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Khalid J, Aparasu RR. Adverse effects associated with antipsychotic use in older adults. Expert Opin Drug Saf 2024; 23:1157-1171. [PMID: 39076106 DOI: 10.1080/14740338.2024.2386377] [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: 12/12/2023] [Revised: 06/17/2024] [Accepted: 07/16/2024] [Indexed: 07/31/2024]
Abstract
INTRODUCTION Antipsychotic (AP) medications are extensively utilized for diverse psychiatric and non-psychiatric conditions, but they are associated with significant adverse effects in older adults. This expert opinion review provides an updated profile of adverse effects associated with AP medications in older adults. AREAS COVERED This review specifically examines real-world evidence for adverse events associated with AP use, including all-cause mortality, falls and fractures, diabetes, cardiovascular and cerebrovascular events, acute kidney injury, venous thromboembolism/pulmonary embolism, extrapyramidal symptoms, and infections based on real-world evidence. EXPERT OPINION This comprehensive safety review of AP revealed multiple adverse events in older adults. All-cause mortality, more associated with typical APs than atypicals, underscores a dose-dependent risk, urging cautious prescribing practices and avoidance of typical APs. Falls/fractures associated with atypical APs highlight the importance of judicious dosing and -close monitoring, especially after initiation. Cardiovascular risks, particularly stroke, with AP use emphasize the need for vigilant monitoring. Extrapyramidal symptoms, more linked to typical APs, also pose a significant risk in older adults. Pneumonia and pulmonary embolism/venous thromboembolism demand cautious consideration of APs, prompting the need for additional real-world studies to inform clinical practice. Conflicting evidence on diabetes and acute kidney injury necessitates ongoing studies and further research in older adults.
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Affiliation(s)
- Javeria Khalid
- Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, Houston, Texas, USA
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Yang Z, Takeuchi H, Yee JY, See YM, Tang C, Ng BT, Lee J. Once-daily versus divided dosing regimens of clozapine: A cross-sectional study in Singapore. Schizophr Res 2024; 268:66-73. [PMID: 37833207 DOI: 10.1016/j.schres.2023.10.001] [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: 05/30/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
INTRODUCTION Clozapine is recognized as the gold standard medication for treatment-resistant schizophrenia. Despite the general recommendation of administering in a divided dosing regimen, clozapine is often prescribed once daily at night in clinical practice. This study aims to compare patient characteristics, psychiatric symptoms, side effects, and plasma concentration of clozapine between once-daily dosing and divided dosing regimens. METHODS This cross-sectional study included 159 participants with treatment-resistant schizophrenia or schizoaffective disorder. Participant's demographic information, anthropometric data, and medical history were collected. Their psychiatric symptoms, cognition, functioning, and side effects were evaluated. RESULTS Once-daily dosing regimen was associated with younger age and competitive employment. Lower clinical symptom severity, better functioning and cognitive performance were observed in the once-daily dosing group. Lower daily dose of clozapine, trough plasma concentrations of clozapine and norclozapine were also significantly associated with once-daily dosing regimen. CONCLUSION The study results support once-daily dosing of clozapine as a viable option to selected patients in clinical practice, as no association of severe symptoms or side effects were associated with once-daily dosing regimen. More studies are needed to examine the relationship between clinical outcomes and clozapine dosing regimen.
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Affiliation(s)
- Zixu Yang
- Research Division, Institute of Mental Health, Singapore
| | - Hiroyoshi Takeuchi
- Department of Neuropsychiatry, Keio University School of Medicine, Japan
| | - Jie Yin Yee
- Research Division, Institute of Mental Health, Singapore
| | - Yuen Mei See
- Research Division, Institute of Mental Health, Singapore
| | - Charmaine Tang
- Department of Psychosis, Institute of Mental Health, Singapore
| | - Boon Tat Ng
- Department of Pharmacy, Institute of Mental Health, Singapore
| | - Jimmy Lee
- Department of Psychosis, Institute of Mental Health, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
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Kanemoto H, Kawasaki T. Care for Social Isolation and Loneliness in a Case With Late-Onset Delusional Disorder. Cureus 2024; 16:e56697. [PMID: 38646378 PMCID: PMC11032510 DOI: 10.7759/cureus.56697] [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: 03/21/2024] [Indexed: 04/23/2024] Open
Abstract
Late-onset psychosis refers to the development of psychotic symptoms after the age of 40 and can encompass various conditions like schizophrenia, mood disorders with psychotic features, and delusional disorder. Non-pharmacological interventions are critically important in older adults with psychosis, especially considering the lack of evidence for the efficacy of antipsychotics and the high risk of side effects. Social isolation is recognized as one of the risks of late-onset psychosis, and interventions to eliminate this risk are becoming increasingly important in Japan, where social isolation among older people is widespread as society ages. We present a case of late-onset delusional disorder in which multidimensional interventions for social isolation and loneliness, which have significant impacts on symptoms, were effective in achieving persistent remission. The case involved a woman in her mid-70s who began to complain of paranoia that taking a painkiller recommended by her husband caused persistent pain. Her husband's hospitalization and the deterioration of her relationship with her children resulted in her becoming socially isolated, which intensified her delusions and led to aggressive behavior and depression. Although antipsychotic medications had a limited effect, remission was achieved through supportive psychotherapy, cognitive therapy, family education, participation in group occupational therapy, and the introduction of daycare services, which were implemented to reduce loneliness and social isolation. Specifically, supportive psychotherapy and family education for her loneliness, awareness of another possible cause of pain that she developed through Socratic questioning, and environmental adjustments played important roles in preparing her to accept cognitive therapy, achieve delusional remission, and maintain her state of remission, respectively. The interventions implemented in this case provide insights for addressing social isolation and loneliness in late-onset psychosis.
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Affiliation(s)
- Hideki Kanemoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, JPN
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Devanand DP, Jeste DV, Stroup TS, Goldberg TE. Overview of late-onset psychoses. Int Psychogeriatr 2024; 36:28-42. [PMID: 36866576 DOI: 10.1017/s1041610223000157] [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] [Indexed: 03/04/2023]
Abstract
BACKGROUND Several etiologies can underlie the development of late-onset psychosis, defined by first psychotic episode after age 40 years. Late-onset psychosis is distressing to patients and caregivers, often difficult to diagnose and treat effectively, and associated with increased morbidity and mortality. METHODS The literature was reviewed with searches in Pubmed, MEDLINE, and the Cochrane library. Search terms included "psychosis," "delusions," hallucinations," "late onset," "secondary psychoses," "schizophrenia," bipolar disorder," "psychotic depression," "delirium," "dementia," "Alzheimer's," "Lewy body," "Parkinson's, "vascular dementia," and "frontotemporal dementia." This overview covers the epidemiology, clinical features, neurobiology, and therapeutics of late-onset psychoses. RESULTS Late-onset schizophrenia, delusional disorder, and psychotic depression have unique clinical characteristics. The presentation of late-onset psychosis requires investigation for underlying etiologies of "secondary" psychosis, which include neurodegenerative, metabolic, infectious, inflammatory, nutritional, endocrine, and medication toxicity. In delirium, psychosis is common but controlled evidence is lacking to support psychotropic medication use. Delusions and hallucinations are common in Alzheimer's disease, and hallucinations are common in Parkinson's disease and Lewy body dementia. Psychosis in dementia is associated with increased agitation and a poor prognosis. Although commonly used, no medications are currently approved for treating psychosis in dementia patients in the USA and nonpharmacological interventions need consideration. CONCLUSION The plethora of possible causes of late-onset psychosis requires accurate diagnosis, estimation of prognosis, and cautious clinical management because older adults have greater susceptibility to the adverse effects of psychotropic medications, particularly antipsychotics. Research is warranted on developing and testing efficacious and safe treatments for late-onset psychotic disorders.
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Affiliation(s)
- D P Devanand
- Department of Psychiatry, New York State Psychiatric Institute and Columbia University Irving Medical Center, New York, USA
| | - Dilip V Jeste
- Departments of Psychiatry, Neurosciences University of California San Diego, La Jolla, USA
| | - T Scott Stroup
- Department of Psychiatry, New York State Psychiatric Institute and Columbia University Irving Medical Center, New York, USA
| | - Terry E Goldberg
- Department of Psychiatry, New York State Psychiatric Institute and Columbia University Irving Medical Center, New York, USA
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Alisauskiene R, Johnsen E, Gjestad R, Kroken RA, Kjelby E, Sinkeviciute I, Fathian F, Joa I, Reitan SK, Rettenbacher M, Løberg EM. Does drug use affect the efficacy of amisulpride, aripiprazole and olanzapine in patients with schizophrenia spectrum disorders? Results from a pragmatic, randomised study. Gen Hosp Psychiatry 2023; 83:185-193. [PMID: 37269769 DOI: 10.1016/j.genhosppsych.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Drug use is prevalent in patients with schizophrenia spectrum disorders (SSD) but there is limited knowledge about the influence of drug use on the effectiveness of antipsychotic medication. This secondary explorative study compared the effectiveness of three antipsychotics in patients with SSD, with and without drug use. METHODS The BeSt InTro multi-centre, head to head, rater-blinded randomised study compared amisulpride, aripiprazole and olanzapine over a 1-year follow-up period. All patients (n = 144) were aged ≥18 years and met the ICD-10 criteria for SSD (F20-29). Clinical symptoms were assessed using the Positive and Negative Syndrome Scale (PANSS). The primary outcome was reduction of a PANSS positive subscale score. RESULTS At baseline, 38% of all patients reported drug use in the last 6 months before inclusion, with cannabis as the main drug (85%), followed by amphetamine-type stimulants (45%), sedatives (26%), hallucinogens (19%), cocaine (13%), opiates (4%), GHB (4%), solvents (4%), analgesics (4%) and anabolic steroids (2%). The predominant pattern was the use of several drugs. There were no significant overall differences in the PANSS positive subscale score reduction for the three studied antipsychotics among patients either with or without drug use. In the drug use group, older patients treated with amisulpride showed a greater PANSS positive subscale score reduction during the treatment period compared to younger patients. CONCLUSION The current study showed that drug use does not appear to affect the overall effectiveness of amisulpride, aripiprazole and olanzapine in patients with SSD. However, amisulpride may be a particularly suitable choice for older patients with drug use.
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Affiliation(s)
- Renata Alisauskiene
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway.
| | - Erik Johnsen
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Postbox 7804, N-5020 Bergen, Norway.
| | - Rolf Gjestad
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; Centre for Research and Education in Forensic Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway.
| | - Rune A Kroken
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Postbox 7804, N-5020 Bergen, Norway.
| | - Eirik Kjelby
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway.
| | - Igne Sinkeviciute
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway.
| | - Farivar Fathian
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway.
| | - Inge Joa
- Network for Clinical Psychosis Research, Division of Psychiatry, Stavanger University Hospital, Stavanger, Norway.
| | - Solveig Klæbo Reitan
- Department of Mental Health, Faculty of Medicine and Health Sciences, NTNU, Trondheim, Norway.
| | - Maria Rettenbacher
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of Innsbruck, Innrain, 52, Innsbruck, Austria.
| | - Else-Marie Løberg
- Division of Psychiatry, Haukeland University Hospital, Sandviksleitet 1, N-5035 Bergen, Norway; Department of Addiction Medicine, Haukeland University Hospital, Østre Murallmenningen 7, Bergen, Norway; Department of Clinical Psychology, University of Bergen, Christies gate 12, N-5015 Bergen, Norway; NORMENT Centre of Excellence, Haukeland University Hospital, Bergen, Norway.
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Yang CC, Wang XY, Chou PH, Lin CH. Valproate-related neutropenia and lithium-related leukocytosis in patients treated with clozapine: a retrospective cohort study. BMC Psychiatry 2023; 23:170. [PMID: 36922799 PMCID: PMC10018892 DOI: 10.1186/s12888-023-04659-2] [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: 12/30/2022] [Accepted: 03/06/2023] [Indexed: 03/17/2023] Open
Abstract
BACKGROUND Neutropenia is a noteworthy side effect of clozapine, which might warrant this drugs' discontinuance for safety. Studies have revealed that the risk of neutropenia increases with concurrent administration of valproate, but the evidence was limited. Conversely, lithium may have an ameliorating effect on clozapine-induced neutropenia. This study explored the effects of valproate and lithium on white blood cell counts in patients treated with clozapine. METHODS We retrospectively investigated the electronic medical records from one tertiary psychiatric hospital in Taiwan and enrolled patients discharged between January 1, 2006, and December 31, 2017, with clozapine prescriptions. We scrutinized their demographic data, medications, and hematological results at discharge and during follow-up outpatient clinic visits over the subsequent 3 years. Patients were classified into four groups: clozapine only (CLO), clozapine and valproate (CLO + VAL), clozapine and lithium (CLO + Li), and clozapine, valproate, and lithium (CLO + VAL + Li). We also identified hematological events (neutropenia or leukocytosis) of these patients during outpatient follow-ups. RESULTS Of the included 1084 patients, 55(5.1%) developed neutropenia. Concurrent valproate use (odds ratio [OR] = 3.49) and older age (p = .007) were identified as risk factors. Moreover, 453 (41.79%) patients developed leukocytosis. Younger age; male sex; and concurrent use of lithium (OR = 3.39, p < .001), clozapine daily dosage, and benzodiazepines were the risk factors for leukocytosis. CONCLUSION Concurrent valproate use and older age are associated with the development of neutropenia in patients treated with clozapine. Concurrent lithium usage, younger age, male sex, and concurrent benzodiazepine use might be related to leukocytosis.
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Affiliation(s)
- Chia-Chun Yang
- Department of General Psychiatry, Taoyuan Psychiatric Center, No. 71, Longshou St., Taoyuan Dist, 33058 Taoyuan City, Taiwan
| | - Xi-Yu Wang
- Department of General Psychiatry, Taoyuan Psychiatric Center, No. 71, Longshou St., Taoyuan Dist, 33058 Taoyuan City, Taiwan
| | - Po-Han Chou
- Department of Psychiatry, China Medical University Hsinchu Hospital, Hsinchu, Taiwan
| | - Ching-Hua Lin
- grid.414813.b0000 0004 0582 5722Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung, Taiwan
- grid.412019.f0000 0000 9476 5696Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Weng J, Zhang L, Yu W, Zhao N, Zhu B, Ye C, Zhang Z, Ma C, Li Y, Yu Y, Li H. Risk factors, clinical correlates, and social functions of Chinese schizophrenia patients with drug-induced parkinsonism: A cross-sectional analysis of a multicenter, observational, real-world, prospective cohort study. Front Pharmacol 2023; 14:1077607. [PMID: 36937864 PMCID: PMC10020528 DOI: 10.3389/fphar.2023.1077607] [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: 10/23/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Background: Drug-induced parkinsonism (DIP) is the most prevalent neurological side effect of antipsychotics in the Chinese population. Early prevention, recognition, and treatment of DIP are important for the improvement of treatment outcomes and medication adherence of schizophrenia patients. However, the risk factors of DIP and the impact on the clinical syndromes of schizophrenia remain unknown. Aim: The goal of this study was to explore the risk factors, clinical correlates, and social functions of DIP in Chinese schizophrenia patients. Methods: A cross-sectional analysis of a multicenter, observational, real-world, prospective cohort study of the Chinese schizophrenia population with a baseline assessment was conducted from the year 2012 to 2018. Participants were recruited from four mental health centers in Shanghai and totaled 969 subjects. Sociodemographic data, drug treatment, and clinical variables were compared between the DIP group and the non-DIP group. Variables that correlated with the induction of DIP, and with p≤ 0.1, were included in the binary logistic model for analyzing the risk factors of DIP. First generation antipsychotics (FGA)/second generation antipsychotics (SGA) model and high and low/medium D2 receptor antipsychotics were analyzed respectively to control the bias of co-linearity. All risk factors derived from the a forementioned models and clinical variables with p≤ 0.1 were included in the multivariate analysis of clinical correlates and social function of DIP patients. The Positive and Negative Syndrome Scale (PANSS) model and the personal and social performance (PSP) model were analyzed separately to control for co-linearity bias. Results: Age (OR = 1.03, p< 0.001), high D2 receptor antagonist antipsychotic dose (OR = 1.08, p = 0.032), and valproate dose (OR = 1.01, p = 0.001) were the risk factors of DIP. FGA doses were not a significant contributor to the induction of DIP. Psychiatric symptoms, including more severe negative symptoms (OR = 1.09, p< 0.001), lower cognition status (OR = 1.08, p = 0.033), and lower excited symptoms (OR = 0.91, p = 0.002), were significantly correlated with DIP induction. Social dysfunction, including reduction in socially useful activities (OR = 1.27, p = 0.004), lower self-care capabilities (OR = 1.53, p< 0.001), and milder disturbing and aggressive behavior (OR = 0.65, p< 0.001), were significantly correlated with induction of DIP. Valproate dose was significantly correlated with social dysfunction (OR = 1.01, p = 0.001) and psychiatric symptoms (OR = 1.01, p = 0.004) of DIP patients. Age may be a profound factor that affects not only the induction of DIP but also the severity of psychiatric symptoms (OR = 1.02, p< 0.001) and social functions (OR = 1.02, p< 0.001) of schizophrenia patients with DIP. Conclusion: Age, high D2 receptor antagonist antipsychotic dose, and valproate dose are risk factors for DIP, and DIP is significantly correlated with psychiatric symptoms and social performance of Chinese schizophrenia patients. The rational application or discontinuation of valproate is necessary. Old age is related to psychotic symptoms and social adaption in Chinese schizophrenic patients, and early intervention and treatment of DIP can improve the prognosis and social performance of schizophrenia patients. Clinical Trial Registration: Identifier: NCT02640911.
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Affiliation(s)
- Jiajun Weng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Zhongshan Hospital, Shanghai, China
| | - Lei Zhang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjuan Yu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Nan Zhao
- Shanghai Pudong District Mental Health Center, Shanghai, China
| | - Binggen Zhu
- Shanghai Pudong District Mental Health Center, Shanghai, China
| | - Chengyu Ye
- Shanghai Zhongshan Hospital, Shanghai, China
- Shanghai Jiading District Mental Health Center, Shanghai, China
| | - Zhanxing Zhang
- Shanghai Clinical Research Center for Mental Health, Shanghai, China
| | - Changlin Ma
- Shanghai Jiading District Mental Health Center, Shanghai, China
| | - Yan Li
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiming Yu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yiming Yu, ; Huafang Li,
| | - Huafang Li
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Clinical Research Center for Mental Health, Shanghai, China
- *Correspondence: Yiming Yu, ; Huafang Li,
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Reynolds CF, Jeste DV, Sachdev PS, Blazer DG. Mental health care for older adults: recent advances and new directions in clinical practice and research. World Psychiatry 2022; 21:336-363. [PMID: 36073714 PMCID: PMC9453913 DOI: 10.1002/wps.20996] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The world's population is aging, bringing about an ever-greater burden of mental disorders in older adults. Given multimorbidities, the mental health care of these people and their family caregivers is labor-intensive. At the same time, ageism is a big problem for older people, with and without mental disorders. Positive elements of aging, such as resilience, wisdom and prosocial behaviors, need to be highlighted and promoted, both to combat stigma and to help protect and improve mental health in older adults. The positive psychiatry of aging is not an oxymoron, but a scientific construct strongly informed by research evidence. We champion a broader concept of geriatric psychiatry - one that encompasses health as well as illness. In the present paper, we address these issues in the context of four disorders that are the greatest source of years lived with disability: neurocognitive disorders, major depression, schizophrenia, and substance use disorders. We emphasize the need for implementation of multidisciplinary team care, with comprehensive assessment, clinical management, intensive outreach, and coordination of mental, physical and social health services. We also underscore the need for further research into moderators and mediators of treatment response variability. Because optimal care of older adults with mental disorders is both patient-focused and family-centered, we call for further research into enhancing the well-being of family caregivers. To optimize both the safety and efficacy of pharmacotherapy, further attention to metabolic, cardiovascular and neurological tolerability is much needed, together with further development and testing of medications that reduce the risk for suicide. At the same time, we also address positive aging and normal cognitive aging, both as an antidote to ageism and as a catalyst for change in the way we think about aging per se and late-life mental disorders more specifically. It is in this context that we provide directions for future clinical care and research.
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Affiliation(s)
| | - Dilip V. Jeste
- Department of PsychiatryUniversity of California San DiegoLa JollaCAUSA
| | | | - Dan G. Blazer
- Department of Psychiatry and Behavioral SciencesDuke UniversityDurhamNCUSA
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He XY, Migliorini C, Huang ZH, Wang F, Zhou R, Chen ZL, Xiao YN, Wang QW, Wang SB, Harvey C, Hou CL. Quality of life in patients with schizophrenia: A 2-year cohort study in primary mental health care in rural China. Front Public Health 2022; 10:983733. [PMID: 36159297 PMCID: PMC9495714 DOI: 10.3389/fpubh.2022.983733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/17/2022] [Indexed: 01/25/2023] Open
Abstract
Objective Quality of life (QoL) has been always an important way to evaluate the outcomes of schizophrenia, but there have been few previous longitudinal studies and few in middle-income countries. This study aimed to explore the QoL in Chinese patients with schizophrenia treated in primary mental health care and the risk factors of QoL over time. Methods Patients with schizophrenia treated in primary mental health care in rural/regional areas in Luoding, Guangdong, PR China, were evaluated with an extended questionnaire including the Chinese version of the World Health Organization Quality of Life (WHOQOL-BREF) at baseline and 2-year follow-up. Bivariate and multivariate analyses were conducted including Generalized Estimated Equation analyses (GEE). Results Four hundred and ninety-one patients with schizophrenia in primary care completed the 2-year follow up evaluation. The QoL physical, environmental, and social relationships domains showed improvement after the 2-year period, but the psychological domain did not. GEE results showed that earlier age of onset, older age, being employed, being unmarried, the thicker waist circumference, less use of clozapine or other SGAs, fewer hospitalizations, more frequent insomnia, more severe depressive and negative symptoms as well as worse treatment insight were independently associated with poor QoL in patients with schizophrenia. Conclusion According to our results, to improve the quality of life of patients with schizophrenia in primary care, we should pay more attention to the treatment of depression, negative and insomnia symptoms of schizophrenia, the choice and dosage of antipsychotic medication and improvement in the treatment compliance. The combined use of educational and behavioral strategies may improve treatment adherence.
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Affiliation(s)
- Xiao-Yan He
- Liuzhou Worker's Hospital, Liuzhou, China,Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China
| | - Christine Migliorini
- Psychosocial Research Centre, Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia
| | - Zhuo-Hui Huang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China
| | - Fei Wang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China
| | - Rui Zhou
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China
| | | | | | - Qian-Wen Wang
- Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Shi-Bin Wang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China
| | - Carol Harvey
- Psychosocial Research Centre, Department of Psychiatry, University of Melbourne, Melbourne, VIC, Australia
| | - Cai-Lan Hou
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Mental Health Center, Guangzhou, China,*Correspondence: Cai-Lan Hou ;
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Chen J, Wu S, Li F. Cognitive Neural Mechanism of Backward Inhibition and Deinhibition: A Review. Front Behav Neurosci 2022; 16:846369. [PMID: 35668866 PMCID: PMC9165717 DOI: 10.3389/fnbeh.2022.846369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/19/2022] [Indexed: 11/18/2022] Open
Abstract
Task switching is one of the typical paradigms to study cognitive control. When switching back to a recently inhibited task (e.g., “A” in an ABA sequence), the performance is often worse compared to a task without N-2 task repetitions (e.g., CBA). This difference is called the backward inhibitory effect (BI effect), which reflects the process of overcoming residual inhibition from a recently performed task (i.e., deinhibition). The neural mechanism of backward inhibition and deinhibition has received a lot of attention in the past decade. Multiple brain regions, including the frontal lobe, parietal, basal ganglia, and cerebellum, are activated during deinhibition. The event-related potentials (ERP) studies have shown that deinhibition process is reflected in the P1/N1 and P3 components, which might be related to early attention control, context updating, and response selection, respectively. Future research can use a variety of new paradigms to separate the neural mechanisms of BI and deinhibition.
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Affiliation(s)
- Jiwen Chen
- School of Psychology, Jiangxi Normal University, Nanchang, China
| | - Shujie Wu
- School of Psychology, Jiangxi Normal University, Nanchang, China
| | - Fuhong Li
- School of Psychology, Jiangxi Normal University, Nanchang, China
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Zolk O, Greiner T, Schneider M, Heinze M, Dahling V, Ramin T, Grohmann R, Bleich S, Zindler T, Toto S, Seifert J. Antipsychotic drug treatment of schizophrenia in later life: Results from the European cross-sectional AMSP study. World J Biol Psychiatry 2022; 23:374-386. [PMID: 34907857 DOI: 10.1080/15622975.2021.2011403] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVES To investigate the relationship between patient age and the selection and dosage of antipsychotic drugs (APDs) for treatment of schizophrenia. We describe age effects for multiple individual APDs, thus allowing comparisons between drugs. METHODS Prescription data of 32,062 inpatients with schizophrenia from 2000 to 2017 were obtained from the Drug Safety Program in Psychiatry (AMSP) database. APD selection and dosage were related to patient age with sex as an influencing variable. Moreover, a systematic search of current guideline recommendations on APD treatment in patients with schizophrenia aged ≥65 years was performed. RESULTS Eighty percentof elderly patients (≥65 years) received a second-generation APD, most commonly risperidone. The dosage of APDs increased with age until about age 40 years, then decreased slowly at first and more steeply beyond age 55 years. The influence of age as well as sex on dosage partly differed between the individual drugs. Only one of eight schizophrenia guidelines systematically addressed specific aspects of pharmacotherapy in older adults. CONCLUSIONS In clinical routine, age has a significant impact on selection and dosing of APDs. Information on optimising pharmacotherapy in older adults with schizophrenia from clinical trials is needed. Guidelines should be improved regarding APD therapy specifically for older adults.
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Affiliation(s)
- Oliver Zolk
- Institute of Clinical Pharmacology of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Timo Greiner
- Institute of Clinical Pharmacology of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Michael Schneider
- University Clinic for Psychiatry and Psychotherapy of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Martin Heinze
- University Clinic for Psychiatry and Psychotherapy of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Volker Dahling
- University Clinic for Psychiatry and Psychotherapy of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Tabea Ramin
- Institute of Clinical Pharmacology of the Brandenburg Medical School, Immanuel Klinik Rüdersdorf, Rüdersdorf, Germany
| | - Renate Grohmann
- Department of Psychiatry and Psychotherapy, LMU University Hospital Munich, Munich, Germany
| | - Stefan Bleich
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover, Germany
| | - Tristan Zindler
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover, Germany
| | - Sermin Toto
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover, Germany
| | - Johanna Seifert
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover, Germany
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12
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Kusudo K, Ochi R, Nakajima S, Suzuki T, Mamo D, Caravaggio F, Mar W, Gerretsen P, Mimura M, Pollock BG, Mulsant BH, Graff-Guerrero A, Rajji TK, Uchida H. Decision tree classification of cognitive functions with D 2 receptor occupancy and illness severity in late-life schizophrenia. Schizophr Res 2022; 241:113-115. [PMID: 35121434 DOI: 10.1016/j.schres.2022.01.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/14/2022] [Accepted: 01/21/2022] [Indexed: 12/25/2022]
Affiliation(s)
- Keisuke Kusudo
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Ryo Ochi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Shinichiro Nakajima
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Brain Health Imaging Centre-Multimodal Imaging Group in Geriatrics and Schizophrenia, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Takefumi Suzuki
- Department of Neuropsychiatry and Clinical Ethics, University of Yamanashi, Yamanashi, Japan
| | - David Mamo
- Departments of Psychiatry & Gerontology, University of Malta, Msida, Malta
| | - Fernando Caravaggio
- Brain Health Imaging Centre-Multimodal Imaging Group in Geriatrics and Schizophrenia, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Wanna Mar
- Brain Health Imaging Centre-Multimodal Imaging Group in Geriatrics and Schizophrenia, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Philip Gerretsen
- Brain Health Imaging Centre-Multimodal Imaging Group in Geriatrics and Schizophrenia, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Bruce G Pollock
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Benoit H Mulsant
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Ariel Graff-Guerrero
- Brain Health Imaging Centre-Multimodal Imaging Group in Geriatrics and Schizophrenia, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
| | - Tarek K Rajji
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Toronto Dementia Research Alliance, University of Toronto, Toronto, Ontario, Canada
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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13
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Hashimoto N, Yasui-Furukori N, Hasegawa N, Ishikawa S, Numata S, Hori H, Iida H, Ichihashi K, Furihata R, Murata A, Tsuboi T, Takeshima M, Kyou Y, Komatsu H, Kubota C, Ochi S, Takaesu Y, Usami M, Nagasawa T, Hishimoto A, Miura K, Matsumoto J, Ohi K, Yamada H, Inada K, Watanabe K, Shimoda K, Hashimoto R. Characteristics of discharge prescriptions for patients with schizophrenia or major depressive disorder: Real-world evidence from the Effectiveness of Guidelines for Dissemination and Education (EGUIDE) psychiatric treatment project. Asian J Psychiatr 2021; 63:102744. [PMID: 34325252 DOI: 10.1016/j.ajp.2021.102744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/25/2021] [Accepted: 06/24/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Monopharmacy with antipsychotics and antidepressants is the first-line treatment for schizophrenia and major depressive disorder (MDD) in most clinical guidelines, while polypharmacy with psychotropic agents in the treatment of schizophrenia is common in clinical practice. There are no detailed data on the prescription patterns for inpatients with mental illness with reliable diagnoses made by treating psychiatrists. METHODS We gathered prescription data at discharge from 2177 patients with schizophrenia and 1238 patients with MDD from October 2016 to March 2018. RESULTS The patients with schizophrenia aged between 60 and 79 were prescribed lower doses of antipsychotics and hypnotics/anxiolytics than those aged between 40 and 59. There were significant differences between the prescription rate of antipsychotics in the patients with schizophrenia and that of antidepressants in the patients with MDD. The frequency of concomitant drugs such as anti-Parkinson drugs, anxiolytics/hypnotics and mood stabilizers in the subjects with schizophrenia prescribed antipsychotic polypharmacy was significantly higher than that with monotherapy. For the patients with schizophrenia, olanzapine, risperidone, aripiprazole, quetiapine, and blonanserin were the five most prescribed antipsychotics. For the patients with MDD, mirtazapine, duloxetine, escitalopram, trazodone and sertraline were the five most prescribed antidepressants. CONCLUSIONS Our results showed the use of high doses of antipsychotics, high percentages of antipsychotic polypharmacy and concurrent use of hypnotics/anxiolytics in patients with schizophrenia. Notably, these data were collected before intensive instruction regarding the guidelines; therefore, we need to assess the change in the prescription pattern post guideline instruction.
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Affiliation(s)
- Naoki Hashimoto
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - Norio Yasui-Furukori
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Tochigi, Japan.
| | - Naomi Hasegawa
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Shuhei Ishikawa
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - Shusuke Numata
- Department of Psychiatry, Graduate School of Biomedical Science, Tokushima University, Tokushima, Japan
| | - Hikaru Hori
- Department of Psychiatry, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Hitoshi Iida
- Department of Psychiatry, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Kayo Ichihashi
- Department of Neuropsychiatry, University of Tokyo Hospital, Tokyo, Japan
| | | | - Atsunobu Murata
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takashi Tsuboi
- Department of Neuropsychiatry, Kyorin University School of Medicine, Mitaka, Japan
| | - Masahiro Takeshima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Yoshitaka Kyou
- Department of Psychiatry, Kitasato University, School of Medicine, Kanagawa, Japan
| | - Hiroshi Komatsu
- Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
| | - Chika Kubota
- National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Shinichiro Ochi
- Department of Neuropsychiatry, Molecules and Function, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - Yoshikazu Takaesu
- Department of Neuropsychiatry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Masahide Usami
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan
| | - Tatsuya Nagasawa
- Department of NeuroPsychiatry Kanazawa Medical University, Ishikawa, Japan
| | - Akitoyo Hishimoto
- Department of Psychiatry, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kenichiro Miura
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Junya Matsumoto
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kazutaka Ohi
- Department of Psychiatry and Psychotherapy, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hisashi Yamada
- Department of Neuropsychiatry, Hyogo College of Medicine, Hyogo, Japan
| | - Ken Inada
- Department of Psychiatry, Tokyo Women's Medical University, Tokyo, Japan
| | - Koichiro Watanabe
- Department of Neuropsychiatry, Kyorin University School of Medicine, Mitaka, Japan
| | - Kazutaka Shimoda
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Ryota Hashimoto
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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14
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Factors associated with successful antipsychotic dose reduction in schizophrenia: a systematic review of prospective clinical trials and meta-analysis of randomized controlled trials. Neuropsychopharmacology 2020; 45:887-901. [PMID: 31770770 PMCID: PMC7075912 DOI: 10.1038/s41386-019-0573-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/19/2019] [Accepted: 11/12/2019] [Indexed: 02/08/2023]
Abstract
This systematic review and meta-analysis examined predictors of successful antipsychotic dose reduction in schizophrenia. Prospective clinical trials and randomized controlled trials (RCTs) investigating antipsychotic dose reduction in schizophrenia were selected for systematic review and meta-analysis, respectively. In total, 37 trials were identified. Only 8 studies focused on second-generation antipsychotics (SGAs); no studies investigated long-acting injectable SGAs. Of 24 studies evaluating relapse or symptom changes, 20 (83.3%) met the criteria for successful dose reduction. Factors associated with successful dose reduction were study duration < 1 year, age > 40 years, duration of illness > 10 years, and post-reduction chlorpromazine equivalent (CPZE) dose > 200 mg/day. Clinical deterioration was mostly re-stabilized by increasing the dose to the baseline level (N = 7/8, 87.5%). A meta-analysis of 18 RCTs revealed that relapse rate was significantly higher in the reduction group than the maintenance group (risk ratio [RR] = 1.96; 95% confidence interval [CI], 1.23-3.12), whereas neurocognition was significantly improved (standardized mean difference = 0.69; 95% CI, 0.25-1.12). A subgroup analysis indicated that only a post-reduction CPZE dose ≤ 200 mg/day was associated with an increased risk of relapse (RR = 2.79; 95% CI, 1.29-6.03). Thus, when reducing antipsychotic doses, clinicians should consider the long-term risk of relapse in younger patients with a relatively short illness duration and keep the final doses higher than CPZE 200 mg/day. Further studies, particularly those involving SGAs, are warranted to determine the optimal strategies for successful antipsychotic dose reduction in schizophrenia.
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15
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Model-Guided Antipsychotic Dose Reduction in Schizophrenia: A Pilot, Single-Blind Randomized Controlled Trial. J Clin Psychopharmacol 2020; 39:329-335. [PMID: 31188232 DOI: 10.1097/jcp.0000000000001046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE/BACKGROUND Patients with schizophrenia as well as their psychiatrists are hesitant to reduce the antipsychotic dose in fear of relapse. To overcome such dilemmas, we developed models to individually calculate an oral dose that corresponds to a given target dopamine D2 receptor occupancy. METHODS/PROCEDURES In this pilot, 52-week single-blind randomized controlled trial, 35 clinically stable patients with schizophrenia receiving either risperidone or olanzapine monotherapy were randomly assigned to dose reduction (n = 17) or dose maintenance group (n = 18). In the former group, baseline doses were reduced to the doses corresponding to 65% D2 occupancy (the lower end of therapeutic window) at trough that were calculated from randomly collected plasma concentrations using our models. FINDINGS/RESULTS In the dose reduction group, doses of risperidone and olanzapine were decreased from 4.2 ± 1.9 to 1.4 ± 0.4 and 12.8 ± 3.9 to 6.7 ± 1.8 mg/d, whereas the doses in the dose maintenance group were 4.3 ± 1.9 and 15.8 ± 4.6 mg/d, respectively. Twelve subjects (70.5%) and 13 subjects (72.2%) in the dose reduction and dose maintenance groups completed the study (P = 0.604), whereas 3 subjects (18.8%) and none dropped out because of clinical worsening in the dose reduction and dose maintenance groups, respectively. There were not significant differences in score changes in Positive and Negative Syndrome Scale between the 2 groups but in Positive subscale scores in the Clinical Global Impression-Schizophrenia (0.4 ± 0.7 in the dose reduction group vs -0.1 ± 0.7 in the dose maintenance group, P = 0.029). IMPLICATIONS/CONCLUSIONS Although our model-guided dose reduction strategy was found to be comparable with no-dose change in terms of dropout rates, safety issues have to be further examined.
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16
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Sekhar GN, Fleckney AL, Boyanova ST, Rupawala H, Lo R, Wang H, Farag DB, Rahman KM, Broadstock M, Reeves S, Thomas SA. Region-specific blood-brain barrier transporter changes leads to increased sensitivity to amisulpride in Alzheimer's disease. Fluids Barriers CNS 2019; 16:38. [PMID: 31842924 PMCID: PMC6915870 DOI: 10.1186/s12987-019-0158-1] [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] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 12/02/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Research into amisulpride use in Alzheimer's disease (AD) implicates blood-brain barrier (BBB) dysfunction in antipsychotic sensitivity. Research into BBB transporters has been mainly directed towards the ABC superfamily, however, solute carrier (SLC) function in AD has not been widely studied. This study tests the hypothesis that transporters for organic cations contribute to the BBB delivery of the antipsychotics (amisulpride and haloperidol) and is disrupted in AD. METHODS The accumulation of [3H]amisulpride (3.7-7.7 nM) and [3H]haloperidol (10 nM) in human (hCMEC/D3) and mouse (bEnd.3) brain endothelial cell lines was explored. Computational approaches examined molecular level interactions of both drugs with the SLC transporters [organic cation transporter 1 (OCT1), plasma membrane monoamine transporter (PMAT) and multi-drug and toxic compound extrusion proteins (MATE1)] and amisulpride with the ABC transporter (P-glycoprotein). The distribution of [3H]amisulpride in wildtype and 3×transgenic AD mice was examined using in situ brain perfusion experiments. Western blots determined transporter expression in mouse and human brain capillaries . RESULTS In vitro BBB and in silico transporter studies indicated that [3H]amisulpride and [3H]haloperidol were transported by the influx transporter, OCT1, and efflux transporters MATE1 and PMAT. Amisulpride did not have a strong interaction with OCTN1, OCTN2, P-gp, BCRP or MRP and could not be described as a substrate for these transporters. Amisulpride brain uptake was increased in AD mice compared to wildtype mice, but vascular space was unaffected. There were no measurable changes in the expression of MATE1, MATE2, PMAT OCT1, OCT2, OCT3, OCTN1, OCTN2 and P-gp in capillaries isolated from whole brain homogenates from the AD mice compared to wildtype mice. Although, PMAT and MATE1 expression was reduced in capillaries obtained from specific human brain regions (i.e. putamen and caudate) from AD cases (Braak stage V-VI) compared to age matched controls (Braak stage 0-II). CONCLUSIONS Together our research indicates that the increased sensitivity of individuals with Alzheimer's to amisulpride is related to previously unreported changes in function and expression of SLC transporters at the BBB (in particular PMAT and MATE1). Dose adjustments may be required for drugs that are substrates of these transporters when prescribing for individuals with AD.
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Affiliation(s)
- Gayathri Nair Sekhar
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Alice L Fleckney
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Sevda Tomova Boyanova
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Huzefa Rupawala
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Rachel Lo
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Hao Wang
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Doaa B Farag
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
- Faculty of Pharmacy, Misr International University, Cairo, 11431, Egypt
| | - Khondaker Miraz Rahman
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK
| | - Martin Broadstock
- Wolfson Centre for Age-Related Diseases, King's College London, Guy's Campus, London, SE1 1UL, UK
- Maurice Wohl Clinical Neuroscience Institute, King's College London, 125 Coldharbour Lane, Camberwell, London, SE5 9N, UK
| | - Suzanne Reeves
- Division of Psychiatry, Faculty of Brain Sciences, University College London, 149 Tottenham Court Road, London, W1T 7NF, UK
| | - Sarah Ann Thomas
- Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, Waterloo, London, SE1 9NH, UK.
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17
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Dong M, Zeng LN, Zhang Q, Yang SY, Chen LY, Sim K, He YL, Chiu HFK, Sartorius N, Tan CH, Chong MY, Shinfuku N, Lin SK, Ng CH, Ungvari GS, Xiang YT. Antipsychotic Polypharmacy in Older Adult Asian Patients With Schizophrenia: Research on Asian Psychotropic Prescription Pattern. J Geriatr Psychiatry Neurol 2019; 32:304-311. [PMID: 31480982 DOI: 10.1177/0891988719862636] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Antipsychotic polypharmacy (APP) is a controversial topic in the treatment of older adults with schizophrenia. The objective of this study was to examine the use of APP in older adult Asian patients with schizophrenia and its associated demographic and clinical factors. METHODS This study was based on the fourth survey of the consortium known as the Research on Asian Psychotropic Prescription Pattern for Antipsychotics. Fifteen Asian countries/territories participated in this survey, including Bangladesh, Mainland China, Hong Kong, India, Indonesia, Japan, Korea, Malaysia, Myanmar, Pakistan, Singapore, Sri Lanka, Taiwan, Thailand, and Vietnam. Basic demographic and clinical characteristics were collected using a standardized data collection form. RESULTS Among the 879 older adults with schizophrenia included in the survey, the rate of APP was 40.5%. Multiple logistic regression analysis revealed that higher antipsychotic doses (P < .001, odds ratio [OR] = 1.003, 95% confidence interval [CI]: 1.002-1.003), longer duration of illness (P = .02, OR = 1.845, 95% CI: 1.087-3.132), and the prescription of anticholinergics (P < .001, OR = 1.871, 95% CI: 1.329-2.635), second-generation antipsychotics (P = .001, OR = 2.264, 95% CI: 1.453-3.529), and first-generation antipsychotics (P < .001, OR = 3.344, 95% CI: 2.307-4.847) were significantly associated with APP. CONCLUSION Antipsychotic polypharmacy was common in older adult Asian patients with schizophrenia. Compared to the results of previous surveys, the use of APP showed a declining trend over time. Considering the general poor health status of older patients with schizophrenia and their increased risk of drug-induced adverse events, the use of APP in this population needs careful consideration.
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Affiliation(s)
- Min Dong
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China
| | - Liang-Nan Zeng
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China.,2 Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Sichuan Sheng, China
| | - Qinge Zhang
- 3 School of Mental Health, The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Shu-Yu Yang
- 4 Department of Pharmacy, Taipei City Hospital, Taipei, Taiwan
| | - Lian-Yu Chen
- 5 Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan
| | - Kang Sim
- 6 Institute of Mental Health, Buangkok Green Medical Park, Singapore
| | - Yan-Ling He
- 7 Department of Psychiatric Epidemiology, Shanghai Mental Health Center, Shanghai, China
| | - Helen Fung-Kum Chiu
- 8 Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Norman Sartorius
- 9 Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
| | - Chay-Hoon Tan
- 10 Department of Pharmacology, National University of Singapore, Singapore
| | - Mian-Yoon Chong
- 11 Chiayi Chang Gung Memorial Hospital and School of Medicine, Chang Gung University, Chiayi, Taiwan
| | - Naotaka Shinfuku
- 12 International Center for Medical Research, Kobe University School of Medicine, Kobe, Japan
| | - Shih-Ku Lin
- 13 Department of Psychiatry, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chee H Ng
- 14 Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Gabor S Ungvari
- 15 University of Notre Dame Australia, Fremantle, Australia.,16 Division of Psychiatry, School of Medicine, University of Western Australia, Perth, Australia
| | - Yu-Tao Xiang
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China
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18
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Dong M, Zeng LN, Zhang Q, Ungvari GS, Ng CH, Chiu HFK, Si TM, Sim K, Avasthi A, Grover S, Chong MY, Chee KY, Kanba S, Lee MS, Yang SY, Udomratn P, Kallivayalil RA, Tanra AJ, Maramis MM, Shen WW, Sartorius N, Mahendran R, Tan CH, Shinfuku N, Xiang YT. Concurrent antipsychotic use in older adults treated with antidepressants in Asia. Psychogeriatrics 2019; 19:333-339. [PMID: 30734411 DOI: 10.1111/psyg.12416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/15/2018] [Accepted: 12/24/2018] [Indexed: 12/23/2022]
Abstract
AIM Depressive disorders are common in old age. Antipsychotics (APs) are often used as an adjunctive treatment with antidepressants (ADs) in this population but its patterns of use in Asia are not known. This study explored the rate of combination of APs and ADs in older adult psychiatric patients in Asia. METHODS This is a secondary analysis of the database of a multicentre study which recorded participants' basic demographical and clinical data in standardised format in 10 Asian countries and territories. The data were analysed using univariate and multivariate logistic regression analyses. RESULTS A total of 955 older adult psychiatric in- and outpatients were included in this study. The proportion of concurrent AP and AD use was 32.0%, ranging from 23.3% in Korea to 44.0% in Taiwan. Multivariate logistic regression analysis found that younger age, inpatient status and diagnosis of schizophrenia, anxiety and other mental disorders were significantly related to a higher proportion of concurrent use of APs and ADs. CONCLUSION Around a third of older adult psychiatric patients had concurrent AP and AD use in the Asian countries/regions surveyed. Considering the uncertain effectiveness and questionable safety of the AP and AD combination in this patient population, such should be cautiously used.
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Affiliation(s)
- Min Dong
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Liang-Nan Zeng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Qinge Zhang
- The National Clinical Research Center for Mental Disorders, China & Center of Depression, Beijing Institute for Brain Disorders & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Gabor S Ungvari
- University of Notre Dame Australia, Fremantle, Australia.,Division of Psychiatry, School Medicine, University of Western Australia, Perth, Australia
| | - Chee H Ng
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Helen F K Chiu
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong, China
| | - Tian-Mei Si
- Peking University Institute of Mental Health (the sixth Hospital) & National Clinical Research Center for Mental Disorders & the key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing, China
| | - Kang Sim
- Institute of Mental Health, Singapore, Singapore
| | - Ajit Avasthi
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Sandeep Grover
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Mian-Yoon Chong
- Department of Psychiatry, Chang Gung Memorial Hospital, Chiayi & Chang Gung University, Taoyuan, Taiwan
| | - Kok-Yoon Chee
- Department of Psychiatry & Mental Health, Tunku Abdul Rahman Institute of Neurosciences, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - Shigenobu Kanba
- Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan
| | - Min-Soo Lee
- Department of Psychiatry, College of Medicine, Korea University, Seoul, Korea
| | - Shu-Yu Yang
- Department of Pharmacy, Songde Branch, Taipei City Hospital, & College of Medicine, Fu Jen Catholic University, Taipei, Taiwan
| | - Pichet Udomratn
- Department of Psychiatry, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Roy A Kallivayalil
- Department of Psychiatry, Pushpagiri Institute of Medical Sciences, Thiruvalla, India
| | - Andi J Tanra
- Department of Psychiatry, Hasanuddin University Faculty of Medicine, Makassar, Indonesia
| | - Margarita M Maramis
- Dr. Soetomo Hospital - Faculty of Medicine, Airlangga University, Surabaya, Jawa Timur, Indonesia
| | - Winston W Shen
- Departments of Psychiatry, TMU-Wan Fang Medical Center and School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Norman Sartorius
- Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
| | - Rathi Mahendran
- Department of Psychological Medicine, National University of Singapore, Singapore, Singapore
| | - Chay-Hoon Tan
- Department of Pharmacology, National University of Singapore, Singapore, Singapore
| | - Naotaka Shinfuku
- International Center for Medical Research, Kobe University School of Medicine, Kobe, Japan
| | - Yu-Tao Xiang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
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Ozzoude M, Nakajima S, Plitman E, Chung JK, Kim J, Iwata Y, Caravaggio F, Takeuchi H, Uchida H, Graff-Guerrero A, Gerretsen P. The effects of illness severity, cognition, and estimated antipsychotic dopamine receptor occupancy on insight into the illness in schizophrenia: An analysis of clinical antipsychotic trials of intervention effectiveness (CATIE) data. Prog Neuropsychopharmacol Biol Psychiatry 2019; 89:207-213. [PMID: 30172739 DOI: 10.1016/j.pnpbp.2018.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 08/19/2018] [Accepted: 08/29/2018] [Indexed: 01/19/2023]
Abstract
BACKGROUND The relationship between dopamine D2 receptor (D2R) occupancy and impaired illness awareness (IIA) remains unclear. While IIA is associated with illness severity and cognitive dysfunction, antipsychotic medication, the principal treatment for schizophrenia, indirectly improves IIA, but may simultaneously contribute to cognitive dysfunction at supratherapeutic doses. AIM AND METHODS We investigated the influence of estimated D2R (Est.D2R) occupancy by antipsychotics on the relationships between IIA and illness severity, and IIA and cognition. IIA was assessed in 373 adult patients with schizophrenia (18-62 years) using data from CATIE. IIA was measured using the Positive and Negative Syndrome Scale (PANSS) item G12. D2R occupancy levels were estimated from plasma concentrations for risperidone, olanzapine, and ziprasidone. Correlation, regression, and path analyses were performed to examine IIA's relationship to illness severity, cognition, and Est.D2R. RESULTS Illness severity was predictive of IIA. However, premorbid IQ, cognition, and Est.D2R did not predict IIA, and Est.D2R did not serve either a moderating or mediating role in both regression and path analyses. CONCLUSIONS Consistent with previous literature, our results suggest that IIA is a function of illness severity in adult patients with schizophrenia. Future studies should explore whether D2R occupancy mediates the relationships between IIA and illness severity, and IIA and cognitive dysfunction, in late-life schizophrenia (i.e. ≥60 years) given the effects of aging on cognition, IIA, and antipsychotic sensitivity.
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Affiliation(s)
- Miracle Ozzoude
- University of Toronto, Toronto, Ontario, Canada; Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Shinichiro Nakajima
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Eric Plitman
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Jun Ku Chung
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Julia Kim
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Yusuke Iwata
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Ontario, Canada
| | - Fernando Caravaggio
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Hiroyoshi Takeuchi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Geriatric Mental Health Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Ariel Graff-Guerrero
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada; Geriatric Mental Health Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Ontario, Canada
| | - Philip Gerretsen
- Multimodal Imaging Group, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Ontario, Canada; Geriatric Mental Health Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Ontario, Canada.
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Age Impacts Olanzapine Exposure Differently During Use of Oral Versus Long-Acting Injectable Formulations: An Observational Study Including 8,288 Patients. J Clin Psychopharmacol 2018; 38:570-576. [PMID: 30300295 DOI: 10.1097/jcp.0000000000000961] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Olanzapine is a commonly prescribed antipsychotic available as oral and long-acting injectable (LAI) formulations. Data are lacking on the use and safety of olanzapine-LAI in older patients. The aim of this study was to investigate the effect of increasing age on olanzapine exposure during oral versus LAI administration in a real-life setting. METHODS This observational study was based on routine therapeutic drug monitoring data collected during 2005-2017. As a measure of exposure, absolute concentrations and concentration/dose ratios of olanzapine were defined as outcome variables. Linear mixed-model analyzes were used to allow for inclusion of multiple samples per patient and adjustment for covariate effects. RESULTS Olanzapine concentrations and doses from 8,288 patients (21,378 measurements) were included. The number of patients on oral treatment was 7,893 (42%, 50 years or older), while 395 were using olanzapine-LAI (27%, 50 years or older). In contrast to oral use, where the dose-adjusted concentration of olanzapine increased significantly for patients 50 years or older (P < 0.001), increasing age had no effect on olanzapine concentration following LAI administration (P = 0.550). The effects of smoking habits and gender were equal in oral and olanzapine-LAI users. CONCLUSION While the dose-adjusted systemic exposure of olanzapine increases by age after oral administration, these novel findings from a large patient population show that systemic exposure of olanzapine-LAI is unaffected by age, probably due to the lacking influence of age-related changes in gastrointestinal absorption and/or presystemic metabolism. From a pharmacokinetic point of view, it is therefore no reason to restrict the use of olanzapine-LAI in older patients requiring long-term treatment.
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Clinical Characteristics of Patients With Schizophrenia Who Successfully Discontinued Antipsychotics: A Literature Review. J Clin Psychopharmacol 2018; 38:582-589. [PMID: 30300291 DOI: 10.1097/jcp.0000000000000959] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE/BACKGROUND Although discontinuing antipsychotics clearly increases the risk of relapse in schizophrenia, some patients remain clinically well without continuous antipsychotic treatment. However, data on the characteristics of such patients are still scarce. METHODS/PROCEDURES A systematic literature review was conducted to identify predictive factors for successful antipsychotic discontinuation in schizophrenia using PubMed (last search; June 2018) with the following search terms: (antipsychotic* or neuroleptic) AND (withdraw* or cessat* or terminat* or discontinu*) AND (schizophreni* or psychosis). The search was filtered with humans and English. Factors associated with a lower risk of relapse, when replicated in 2 or more studies with a follow-up period of 3 months or longer, were considered successful. FINDINGS/RESULTS Systematic literature search identified 37 relevant articles. Mean relapse rate after antipsychotic discontinuation was 38.3% (95% confidence interval = 16.0%-60.6%) per year. Factors associated with a lower risk of relapse were being maintained on a lower antipsychotic dose before discontinuation, older age, shorter duration of untreated psychosis, older age at the onset of illness, a lower severity of positive symptoms at baseline, better social functioning, and a lower number of previous relapses. IMPLICATIONS/CONCLUSIONS Although this literature review suggests some predictors for successful antipsychotic withdrawal in patients with schizophrenia, the very limited evidence base and unequivocally high relapse rates after discontinuation must remain a matter of serious debate for risk/benefit considerations.
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Lange-Asschenfeldt C. [Psychiatric pharmacotherapy of older individuals with severe mental illness]. Z Gerontol Geriatr 2018; 51:770-778. [PMID: 30302537 DOI: 10.1007/s00391-018-1455-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 09/12/2018] [Accepted: 09/18/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Chronic schizophrenia, depression, and bipolar disorders, among other chronic psychiatric disorders with onset at youth or early adulthood are often referred to as severe mental illness (SMI). Aging with SMI is associated with various psychosocial, physiological, and medical problems with potential impact on psychiatric pharmacotherapy. OBJECTIVES Determination and discussion of problems and special features of the psychopharmacological treatment of older persons with SMI and presentation of treatment recommendations for the distinct diagnoses. MATERIALS AND METHODS International literature and guidelines were searched. In addition, the basic literature and expert opinions are discussed. RESULTS General problems that influence the psychiatric pharmacotherapy of older persons with SMI include nonadherence, nonresponse, polypharmacy, and distinct pharmacokinetic changes with aging and somatic comorbidity. Psychotropic drugs may exhibit cardiovascular, metabolic, and neuropsychiatric risks, among others. The literature regarding effectiveness of psychotropic drugs, drug groups, or combination of drugs in older patients with SMI is scarce to nonexistent. CONCLUSIONS Drug treatment of older persons with SMI should be part of an overall treatment plan that also has to include social and psychotherapeutic components that address the specific problems of this population. Most importantly, psychiatric pharmacotherapy should consider these risks and the treatment should be tailored to a patient's individual risk profile. Due to a general lack of evidence in this special population, treatment strategies of standard guidelines should be adjusted with special consideration to physiological changes of age.
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Affiliation(s)
- Christian Lange-Asschenfeldt
- Abteilung Gerontopsychiatrie, Klinik und Poliklinik für Psychiatrie und Psychotherapie, LVR-Klinikum, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf, Bergische Landstr. 2, 40629, Düsseldorf, Deutschland.
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Iversen TSJ, Steen NE, Dieset I, Hope S, Mørch R, Gardsjord ES, Jørgensen KN, Melle I, Andreassen OA, Molden E, Jönsson EG. Side effect burden of antipsychotic drugs in real life - Impact of gender and polypharmacy. Prog Neuropsychopharmacol Biol Psychiatry 2018; 82:263-271. [PMID: 29122637 DOI: 10.1016/j.pnpbp.2017.11.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 01/11/2023]
Abstract
BACKGROUND Antipsychotic-associated side effects are well known and represent a significant treatment challenge. Still, few large studies have investigated the overall side effect burden of antipsychotics in real-life settings. OBJECTIVE To describe the occurrence of side effects and perceived burden of antipsychotics in a large naturalistic sample, taking polypharmacy and patient characteristics into account. METHOD Patients (n=1087) with psychotic disorders were assessed for side effects using the Udvalg for Kliniske Undersøgelser (UKU) side effect rating scale in addition to assessment of clinical and pharmacological data. Statistical analyses were performed controlling for possible confounding factors. RESULTS Use of antipsychotics showed significant associations to neurologic and sexual symptoms, sedation and weight gain, and >75% of antipsychotics-users reported side effects. More side effects were observed in patients using several antipsychotics (p=0.002), with increasing total dose (p=0.021) and with antipsychotics in combinations with other psychotropic drugs. Patients and investigators evaluated the side effect burden differently, particularly related to severity, gender and antipsychotics dose. Twice as many females described side effect burden as severe (p=0.004). CONCLUSION Patients with psychotic disorders have a high occurrence of symptoms associated with use of antipsychotics, and polypharmacy and female gender are seemingly risk factors for reporting a severe side effect burden. Due to the cross-sectional design evaluation of causality is tentative, and these findings should be further investigated in prospective studies.
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Affiliation(s)
- Trude Seselie Jahr Iversen
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway.
| | - Nils Eiel Steen
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway; Drammen District Psychiatric Center, Clinic of Mental Health and Addiction, Vestre Viken Hospital Trust, Drammen, Norway
| | - Ingrid Dieset
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Sigrun Hope
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway; Department of Neurohabilitation, Oslo University Hospital, Oslo, Norway
| | - Ragni Mørch
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Erlend Strand Gardsjord
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Kjetil Nordbø Jørgensen
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway; Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Ingrid Melle
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Ole A Andreassen
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Espen Molden
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
| | - Erik G Jönsson
- NORMENT K.G. Jebsen Center for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo University Hospital, Oslo, Norway; Department of Clinical Neuroscience, Center for Psychiatric Research, Karolinska Institutet, Stockholm, Sweden
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McClarty BM, Fisher DW, Dong H. Epigenetic Alterations Impact on Antipsychotic Treatment in Elderly Patients. CURRENT TREATMENT OPTIONS IN PSYCHIATRY 2018; 5:17-29. [PMID: 29755923 PMCID: PMC5943049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE OF THE REVIEW Antipsychotics are commonly prescribed for the treatment of psychosis as well as behavioral and psychological symptoms of dementia (BPSD) in elderly patients. However, elderly patients often experience decreased antipsychotic efficacy and increased side effects, though the mechanisms underlying these changes with age are not clear. RECENT FINDINGS Although aging can affect drug metabolism and clearance through changes in renal and hepatic function, additional pharmacokinetic and pharmacodynamic changes due to aging-induced epigenetic alterations also impact processes important for antipsychotic function. Epigenetic mechanisms account for some of the altered efficacy and increased side effects seen in elderly patients. SUMMARY Both clinical and animal studies from our group and others have demonstrated a plausible epigenetic mechanism involving histone modifications that can adversely affect the efficacy of antipsychotics and increase their side effects in elderly patients. Hopefully, further investigation of this mechanism will benefit elderly patients who need treatment for psychosis and BPSD.
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Affiliation(s)
- Bryan M. McClarty
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Daniel W. Fisher
- Department of Neurology, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Hongxin Dong
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
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Reeves S, Eggleston K, Cort E, McLachlan E, Brownings S, Nair A, Greaves S, Smith A, Dunn J, Marsden P, Kessler R, Taylor D, Bertrand J, Howard R. Therapeutic D2/3 receptor occupancies and response with low amisulpride blood concentrations in very late-onset schizophrenia-like psychosis (VLOSLP). Int J Geriatr Psychiatry 2018. [PMID: 28643852 DOI: 10.1002/gps.4758] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Antipsychotic drug sensitivity in very late-onset schizophrenia-like psychosis (VLOSLP) is well documented, but poorly understood. This study aimed to investigate blood drug concentration, D2/3 receptor occupancy and outcome in VLOSLP during open amisulpride prescribing, and compare this with Alzheimer's disease (AD). METHODS Blood drug concentration, prolactin, symptoms and extrapyramidal side-effects (EPS) were serially assessed during dose titration. [18 F]fallypride imaging was used to quantify D2/3 receptor occupancy. Average steady-state amisulpride concentration (Caverage, ng/ml) was estimated by incorporating pharmacokinetic (PK) data into an existing population PK model (25 AD participants, 20 healthy older people). RESULTS Eight patients (target 20) were recruited (six women; 76 + - 6 years; six treatment compliant; five serially sampled; three with paired imaging data). Mean + - SD symptom reduction was 74 ± 12% (50-100 mg/day; 92.5 + -39.4 ng/ml). Mild EPS emerged at 96 ng/ml (in AD, severe EPS, 50 mg/day, 60 ng/ml). In three participants, imaged during optimal treatment (50 mg/day; 41-70 ng/ml), caudate occupancy was 44-59% (58-74% in AD across a comparable Caverage). CONCLUSIONS Despite the small sample size, our findings are highly relevant as they suggest that, as in AD, 50 mg/day amisulpride is associated with >40% occupancy and clinically relevant responses in VLOSLP. It was not possible to fully characterise concentration-occupancy relationships in VLOSLP, and it is thus unclear whether the greater susceptibility of those with AD to emergent EPS was accounted for by increased central drug access. Further investigation of age- and diagnosis-specific threshold sensitivities is warranted, to guide amisulpride prescribing in older people, and therapeutic drug monitoring studies offer a potentially informative future approach. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Suzanne Reeves
- Division of Psychiatry, University College London, UK.,Department of Old Age Psychiatry, Kings College London, UK
| | - Kate Eggleston
- Department of Old Age Psychiatry, Kings College London, UK
| | - Elizabeth Cort
- Department of Old Age Psychiatry, Kings College London, UK
| | - Emma McLachlan
- Department of Old Age Psychiatry, Kings College London, UK
| | | | - Akshay Nair
- Division of Psychiatry, University College London, UK
| | - Suki Greaves
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Alan Smith
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Joel Dunn
- Division of Imaging Sciences, St Thomas Hospital, London, UK
| | - Paul Marsden
- Division of Imaging Sciences, St Thomas Hospital, London, UK
| | | | - David Taylor
- Division of Imaging Sciences, St Thomas Hospital, London, UK
| | - Julie Bertrand
- UMR 1137 IAME INSERM University Paris 7, France and Genetics Institute, University College London, UK
| | - Robert Howard
- Division of Psychiatry, University College London, UK.,Department of Old Age Psychiatry, Kings College London, UK
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Montalvo-Ortiz JL, Fisher DW, Rodriguez G, Fang D, Csernansky JG, Dong H. Histone deacetylase inhibitors reverse age-related increases in side effects of haloperidol in mice. Psychopharmacology (Berl) 2017; 234:2385-2398. [PMID: 28421257 PMCID: PMC5538925 DOI: 10.1007/s00213-017-4629-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Accepted: 04/04/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND Older patients can be especially susceptible to antipsychotic-induced side effects, and the pharmacodynamic mechanism underlying this phenomenon remains unclear. We hypothesized that age-related epigenetic alterations lead to decreased expression and functionality of the dopamine D2 receptor (D2R), contributing to this susceptibility. METHODS In this study, we treated young (2-3 months old) and aged (22-24 months old) C57BL/6 mice with the D2R antagonist haloperidol (HAL) once a day for 14 days to evaluate HAL-induced motor side effects. In addition, we pretreated separate groups of young and aged mice with histone deacetylase (HDAC) inhibitors valproic acid (VPA) or entinostat (MS-275) and then administered HAL. RESULTS Our results show that the motor side effects of HAL are exaggerated in aged mice as compared to young mice and that HDAC inhibitors are able to reverse the severity of these deficits. HAL-induced motor deficits in aged mice are associated with an age- and drug-dependent decrease in striatal D2R protein levels and functionality. Further, histone acetylation was reduced while histone tri-methylation was increased at specific lysine residues of H3 and H4 within the Drd2 promoter in the striatum of aged mice. HDAC inhibitors, particularly VPA, restored striatal D2R protein levels and functionality and reversed age- and drug-related histone modifications at the Drd2 promoter. CONCLUSIONS These results suggest that epigenetic changes at the striatal Drd2 promoter drive age-related increases in antipsychotic side effect susceptibility, and HDAC inhibitors may be an effective adjunct treatment strategy to reduce side effects in aged populations.
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Affiliation(s)
- Janitza L. Montalvo-Ortiz
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Daniel W. Fisher
- Department of Neurology, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Guadalupe Rodriguez
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - John G. Csernansky
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA
| | - Hongxin Dong
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Ward 7-103, Chicago, IL, 60611, USA.
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Li Y, Hou CL, Ma XR, Zhong BL, Zang Y, Jia FJ, Lin YQ, Lai KYC, Chiu HFK, Ungvari GS, Hall BJ, Cai MY, Ng CH, Xiang YT. Quality of life in Chinese patients with schizophrenia treated in primary care. Psychiatry Res 2017; 254:80-84. [PMID: 28456026 DOI: 10.1016/j.psychres.2017.04.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 02/26/2017] [Accepted: 04/23/2017] [Indexed: 11/17/2022]
Abstract
In China, maintenance treatment for clinically stable patients with schizophrenia is usually provided by primary care physicians. This study examined the quality of life (QOL) in patients with schizophrenia treated in primary care and explored the demographic and clinical characteristics associated with QOL. Altogether, 612 patients with schizophrenia treated in 22 randomly selected primary care services in China formed the study sample. QOL, psychotic and depressive symptoms, extra-pyramidal symptoms and insight were assessed using standardized instruments. Data analyses were conducted with the one sample t-test and multiple linear regression analyses. Compared with the normative data for the Chinese general population, significantly lower scores in physical and mental QOL domains were found in the patient group. Older age, being unemployed, major medical conditions, no smoking, more severe depressive and negative symptoms, more frequent insomnia, and suicidality were independently associated with poor physical QOL. Male gender, more severe depressive and anxiety symptoms, more frequent insomnia, and suicidality were independently associated with poor mental QOL. Patients with schizophrenia treated in primary care had lower level of QOL in comparison with general population. Effective measures need to be implemented to improve their QOL.
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Affiliation(s)
- Yan Li
- The National Clinical Research Center for Mental Disorders, China & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University, Beijing, China; Department of Psychiatry, the Chinese University of Hong Kong, Hong Kong SAR, China
| | - Cai-Lan Hou
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangdong Province, China
| | - Xin-Rong Ma
- Ningxia Mental Health Center, Ningxia Ning-An Hospital, Ningxia Province, China
| | - Bao-Liang Zhong
- The Affiliated Mental Health Center, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Yu Zang
- Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health, Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, China
| | - Fu-Jun Jia
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangdong Province, China.
| | - Yong-Qiang Lin
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangdong Province, China
| | - Kelly Y C Lai
- Department of Psychiatry, the Chinese University of Hong Kong, Hong Kong SAR, China
| | - Helen F K Chiu
- Department of Psychiatry, the Chinese University of Hong Kong, Hong Kong SAR, China
| | - Gabor S Ungvari
- The University of Notre Dame Australia/Marian Centre, Perth, Australia; School of Psychiatry & Clinical Neurosciences, University of Western Australia, Perth, Australia
| | - Brian J Hall
- Global and Community Mental Health Research Group, Department of Psychology, University of Macau, Macao SAR, China; Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mei-Ying Cai
- Guangzhou Yuexiu Center for Disease Control and Prevention, Guangdong Province, China
| | - Chee H Ng
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia.
| | - Yu-Tao Xiang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
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Yoshida K, Roberts R, Suzuki T, Lebowitz B, Reeves S, Howard R, Abe T, Mimura M, Uchida H. Lack of Early Improvement with Antipsychotics is a Marker for Subsequent Nonresponse in Behavioral and Psychological Symptoms of Dementia: Analysis of CATIE-AD Data. Am J Geriatr Psychiatry 2017; 25:708-716. [PMID: 28215900 PMCID: PMC5474154 DOI: 10.1016/j.jagp.2017.01.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 01/23/2017] [Accepted: 01/26/2017] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Prediction of response or nonresponse to antipsychotics is especially important in patients with behavioral and psychological symptoms of dementia (BPSD) in whom antipsychotic exposure increases risks of death. This study examined whether the presence or absence of early improvement of BPSD with antipsychotics is associated with subsequent response or nonresponse. METHODS In a post-hoc analysis of the Clinical Antipsychotic Trials of Intervention Effectiveness-Alzheimer's Disease (CATIE-AD) study (2001-2004) (clinicaltrials.gov; NCT00015548) in 45 U.S. sites, 245 subjects (olanzapine, N = 90; quetiapine, N = 81; risperidone, N = 74) with a DSM-IV diagnosis of dementia of the Alzheimer type who presented with a score of 1 or more in the Brief Psychiatric Rating Scale (BPRS) at baseline (phase I of CATIE-AD) were randomly assigned to treatment with olanzapine, quetiapine, risperidone, or placebo in a double-blind manner. Associations were examined between response at week 8 and demographic and clinical characteristics, including BPRS total score reduction at week 2, using logistic regression analyses. Prediction performance of binary classification (presence or absence) of improvement or no improvement at week 2 for response at week 8 was examined. RESULTS BPRS total score reduction at week 2 (mean percentage score reduction: 12.6%) was significantly associated with response at week 8 (odds ratio: 1.18; 95% CI: 1.11-1.26). The 5% score reduction cut-off at week 2 showed the highest accuracy (0.71), with sensitivity, specificity, and positive and negative predictivevalues of 0.76, 0.65, 0.69, and 0.72, respectively. CONCLUSION Lack of even a very small early improvement with antipsychotic treatment may be a marker of subsequent nonresponse in BPSD.
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Affiliation(s)
- Kazunari Yoshida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Rachel Roberts
- Center for Clinical Research, Keio University School of Medicine, Tokyo, Japan
| | - Takefumi Suzuki
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Department of Psychiatry, Inokashira Hospital, Tokyo, Japan
| | - Barry Lebowitz
- Department of Psychiatry, University of California, San Diego, CA
| | - Suzanne Reeves
- Division of Psychiatry, University College London, London, United Kingdom; Department of Old Age Psychiatry, Institute of Psychiatry, King's College London, London, United Kingdom
| | - Robert Howard
- Division of Psychiatry, University College London, London, United Kingdom; Department of Old Age Psychiatry, Institute of Psychiatry, King's College London, London, United Kingdom
| | - Takayuki Abe
- Center for Clinical Research, Keio University School of Medicine, Tokyo, Japan
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
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Representativeness of clinical PET study participants with schizophrenia: A systematic review. J Psychiatr Res 2017; 88:72-79. [PMID: 28088727 DOI: 10.1016/j.jpsychires.2016.12.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 12/25/2016] [Accepted: 12/31/2016] [Indexed: 01/23/2023]
Abstract
While positron emission tomography (PET) studies have provided invaluable data on antipsychotic effects, selection bias remains a serious concern. A systematic review of PET studies that measured dopamine D2 receptor blockade with antipsychotics was conducted to examine their inclusion/exclusion criteria, using PubMed, EMBASE, and ClinicalTrials.gov (last search, September 2016). PET studies were included if they measured D2 receptor occupancy in patients with schizophrenia and included introduction of antipsychotic treatment or antipsychotic regimen change in a systematic manner. Twenty-six studies were identified. Age limit was included in 13 studies; one study solely included geriatric patients while others targeted younger adults. Eleven, 6, and 3 studies specifically targeted clinically stable patients, patients with severe psychopathology, and antipsychotic-free patients, respectively. Nineteen and 18 studies excluded patients with physical comorbidity and substance abuse, respectively. As a result, the mean age of subjects ranged from 23 to 42 years when one study that targeted geriatric patients was excluded. Mean Positive and Negative Syndrome Scale total scores ranged from 54 to 95. No comparison active-drug or placebo arm was employed in 24 studies. Blind assessment of symptomatology was performed in 5 studies. In general, subjects participating in clinical PET studies were relatively young, presented with mild symptomatology, and were free from substance abuse or physical comorbidities. These characteristics need to be taken into account when clinical PET data are interpreted. On the other hand, it should also be noted that this study was only qualitative and conservative interpretation is necessary for possibility of subjective bias.
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Reeves S, McLachlan E, Bertrand J, D'Antonio F, Brownings S, Nair A, Greaves S, Smith A, Taylor D, Dunn J, Marsden P, Kessler R, Howard R. Therapeutic window of dopamine D2/3 receptor occupancy to treat psychosis in Alzheimer's disease. Brain 2017; 140:1117-1127. [PMID: 28334978 DOI: 10.1093/brain/aww359] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/30/2016] [Indexed: 12/31/2022] Open
Abstract
See Caravaggio and Graff-Guerrero (doi:10.1093/awx023) for a scientific commentary on this article.Antipsychotic drugs, originally developed to treat schizophrenia, are used to treat psychosis, agitation and aggression in Alzheimer's disease. In the absence of dopamine D2/3 receptor occupancy data to inform antipsychotic prescribing for psychosis in Alzheimer's disease, the mechanisms underpinning antipsychotic efficacy and side effects are poorly understood. This study used a population approach to investigate the relationship between amisulpride blood concentration and central D2/3 occupancy in older people with Alzheimer's disease by combining: (i) pharmacokinetic data (280 venous samples) from a phase I single (50 mg) dose study in healthy older people (n = 20, 65-79 years); (ii) pharmacokinetic, 18F-fallypride D2/3 receptor imaging and clinical outcome data on patients with Alzheimer's disease who were prescribed amisulpride (25-75 mg daily) to treat psychosis as part of an open study (n = 28; 69-92 years; 41 blood samples, five pretreatment scans, 19 post-treatment scans); and (iii) 18F-fallypride imaging of an antipsychotic free Alzheimer's disease control group (n = 10, 78-92 years), to provide additional pretreatment data. Non-linear mixed effects modelling was used to describe pharmacokinetic-occupancy curves in caudate, putamen and thalamus. Model outputs were used to estimate threshold steady state blood concentration and occupancy required to elicit a clinically relevant response (>25% reduction in scores on delusions, hallucinations and agitation domains of the Neuropsychiatric Inventory) and extrapyramidal side effects (Simpson Angus Scale scores > 3). Average steady state blood levels were low (71 ± 30 ng/ml), and associated with high D2/3 occupancies (65 ± 8%, caudate; 67 ± 11%, thalamus; 52 ± 11%, putamen). Antipsychotic clinical response occurred at a threshold concentration of 20 ng/ml and D2/3 occupancies of 43% (caudate), 25% (putamen), 43% (thalamus). Extrapyramidal side effects (n = 7) emerged at a threshold concentration of 60 ng/ml, and D2/3 occupancies of 61% (caudate), 49% (putamen) and 69% (thalamus). This study has established that, as in schizophrenia, there is a therapeutic window of D2/3 receptor occupancy for optimal treatment of psychosis in Alzheimer's disease. We have also shown that occupancies within and beyond this window are achieved at very low amisulpride doses in Alzheimer's disease due to higher than anticipated occupancies for a given blood drug concentration. Our findings support a central pharmacokinetic contribution to antipsychotic sensitivity in Alzheimer's disease and implicate the blood-brain barrier, which controls central drug access. Whether high D2/3 receptor occupancies are primarily accounted for by age- or disease-specific blood-brain barrier disruption is unclear, and this is an important future area of future investigation, as it has implications beyond antipsychotic prescribing.
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Affiliation(s)
- Suzanne Reeves
- Division of Psychiatry, 149 Tottenham Court Road, London W1T 7NF, University College London, UK.,Department of Old Age Psychiatry, London, SE58AF, Kings College London, UK
| | - Emma McLachlan
- Department of Old Age Psychiatry, London, SE58AF, Kings College London, UK
| | - Julie Bertrand
- UMR 1137 IAME INSERM University Paris 7, France; and Genetics Institute, WC1E6BT, University College London, UK
| | - Fabrizia D'Antonio
- Division of Psychiatry, 149 Tottenham Court Road, London W1T 7NF, University College London, UK.,Department of Old Age Psychiatry, London, SE58AF, Kings College London, UK
| | - Stuart Brownings
- Division of Psychiatry, 149 Tottenham Court Road, London W1T 7NF, University College London, UK
| | - Akshay Nair
- Division of Psychiatry, 149 Tottenham Court Road, London W1T 7NF, University College London, UK
| | - Suki Greaves
- South London and Maudsley NHS Foundation Trust, London, SE58AZ, UK
| | - Alan Smith
- South London and Maudsley NHS Foundation Trust, London, SE58AZ, UK
| | - David Taylor
- South London and Maudsley NHS Foundation Trust, London, SE58AZ, UK
| | - Joel Dunn
- Division of Imaging Sciences, St Thomas Hospital, London, SE17EH, UK
| | - Paul Marsden
- Division of Imaging Sciences, St Thomas Hospital, London, SE17EH, UK
| | | | - Robert Howard
- Division of Psychiatry, 149 Tottenham Court Road, London W1T 7NF, University College London, UK.,Department of Old Age Psychiatry, London, SE58AF, Kings College London, UK
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Takeuchi H, Powell V, Geisler S, DeSanti M, Fervaha G, Agid O, Kane JM, Remington G. Clozapine administration in clinical practice: once-daily versus divided dosing. Acta Psychiatr Scand 2016; 134:234-40. [PMID: 27182769 DOI: 10.1111/acps.12593] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/25/2016] [Indexed: 12/22/2022]
Abstract
OBJECTIVE While it is recommended that clozapine be administered in a divided dosing regimen, it is unclear whether this recommendation is followed in real-world clinical practice. In two large datasets, we examined clozapine dosing frequency and patient characteristics across different dosing regimens. METHOD We conducted a cross-sectional survey, collecting data on patients receiving clozapine in August/September 2015 from the Centre for Addiction and Mental Health (CAMH) in Toronto, Canada, and The Zucker Hillside Hospital (ZHH) in New York, United States. RESULTS Of 676 and 308 patients included in CAMH and ZHH datasets, clozapine was prescribed once daily in 75.1% and 74.4%, even though doses exceeding 200 mg/day were administered in 88.6% and 84.4% of the respective samples. No significant difference was found in the rates of positive symptom remission between once-daily vs. divided dosing (79.7% vs. 80.5%, P = 1.00). Higher clozapine dose and use of anticholinergic medications were significantly associated with divided dosing in both datasets. Older age or male gender was related to divided dosing in CAMH or ZHH dataset respectively. CONCLUSION Despite the product monograph recommendation, clozapine is frequently prescribed once daily in North America. Further studies are needed to compare clinical outcomes between once-daily vs. divided clozapine dosing.
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Affiliation(s)
- H Takeuchi
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - V Powell
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - S Geisler
- Department of Psychiatry, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA
| | - M DeSanti
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - G Fervaha
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - O Agid
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - J M Kane
- Department of Psychiatry, Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA.,Department of Psychiatry, Hofstra Northwell School of Medicine, Hempstead, NY, USA
| | - G Remington
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada.,Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
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Correlates of major medication side effects interfering with daily performance: results from a cross-sectional cohort study of older psychiatric patients. Int Psychogeriatr 2016; 28:331-40. [PMID: 26412479 DOI: 10.1017/s1041610215001544] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Polypharmacy is common among older persons who are also vulnerable to side effects. We aimed to characterize patients who on admission to a geriatric psychiatric hospital had major medication side effects interfering with daily performance. METHODS Cross-sectional cohort study of patients consecutively admitted to a geriatric psychiatric hospital from 2006, 06 December to 2008, 24 October. The UKU side effect rating scale was performed, and patients were divided into those with no/minor side effects versus those with major side effects. Blood levels of 56 psychotropic drugs and 27 safety laboratory tests were measured upon admission. RESULTS Of 206 patients included in the analysis, 70 (34%) had major side effects related to drug treatment. The most frequent side effects were asthenia (31%), reduced salivation (31%), concentration difficulties (28%), memory impairment (24%), and orthostatic dizziness (18%). The significant characteristics predicting major side effects were female gender (OR = 2.4, 95% confidence interval (CI) = 1.1-5.5), main diagnosis of affective disorder (OR = 4.3, 95% CI = 1.5-12.3), unreported use of psychotropic medications (OR = 2.0, 95% CI = 1.0-4.1), a higher number of reported psychotropic medications (OR = 1.7, 95% CI = 1.2-2.3), a higher number of reported medications for somatic disorders (OR = 1.2, 95% CI = 1.1-1.5), and a higher score on the Charlson comorbidity index (OR = 1.2, 95% CI = 1.0-1.4) (r 2 = 0.238, p < 0.001). CONCLUSIONS Clinicians should be especially aware of side effects related to drug treatment in geriatric psychiatric female patients with a high use of psychotropic and other medications and somatic comorbidity. Unreported use of psychotropic medications was also related to the risk for side effects, and clinicians should make an effort to ascertain all medications taken by geriatric psychiatric patients.
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Colle R, Corruble E. La vortioxétine : un nouvel antidépresseur pour traiter les épisodes dépressifs caractérisés. Encephale 2016; 42:48-58. [DOI: 10.1016/j.encep.2015.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
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Collamati A, Martone AM, Poscia A, Brandi V, Celi M, Marzetti E, Cherubini A, Landi F. Anticholinergic drugs and negative outcomes in the older population: from biological plausibility to clinical evidence. Aging Clin Exp Res 2016; 28:25-35. [PMID: 25930085 DOI: 10.1007/s40520-015-0359-7] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 04/01/2015] [Indexed: 11/29/2022]
Abstract
The use of medication with anticholinergic properties is widespread among older subjects. Many drugs of common use such as antispasmodics, bronchodilators, antiarrhythmics, antihistamines, anti-hypertensive drugs, antiparkinson agents, skeletal muscle relaxants, and psychotropic drugs have been demonstrated to have an anticholinergic activity. The most frequent adverse effects are dry mouth, nausea, vomiting, constipation, abdominal pain, urinary retention, blurred vision, tachycardia and neurologic impairment such as confusion, agitation and coma. A growing evidence from experimental studies and clinical observations suggests that drugs with anticholinergic properties can cause physical and mental impairment in the elderly population. However, the morbidity and management issues associated with unwanted anticholinergic activity are underestimated and frequently overlooked. Moreover, their possible relation with specific negative outcome in the elderly population is still not firmly established. The aim of the present review was to evaluate the relationship between the use of drugs with anticholinergic activity and negative outcomes in older persons. We searched PubMed and Cochrane combining the search terms "anticholinergic", "delirium", "cognitive impairment", "falls", "mortality" and "discontinuation". Medicines with anticholinergic properties may increase the risks of functional and cognitive decline, morbidity, institutionalization and mortality in older people. However, such evidences are still not conclusive probably due to possible confounding factors. In particular, more studies are needed to investigate the effects of discontinuation of drug with anticholinergic properties. Overall, minimizing anticholinergic burden should always be encouraged in clinical practice to improve short-term memory, confusion and delirium, quality of life and daily functioning.
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Affiliation(s)
- Agnese Collamati
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy
| | - Anna Maria Martone
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy
| | - Andrea Poscia
- Institute of Public Health, Catholic University of Sacred Heart, Rome, Italy
| | - Vincenzo Brandi
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy
| | - Michela Celi
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy
| | - Emanuele Marzetti
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy
| | | | - Francesco Landi
- Department of Gerontology, Orthopedics and Neuroscience, Catholic University of Sacred Heart, Rome, Italy.
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Nakajima S, Uchida H, Bies RR, Caravaggio F, Suzuki T, Plitman E, Mar W, Gerretsen P, Pollock BG, Mulsant BH, Mamo DC, Graff-Guerrero A. Dopamine D2/3 Receptor Occupancy Following Dose Reduction Is Predictable With Minimal Plasma Antipsychotic Concentrations: An Open-Label Clinical Trial. Schizophr Bull 2016. [PMID: 26221049 PMCID: PMC4681559 DOI: 10.1093/schbul/sbv106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Population pharmacokinetics can predict antipsychotic blood concentrations at a given time point prior to a dosage change. Those predicted blood concentrations could be used to estimate the corresponding dopamine D2/3 receptors (D2/3R) occupancy by antipsychotics based on the tight relationship between blood and brain pharmacokinetics. However, this 2-step prediction has never been tested. METHODS Two blood samples were collected at separate time points from 32 clinically stable outpatients with schizophrenia (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition; mean ± SD age: 60.1 ± 7.3 years) to measure plasma concentrations of olanzapine or risperidone at baseline. Then, subjects underwent a dose reduction of olanzapine or risperidone and completed a [(11)C]-raclopride positron emission tomography scan to measure D2/3R occupancy in the putamen. The plasma concentration at the time of the scan was predicted with the 2 samples based on population pharmacokinetic model, using NONMEM. D2/3R occupancy was then estimated by incorporating the predicted plasma concentration in a hyperbole saturation model. The predicted occupancy was compared to the observed value. RESULTS The mean (95% CI) prediction errors for the prediction of D2/3R occupancy were -1.76% (-5.11 to 1.58) for olanzapine and 0.64% (-6.18 to 7.46) for risperidone. The observed and predicted D2/3R occupancy levels were highly correlated (r = 0.67, P = .001 for olanzapine; r = 0.67, P = .02 for risperidone). CONCLUSIONS D2/3R occupancy levels can be predicted from blood drug concentrations collected prior to dosage change. Although this 2-step model is subject to a small degree of error, it could be used to select oral doses aimed at achieving optimal D2/3R occupancy on an individual basis.
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Affiliation(s)
| | - Hiroyuki Uchida
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan;
| | - Robert R. Bies
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada;,Indiana University School of Medicine, Division of Clinical Pharmacology, Indianapolis, IN
| | - Fernando Caravaggio
- Multimodal Imaging Group - Research Imaging Centre and,Department of Psychiatry, University of Toronto, Toronto, Canada;,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - Takefumi Suzuki
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Eric Plitman
- Multimodal Imaging Group - Research Imaging Centre and,Department of Psychiatry, University of Toronto, Toronto, Canada;,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - Wanna Mar
- Multimodal Imaging Group - Research Imaging Centre and
| | - Philip Gerretsen
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Bruce G. Pollock
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada;,Department of Psychiatry, University of Toronto, Toronto, Canada;,Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Benoit H. Mulsant
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada;,Department of Psychiatry, University of Toronto, Toronto, Canada;,Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - David C. Mamo
- Department of Psychiatry, University of Toronto, Toronto, Canada
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Reeves S, Bertrand J, D’Antonio F, McLachlan E, Nair A, Brownings S, Greaves S, Smith A, Taylor D, Howard R. A population approach to characterise amisulpride pharmacokinetics in older people and Alzheimer's disease. Psychopharmacology (Berl) 2016; 233:3371-81. [PMID: 27481049 PMCID: PMC4989015 DOI: 10.1007/s00213-016-4379-6] [Citation(s) in RCA: 12] [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: 04/14/2016] [Accepted: 06/30/2016] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Current prescribing guidelines for the antipsychotic amisulpride are based largely on pharmacokinetic (PK) studies in young adults, and there is a relative absence of data on older patients, who are at greatest risk of developing adverse events. METHODS This study aimed to develop a population PK model for amisulpride specifically in older people, by combining data from a richly sampled phase 1, single (50 mg) dose study in healthy older people (n = 20, 65-79 years), with a clinical dataset obtained during off label, low-dose (25-75 mg daily) amisulpride prescribing in older people with Alzheimer's disease (AD) (n = 25, 69-92 years), as part of an observational study. RESULTS After introducing a scaling factor based on body weight, age accounted for 20 % of the inter-individual variability in drug clearance (CL), resulting in a 54 % difference in CL between those aged 65 and those aged 85 years, and higher blood concentrations in older patients. DISCUSSION These findings argue for the consideration of age and weight-based dose stratification to optimise amisulpride prescribing in older people, particularly in those aged 85 years and above.
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Affiliation(s)
- Suzanne Reeves
- Division of Psychiatry, University College London, London, W1T7NF, UK. .,Department of Old Age Psychiatry, Kings College London, London, UK.
| | - Julie Bertrand
- UMR 1137 IAME INSERM University Paris 7, France and Genetics Institute, University College London, London, UK
| | - Fabrizia D’Antonio
- Division of Psychiatry, University College London, London, W1T7NF UK ,Department of Old Age Psychiatry, Kings College London, London, UK
| | - Emma McLachlan
- Department of Old Age Psychiatry, Kings College London, London, UK
| | - Akshay Nair
- Division of Psychiatry, University College London, London, W1T7NF UK
| | - Stuart Brownings
- Department of Old Age Psychiatry, Kings College London, London, UK
| | - Suki Greaves
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Alan Smith
- South London and Maudsley NHS Foundation Trust, London, UK
| | - David Taylor
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Robert Howard
- Division of Psychiatry, University College London, London, W1T7NF UK ,Department of Old Age Psychiatry, Kings College London, London, UK
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Takeuchi H, Remington G. Improving symptoms and side effects in older patients with schizophrenia with decreasing dopamine D2/3 receptor occupancy following risperidone and olanzapine dose reduction. EVIDENCE-BASED MENTAL HEALTH 2015; 18:117. [PMID: 26459470 PMCID: PMC11234575 DOI: 10.1136/eb-2015-102209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 08/24/2015] [Accepted: 09/22/2015] [Indexed: 11/03/2022]
Affiliation(s)
- Hiroyoshi Takeuchi
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Gary Remington
- Schizophrenia Division, Complex Mental Illness Program, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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Tsuboi T, Suzuki T, Bies RR, Remington G, Pollock BG, Mimura M, Uchida H. Challenging the need for sustained blockade of dopamine D₂ receptor estimated from antipsychotic plasma levels in the maintenance treatment of schizophrenia: A single-blind, randomized, controlled study. Schizophr Res 2015; 164:149-54. [PMID: 25864950 DOI: 10.1016/j.schres.2015.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 02/27/2015] [Accepted: 03/22/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Blockade of dopamine D₂ receptors with antipsychotics above 65% is associated with optimal chance of clinical response although recent data suggest a lower threshold for the maintenance treatment of schizophrenia. The objective of this study was to prospectively examine whether such continuous high blockade would be necessary for maintenance treatment. METHOD In this single-blind, 52-week, randomized controlled trial, clinically stable patients with schizophrenia receiving risperidone or olanzapine were randomly assigned to the continuous D₂ blockade (i.e. an estimated trough D2 blockade of >65%) or non-continuous blockade group (i.e. an estimated peak level of >65% with an estimated trough level of <65%). Oral doses corresponding to the assigned blockade levels were estimated from random plasma drug concentrations, using the models we developed; antipsychotic doses were then adjusted accordingly. Psychopathology and side effects were assessed at baseline and one year with the Positive and Negative Syndrome Scale (PANSS), Simpson-Angus Scale (SAS), and Abnormal Involuntary Movement Scale (AIMS). RESULTS Sixty-eight subjects (34 in each group) were enrolled. Twenty-six (76.5%) and thirty-one (91.2%) subjects completed the study in the continuous and non-continuous blockade groups, respectively, without any significant group difference. No significant differences were found on any of the assessment scales between the two groups. The degree of dosage change was small in both groups. CONCLUSION These results offer support that the threshold for D₂ receptor blockade in the maintenance treatment can be lower than 65%. However, these preliminary findings have to be confirmed through double-blind, larger scale trials with longer follow-up periods.
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Affiliation(s)
- Takashi Tsuboi
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Takefumi Suzuki
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Department of Psychiatry, Inokashira Hospital, Tokyo, Japan
| | - Robert R Bies
- Division of Clinical Pharmacology, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Clinical and Translational Sciences Institute, Indianapolis, IN, USA; Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Gary Remington
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Schizophrenia Division, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Bruce G Pollock
- Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, ON, Canada.
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Nakajima S, Caravaggio F, Mamo DC, Mulsant BH, Chung JK, Plitman E, Iwata Y, Gerretsen P, Uchida H, Suzuki T, Mar W, Wilson AA, Houle S, Graff-Guerrero A. Dopamine D₂/₃ receptor availability in the striatum of antipsychotic-free older patients with schizophrenia-A [¹¹C]-raclopride PET study. Schizophr Res 2015; 164:263-7. [PMID: 25757713 PMCID: PMC4409531 DOI: 10.1016/j.schres.2015.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 02/21/2015] [Accepted: 02/22/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND No study has examined dopamine D₂/₃ receptor (D₂/₃R) availability in antipsychotic-free older patients with schizophrenia. METHODS We included patients with schizophrenia 50 years or older who were antipsychotic-free for at least 3 months. We compared non-displaceable binding potential (BPND) of [(11)C]-raclopride in the caudate, putamen, ventral striatum, and globus pallidus between patients and age- and sex-matched healthy controls. RESULTS Ten patients participated (antipsychotic-naive=4). No differences in BPND were found between patients and controls in any ROIs (F(1, 72)=.42, p=.52). CONCLUSION The preliminary results suggest no differences in D₂/₃R availability between antipsychotic-free older patients with schizophrenia and controls.
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Affiliation(s)
- Shinichiro Nakajima
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
| | - Fernando Caravaggio
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada.
| | - David C. Mamo
- Department of Psychiatry, Faculties of Medicine and Health Science, University of Malta, Msida, Malta
| | - Benoit H. Mulsant
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada,Department of Psychiatry, University of Toronto, Toronto, Canada,Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Jun Ku Chung
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada.
| | - Eric Plitman
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada.
| | - Yusuke Iwata
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
| | - Philip Gerretsen
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada.
| | - Hiroyuki Uchida
- Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
| | - Takefumi Suzuki
- Department of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
| | - Wanna Mar
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada.
| | - Alan A. Wilson
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada,Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Sylvain Houle
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada.
| | - Ariel Graff-Guerrero
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Canada; Geriatric Mental Health Division, Centre for Addiction and Mental Health, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, Canada.
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42
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Abstract
Drug interactions are known to play a significant role in the incidence of adverse drug reactions (ADRs) both in the community and in hospitals. Both the newer atypical antipsychotics and their more traditional counterparts are subject to drug - drug interactions amongst themselves, with other psychotropics, and with the agents used in the treatment of various physical ailments. The most common interactions encountered in clinical practice are pharmacodynamic in nature. It is well established that antipsychotic drugs reduce the efficacy of levodopa in parkinson's disease by blockade of dopamine receptors in the corpus striatum. The case reported here illustrates a common pharmacodynamic drug interaction of haloperidol with levodopa in a 60-year-old female patient.
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Affiliation(s)
- Jisha M Lucca
- Department of Pharmacy Practice, JSS College of Pharmacy, Mysore, Karnataka, India
| | - Madhan Ramesh
- Department of Pharmacy Practice, JSS College of Pharmacy, Mysore, Karnataka, India
| | | | - Rajesh Raman
- Department of Psychiatry, JSS Medical College and Hospital, Ramanuja Road, Mysore, Karnataka, India
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43
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Abstract
The metabolic side effects of atypical antipsychotics (AAPs) have been widely studied in younger populations, but research investigating these sequelae in the elderly is lacking. This article reviews the available literature examining the use of AAPs in the elderly, evaluating their association with weight gain and changes in blood glucose and lipid parameters. We find a relative paucity of studies in this area; while some data highlight significant, collective changes in metabolic parameters, the majority suggests an apparent low vulnerability to these side effects. We conclude that the risk and clinical implications of unfavorable metabolic changes in the elderly being treated with AAP medications remain largely undetermined, and we caution against drawing firm conclusions based on the available data. The conflicting evidence leaves us recommending that metabolic monitoring be implemented, with regular follow-up as advocated in other populations.
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Suzuki T, Uchida H. Successful withdrawal from antipsychotic treatment in elderly male inpatients with schizophrenia--description of four cases and review of the literature. Psychiatry Res 2014; 220:152-7. [PMID: 25200762 DOI: 10.1016/j.psychres.2014.08.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 11/30/2022]
Abstract
We describe four elderly male inpatients with chronic schizophrenia successfully withdrawn from long-lasting antipsychotic treatment. Then we review studies in which antipsychotics were discontinued in patients 65 y.o. (or at least 50 on the average) or older using PubMed (last search; August 2014). The average (±S.D.) age, duration of illness and total duration of hospitalization of the patients were 77.0±8.6 y.o., 46.0±26.9 years, and 41.0±27.3 years, respectively. Illness severity as assessed with the Clinical Global Impression (CGI)-Severity was five for three patients and six for the other. After withdrawal from antipsychotic treatment for 28.3±11.4 weeks, none showed appreciable changes in psychopathology, functioning as well as adverse effects and the resultant CGI-Improvement was four for all patients. Compared with those who needed continuous antipsychotic treatment in the same unit (n=51; mean±S.D. age: 56.0±12.1 y.o.), they were significantly older and treated with a fewer number of total psychotropics at baseline (1.50±1.00 versus 4.94±1.93 agents). A literature search failed to find any studies in which antipsychotics were discontinued exclusively in patients with schizophrenia 65 years or older and underscored a clear paucity of data on this important topic. Cessation of chronic antipsychotic treatment could be a viable option at least in some patients with geriatric schizophrenia although more systematic studies are necessary.
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Affiliation(s)
- Takefumi Suzuki
- Department of Neuropsychiatry, Keio University School of Medicine, 35, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Department of Psychiatry, Inokashira Hospital, Tokyo, Japan.
| | - Hiroyuki Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, 35, Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Centre for Addiction and Mental Health, Geriatric Mental Health Program, Toronto, Ontario, Canada
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Tampi RR, Tampi DJ. Efficacy and tolerability of benzodiazepines for the treatment of behavioral and psychological symptoms of dementia: a systematic review of randomized controlled trials. Am J Alzheimers Dis Other Demen 2014; 29:565-74. [PMID: 25551131 PMCID: PMC10852883 DOI: 10.1177/1533317514524813] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The objective of this review is to summarize the available data on the use of benzodiazepines for the treatment of behavioral and psychological symptoms of dementia (BPSD) from randomized controlled trials (RCTs). A systematic search of 5 major databases, PubMed, MEDLINE, PsychINFO, EMBASE, and Cochrane Collaboration, yielded a total of 5 RCTs. One study compared diazepam to thioridazine, 1 trial compared oxazepam to haloperidol and diphenhydramine, 1 trial compared alprazolam to lorazepam, 1 trial compared lorazepam to haloperidol, and 1 trial compared intramuscular (IM) lorazepam to IM olanzapine and placebo. The data indicates that in 4 of the 5 studies, there was no significant difference in efficacy between the active drugs to treat the symptoms of BPSD. One study indicated that thioridazine may have better efficacy than diazepam for treating symptoms of BPSD. In 1 study, the active drugs had greater efficacy in treating BPSD when compared to placebo. There was no significant difference between the active drugs in terms of tolerability. However, in 2 of the 5 studies, about a third of the patients were noted to have dropped out of the studies. Available data, although limited, do not support the routine use of benzodiazepines for the treatment of BPSD. But these drugs may be used in certain circumstances where other psychotropic medications are unsafe for use in individuals with BPSD or when there are significant medication allergies or tolerability issues with certain classes of psychotropic medications.
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Affiliation(s)
- Rajesh R. Tampi
- Adult Psychiatry Residency, Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Harlingen, TX, USA
| | - Deena J. Tampi
- Behavioral Health Services, Saint Francis Hospital and Medical Center, Hartford, CT, USA
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Clark-Papasavas C, Dunn JT, Greaves S, Mogg A, Gomes R, Brownings S, Liu K, Nwosu B, Marsden P, Joemon J, Cleij M, Kessler R, Howard R, Reeves S. Towards a therapeutic window of D2/3 occupancy for treatment of psychosis in Alzheimer's disease, with [18F]fallypride positron emission tomography. Int J Geriatr Psychiatry 2014; 29:1001-9. [PMID: 24578318 DOI: 10.1002/gps.4090] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 01/14/2014] [Accepted: 01/23/2014] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Dopamine D2/3 receptor positron emission tomography tracers have guided antipsychotic prescribing in young people with schizophrenia by establishing a 'therapeutic window' of striatal D2/3 receptor occupancy. Older people, particularly those with dementia, are highly susceptible to motor side effects and may benefit from the appropriate application of imaging techniques. The study aimed to adapt [18F]fallypride imaging for use in occupancy studies in Alzheimer's disease (AD) and to investigate whether data acquisition could be made more tolerable by piloting the protocol in a small sample. METHODS Six participants with AD (three men; 85.0 ± 5.6 years old; MMSE = 16.0 ± 2.4) were recruited prior to commencing amisulpride for the treatment of psychosis and associated agitation. [18F]fallypride binding potential (BPND ) was determined using an interrupted scanning protocol at baseline (n = 6) and after 27.0 ± 6.1 days of amisulpride (25-50 mg) treatment (n = 4). D2/3 occupancy was calculated by percentage reduction in BPND between scanning sessions. Image data were re-analysed after reducing individual sampling times to 20 min. RESULTS The protocol was tolerated well, apart from the final (40 min) session of the post-treatment scan in one participant. Higher occupancies were achieved in the striatum (caudate 47-70%, putamen 31-58%) and thalamus (54-76%) than in the inferior temporal gyrus (27-43%). There was high agreement between occupancy values derived using longer and shorter sampling times (mean absolute difference 6.1% in the inferior temporal gyrus; <2% all other regions). CONCLUSIONS The protocol is feasible for use in AD and represents the first step towards establishing dose-occupancy relationships across older clinical populations.
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Affiliation(s)
- Chloe Clark-Papasavas
- Department of Old Age Psychiatry, Institute of Psychiatry, King's College London, London, UK
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Therapeutic window for striatal dopamine D(2/3) receptor occupancy in older patients with schizophrenia: a pilot PET study. Am J Geriatr Psychiatry 2014; 22:1007-16. [PMID: 25217025 DOI: 10.1016/j.jagp.2013.01.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 01/21/2012] [Accepted: 02/27/2012] [Indexed: 11/23/2022]
Abstract
OBJECTIVE In younger patients with schizophrenia, positron emission tomography (PET) studies have identified a therapeutic window of striatal dopamine D(2/3) receptor occupancy of 65%-80%. This type of empirical information is not available in late life. Our primary aim was to assess the effect of changes in D(2/3) relative receptor occupancy (RRO) on clinical outcomes in this population. DESIGN Open-label intervention. SETTING Centre for Addiction and Mental Health, Toronto. PARTICIPANTS Subjects with schizophrenia age 50 years or more who were clinically stable and previously maintained on oral risperidone for D(2/3) RRO in dorsal putamen was assessed, using the region of interest analysis of [¹¹C]raclopride PET scans, before and after the dose reduction. Clinical assessments included the Positive and Negative Syndrome Scale and the Simpson-Angus Scale. RESULTS Nine subjects (mean ± SD age: 58 ± 7 years; mean ± SD baseline risperidone dose: 3.4 ± 1.6 mg/day) participated in the study. Extrapyramidal symptoms (EPS) were present in six subjects and were associated with 70% or more D(2/3) RRO in the putamen (range: 70%-87%). Following the dose reduction, EPS resolved in five subjects. Two subjects experienced a clinical worsening at 52% and at less than 50% D(2/3) RRO. CONCLUSION EPS diminished less than 70% D(2/3) RRO, which suggests a lower therapeutic window for older patients with schizophrenia than that for younger patients. Although these findings have to be replicated in a larger sample, they have important implications for future drug development and clinical guidelines in late-life schizophrenia.
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van der Putten MJG, Wetzels RB, Bor H, Zuidema SU, Koopmans RTCM. Antipsychotic drug prescription rates among Dutch nursing homes: the influence of patient characteristics and the dementia special care unit. Aging Ment Health 2014; 18:828-32. [PMID: 24506695 DOI: 10.1080/13607863.2014.884537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To assess the differences in antipsychotic drug prescription rates in residents with dementia in dementia special care units (SCUs) of Dutch nursing homes, considering the differences in patient characteristics. METHOD As part of the Waalbed-II study, the data on antipsychotic drug use in 290 patients were collected and the Global Deterioration Scale (GDS) stage, type of dementia and behaviour (Cohen-Mansfield Agitation Inventory (CMAI)) were measured in 14 SCUs in nine nursing homes. A multilevel logistic regression model was used to assess the difference in antipsychotic drug prescription rates between dementia SCUs adjusted for age, gender, GDS stage, type of dementia and CMAI factor scores. RESULTS Two hundred and ninety residents met the inclusion criteria. Thirty-two per cent were prescribed an antipsychotic drug. Antipsychotic drugs were more often prescribed in patients with physically aggressive and non-aggressive behaviour and in patients with mixed dementia (vascular/Alzheimer's) than in patients with other types of dementia. Antipsychotic drug prescriptions significantly differed among the dementia SCUs. The odds of antipsychotic drug use for patients in the SCU with the highest prevalence of drug use were 2.76 (95% confidence interval (CI) 1.14-6.69) times as high as for the SCU with the lowest prevalence of drug use, taking the patient characteristics into account. CONCLUSION Antipsychotic drug use in nursing home residents with dementia is not only predicted by the type of dementia and patient behaviour, but it is independently associated with the dementia SCU at which the patient resides. This result indicates that antipsychotic drugs are not only prescribed for their clinical indications (agitation/aggression) but are associated with environmental factors that may reflect a specific nursing home prescribing culture.
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Affiliation(s)
- M J G van der Putten
- a Department of Primary and Community Care, Centre for Family Medicine, Elderly Care Medicine and Public Health , Medical Centre, Radboud University Nijmegen , Nijmegen , The Netherlands
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Abstract
Use of antipsychotics for treatment of behavioral and psychological symptoms of dementia is frequent among persons with Alzheimer disease (AD). Doses used in long-term therapy have not been previously reported. We describe antipsychotic doses used among community-dwelling persons with AD and investigate factors associated with high-dose use. The MEDALZ-2005 (Medication use and Alzheimer disease) cohort is a nationwide sample including all persons with clinically diagnosed AD at the end of year 2005 in Finland (n = 28,093). Data including prescriptions, comorbidities, and hospital discharge diagnoses were collected from nationwide registers. Antipsychotic doses in monotherapy were investigated during 2006 to 2009. Among 8920 antipsychotic users, 4% (n = 336) used antipsychotics with high dose. Typical antipsychotics were more often used with high dose than atypical antipsychotics. High-dose use was associated with younger age (<80 years) (odds ratio [OR], 1.71; 95% confidence interval [CI], 1.36-2.15]), male sex (OR, 1.52; CI, 1.21-1.91), history of psychiatric disorder (OR, 3.25; CI, 2.54-4.15), and inversely associated with Charlson Comorbidity Index score (score 1: OR, 0.74; CI, 0.57-0.97; score ≥2: OR, 0.68; CI, 0.47-0.97). In conclusion, the majority of persons with AD used antipsychotics with low or medium dose. Typical antipsychotics were more often used with high dose than atypical antipsychotics, which indicates a need for precise dosing instructions in the treatment of behavioral and psychological symptoms of dementia. Clinicians should regularly assess dosing levels especially among men and those with history of psychiatric disorder.
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Correlation of haloperidol concentration in blood and cerebrospinal fluid: a pharmacokinetic study. J Clin Psychopharmacol 2014; 34:516-7. [PMID: 24875078 DOI: 10.1097/jcp.0000000000000125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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