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Ramakrishnan D, Farhat LC, Vattimo EFQ, Levine JLS, Johnson JA, Artukoglu BB, Landeros-Weisenberger A, Zangen A, Pelissolo A, de B Pereira CA, Rück C, Costa DLC, Mataix-Cols D, Shannahoff-Khalsa D, Tolin DF, Zarean E, Meyer E, Hawken ER, Storch EA, Andersson E, Miguel EC, Maina G, Leckman JF, Sarris J, March JS, Diniz JB, Kobak K, Mallet L, Vulink NCC, Amiaz R, Fernandes RY, Shavitt RG, Wilhelm S, Golshan S, Tezenas du Montcel S, Erzegovesi S, Baruah U, Greenberg WM, Kobayashi Y, Bloch MH. An evaluation of treatment response and remission definitions in adult obsessive-compulsive disorder: A systematic review and individual-patient data meta-analysis. J Psychiatr Res 2024; 173:387-397. [PMID: 38598877 DOI: 10.1016/j.jpsychires.2024.03.044] [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: 07/23/2023] [Revised: 03/18/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Expert consensus operationalized treatment response and remission in obsessive-compulsive disorder (OCD) as a Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) reduction ≥35% and score ≤12 with ≤2 on Clinical Global Impressions Improvement (CGI-I) and Severity (CGI-S) scales, respectively. However, there has been scant empirical evidence supporting these definitions. METHODS We conducted a systematic review and an individual participant data meta-analysis of randomized-controlled trials (RCTs) in adults with OCD to determine optimal Y-BOCS thresholds for response and remission. We estimated pooled sensitivity/specificity for each percent reduction threshold (response) or posttreatment score (remission) to determine response and remission defined by a CGI-I and CGI-S ≤ 2, respectively. RESULTS Individual participant data from 25 of 94 eligible RCTs (1235 participants) were included. The optimal threshold for response was ≥30% Y-BOCS reduction and for remission was ≤15 posttreatment Y-BOCS. However, differences in sensitivity and specificity between the optimal and nearby thresholds for response and remission were small with some uncertainty demonstrated by the confidence ellipses. CONCLUSION While the empirically derived Y-BOCS thresholds in our meta-analysis differ from expert consensus, given the predominance of data from more recent trials of OCD, which involved more refractory participants and novel treatment modalities as opposed to first-line therapies, we recommend the continued use of the consensus definitions.
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Affiliation(s)
| | - Luis C Farhat
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Edoardo F Q Vattimo
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | | | - Jessica A Johnson
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Bekir B Artukoglu
- Department of Child and Adolescent Psychiatry, Baylor College of Medicine, Houston, TX, USA
| | | | - Abraham Zangen
- Department of Life Sciences and the Zelman Center for Neuroscience, Ben Gurion University, Be'er Sheva, Israel
| | - Antoine Pelissolo
- Psychiatry Department, Henri-Mondor University Hospitals, Faculty of Medicine, Créteil, France
| | - Carlos A de B Pereira
- Mathematics and Statistics Institute, Statistics Department, University of São Paulo, São Paulo, Brazil
| | - Christian Rück
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Daniel L C Costa
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - David Mataix-Cols
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - David Shannahoff-Khalsa
- The Research Group for Mind-Body Dynamics, BioCircuits Institute and Center for Integrative Medicine, University of California San Diego, CA, USA; The Khalsa Foundation for Medical Science, Del Mar, CA, USA
| | - David F Tolin
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; The Institute of Living, Hartford, CT, USA
| | - Elham Zarean
- Department of Psychiatry, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elisabeth Meyer
- Department of Psychiatry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Emily R Hawken
- Department of Psychiatry, Queen's University, Kingston, Ontario, Canada
| | - Eric A Storch
- Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA
| | - Erik Andersson
- Department of Clinical Neuroscience, Division of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Euripedes C Miguel
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Giuseppe Maina
- Rita Levi Montalcini Department of Neuroscience, University of Turin, Turin, Italy
| | - James F Leckman
- Child Study Center, Department of Pediatrics and Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Jerome Sarris
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia; NICM Health Research Institute, Western Sydney University, NSW, Australia
| | - John S March
- Department of Psychiatry and Behavioral Sciences, Duke School of Medicine, Durham, NC, USA
| | - Juliana B Diniz
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | | | - Luc Mallet
- Medical-University Department of Psychiatry and Addictology, Henri Mondor - Albert Chenevier University Hospitals, Créteil, France
| | - Nienke C C Vulink
- The Rudolf Magnus Institute of Neuroscience, Department of Psychiatry, University Medical Center Utrecht (UMCU), Utrecht, the Netherlands
| | | | - Rodrigo Yacubian Fernandes
- The National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Department of Psychiatry, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Roseli G Shavitt
- Department of Psychiatry, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Sabine Wilhelm
- OCD and Related Disorders Program, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Shahrokh Golshan
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Sophie Tezenas du Montcel
- Sorbonne Universite, Institut du Cerveau Paris Brain Institute-ICM, Inserm, CNRS, AP-HP, Inria Aramis project-team, Paris, France
| | - Stefano Erzegovesi
- Department of Neurosciences, Eating Disorders Unit, IRCCS San Raffaele, Milano, Italy
| | - Upasana Baruah
- Department of Psychiatric Social Work, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | | | - Yuki Kobayashi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Michael H Bloch
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.
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Petrescu C, Mihalache OA, Vilciu C, Petrescu DM, Marian G, Ciobanu CA, Ciobanu AM. Clinical and Sociodemographic Correlations with Neurological Soft Signs in Hospitalized Patients with Schizophrenia: A Preliminary Longitudinal Study. Biomedicines 2024; 12:787. [PMID: 38672143 PMCID: PMC11048323 DOI: 10.3390/biomedicines12040787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/19/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
Schizophrenia is a severe, chronic neuropsychiatric disorder characterized by symptoms that profoundly impact behavior, cognition, perception, and emotions, leading to a reduced quality of life and physical impairment. Given the complexity of schizophrenia, there is a pressing need for clinical markers and tools to predict its course, enhance disease staging, facilitate early intervention, improve differential diagnosis, and tailor individualized treatment approaches. Previous studies focused on the relationship between neurological soft signs (NSS) and factors such as age, illness duration, and symptomatology, indicating NSS as state markers improving in parallel with psychotic symptom remission or predicting treatment resistance. However, there is a lack of consensus on NSS assessment tools, hindering routine clinical monitoring despite diagnostic and prognostic potential. The present longitudinal study involved 81 psychiatric inpatients diagnosed with schizophrenia. Patients were assessed at three time points: baseline, 1 month, and 6 months. The examination included the use of scales to evaluate psychotic and neurological symptoms, as well as the identification of adverse extrapyramidal reactions caused by neuroleptic treatment. The progression of NSS was correlated to both the symptomatology and the sociodemographic data of the patients. The main findings from the present investigation revealed a statistical correlation between NSS and psychopathological symptoms, especially with negative symptoms of schizophrenia. However, it is important to note that neuroleptic side effects only had a limited impact on NSS. Therefore, instead of being linked to extrapyramidal symptoms caused by neuroleptics, NSS appears to be more frequently related with symptoms of schizophrenia. Our findings provide further support for their strong association with the course of schizophrenia, independent of treatment side effects, thus emphasizing their potential as reliable assessment tools in both research and clinical settings.
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Affiliation(s)
- Cristian Petrescu
- Neuroscience Department, Discipline of Psychiatry, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Department of Psychiatry, ‘Prof. Dr. Alexandru Obregia’ Clinical Hospital of Psychiatry, 041914 Bucharest, Romania
| | - Oana A. Mihalache
- Department of Doctoral Studies, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Department of Neurology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.V.); (D.M.P.)
| | - Crisanda Vilciu
- Department of Neurology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.V.); (D.M.P.)
- Neurology Clinic, ‘Fundeni’ Clinical Institute, 022328 Bucharest, Romania
| | - Diana M. Petrescu
- Department of Neurology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.V.); (D.M.P.)
- Neurology Clinic, ‘Fundeni’ Clinical Institute, 022328 Bucharest, Romania
| | - Gabriela Marian
- Academy of Romanian Scientists, 927180 Bucharest, Romania;
- Department of Psychiatry and Psychology, ‘Titu Maiorescu’ University of Medicine, 040051 Bucharest, Romania
| | - Constantin A. Ciobanu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020022 Bucharest, Romania
| | - Adela M. Ciobanu
- Neuroscience Department, Discipline of Psychiatry, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Department of Psychiatry, ‘Prof. Dr. Alexandru Obregia’ Clinical Hospital of Psychiatry, 041914 Bucharest, Romania
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Hower MR, Karlapati SK, Bachu AK. Perphenazine in Treatment-Resistant Schizophrenia. Cureus 2024; 16:e51593. [PMID: 38313962 PMCID: PMC10836614 DOI: 10.7759/cureus.51593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 02/06/2024] Open
Abstract
Antipsychotics are considered a gold standard treatment for schizophrenia. However, there is considerable variation in antipsychotic medication choice. Factors considered involved include symptomatology, prior response, and adverse reactions. This case report presents a 38-year-old male patient with schizophrenia in acute psychosis refractory to several antipsychotics. Hypotheses for the mechanism of action of antipsychotics and psychopharmacology are discussed, and treatment resistance is defined. The patient's psychiatric, medical, and social history and past antipsychotic medications are reviewed. Afterward, the rationale for initiating perphenazine is discussed, and the patient's improvement with this medication is examined. Current literature on perphenazine's efficacy is also reviewed and discussed alongside its limitations.
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Affiliation(s)
- Michael R Hower
- Psychiatry and Behavioral Sciences, Baptist Health - University of Arkansas for Medical Sciences, Little Rock, USA
| | | | - Anil K Bachu
- Psychiatry and Behavioral Sciences, Baptist Health - University of Arkansas for Medical Sciences, Little Rock, USA
- Psychiatry and Behavioral Sciences, Allegheny Health Network, Pittsburgh, USA
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Siafis S, Brandt L, McCutcheon RA, Gutwinski S, Schneider-Thoma J, Bighelli I, Kane JM, Arango C, Kahn RS, Fleischhacker WW, McGorry P, Carpenter WT, Falkai P, Hasan A, Marder SR, Schooler N, Engel RR, Honer WG, Buchanan RW, Davidson M, Weiser M, Priller J, Davis JM, Howes OD, Correll CU, Leucht S. Relapse in clinically stable adult patients with schizophrenia or schizoaffective disorder: evidence-based criteria derived by equipercentile linking and diagnostic test accuracy meta-analysis. Lancet Psychiatry 2024; 11:36-46. [PMID: 38043562 DOI: 10.1016/s2215-0366(23)00364-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/30/2023] [Accepted: 10/19/2023] [Indexed: 12/05/2023]
Abstract
BACKGROUND There is no consensus on defining relapse in schizophrenia, and scale-derived criteria with unclear clinical relevance are widely used. We aimed to develop an evidence-based scale-derived set of criteria to define relapse in patients with schizophrenia or schizoaffective disorder. METHODS We searched the Yale University Open Data Access (YODA) for randomised controlled trials (RCTs) in clinically stable adults with schizophrenia or schizoaffective disorder, and obtained individual participant data on Positive and Negative Syndrome Scale (PANSS), Clinical Global Impression Severity (CGI-S), Personal and Social Performance (PSP), and Social and Occupational Functioning Assessment Scale (SOFAS). Our main outcomes were PANSS-derived criteria based on worsening in PANSS total score. We examined their relevance using equipercentile linking with CGI-S and functioning scales, and their test-performance in defining relapse with diagnostic test accuracy meta-analysis against CGI-S worsening (≥1-point increase together with a score ≥4 points) and psychiatric hospitalisation. FINDINGS Based on data from seven RCTs (2354 participants; 1348 men [57·3%] and 1006 women [42·7%], mean age of 39·5 years [SD 12·0, range 17-89]; 303 Asian [12.9%], 255 Black [10.8%], 1665 White [70.7%], and other or unspecified 131 [5.6%]), an increase of 12 points or more in PANSS total (range 30-210 points) corresponded to clinically important deterioration in global severity of illness (≥1 point increase in CGI-S, range 1-7) and functioning (≥10 points decline in PSP or SOFAS, range 1-100). The interpretation of percentage changes varied importantly across different baseline scores. An increase of 12 points or more in PANSS total had good sensitivity and specificity using CGI-S as reference standard (sensitivity 82·1% [95% CI 77·1-86·4], specificity 86·9% [82·9-90·3]), as well as good sensitivity but lower specificity compared to hospitalisation (sensitivity 81·7% [74·1-87·7], specificity 69·2% [60·5-76·9]). Requiring either an increase in PANSS total or in specific items for positive and disorganization symptoms further improved test-performance. Cutoffs for situations where high sensitivity or specificity is needed are presented. INTERPRETATION An increase of either 12 points or more in the PANSS total score, or worsening of specific positive and disorganisation symptom items could be a reasonable evidence-based definition of relapse in schizophrenia, potentially linking symptoms used to define remission and relapse. Percentage changes should not be used to define relapse because their interpretation depends on baseline scores. FUNDING German Research Foundation (grant number: 428509362).
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Affiliation(s)
- Spyridon Siafis
- Department of Psychiatry and Psychotherapy, School of Medicine and Health, Technical University of Munich, 81675 Munich, Germany; German Center for Mental Health (DZPG), Germany.
| | - Lasse Brandt
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Charité Campus Mitte, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Robert A McCutcheon
- Department of Psychiatry, University of Oxford, Oxford, UK; Oxford Health NHS Foundation Trust, Oxford, UK; Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK
| | - Stefan Gutwinski
- Department of Psychiatry and Psychotherapy, Charité Universitätsmedizin Berlin, Charité Campus Mitte, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Johannes Schneider-Thoma
- Department of Psychiatry and Psychotherapy, School of Medicine and Health, Technical University of Munich, 81675 Munich, Germany; German Center for Mental Health (DZPG), Germany
| | - Irene Bighelli
- Department of Psychiatry and Psychotherapy, School of Medicine and Health, Technical University of Munich, 81675 Munich, Germany; German Center for Mental Health (DZPG), Germany
| | - John M Kane
- Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks NY, USA; The Donald and Barbara Zucker School of Medicine, Department of Psychiatry and Molecular Medicine, Hempstead NY, USA
| | - Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - René S Kahn
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York NY, USA
| | | | - Patrick McGorry
- Orygen, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - William T Carpenter
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore MD, USA
| | - Peter Falkai
- German Center for Mental Health (DZPG), Germany; Department of Psychiatry and Psychotherapy, School of Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Alkomiet Hasan
- German Center for Mental Health (DZPG), Germany; Department of Psychiatry, Psychotherapy and Psychosomatics, University of Augsburg, Medical Faculty, Bezirkskrankenhaus Augsburg, Augsburg, Germany
| | - Stephen R Marder
- Semel Institute for Neuroscience at UCLA, VA Desert Pacific Mental Illness Research, Education and Clinical Center, Los Angeles CA, USA
| | - Nina Schooler
- Department of Psychiatry and Behavioral Sciences, State University of New York Downstate Medical Center, Brooklyn NY, USA
| | - Rolf R Engel
- Department of Psychiatry and Psychotherapy, School of Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - William G Honer
- University of British Columbia, Department of Psychiatry, Faculty of Medicine, Vancouver BC, Canada; BC Mental Health and Substance Use Services Research Institute, Vancouver BC, Canada
| | - Robert W Buchanan
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore MD, USA
| | - Michael Davidson
- Minerva Neurosciences, Waltham MA, USA; Department of Basic and Clinical Sciences, Psychiatry, University of Nicosia Medical School, Nicosia, Cyprus
| | - Mark Weiser
- Department of Psychiatry, Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Josef Priller
- Department of Psychiatry and Psychotherapy, School of Medicine and Health, Technical University of Munich, 81675 Munich, Germany; German Center for Mental Health (DZPG), Germany; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Neuropsychiatry, Charité-Universitätsmedizin Berlin and DZNE, Berlin, Germany; University of Edinburgh and UK DRI, Edinburgh, UK
| | - John M Davis
- Psychiatric Institute, University of Illinois, Chicago IL, USA
| | - Oliver D Howes
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Institute of Medical Sciences, Medical Research Council London, London, UK; Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, UK
| | - Christoph U Correll
- German Center for Mental Health (DZPG), Germany; Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks NY, USA; The Donald and Barbara Zucker School of Medicine, Department of Psychiatry and Molecular Medicine, Hempstead NY, USA; Department of Child and Adolescent Psychiatry, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Stefan Leucht
- Department of Psychiatry and Psychotherapy, School of Medicine and Health, Technical University of Munich, 81675 Munich, Germany; German Center for Mental Health (DZPG), Germany
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Tan X, Goh SE, Lee JJ, Vanniasingham SD, Brunelin J, Lee J, Tor PC. Efficacy of Using Intermittent Theta Burst Stimulation to Treat Negative Symptoms in Patients with Schizophrenia-A Systematic Review and Meta-Analysis. Brain Sci 2023; 14:18. [PMID: 38248233 PMCID: PMC10813174 DOI: 10.3390/brainsci14010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/09/2023] [Accepted: 12/16/2023] [Indexed: 01/23/2024] Open
Abstract
Negative symptoms in schizophrenia impose a significant burden with limited effective pharmacological treatment options. Recent trials have shown preliminary evidence for the efficacy of using intermittent theta burst stimulation (iTBS) in treating negative symptoms in schizophrenia. We aim to systematically review the current evidence of iTBS in the treatment of the negative symptoms of schizophrenia as an augmentation therapy. The study protocol was developed and registered on Prospero (registration ID: 323381). MEDLINE, EMBASE, Web of Science (Scopus), PsycINFO and Wan Fang databases were searched for sham-controlled, randomized trials of iTBS among patients with schizophrenia. The mean difference in major outcome assessments for negative symptoms was calculated. The quality of evidence was assessed using the Cochrane Risk of Bias Tool (version 1) and the GRADE system. Moreover, 12 studies including a total of 637 participants were included. Compared to sham treatment, the pooled analysis was in favor of iTBS treatment for negative symptoms (mean weight effect size: 0.59, p = 0.03) but not for positive symptoms (mean weight effect size: 0.01, p = 0.91) and depressive symptoms (mean weight effect size: 0.35, p = 0.16). A significant treatment effect was also observed on the iTBS target site left dorsal prefrontal cortex (mean weight effect size: 0.86, p = 0.007) and for stimulation with 80% motor threshold (mean weight effect size: 0.86, p = 0.02). Thus, our synthesized data support iTBS as a potential treatment for negative symptoms among patients with schizophrenia. However, the long-term efficacy and safety issues of iTBS in a larger population have yet to be examined.
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Affiliation(s)
- Xiaowei Tan
- Department of Mood and Anxiety, Institute of Mental Health, Singapore 539747, Singapore; (X.T.); (S.E.G.); (J.J.L.)
| | - Shih Ee Goh
- Department of Mood and Anxiety, Institute of Mental Health, Singapore 539747, Singapore; (X.T.); (S.E.G.); (J.J.L.)
| | - Jonathan Jie Lee
- Department of Mood and Anxiety, Institute of Mental Health, Singapore 539747, Singapore; (X.T.); (S.E.G.); (J.J.L.)
| | | | - Jérôme Brunelin
- PSYR2 Team, Lyon Neuroscience Research Center, University Lyon 1, INSERM U1028, CNRS UMR5292, 69000 Lyon, France;
- Centre Hospitalier Le Vinatier, 69500 Bron, France
| | - Jimmy Lee
- Department of Psychosis, Institute of Mental Health, Singapore 539747, Singapore;
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 636921, Singapore
| | - Phern Chern Tor
- Department of Mood and Anxiety, Institute of Mental Health, Singapore 539747, Singapore; (X.T.); (S.E.G.); (J.J.L.)
- Department of Psychiatric Medicine, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
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6
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Ozbek SU, Sut E, Bora E. Comparison of social cognition and neurocognition in schizophrenia and autism spectrum disorder: A systematic review and meta-analysis. Neurosci Biobehav Rev 2023; 155:105441. [PMID: 37923237 DOI: 10.1016/j.neubiorev.2023.105441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 10/14/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND This report aimed to compare group differences in social and non-social cognition in autism spectrum disorders (ASD) and schizophrenia, and examine the influence of age and other factors on group differences. METHODS Literature searches were conducted in Pubmed and Web of Science from January 1980 to August 2022. Original research articles reporting objective measures of cognition were selected. RESULTS 57 articles involving 1864 patients with schizophrenia and 1716 patients with ASD have been included. Schizophrenia was associated with more severe non-social-cognitive impairment, particularly in fluency (g=0.47;CI[0.17-0.76]) and processing speed domains (g=0.41;CI[0.20-0.62]). Poorer performance in social cognition (Z = 3.68,p = 0.0002) and non-social cognition (Z = 2.48,p = 0.01) in schizophrenia were significantly related to older age. ASD was associated with more severe social cognitive impairment when groups were matched for non-social-cognition (g=-0.18, p = 0.04) or reasoning/problem solving (g=-0,62; CI [-1,06-(-0.08)]. DISCUSSION While both disorders present with social and non-social cognitive impairments, the pattern and developmental trajectories of these deficits are different. The limitations included heterogeneity of the cognitive measures, and the lack of sufficient information about antipsychotic use.
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Affiliation(s)
| | - Ekin Sut
- Department of Psychiatry, Faculty of Medicine, Izmir, Turkey.
| | - Emre Bora
- Department of Psychiatry, Faculty of Medicine, Izmir, Turkey; Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Carlton South, Victoria 3053, Australia; Department of Neurosciences, Health Sciences Institute, Dokuz Eylül University, Izmir, Turkey.
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7
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Leucht S, Dombi ZB, Szabó P, Barabássy Á, Levine SZ. Single trajectory treatment response for predominant negative symptoms: Post-hoc analysis of a clinical trial with cariprazine and risperidone. Schizophr Res 2023; 261:24-30. [PMID: 37688910 DOI: 10.1016/j.schres.2023.09.004] [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: 04/20/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
Examining the heterogeneity of negative symptoms of schizophrenia contributes to the identification of available treatment targets. Generally, prior evidence classified three to four symptom treatment response trajectory groups over the course of positive symptoms, yet, no evidence exists regarding the heterogeneity of medium-term response to predominant negative symptoms. The current post-hoc analysis aims to identify the heterogeneity in negative symptom treatment response trajectories among patients with predominant negative symptoms who received either cariprazine or risperidone for 26 weeks. Treatment response was analyzed based on the: the Positive and Negative Syndrome Scale Factor Score for Negative Symptoms (PANSS-FSNS), and the Clinical Global Impression Severity (CGIS) and Improvement (CGII) scales. To identify subgroups of patients with a similar course of treatment response, group-based trajectory modelling was utilized. Results demonstrated that in comparison with competing models, a single trajectory best described the treatment response of patients with predominant negative symptoms. The results indicate that patients with predominant negative symptoms with over ten years of schizophrenia respond rapidly to adequate treatment and follow a course of steady improvement.
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Affiliation(s)
- Stefan Leucht
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | | | - Péter Szabó
- Medical Division, Gedeon Richter Plc., Budapest, Hungary
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Korman N, Stanton R, Vecchio A, Chapman J, Parker S, Martland R, Siskind D, Firth J. The effect of exercise on global, social, daily living and occupational functioning in people living with schizophrenia: A systematic review and meta-analysis. Schizophr Res 2023; 256:98-111. [PMID: 37209456 DOI: 10.1016/j.schres.2023.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 03/28/2023] [Accepted: 04/19/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Schizophrenia is associated with high rates of global, social and occupational functional impairments. While prior meta-analyses have extensively examined the impact of exercise on physical and mental health, the impact on functioning in schizophrenia have yet to be fully established. This review aimed to update the evidence base regarding the impact of exercise on functioning in schizophrenia, and explore moderators of effect. METHODS A systematic search was conducted to identify randomized controlled trials (RCTs) of exercise evaluating global functioning versus any comparator in people with schizophrenia; between group meta-analyses of global functioning (and secondary - social, living skills, occupational, adverse events) were computed using a random effects model. Subgroup analyses based on diagnosis and aspects of the intervention were conducted. RESULTS 18 full text articles were included, involving 734 participants. A moderate impact of exercise on global functioning was found (g = 0.40, 95 % C·I. = 0.12 to 0.69, p = 0.006), with a moderate impact of exercise on social (N = 5, g = 0.54 95 % C.I = 0.16 to 0.9 p = 0.005), and daily living functioning (N = 3, g = 0.65, 95 % C.I. = 0.07 to 1.22, p = 0.005). CONCLUSIONS There is good evidence that exercise can improve the global functioning of people with schizophrenia, with preliminary evidence for social and daily living skills; exercise should be considered an important adjunct to usual care. Higher impacts on global functioning were seen in aerobic interventions and of at least moderate to vigorous intensity. More research is required into resistance training, in early psychosis cohorts and to evaluate the comparison of exercise with other established psychosocial therapies.
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Affiliation(s)
- Nicole Korman
- Addiction and Mental Health Services, Metro South Health Services, Australia; School of Medicine, University of Queensland, Brisbane, Australia.
| | - Robert Stanton
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia
| | - Anna Vecchio
- Addiction and Mental Health Services, Metro South Health Services, Australia
| | - Justin Chapman
- Addiction and Mental Health Services, Metro South Health Services, Australia; Queensland Institute of Medical Research, Brisbane, Australia
| | - Stephen Parker
- Addiction and Mental Health Services, Metro South Health Services, Australia; School of Medicine, University of Queensland, Brisbane, Australia; The Prince Charles Hospital, Metro North Mental Health Services, Australia
| | - Rebecca Martland
- Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK
| | - Dan Siskind
- Addiction and Mental Health Services, Metro South Health Services, Australia; School of Medicine, University of Queensland, Brisbane, Australia
| | - Joseph Firth
- Division of Psychology and Mental Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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9
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The Impact of Antipsychotic Treatment on Neurological Soft Signs in Patients with Predominantly Negative Symptoms of Schizophrenia. Biomedicines 2022; 10:biomedicines10112939. [PMID: 36428507 PMCID: PMC9687986 DOI: 10.3390/biomedicines10112939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022] Open
Abstract
Schizophrenia is a complex and incompletely elucidated pathology that affects sensorimotor function and also produces numerous therapeutic challenges. The aims of this cross-sectional study were to identify the profile of neurological soft signs (NSS) in patients with predominantly negative symptoms of schizophrenia (PNS) compared with patients with schizophrenia who do not present a predominance of negative symptoms (NPNS) and also to objectify the impact of treatment on the neurological function of these patients. Ninety-nine (n = 99; 56 females and 43 males) patients diagnosed with schizophrenia according to DSM-V were included; these patients were undergoing antipsychotic (4 typical antipsychotics, 86 atypical antipsychotics, and 9 combinations of two atypical antipsychotics) or anticholinergic treatment (24 out of 99) at the time of evaluation, and the PANSS was used to identify the patients with predominantly negative symptoms (n = 39), the Neurological Evaluation Scale (NES) was used for the evaluation of neurological soft signs (NSS), and the SAS was used for the objectification of the extrapyramidal side effects induced by the neuroleptic treatment, which was converted to chlorpromazine equivalents (CPZE). The study's main finding was that, although the daily dose of CPZE did not represent a statistically significant variable, in terms of neurological soft signs, patients with PNS had higher rates of NSS.
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10
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Xu S, Yang Z, Chakraborty D, Chua YHV, Tolomeo S, Winkler S, Birnbaum M, Tan BL, Lee J, Dauwels J. Identifying psychiatric manifestations in schizophrenia and depression from audio-visual behavioural indicators through a machine-learning approach. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2022; 8:92. [PMID: 36344515 PMCID: PMC9640655 DOI: 10.1038/s41537-022-00287-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 09/08/2022] [Indexed: 11/09/2022]
Abstract
Schizophrenia (SCZ) and depression (MDD) are two chronic mental disorders that seriously affect the quality of life of millions of people worldwide. We aim to develop machine-learning methods with objective linguistic, speech, facial, and motor behavioral cues to reliably predict the severity of psychopathology or cognitive function, and distinguish diagnosis groups. We collected and analyzed the speech, facial expressions, and body movement recordings of 228 participants (103 SCZ, 50 MDD, and 75 healthy controls) from two separate studies. We created an ensemble machine-learning pipeline and achieved a balanced accuracy of 75.3% for classifying the total score of negative symptoms, 75.6% for the composite score of cognitive deficits, and 73.6% for the total score of general psychiatric symptoms in the mixed sample containing all three diagnostic groups. The proposed system is also able to differentiate between MDD and SCZ with a balanced accuracy of 84.7% and differentiate patients with SCZ or MDD from healthy controls with a balanced accuracy of 82.3%. These results suggest that machine-learning models leveraging audio-visual characteristics can help diagnose, assess, and monitor patients with schizophrenia and depression.
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Affiliation(s)
- Shihao Xu
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore
| | - Zixu Yang
- Institute of Mental Health, Singapore, Singapore
| | - Debsubhra Chakraborty
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore
| | - Yi Han Victoria Chua
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore
- School of Social Science, Nanyang Technological University, Singapore, Singapore
| | - Serenella Tolomeo
- Department of Psychology, National University of Singapore, Singapore, Singapore
| | - Stefan Winkler
- School of Computing, National University of Singapore, Singapore, Singapore
| | | | | | - Jimmy Lee
- Institute of Mental Health, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Justin Dauwels
- Faculty of Electrical Engineering, Mathematics, and Computer Science, Delft University of Technology, Delft, Netherlands.
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11
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Czobor P, Sebe B, Acsai K, Barabássy Á, Laszlovszky I, Németh G, Furukawa TA, Leucht S. What Is the Minimum Clinically Important Change in Negative Symptoms of Schizophrenia? PANSS Based Post-hoc Analyses of a Phase III Clinical Trial. Front Psychiatry 2022; 13:816339. [PMID: 35546918 PMCID: PMC9083222 DOI: 10.3389/fpsyt.2022.816339] [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: 11/16/2021] [Accepted: 02/23/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction Minimum clinically important difference (MCID) is a measure that defines the minimum amount of change in an objective score of a clinical test that must be reached for that change to be clinically noticeable. We aimed to find the MCID for patients with predominantly negative symptoms of schizophrenia at its earliest occurrence. Methods Data of a 26-week long, double-blind study with 454 patients [Positive and Negative Symptom Scale Negative Factor Score (PANSS-FSNS) ≥24, Positive and Negative Symptom Scale Positive Factor Score (PANSS-FSPS) ≤ 19] treated with cariprazine 4.5 mg/d or risperidone 4 mg/d were analyzed. The Clinical Global Impression-Improvement scale was used to quantify minimum improvement (CGI-I = 3) and no clinical change (CGI-I = 4) on the PANSS-FSNS, and the MCID was estimated with the following methods: as the mean PANSS-FSNS changes corresponding to the first instance of minimal improvement across all visits (MCID1); as the difference between the PANSS-FSNS change associated with the first instance and the PANSS-FSNS changes associated with the last recorded clinically unchanged status across all visits (MCID2); with the effect size approach (MCID3); as the Youden Index based cut-off value between no clinical change and minimal improvement (MCID4); as the relative likelihood of minimal improvement (MCID5). Results The MCID1 and MCID2 resulted in, respectively, a 3.8-point (18.5%) and a 1.5-point (7.3%) decrease from baseline severity on the PANSS-FSNS. Greater values were required for the MCID at later evaluation times. The cut-off between minimum improvement and no clinical change defined by the Youden Index was a-3-point (15%) change in the PANSS-FSNS. The effect size approach indicated the 1.5-point difference between minimally improved and unchanged patients to be a medium effect (ES = 0.6). Conclusion Applying different methods led to different results, ranging between 7.3 and 18.5% improvement from the baseline for the MCID at its earliest occurrence in patients with predominantly negative symptoms of schizophrenia.
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Affiliation(s)
- Pál Czobor
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Barbara Sebe
- Global Medical Division, Gedeon Richter Plc, Budapest, Hungary
| | - Károly Acsai
- Global Medical Division, Gedeon Richter Plc, Budapest, Hungary
| | - Ágota Barabássy
- Global Medical Division, Gedeon Richter Plc, Budapest, Hungary
| | | | - György Németh
- Global Medical Division, Gedeon Richter Plc, Budapest, Hungary
| | - Toshi A. Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University School of Public Health, Kyoto, Japan
| | - Stefan Leucht
- Department of Psychiatry and Psychotherapy, School of Medicine, Technical University of Munich, Munich, Germany
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12
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Haaf M, Curic S, Steinmann S, Rauh J, Leicht G, Mulert C. Glycine attenuates impairments of stimulus-evoked gamma oscillations in the ketamine model of schizophrenia. Neuroimage 2022; 251:119004. [PMID: 35176492 DOI: 10.1016/j.neuroimage.2022.119004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 01/18/2022] [Accepted: 02/13/2022] [Indexed: 01/17/2023] Open
Abstract
Although a substantial number of studies suggests some clinical benefit concerning negative symptoms in schizophrenia through the modulation of NMDA-receptor function, none of these approaches achieved clinical approval. Given the large body of evidence concerning glutamatergic dysfunction in a subgroup of patients, biomarkers to identify those with a relevant clinical benefit through glutamatergic modulation are urgently needed. A similar reduction of the early auditory evoked gamma-band response (aeGBR) as found in schizophrenia patients can be observed in healthy subjects following the application of an NMDA-receptor antagonist in the ketamine-model, which addresses the excitation / inhibition (E/I) imbalance of the disease. Moreover, this oscillatory change can be related to the emergence of negative symptoms. Accordingly, this study investigated whether glycine-related increases of the aeGBR, through NMDA-receptor co-agonism, accompany an improvement concerning negative symptoms in the ketamine-model. The impact of subanesthetic ketamine doses and the pretreatment with glycine was examined in twenty-four healthy male participants while performing a cognitively demanding aeGBR paradigm with 64-channel electroencephalography. Negative Symptoms were assessed through the PANSS. S-Ketamine alone caused a reduction of the aeGBR amplitude associated with more pronounced negative symptoms compared to placebo. Pretreatment with glycine attenuated both, the ketamine-induced alterations of the aeGBR amplitude and the increased PANSS negative scores in glycine-responders, classified based on relative aeGBR increase. Thus, we propose that the aeGBR represents a possible biomarker for negative symptoms in schizophrenia related to insufficient glutamatergic neurotransmission. This would allow to identify patients with negative symptoms, who might benefit from glutamatergic treatment.
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Affiliation(s)
- Moritz Haaf
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stjepan Curic
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Saskia Steinmann
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jonas Rauh
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gregor Leicht
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Mulert
- Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch (PNB), University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Center of Psychiatry, Justus-Liebig University, Giessen, Germany.
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13
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Zierhut M, Böge K, Bergmann N, Hahne I, Braun A, Kraft J, Ta TMT, Ripke S, Bajbouj M, Hahn E. The Relationship Between the Recognition of Basic Emotions and Negative Symptoms in Individuals With Schizophrenia Spectrum Disorders - An Exploratory Study. Front Psychiatry 2022; 13:865226. [PMID: 35573376 PMCID: PMC9091587 DOI: 10.3389/fpsyt.2022.865226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Current research suggests that emotion recognition is impaired in individuals affected by schizophrenia spectrum disorders (SSD). However, the specific impact of negative symptoms on the ability to recognize single basic emotions has not yet been explored sufficiently and is the aim of the present study. A sample of N = 66 individuals diagnosed with SSD was recruited at the Charité - Universitätsmedizin Berlin. In a first step, correlation analyses were conducted between seven different negative symptom subdomains of the Positive and Negative Syndrome Scale (PANSS) and the accuracy and latency in recognizing the six basic emotions (anger, disgust, fear, happiness, sadness, surprise) using the Emotion Recognition Task (ERT) of the Cambridge Neuropsychological Test Automated Battery (CANTAB). The significant correlations were subjected to linear regression models that controlled for the significant covariates diagnoses, age, sex, and education. Results revealed that in individuals with SSD the negative symptom domain of blunted affect significantly predicted the accuracy of emotion recognition performance (p < 0.05), particularly, when recognizing happiness (p < 0.05). Additionally, we found that stereotyped thinking also predicted the performance of emotion recognition, especially the response latency (p < 0.05) and difficulty in abstract thinking predicted the recognition of fear (p < 0.05). However, the nominal significances did not withstand correction for multiple tests and therefore need to be followed up in further studies with a larger sample.
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Affiliation(s)
- Marco Zierhut
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Charitè Junior Clinician Scientist Program, BIH Biomedical Innovation Academy, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kerem Böge
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Niklas Bergmann
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Inge Hahne
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Alice Braun
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Julia Kraft
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Thi Minh Tam Ta
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Stephan Ripke
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Malek Bajbouj
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Eric Hahn
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany
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14
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Bugarski-Kirola D, Arango C, Fava M, Nasrallah H, Liu IY, Abbs B, Stankovic S. Pimavanserin for negative symptoms of schizophrenia: results from the ADVANCE phase 2 randomised, placebo-controlled trial in North America and Europe. Lancet Psychiatry 2022; 9:46-58. [PMID: 34861170 DOI: 10.1016/s2215-0366(21)00386-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/26/2021] [Accepted: 09/09/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Negative symptoms of schizophrenia are associated with adverse clinical outcomes, but there are few effective treatments. We aimed to assess the effects of pimavanserin, a selective 5-HT2A inverse agonist and antagonist, on negative symptoms of schizophrenia. METHODS The ADVANCE study was a phase 2, 26-week, randomised, double-blind, placebo-controlled study of pimavanserin in stable outpatients with schizophrenia aged 18-55 years with predominant negative symptoms. Patients were randomly assigned (1:1) across 83 sites (18 in North America and 65 in Europe) to receive pimavanserin or placebo daily, added to an ongoing antipsychotic medication, per a computer-generated schedule (stratification by geographical region). Eligible patients had a score of at least 20 on the sum of seven Positive and Negative Syndrome Scale (PANSS) Marder negative factor items (and scores of ≥4 on at least three or ≥5 on at least two of negative symptom items). The starting dosage of 20 mg of pimavanserin or placebo could be adjusted to 34 mg or 10 mg within the first 8 weeks of the study, after which dosage remained stable until the end of the study. Both pimavanserin and placebo were administered orally once daily as two individual tablets (pimavanserin tablets were either 10 mg or 17 mg). The primary endpoint was change in total score using the 16-item Negative Symptom Assessment (NSA-16) from baseline to week 26. Primary outcomes were analysed in patients who received at least one dose of the study drug and had NSA-16 assessments at baseline and at least once post-baseline (full analysis set). Safety outcomes were analysed in patients who had received at least one dose of the study drug. This trial is registered with ClinicalTrials.gov, NCT02970305, and is complete. FINDINGS Between Nov 4, 2016, and April 16, 2019, we randomly assigned 403 patients to pimavanserin (n=201; 131 [65%] male; 187 [93%] White) or placebo (n=202; 137 [68%] male, 186 (92%) White), of whom 400 were included in the efficacy analysis (199 in the pimavanserin group, 201 in the placebo group). Mean age was 37·7 years (SD 9·4) in the pimavanserin group and 36·7 (9·2) years in the placebo group. The change in total NSA-16 score from baseline to week 26 was significantly improved with pimavanserin (least squares mean -10·4 [SE 0·67]) versus placebo (least squares mean -8·5 [0·67]; p=0·043; effect size: 0·211). The number of patients with treatment-emergent adverse events (TEAEs) was similar between groups: 80 (40%) patients experienced TEAEs in the pimavanserin group and 71 (35%) in the placebo group. Most TEAEs were headache (6% [n=13] vs 5% [n=10]) and somnolence (5% [n=11] vs 5% [n=10]). One patient from the placebo group reported severe headache (0·5%), rhinorrhoea (0·5%), cough (0·5%), and influenza (0·5%). In the pimavanserin group, one patient reported severe toothache (0·5%), and two patients had worsening of schizophrenia (1%). Mean change in QTcF interval was higher with pimavanerin (4·5 ms [SD 18·0]) than with placebo (0·0 ms [16·0]). INTERPRETATION Stable patients with predominant negative symptoms of schizophrenia showed a reduction in negative symptoms after treatment with pimavanserin. However, given the small effect size, further investigation with optimised dosing is warranted to determine the clinical significance of this effect. FUNDING Acadia Pharmaceuticals.
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Affiliation(s)
| | - Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM. CIBERSAM, Universidad Complutense, School of Medicine, Madrid, Spain
| | - Maurizio Fava
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Henry Nasrallah
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - I-Yuan Liu
- Acadia Pharmaceuticals, San Diego, CA, USA
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15
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Cochran JM, Fang H, Le Gallo C, Peters-Strickland T, Lindenmayer JP, Reuteman-Fowler JC. Participant Engagement and Symptom Improvement: Aripiprazole Tablets with Sensor for the Treatment of Schizophrenia. Patient Prefer Adherence 2022; 16:1805-1817. [PMID: 35923658 PMCID: PMC9342879 DOI: 10.2147/ppa.s362889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 06/16/2022] [Indexed: 02/03/2023] Open
Abstract
PURPOSE A recent, phase 3b, mirror-image clinical trial of outpatients with schizophrenia found that use of aripiprazole tablets with sensor (AS; Abilify MyCite®, comprising an ingestible event-marker sensor embedded in aripiprazole tablets, wearable sensor patches, and a smartphone application) reduced the incidence of psychiatric hospitalizations relative to oral standard-of-care antipsychotics. This analysis explored the relationship between AS engagement by participants and changes in participant performance and symptom-severity measures assessed by clinical raters. PARTICIPANTS AND METHODS This post hoc analysis used prospectively collected clinical data from a phase 3b clinical trial (NCT03892889). Outpatients had schizophrenia, were aged 18-65 years, and had ≥ 1 psychiatric hospitalization in the previous 48 months. Participants were grouped by study completion status and a k-means clustering algorithm based on AS utilization, resulting in 3 groups: discontinued (discontinued AS before month 3 of the study); moderate engagement (completed 3 months, used AS intermittently); and high engagement (completed 3 months, used AS regularly). Baseline to end-of-study differences for the Clinical Global Impression Scale (Severity of Illness and Improvement of Illness scales), Personal and Social Performance Scale, and Positive and Negative Syndrome Scale were calculated. RESULTS A total of 277 outpatients were enrolled (discontinued, n = 164; moderate engagement, n = 63; high engagement, n = 50). All groups experienced symptom improvement from baseline to end-of-study, with significant changes in the more-engaged groups. Highly engaged participants showed significant improvement for all clinical scores and subscores (all P < 0.05) and demonstrated significantly more improvement in symptoms than participants with less engagement. CONCLUSION Participants who completed 3 months of the study and had higher AS engagement experienced significantly greater improvement in their end-of-study clinical assessments versus participants who did not complete 3 months. Improvement may be related to more-consistent medication intake and better engagement with a digital health system.
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Affiliation(s)
- Jeffrey M Cochran
- Medical & Real World Data Analytics, Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ, USA
- Correspondence: Jeffrey M Cochran, Medical & Real World Data Analytics, Otsuka Pharmaceutical Development & Commercialization, Inc., 508 Carnegie Center, Princeton, NJ, 08540, USA, Tel +1 609 535 9035, Email
| | - Hui Fang
- Biostatistics, Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ, USA
| | - Christophe Le Gallo
- Clinical Programming, Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ, USA
| | | | - Jean-Pierre Lindenmayer
- Department of Psychiatry, New York University Grossman School of Medicine, New York, NY, USA
| | - J Corey Reuteman-Fowler
- Global Clinical Development, Otsuka Pharmaceutical Development & Commercialization, Inc., Princeton, NJ, USA
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16
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Heart rate variability is associated with disease severity in psychosis spectrum disorders. Prog Neuropsychopharmacol Biol Psychiatry 2021; 111:110108. [PMID: 32946948 DOI: 10.1016/j.pnpbp.2020.110108] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 12/19/2022]
Abstract
While a growing literature links cardiac autonomic dysregulation to a variety of psychiatric disorders, the relationship between cardiac autonomic functioning and specific symptoms in schizophrenia (SZ) and bipolar disorder (BD) remains elusive. Thus, we investigated heart rate variability (HRV), a proxy for vagal activity, as a biological marker for symptom severity in patients with SZ and BD. HRV was calculated in 35 patients with SZ and 52 patients with BD, as well as in 149 healthy controls. In the patient groups, symptom severity and function were measured by the Positive and Negative Syndrome Scale (PANSS) and the Global Assessment of Functioning (GAF) scale. Results showed that HRV was significantly lower in both clinical groups compared to the healthy controls, with no significant HRV differences between patient groups. PANSS general psychopathology scores, GAF symptom scores, and GAF function scores showed statistically significant associations with HRV across groups. These results suggest that disease severity is associated with autonomic dysfunction and that HRV may provide a potential biomarker of disease severity in SZ and BD.
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Wang Q, Zhu X, Jiang X, Li M, Chang R, Chen B, Liu J. Relationship between stressful life events, coping styles, and schizophrenia relapse. Int J Ment Health Nurs 2021; 30:1149-1159. [PMID: 33960095 PMCID: PMC8518398 DOI: 10.1111/inm.12865] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/14/2021] [Indexed: 12/25/2022]
Abstract
This study aimed to explore the relationship between stressful life events, coping styles, and schizophrenia relapse. The sample for this study included 248 patients with schizophrenia from a psychiatric outpatient clinic in Hunan Province, China. Stressful life events, occurrence of schizophrenia relapse, and coping style were assessed by the Scale for the Social Readjustment Rating, Brief Psychiatric Rating Scale, and Simplified Coping Style Questionnaire, respectively. Spearman correlation analysis and binary logistic regression analysis were adopted to explore the relationships among coping styles, schizophrenia relapse, and stressful life events. Stressful life events and negative coping exhibited significant positive association with schizophrenia relapse, while positive coping exhibited a significant negative association with schizophrenia relapse. Stressful life events and positive coping exerted significant effects on schizophrenia relapse, while negative coping did not. We also found that both positive coping and negative coping have moderating effects on the relationship between stressful life events and schizophrenia relapse, but the relationship is weak. The study highlighted the importance of interventions designed to reduce stressful life events, promote positive coping, and address negative coping in patients with schizophrenia.
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Affiliation(s)
- Qing Wang
- School of Nursing, Ningxia Medical University, Ningxia, China
| | - Xiaodan Zhu
- School of Nursing, Ningxia Medical University, Ningxia, China
| | - Xiaojian Jiang
- School of Nursing, Hunan University of Chinese Medicine, Changsha, China
| | - Meizhi Li
- Department of Nursing, The Second People's Hospital of Hunan Province, Changsha, China
| | - Ru Chang
- School of Nursing, Ningxia Medical University, Ningxia, China
| | - Bing Chen
- School of Nursing, Ningxia Medical University, Ningxia, China
| | - Juan Liu
- School of Basic Medical Sciences, Ningxia Medical University, Ningxia, China
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18
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Wang W, Zhou Y, Liu R, Wei S, Xu H, Wang J, Wang L, Trinh TH, Wu HE, Wang D, Zhang X. Association between empathy and clinical symptoms in chronic schizophrenia: A large sample study based on Chinese Han population. J Psychiatr Res 2021; 139:106-112. [PMID: 34058648 DOI: 10.1016/j.jpsychires.2021.05.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/01/2021] [Accepted: 05/19/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND In patients with schizophrenia, clinical symptoms and cognitive impairment are its core features, both of which have a significant impact on the prognosis and functional outcome. Empathy, as an important social cognition, has been found to be associated with the clinical symptoms in schizophrenia, but the conclusions on this issue are inconsistent. Therefore, this study will continue to explore it through a large sample of inpatients with chronic schizophrenia in the Chinese Han population. METHODS We obtained the sociodemographic characteristics of 987 inpatients, measured their clinical symptoms using the Positive and Negative Syndrome Scale (PANSS), and assessed their self-reported empathy using the Interpersonal Reactivity Index (IRI). The factor score for negative symptoms (FSNS) of PANSS was additionally calculated. RESULTS Correlation and linear regression analysis showed that patients' PANSS scores were widely correlated with their IRI scores. In particular, the negative symptoms of patients were significantly correlated to IRI total score (r = -0.131, p < .001) and subscales such as Perspective Taking (PT) (r = -0.233, p < .001). FSNS had close relationships with empathy as well. There are also many significant associations between other dimensions, such as general psychopathology and Perspective Taking (PT) or Fantasy (FS) (all p < .05). CONCLUSIONS Our results indicated that clinical symptoms, especially negative symptoms, were closely related to their current empathy in patients with schizophrenia, suggesting that the severity of clinical symptoms may be a powerful factor in predicting social cognition such as empathy of schizophrenia.
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Affiliation(s)
- Wenjia Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yongjie Zhou
- Department of Psychiatric Rehabilitation, Shenzhen Kangning Hospital, Shenzhen, China
| | - Ran Liu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Shuochi Wei
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Hang Xu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jiesi Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Li Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Tammy H Trinh
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Hanjing E Wu
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Dongmei Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xiangyang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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19
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Cariprazine, A Broad-Spectrum Antipsychotic for the Treatment of Schizophrenia: Pharmacology, Efficacy, and Safety. Adv Ther 2021; 38:3652-3673. [PMID: 34091867 PMCID: PMC8279990 DOI: 10.1007/s12325-021-01797-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 05/15/2021] [Indexed: 12/22/2022]
Abstract
Schizophrenia is characterized by positive, negative, cognitive, and affective symptoms. Antipsychotic medications, which work by blocking the dopamine D2 receptor, are the foundation of pharmacotherapy for schizophrenia to control positive symptoms. Cariprazine is a dopamine D3 receptor-preferring D3/D2 partial agonist antipsychotic that is approved for the treatment of schizophrenia (USA and European Union [EU]) and manic and depressive episodes associated with bipolar I disorder (USA). Partial agonist agents have a lower intrinsic activity at receptors than full agonists, so they act as either functional agonists or functional antagonists depending on the surrounding neurotransmitter environment. Beyond efficacy against positive symptoms, the unique D3-preferring partial agonist pharmacology of cariprazine suggests potential advantages against negative symptoms, and cognitive and functional impairment, which are challenging to treat. The efficacy and safety of cariprazine in adult patients with schizophrenia have been demonstrated in four short-term randomized, double-blind, placebo-controlled clinical trials, two long-term open-label studies, one relapse prevention study, and one prospective negative symptom study versus the active comparator risperidone. Additional post hoc investigations have supported efficacy across individual symptoms and domains in schizophrenia, as well as in diverse areas of interest including cognition, functioning, negative symptoms, hostility, and global well-being. This comprehensive review of cariprazine summarizes its pharmacologic profile, clinical trial evidence, and post hoc investigations. Collective evidence suggests that the pharmacology of cariprazine may offer broad-spectrum efficacy advantages for patients with schizophrenia, including effects against difficult-to-treat negative and cognitive symptoms, as well as functional improvements. Cariprazine was generally safe and well tolerated in patients with short- and long-term exposure and no new safety concerns were associated with longer-duration treatment. Trial registration ClinicalTrials.gov identifiers, NCT00404573, NCT00694707, NCT01104766, NCT01104779, NCT01412060, NCT00839852, NCT01104792.
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20
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Vauth R, Carpiniello B, Turczyński J, Ivanov M, Cherubin P, Lahaye M, Schreiner A. Relationship between clinical outcomes measures and personal and social performance functioning in a prospective, interventional study in schizophrenia. Int J Methods Psychiatr Res 2021; 30:e1855. [PMID: 33355966 PMCID: PMC8170566 DOI: 10.1002/mpr.1855] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 08/12/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES To explore clinical and demographic characteristics impacting patient functioning by determining extent of overlap in factors driving change in Personal and Social Performance (PSP) and other clinical outcomes. METHODS Post-hoc analysis from a single-arm trial of paliperidone extended release in adult patients with nonacute symptomatic schizophrenia. Psychosocial functioning measures: PSP, Clinical Global Impression-Severity (CGI-S), Positive and Negative Syndrome Scale (PANSS), Short-Form 36 (SF-36), treatment satisfaction, sleep quality/daytime drowsiness, and Extrapyramidal Symptoms Rating Scale. RESULTS Highest correlations with PSP total score change included PANSS total score change (Spearman's r = 0.607), PANSS general psychopathology change (r = 0.579), and CGI-S change (r = 0.569). A PSP score change of -32 predicted 90% probability of deterioration in CGI-S (score change of ≥1). The power of PSP change to predict PANSS total score change was lower. Linear stepwise regression demonstrated independent relationships for PSP change and: PANSS total change; CGI-S change; SF-36 Mental Component change; treatment satisfaction at endpoint; PSP at baseline; previous psychiatric hospitalizations. R 2 = 0.55 meant that 45% of PSP variation could not be explained by other clinical outcome measures. CONCLUSIONS Psychosocial functioning improvement is important in schizophrenia. PSP may be valuable for assessing functioning; it encompasses psychosocial and clinical factors not measured by other established assessments.
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Affiliation(s)
- Roland Vauth
- Center for Mental Health, Department of Psychiatry and Psychotherapy, University Hospital of Psychiatry Basel, University of Basel, Basel, Switzerland
| | - Bernardo Carpiniello
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Jacek Turczyński
- Department of Developmental, Psychotic, and Geriatric Psychiatry, Medical University of Gdańsk, Gdańsk, Poland
| | - Mikhail Ivanov
- St Petersburg Psychoneurological Research Institute, St Petersburg, Russia
| | - Pierre Cherubin
- Medical Affairs EMEA, Janssen-Cilag, Issy-les-Moulineaux, France
| | | | - Andreas Schreiner
- Medical & Scientific Affairs EMEA, Janssen-Cilag GmbH, Neuss, Germany
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21
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Podichetty JT, Silvola RM, Rodriguez-Romero V, Bergstrom RF, Vakilynejad M, Bies RR, Stratford RE. Application of machine learning to predict reduction in total PANSS score and enrich enrollment in schizophrenia clinical trials. Clin Transl Sci 2021; 14:1864-1874. [PMID: 33939284 PMCID: PMC8504834 DOI: 10.1111/cts.13035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/28/2021] [Accepted: 02/16/2021] [Indexed: 11/28/2022] Open
Abstract
Clinical trial efficiency, defined as facilitating patient enrollment, and reducing the time to reach safety and efficacy decision points, is a critical driving factor for making improvements in therapeutic development. The present work evaluated a machine learning (ML) approach to improve phase II or proof‐of‐concept trials designed to address unmet medical needs in treating schizophrenia. Diagnostic data from the Clinical Antipsychotic Trials of Intervention Effectiveness (CATIE) trial were used to develop a binary classification ML model predicting individual patient response as either “improvement,” defined as greater than 20% reduction in total Positive and Negative Syndrome Scale (PANSS) score, or “no improvement,” defined as an inadequate treatment response (<20% reduction in total PANSS). A random forest algorithm performed best relative to other tree‐based approaches in model ability to classify patients after 6 months of treatment. Although model ability to identify true positives, a measure of model sensitivity, was poor (<0.2), its specificity, true negative rate, was high (0.948). A second model, adapted from the first, was subsequently applied as a proof‐of‐concept for the ML approach to supplement trial enrollment by identifying patients not expected to improve based on their baseline diagnostic scores. In three virtual trials applying this screening approach, the percentage of patients predicted to improve ranged from 46% to 48%, consistently approximately double the CATIE response rate of 22%. These results show the promising application of ML to improve clinical trial efficiency and, as such, ML models merit further consideration and development.
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Affiliation(s)
- Jagdeep T Podichetty
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Rebecca M Silvola
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Violeta Rodriguez-Romero
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Richard F Bergstrom
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | | | - Robert R Bies
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York, USA.,Institute for Computational Data Science, University at Buffalo, State University of New York at Buffalo, Buffalo, New York, USA
| | - Robert E Stratford
- Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
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22
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Hudgens-Haney ME, Clementz BA, Ivleva EI, Keshavan MS, Pearlson GD, Gershon ES, Keedy SK, Sweeney JA, Gaudoux F, Bunouf P, Canolle B, Tonner F, Gatti-McArthur S, Tamminga CA. Cognitive Impairment and Diminished Neural Responses Constitute a Biomarker Signature of Negative Symptoms in Psychosis. Schizophr Bull 2020; 46:1269-1281. [PMID: 32043133 PMCID: PMC7505197 DOI: 10.1093/schbul/sbaa001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The treatment of negative symptoms (NS) in psychosis represents an urgent unmet medical need given the significant functional impairment it contributes to psychosis syndromes. The lack of progress in treating NS is impacted by the lack of known pathophysiology or associated quantitative biomarkers, which could provide tools for research. This current analysis investigated potential associations between NS and an extensive battery of behavioral and brain-based biomarkers in 932 psychosis probands from the B-SNIP database. The current analyses examined associations between PANSS-defined NS and (1) cognition, (2) pro-/anti-saccades, (3) evoked and resting-state electroencephalography (EEG), (4) resting-state fMRI, and (5) tractography. Canonical correlation analyses yielded symptom-biomarker constructs separately for each biomarker modality. Biomarker modalities were integrated using canonical discriminant analysis to summarize the symptom-biomarker relationships into a "biomarker signature" for NS. Finally, distinct biomarker profiles for 2 NS domains ("diminished expression" vs "avolition/apathy") were computed using step-wise linear regression. NS were associated with cognitive impairment, diminished EEG response amplitudes, deviant resting-state activity, and oculomotor abnormalities. While a connection between NS and poor cognition has been established, association to neurophysiology is novel, suggesting directions for future mechanistic studies. Each biomarker modality was related to NS in distinct and complex ways, giving NS a rich, interconnected fingerprint and suggesting that any one biomarker modality may not adequately capture the full spectrum of symptomology.
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Affiliation(s)
| | - Brett A Clementz
- Departments of Psychology and Neuroscience, Bio-Imaging Research Center, University of Georgia, Athens, GA
| | - Elena I Ivleva
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX
| | - Matcheri S Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Godfrey D Pearlson
- Departments of Psychiatry and Neurobiology, Yale University School of Medicine, New Haven, CT
- Institute of Living, Hartford Hospital, Hartford, CT
| | | | - Sarah K Keedy
- Department of Psychiatry, University of Chicago, Chicago, IL
| | - John A Sweeney
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, Cincinnati, OH
| | | | | | | | | | | | - Carol A Tamminga
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX
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23
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Zhang Z, Li Y, He F, Cui Y, Zheng Y, Li R. Sex differences in circulating neuregulin1-β1 and β-secretase 1 expression in childhood-onset schizophrenia. Compr Psychiatry 2020; 100:152176. [PMID: 32430144 DOI: 10.1016/j.comppsych.2020.152176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE Early-onset schizophrenia is a severe and rare form of schizophrenia that is clinically and neurobiologically continuous with the adult form of schizophrenia. Neuregulin1 (NRG1)-mediated signaling is crucial for early neurodevelopment, which exerts its function by limited β-secretase 1 (BACE1) proteolysis processing. However, circulating neuregulin1-β1 (NRG1-β1), an isoform of NRG1, and its cleavage enzyme BACE1 have not been studied in early-onset patients with schizophrenia. METHODS In this study, we collected plasma and clinical information from 71 young patients (7 ≤ age years ≤20) with schizophrenia and 53 age- and sex-matched healthy controls. Immunoassay was used to test levels of circulating NRG1-β1 and BACE1 expression. We further analyzed the relationship of disease-onset age and gender with NRG1-β1 and BACE1 levels. RESULTS We found that circulating plasma levels of NRG1-β1 were significantly decreased in young patients with early-onset schizophrenia. In males with childhood onset schizophrenia (COS), NRG1-β1 was reduced and was inversely correlated with positive symptom of PANSS; moreover, these male patients with higher plasma BACE1 levels showed more severe general symptoms of PANSS and defective social functioning; whereas, no aforementioned results were found in adolescent-onset schizophrenia (AOS). Notably, young female patients with COS and AOS had no significant change in NRG1-β1 and BACE1, which demonstrated a sex-dependent effect in early-onset schizophrenia. CONCLUSION Our results suggest that decreased levels of NRG1-β1 and its cleavage enzyme BACE1 contribute to increased risk of etiology of schizophrenia. Synthetic biomarkers may have clinical applications for the early diagnosis of male COS.
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Affiliation(s)
- Zhengrong Zhang
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing 100088, China
| | - Yuhong Li
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing 100069, China
| | - Fan He
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing 100088, China
| | - Yonghua Cui
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing 100088, China
| | - Yi Zheng
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing 100088, China.
| | - Rena Li
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing 100088, China; Beijing Institute for Brain Disorders, Capital Medical University, Beijing 100069, China.
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24
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Korman N, Armour M, Chapman J, Rosenbaum S, Kisely S, Suetani S, Firth J, Siskind D. High Intensity Interval training (HIIT) for people with severe mental illness: A systematic review & meta-analysis of intervention studies- considering diverse approaches for mental and physical recovery. Psychiatry Res 2020; 284:112601. [PMID: 31883740 DOI: 10.1016/j.psychres.2019.112601] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 12/22/2022]
Abstract
There is a mortality gap of 15 to 20 years for people with severe mental illness (SMI - psychotic spectrum, bipolar, major depressive disorders). Modifiable risk factors include inactivity and low cardiorespiratory fitness (CRF). Exercise can improve mental and physical outcomes; optimal type and intensity of exercise for people with SMI has yet to be determined. High Intensity Interval training (HIIT) is an exercise with distinct cardio-metabolic advantages in other disease populations compared to traditional moderate intensity continuous training (MCT). We investigated the feasibility and efficacy of HIIT for people with SMI. Major electronic databases were searched, identifying HIIT studies for adults experiencing SMI.Data on feasibility, safety, study design, sample characteristics, and physical and psychological outcomes were extracted and systematically reviewed. Meta-analyses were conducted within group, pre and post HIIT interventions, and between group, to compare HIIT with control conditions. Nine articles were identified including three pre/post studies, one non randomised and five randomised trials, (366 participants, 45.1% female). HIIT appears as feasible as MCT, with few safety concerns. Following HIIT, there was a moderate improvement in CRF and depression. There was no difference between HIIT and MCT for adherence or CRF.HIIT improved depression more than MCT.
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Affiliation(s)
- Nicole Korman
- Metro South Addiction and Mental Health Services, Brisbane, Australia; School of Medicine, University of Queensland, Brisbane, Australia.
| | - Michael Armour
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - Justin Chapman
- Metro South Addiction and Mental Health Services, Brisbane, Australia; Queensland Institute of Medical Research, Brisbane, Australia
| | - Simon Rosenbaum
- School of Psychiatry, University of New South Wales, Australia
| | - Steve Kisely
- Metro South Addiction and Mental Health Services, Brisbane, Australia; School of Medicine, University of Queensland, Brisbane, Australia
| | - Shuichi Suetani
- Metro South Addiction and Mental Health Services, Brisbane, Australia; Queensland Institute of Medical Research, Brisbane, Australia
| | - Joseph Firth
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia; Division of Psychology and Mental Health, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Dan Siskind
- Metro South Addiction and Mental Health Services, Brisbane, Australia; School of Medicine, University of Queensland, Brisbane, Australia
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25
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Carrithers B, El-Mallakh RS. Transdermal Asenapine in Schizophrenia: A Systematic Review. Patient Prefer Adherence 2020; 14:1541-1551. [PMID: 32943849 PMCID: PMC7468370 DOI: 10.2147/ppa.s235104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 06/26/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Asenapine is a novel antipsychotic that has demonstrated efficacy in controlling psychosis in schizophrenia and mania in bipolar illness. It must be administered as a sublingual formulation because it is nearly completely metabolized in the first pass through the liver. Recently, a transdermal formulation of asenapine has been approved for schizophrenia by the Food and Drug Administration. METHODS A systematic review of transdermal asenapine was done utilizing the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) model. DISCUSSION There are several formulations of transdermal asenapine but only Secuado® has been approved for clinical use. Total bioavailability is 35%. Peak plasma concentration (Cmax) is 4 ng/mL and occurs within 1 hr (Tmax); elimination half-life (t1/2) is 24 hrs (range 13.4 to 39.2 h). Asenapine is highly bound (95%) to albumin and α1-acid glycoprotein. It has a unique receptor profile in which it functions as an antagonist at multiple receptors with affinity that is higher than D2 (Ki = 1.3) including D3, D4, 5HT2A, 5HT2C, 5HT2B, 5HT7, 5HT6, H1, and α2. This profile suggests that asenapine may be of particular value off label for bipolar depression, anxiety, and aggression. Transdermal asenapine was only tested in one randomized, placebo-controlled study of acute psychosis in schizophrenia. It was superior to placebo at week 6 with nearly one-third of patients experiencing >30% improvement in total PANSS score which translates in a number needed to treat (NNT) of 9.
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Affiliation(s)
- Brennan Carrithers
- Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, Louisville, Kentucky40202, USA
| | - Rif S El-Mallakh
- Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, Louisville, Kentucky40202, USA
- Correspondence: Rif S El-Mallakh Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, 401 East Chestnut Street, Suite 610, Louisville, Kentucky40202, USATel +1 502 588 – 4450Fax +1 502 588 - 9539 Email
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