on clozapine for at least a year without developing agranulocytosis. Unexpectedly, schizophrenia patients on other antipsychotics had an equal risk of developing neutropenia as those on clozapine. CONCLUSIONS Neutropenia is common both in patients with schizophrenia on clozapine treatment and in those never on clozapine. Therefore a large part of neutropenia during clozapine treatment is probably not caused by clozapine. These findings have implications in assessing the balance between the risk of progression from neutropenia to agranulocytosis against the morbidity resulting from the premature discontinuation of clozapine under the current monitoring regulations in the US and in most of Europe.
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Affiliation(s)
- Oddur Ingimarsson
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavík, Iceland ,Landspitali University Hospital, Mental Health Services, Hringbraut, 101 Reykjavik, Iceland
| | - James H. MacCabe
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, Kings College, London, UK ,National Psychosis Unit, Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust, London, UK
| | - Magnús Haraldsson
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavík, Iceland ,Landspitali University Hospital, Mental Health Services, Hringbraut, 101 Reykjavik, Iceland
| | - Halldóra Jónsdóttir
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavík, Iceland ,Landspitali University Hospital, Mental Health Services, Hringbraut, 101 Reykjavik, Iceland
| | - Engilbert Sigurdsson
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavík, Iceland. .,Landspitali University Hospital, Mental Health Services, Hringbraut, 101, Reykjavik, Iceland.
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Lally J, Ajnakina O, Di Forti M, Trotta A, Demjaha A, Kolliakou A, Mondelli V, Reis Marques T, Pariante C, Dazzan P, Shergil SS, Howes OD, David AS, MacCabe JH, Gaughran F, Murray RM. Two distinct patterns of treatment resistance: clinical predictors of treatment resistance in first-episode schizophrenia spectrum psychoses. Psychol Med 2016; 46:3231-3240. [PMID: 27605254 DOI: 10.1017/s0033291716002014] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Clozapine remains the only evidence-based antipsychotic for treatment-resistant schizophrenia (TRS). The ability to predict which patients with their first onset of schizophrenia would subsequently meet criteria for treatment resistance (TR) could help to diminish the severe functional disability which may ensue if TR is not recognized and correctly treated. METHOD This is a 5-year longitudinal assessment of clinical outcomes in a cohort of 246 first-episode schizophrenia spectrum patients recruited as part of the NIHR Genetics and Psychosis (GAP) study conducted in South London from 2005 to 2010. We examined the relationship between baseline demographic and clinical measures and the emergence of TR. TR status was determined from a review of electronic case records. We assessed for associations with early-, and late-onset TR, and non-TR, and differences between those TR patients treated with clozapine and those who were not. RESULTS Seventy per cent (n = 56) of TR patients, and 23% of the total study population (n = 246) were treatment resistant from illness onset. Those who met criteria for TR during the first 5 years of illness were more likely to have an early age of first contact for psychosis (<20 years) [odds ratio (OR) 2.49, 95% confidence interval (CI) 1.25-4.94] compared to those with non-TR. The relationship between an early age of first contact (<20 years) and TR was significant in patients of Black ethnicity (OR 3.71, 95% CI 1.44-9.56); and patients of male gender (OR 3.13 95% CI 1.35-7.23). CONCLUSIONS For the majority of the TR group, antipsychotic TR is present from illness onset, necessitating increased consideration for the earlier use of clozapine.
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Affiliation(s)
- J Lally
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - O Ajnakina
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - M Di Forti
- MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London,London,UK
| | - A Trotta
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - A Demjaha
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - A Kolliakou
- Department of Psychological Medicine,Institute of Psychiatry, Psychology and Neuroscience, Kings College London,UK
| | - V Mondelli
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London,UK
| | - T Reis Marques
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - C Pariante
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London,UK
| | - P Dazzan
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - S S Shergil
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - O D Howes
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - A S David
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - J H MacCabe
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - F Gaughran
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
| | - R M Murray
- Department of Psychosis Studies,Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King's College London,London,UK
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Rogdaki M, Jauhar S, McCutcheon R, Howes O. Treatment-Resistant Schizophrenia in a Patient With 17q12 Duplication. Biol Psychiatry 2016; 80:e19-e20. [PMID: 26582588 DOI: 10.1016/j.biopsych.2015.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Maria Rogdaki
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College.
| | - Sameer Jauhar
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College
| | - Robert McCutcheon
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College
| | - Oliver Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College; Psychiatric Imaging, MRC Clinical Sciences Centre, Hammersmith Hospital, London, United Kingdom
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Citrome L, McEvoy JP, Saklad SR. A Guide to the Management of Clozapine-Related Tolerability and Safety Concerns. CLINICAL SCHIZOPHRENIA & RELATED PSYCHOSES 2016:CSRP.SACI.070816. [PMID: 27454214 DOI: 10.3371/csrp.saci.070816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Clozapine is a highly effective antipsychotic medication, which provides a range of significant benefits for patients with schizophrenia, and is the standard of care for treatment-resistant schizophrenia as well as for reducing the risk of suicidal behaviors in schizophrenia and schizoaffective disorder. However, clozapine is widely underutilized, largely because prescribing clinicians lack experience in prescribing it and managing its adverse events (AEs). Clozapine is associated with 3 uncommon but immediately dangerous AEs, agranulocytosis, myocarditis/cardiomyopathy, and seizures, as well as AEs that may become dangerous if neglected, including weight gain, metabolic syndrome and constipation, and others that are annoying or distressing such as sedation, nighttime enuresis and hypersalivation. Because of the risk of agranulocytosis, clozapine formulations are available only through restricted distribution via a patient registry, with mandatory, systematized monitoring for absolute neutrophil count using a specific algorithm. We identified articles on managing clozapine-associated AEs by searching PubMed using appropriate keywords and search techniques for each topic. A review of the prevalence and clinical characteristics of clozapine-associated AEs shows that these risks can be managed efficiently and effectively. The absolute risks for both agranulocytosis and myocarditis/cardiomyopathy are low, diminish after the first 6 months, and are further reduced with appropriate monitoring. Weight gain/metabolic disorders and constipation, which develop more gradually, can be mitigated with regular monitoring and timely interventions. Sedation, hypersalivation, and enuresis are common but manageable with ameliorative measures and/or medications.
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Affiliation(s)
| | | | - Stephen R Saklad
- 3 College of Pharmacy, University of Texas at Austin, Austin, TX, USA
- 4 Pharmacotherapy Education and Research Center, UT Health Science Center San Antonio, San Antonio, TX, USA
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Beck K, Javitt DC, Howes OD. Targeting glutamate to treat schizophrenia: lessons from recent clinical studies. Psychopharmacology (Berl) 2016; 233:2425-8. [PMID: 27212398 DOI: 10.1007/s00213-016-4318-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 03/03/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Katherine Beck
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
| | - Daniel C Javitt
- Division of Experimental Therapeutics, Departments of Psychiatry and Neuroscience, Columbia University Medical Center, 1051 Riverside Drive, New York, NY, 10032, USA
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY, 10962, USA
| | - Oliver D Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
- Psychiatric Imaging Group, Imperial College, MRC Clinical Sciences Centre, Hammersmith Hospital, London, UK.
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Mouchlianitis E, McCutcheon R, Howes OD. Brain-imaging studies of treatment-resistant schizophrenia: a systematic review. Lancet Psychiatry 2016; 3:451-63. [PMID: 26948188 PMCID: PMC5796640 DOI: 10.1016/s2215-0366(15)00540-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/22/2015] [Accepted: 11/23/2015] [Indexed: 02/05/2023]
Abstract
Around 30% of patients with schizophrenia show an inadequate response to antipsychotics-ie, treatment resistance. Neuroimaging studies can help to uncover the underlying neurobiological reasons for such resistance and identify these patients earlier. Additionally, studies examining the effect of clozapine on the brain can help to identify aspects of clozapine that make it uniquely effective in patients with treatment resistance. We did a systematic search of PubMed between Jan 1, 1980, and April 13, 2015, to identify all neuroimaging studies that examined treatment-resistant patients or longitudinally assessed the effects of clozapine treatment. We identified 330 articles, of which 61 met the inclusion criteria. Replicated differences between treatment-resistant and treatment-responsive patients include reductions in grey matter and perfusion of frontotemporal regions, and increases in white matter and basal ganglia perfusion, with effect sizes ranging from 0·4 to greater than 1. Clozapine treatment led to reductions in caudate nucleus volume in three separate studies. The available evidence supports the hypothesis that some of the neurobiological changes seen in treatment-resistant schizophrenia lie along a continuum with treatment-responsive schizophrenia, whereas other differences are categorical in nature and have potential to be used as biomarkers. However, further replication is needed, and for neuroimaging findings to be clinically translatable, future studies need to focus on a-priori hypotheses and be adequately powered.
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Affiliation(s)
- Elias Mouchlianitis
- Department of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK
| | - Robert McCutcheon
- Department of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK; Psychiatric Imaging Group, Medical Research Council Clinical Sciences Centre, Institute of Clinical Science, Imperial College London, London, UK.
| | - Oliver D Howes
- Department of Psychosis Studies, Institute of Psychiatry, King's College London, London, UK; Psychiatric Imaging Group, Medical Research Council Clinical Sciences Centre, Institute of Clinical Science, Imperial College London, London, UK
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Optimising treatment of schizophrenia: the role of adjunctive fluvoxamine. Psychopharmacology (Berl) 2016; 233:739-40. [PMID: 26780617 DOI: 10.1007/s00213-016-4207-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/12/2015] [Indexed: 10/22/2022]
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Iasevoli F, Giordano S, Balletta R, Latte G, Formato MV, Prinzivalli E, De Berardis D, Tomasetti C, de Bartolomeis A. Treatment resistant schizophrenia is associated with the worst community functioning among severely-ill highly-disabling psychiatric conditions and is the most relevant predictor of poorer achievements in functional milestones. Prog Neuropsychopharmacol Biol Psychiatry 2016; 65:34-48. [PMID: 26320028 DOI: 10.1016/j.pnpbp.2015.08.010] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 12/12/2022]
Abstract
The aim of this work was to compare achievements in milestones of community functioning in highly disabling psychiatric conditions, including treatment resistant schizophrenia (TRS), schizophrenia (responsive to antipsychotics), bipolar disorder, and anxiety/depressive diseases. Also, we investigated the predictors of community functioning outcomes across several domains. Among consecutive patients screened, 188 met inclusion criteria and 118 ultimately entered the study. Diagnosis of TRS was made by stringent criteria, including historic and perspective evaluations and excluding potential confounding factors. Achievements in functional milestones of everyday living were recorded. Performances in discrete cognitive tasks were assessed. The Positive and Negative Syndrome Scale, the Personal and Social Performance Scale, the Drug Attitude Inventory-10, and the Quality of Life Enjoyment and Satisfaction Questionnaire were administered. TRS patients showed the highest impairment in community functioning among diagnostic groups. TRS was found to have more severe psychopathology, more impaired cognitive functioning, and poorer psychosocial adjustment compared to all the other groups. In the whole sample, the main predictors of community functioning were the diagnostic group (with TRS diagnosis associated with worst functioning) and achievements in the other functional milestones. In psychotic patients, however, the main predictors of community functioning were clinical and psychopathological variables. These results may support the hypothesis that TRS represents a separate schizophrenia subtype, with its own neurobiology, psychopathology and clinical course. Our results identify a group of modifiable predictors to be addressed to prevent community disability.
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Affiliation(s)
- Felice Iasevoli
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Sara Giordano
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Raffaele Balletta
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Gianmarco Latte
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Maria Vittoria Formato
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Emiliano Prinzivalli
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy
| | - Domenico De Berardis
- National Health Service, Department of Mental Health ASL Teramo, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", Teramo, Italy; Department of Neurosciences and Imaging, University G. D'Annunzio, Chieti, Italy
| | - Carmine Tomasetti
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy; National Health Service, Department of Mental Health ASL Teramo, Psychiatric Service of Diagnosis and Treatment, Hospital "Maria SS dello Splendore", Giulianova, TE, Italy
| | - Andrea de Bartolomeis
- Outpatient Unit on Treatment Resistant Psychosis, Department of Neuroscience, University School of Medicine Federico II, Naples, Italy.
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Montemagni C, Frieri T, Rocca P. Second-generation long-acting injectable antipsychotics in schizophrenia: patient functioning and quality of life. Neuropsychiatr Dis Treat 2016; 12:917-29. [PMID: 27143893 PMCID: PMC4844443 DOI: 10.2147/ndt.s88632] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Long-acting injectable antipsychotics (LAIs) were developed to make treatment easier, improve adherence, and/or signal the clinician when nonadherence occurs. Second-generation antipsychotic LAIs (SGA-LAIs) combine the advantages of SGA with a long-acting formulation. The purpose of this review is to evaluate the available literature concerning the impact of SGA-LAIs on patient functioning and quality of life (QOL). Although several studies regarding schizophrenia patients' functioning and QOL have been performed, the quantity of available data still varies greatly depending on the SGA-LAI under investigation. After reviewing the literature, it seems that SGA-LAIs are effective in ameliorating patient functioning and/or QOL of patients with schizophrenia, as compared with placebo. However, while methodological design controversy exists regarding the superiority of risperidone LAI versus oral antipsychotics, the significant amount of evidence in recently published research demonstrates the beneficial influence of risperidone LAI on patient functioning and QOL in stable patients and no benefit over oral treatment in unstable patients. However, the status of the research on SGA-LAIs is lacking in several aspects that may help physicians in choosing the correct drug therapy. Meaningful differences have been observed between SGA-LAIs in the onset of their clinical efficacy and in the relationships between symptoms and functioning scores. Moreover, head-to-head studies comparing the effects of SGA-LAIs on classical measures of psychopathology and functioning are available mainly on risperidone LAI, while those comparing olanzapine LAI with other SGA-LAIs are still lacking. Lastly, some data on their use, especially in first-episode or recent-onset schizophrenia and in refractory or treatment-resistant schizophrenia, is available.
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Affiliation(s)
- Cristiana Montemagni
- Department of Neuroscience, Unit of Psychiatry, University of Turin, Italy; Department of Mental Health, Azienda Sanitaria Locale (ASL) Torino 1 (TO1), Azienda Ospedaliero-Universitaria (AOU) Città della Salute e della Scienza di Torino, Turin, Italy
| | - Tiziana Frieri
- Department of Neuroscience, Unit of Psychiatry, University of Turin, Italy; Department of Mental Health, Azienda Sanitaria Locale (ASL) Torino 1 (TO1), Azienda Ospedaliero-Universitaria (AOU) Città della Salute e della Scienza di Torino, Turin, Italy
| | - Paola Rocca
- Department of Neuroscience, Unit of Psychiatry, University of Turin, Italy; Department of Mental Health, Azienda Sanitaria Locale (ASL) Torino 1 (TO1), Azienda Ospedaliero-Universitaria (AOU) Città della Salute e della Scienza di Torino, Turin, Italy
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McCutcheon R, Beck K, Bloomfield MA, Marques TR, Rogdaki M, Howes OD. Treatment resistant or resistant to treatment? Antipsychotic plasma levels in patients with poorly controlled psychotic symptoms. J Psychopharmacol 2015; 29:892-7. [PMID: 25788157 PMCID: PMC4902121 DOI: 10.1177/0269881115576688] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A large proportion of individuals with schizophrenia show an inadequate response to treatment with antipsychotics. It can be unclear whether this is secondary to subtherapeutic antipsychotic plasma levels or to medication ineffectiveness. The purpose of the present study was to determine the extent of subtherapeutic antipsychotic plasma levels in a group of patients clinically identified as treatment-resistant. In addition we investigated the frequency of antipsychotic plasma level monitoring in standard clinical practice. Antipsychotic plasma levels were measured in 36 patients identified as having treatment-resistant schizophrenia by their treating clinicians. Sixteen (44%) patients showed either undetectable (19%) or subtherapeutic levels (25%), and 20 (56%) patients had levels in the therapeutic range. Subtherapeutic plasma levels were significantly associated with black ethnicity, shorter duration of current treatment and antipsychotics other than olanzapine and amisulpride. Antipsychotic plasma levels had been measured in only one patient in the year prior to our study. We found over one-third of patients identified as treatment-resistant have subtherapeutic antipsychotic levels. This indicates that they may be under-treated rather than treatment-resistant, and thus should receive different management. Currently the measurement of antipsychotic levels may be under-utilised.
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Affiliation(s)
- Robert McCutcheon
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Katherine Beck
- Department of Psychosis Studies, Institute of Psychiatry, King’s College London, UK
| | - Michael A.P. Bloomfield
- Department of Psychosis Studies, Institute of Psychiatry, King’s College London, UK,Psychiatric Imaging Group, MRC Clinical Sciences Centre, Institute of Clinical Science, Imperial College London, UK
| | - Tiago Reis Marques
- Department of Psychosis Studies, Institute of Psychiatry, King’s College London, UK
| | - Maria Rogdaki
- Department of Psychosis Studies, Institute of Psychiatry, King’s College London, UK
| | - Oliver D. Howes
- Department of Psychosis Studies, Institute of Psychiatry, King’s College London, UK,Psychiatric Imaging Group, MRC Clinical Sciences Centre, Institute of Clinical Science, Imperial College London, UK
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The impact of a change in prescribing policy on antipsychotic prescribing in a general adult psychiatric hospital. Ir J Psychol Med 2015; 32:361-363. [PMID: 30185255 DOI: 10.1017/ipm.2015.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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