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Tanaka S, Noda T, Urashima K, Ijiri Y, Kohda Y, Kato R. Reactive metabolite of trovafloxacin activates inflammasomes: Implications for trovafloxacin-induced liver injury. J Appl Toxicol 2024; 44:846-852. [PMID: 38291012 DOI: 10.1002/jat.4585] [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: 12/26/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/01/2024]
Abstract
Trovafloxacin is a quinolone antibiotic drug with broad-spectrum activity, which was withdrawn from a global market relatively soon after approval because of serious liver injury. The characteristics of trovafloxacin-induced liver injury are consistent with an idiosyncratic reaction; however, the details of the mechanism have not been elucidated. We examined whether trovafloxacin induces the release of damage-associated molecular patterns (DAMPs) that activate inflammasomes. We also tested ciprofloxacin, levofloxacin, gatifloxacin, and grepafloxacin for their ability to activate inflammasomes. Drug bioactivation was performed with human hepatocarcinoma functional liver cell-4 (FLC-4) cells, and THP-1 cells (human monocyte cell line) were used for the detection of inflammasome activation. The supernatant from the incubation of trovafloxacin with FLC-4 cells for 7 days increased caspase-1 activity and production of IL-1ß by THP-1 cells. In the supernatant of FLC-4 cells that had been incubated with trovafloxacin, heat shock protein (HSP) 40 was significantly increased. Addition of a cytochrome P450 inhibitor to the FLC-4 cells prevented the release of HSP40 from the FLC-4 cells and inflammasome activation in THP-1 cells by the FLC-4 supernatant. These results suggest that reactive metabolites of trovafloxacin can cause the release of DAMPs from hepatocytes that can activate inflammasomes. Inflammasome activation may be an important step in the activation of the immune system by trovafloxacin, which, in some patients, can cause immune-related liver injury.
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Affiliation(s)
- Saori Tanaka
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Takumi Noda
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Kazuya Urashima
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Yoshio Ijiri
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Yuka Kohda
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Ryuji Kato
- Department of Pharmacotherapeutics and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
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Jeong SH, Lee MG, Kim YS, Chung IW. Change in absolute neutrophil count after COVID-19 infection in patients using clozapine versus other antipsychotics. Int Clin Psychopharmacol 2024; 39:187-194. [PMID: 38261424 DOI: 10.1097/yic.0000000000000506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
It was reported that patients who contracted COVID-19 while taking clozapine exhibited a distinct hematological response. However, the absence of control groups made it difficult to attribute it to clozapine. The changes in absolute neutrophil counts (ANCs) during the 4 weeks after COVID-19 infection were compared between the two groups of patients with severe mental illnesses (SMIs) (49 patients using clozapine and 54 using other antipsychotics) using generalized additive modeling. Although the pattern of a transient drop in ANC followed by gradual recovery could be demonstrated in both groups, it was more pronounced in the clozapine group ( P = 0.00025). Nevertheless, overall ANC remained at a higher level in the clozapine group. The results suggested potential interaction between clozapine and COVID-19 at the level of hematological dynamics. However, it did not necessarily indicate that such interaction is inevitably harmful or dangerous. It was more of a concern that some patients using other antipsychotics exhibited decreased ANC, which did not easily recover. Traditionally, clinicians have been concerned about the worsening of hematological side effects in clozapine patients after COVID-19 infection. However, the obtained result highlighted the necessity of hematological monitoring in patients using any type of antipsychotics for SMIs.
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Affiliation(s)
- Seong Hoon Jeong
- Department of Psychiatry, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon
| | | | - Yong Sik Kim
- Department of Psychiatry, Nowon-Uiijeongbu Eulji Medical Center, Eulji University School of Medicine, Seoul
- Institute of Clinical Psychopharmacology, Dongguk University School of Medicine, Goyang
| | - In Won Chung
- Department of Psychiatry and Yong-In Psychiatric Institute, Yong-In Mental Hospital, Yongin, Republic of Korea
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Sernoskie SC, Bonneil É, Thibault P, Jee A, Uetrecht J. Involvement of Extracellular Vesicles in the Proinflammatory Response to Clozapine: Implications for Clozapine-Induced Agranulocytosis. J Pharmacol Exp Ther 2024; 388:827-845. [PMID: 38262745 DOI: 10.1124/jpet.123.001970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/27/2023] [Accepted: 12/08/2023] [Indexed: 01/25/2024] Open
Abstract
Most idiosyncratic drug reactions (IDRs) appear to be immune-mediated, but mechanistic events preceding severe reaction onset remain poorly defined. Damage-associated molecular patterns (DAMPs) may contribute to both innate and adaptive immune phases of IDRs, and changes in extracellular vesicle (EV) cargo have been detected post-exposure to several IDR-associated drugs. To explore the hypothesis that EVs are also a source of DAMPs in the induction of the immune response preceding drug-induced agranulocytosis, the proteome and immunogenicity of clozapine- (agranulocytosis-associated drug) and olanzapine- (non-agranulocytosis-associated drug) exposed EVs were compared in two preclinical models: THP-1 macrophages and Sprague-Dawley rats. Compared with olanzapine, clozapine induced a greater increase in the concentration of EVs enriched from both cell culture media and rat serum. Moreover, treatment of drug-naïve THP-1 cells with clozapine-exposed EVs induced an inflammasome-dependent response, supporting a potential role for EVs in immune activation. Proteomic and bioinformatic analyses demonstrated an increased number of differentially expressed proteins with clozapine that were enriched in pathways related to inflammation, myeloid cell chemotaxis, wounding, transforming growth factor-β signaling, and negative regulation of stimuli response. These data indicate that, although clozapine and olanzapine exposure both alter the protein cargo of EVs, clozapine-exposed EVs carry mediators that exhibit significantly greater immunogenicity. Ultimately, this supports the working hypothesis that drugs associated with a risk of IDRs induce cell stress, release of proinflammatory mediators, and early immune activation that precedes severe reaction onset. Further studies characterizing EVs may elucidate biomarkers that predict IDR risk during development of drug candidates. SIGNIFICANCE STATEMENT: This work demonstrates that clozapine, an idiosyncratic drug-induced agranulocytosis (IDIAG)-associated drug, but not olanzapine, a safer structural analogue, induces an acute proinflammatory response and increases extracellular vesicle (EV) release in two preclinical models. Moreover, clozapine-exposed EVs are more immunogenic, as measured by their ability to activate inflammasomes, and contain more differentially expressed proteins, highlighting a novel role for EVs during the early immune response to clozapine and enhancing our mechanistic understanding of IDIAG and other idiosyncratic reactions.
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Affiliation(s)
- Samantha Christine Sernoskie
- Departments of Pharmaceutical Sciences, Faculty of Pharmacy (S.C.S., J.U.) and Pharmacology and Toxicology, Temerty Faculty of Medicine (A.J., J.U.), University of Toronto, Toronto, Ontario; and Institute for Research in Immunology and Cancer (É.B., P.T.) and Department of Chemistry (P.T.), University of Montreal, Montreal, Quebec
| | - Éric Bonneil
- Departments of Pharmaceutical Sciences, Faculty of Pharmacy (S.C.S., J.U.) and Pharmacology and Toxicology, Temerty Faculty of Medicine (A.J., J.U.), University of Toronto, Toronto, Ontario; and Institute for Research in Immunology and Cancer (É.B., P.T.) and Department of Chemistry (P.T.), University of Montreal, Montreal, Quebec
| | - Pierre Thibault
- Departments of Pharmaceutical Sciences, Faculty of Pharmacy (S.C.S., J.U.) and Pharmacology and Toxicology, Temerty Faculty of Medicine (A.J., J.U.), University of Toronto, Toronto, Ontario; and Institute for Research in Immunology and Cancer (É.B., P.T.) and Department of Chemistry (P.T.), University of Montreal, Montreal, Quebec
| | - Alison Jee
- Departments of Pharmaceutical Sciences, Faculty of Pharmacy (S.C.S., J.U.) and Pharmacology and Toxicology, Temerty Faculty of Medicine (A.J., J.U.), University of Toronto, Toronto, Ontario; and Institute for Research in Immunology and Cancer (É.B., P.T.) and Department of Chemistry (P.T.), University of Montreal, Montreal, Quebec
| | - Jack Uetrecht
- Departments of Pharmaceutical Sciences, Faculty of Pharmacy (S.C.S., J.U.) and Pharmacology and Toxicology, Temerty Faculty of Medicine (A.J., J.U.), University of Toronto, Toronto, Ontario; and Institute for Research in Immunology and Cancer (É.B., P.T.) and Department of Chemistry (P.T.), University of Montreal, Montreal, Quebec
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Cuomo A, Barillà G, Serafini G, Aguglia A, Amerio A, Cattolico M, Carmellini P, Spiti A, Fagiolini A. Drug-drug interactions between COVID-19 therapeutics and psychotropic medications. Expert Opin Drug Metab Toxicol 2023; 19:925-936. [PMID: 38032183 DOI: 10.1080/17425255.2023.2288681] [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: 05/29/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
INTRODUCTION The coronavirus (COVID-19) pandemic has led to as well as exacerbated mental health disorders, leading to increased use of psychotropic medications. Co-administration of COVID-19 and psychotropic medications may result in drug-drug interactions (DDIs), that may compromise both the safety and efficacy of both medications. AREAS COVERED This review provides an update of the current evidence on DDIs between COVID-19 and psychotropic medications. The interactions are categorized into pharmacokinetic, pharmacodynamic, and other relevant types. A thorough literature search was conducted using electronic databases to identify relevant studies, and extract data to highlight potential DDIs, clinical implications, and management strategies. EXPERT OPINION Understanding and managing potential DDIs between COVID-19 and psychotropic medications is paramount to ensuring safe and effective treatment of patients with COVID-19 and mental illness. Awareness of the diverse spectrum of DDIs, vigilant monitoring, and judicious dose modifications, while choosing pharmacotherapeutic options with low risk of interaction whenever possible, are necessary. Ongoing and future investigations should continue to review the dynamic landscape of COVID-19 therapeutic modalities and their interactions with psychotropic medications.
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Affiliation(s)
- Alessandro Cuomo
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
| | - Giovanni Barillà
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
| | - Gianluca Serafini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy
- Department of Neuroscience, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Andrea Aguglia
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy
- Department of Neuroscience, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Andrea Amerio
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Section of Psychiatry, University of Genoa, Genoa, Italy
- Department of Neuroscience, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Matteo Cattolico
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
| | - Pietro Carmellini
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
| | - Alessandro Spiti
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
| | - Andrea Fagiolini
- Division of Psychiatry, Department of Molecular Medicine University of Siena School of Medicine Siena, Siena, Italy
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Cordova VHS, Teixeira AD, Anzolin AP, Moschetta R, Belmonte-de-Abreu PS. Inflammatory markers in outpatients with schizophrenia diagnosis in regular use of clozapine: a cross-sectional study. Front Psychiatry 2023; 14. [DOI: https:/doi.org/10.3389/fpsyt.2023.1269322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2023] Open
Abstract
It is known that inflammation worsen the course of schizophrenia and induce high clozapine serum levels. However, no study evaluated this change in function of clozapine daily dose in schizophrenia. We assessed the correlation between inflammation and severity symptoms in patients with schizophrenia that take and do not take clozapine. We also assessed the correlation between clozapine daily dose and inflammatory markers to patients who take this drug. Patients were recruited from Schizophrenia Ambulatory and Psychosocial Care Center of Clinical Hospital of Porto Alegre and from an association of relatives of patients with schizophrenia. Exam results, and other important clinical exam were assessed in patients record or patients were asked to show their exam in the case of outpatients. We included 104 patients, 90 clozapine users and 14 non-clozapine users. We calculate the systemic inflammatory markers [neutrophil-lymphocyte ratio (NLR), systemic immune inflammation index (SII), and the psychopathology severity by the Brief Psychiatric Rating Scaled anchored (BPRS-a)]. These variables were compared between clozapine users and non-clozapine users. It was used mean/median test according to data distributing, with study factor (SII, MLR, and PLR), the clinical outcome: severity of symptomatology (BPRS score), and clozapine daily dose as adjustment factor. Clozapine users exhibited a significantly higher neutrophil count (mean ± SD: 5.03 ± 2.07) compared to non-clozapine users (mean ± SD: 3.48 ± 1.27; p = 0.031). After controlling for comorbidity, other parameters also showed significant differences. These findings are consistent with previous studies that have demonstrated an inflammatory response following the administration of clozapine.
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Cordova VHS, Teixeira AD, Anzolin AP, Moschetta R, Belmonte-de-Abreu PS. Inflammatory markers in outpatients with schizophrenia diagnosis in regular use of clozapine: a cross-sectional study. Front Psychiatry 2023; 14:1269322. [PMID: 37876624 PMCID: PMC10591218 DOI: 10.3389/fpsyt.2023.1269322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 09/15/2023] [Indexed: 10/26/2023] Open
Abstract
It is known that inflammation worsen the course of schizophrenia and induce high clozapine serum levels. However, no study evaluated this change in function of clozapine daily dose in schizophrenia. We assessed the correlation between inflammation and severity symptoms in patients with schizophrenia that take and do not take clozapine. We also assessed the correlation between clozapine daily dose and inflammatory markers to patients who take this drug. Patients were recruited from Schizophrenia Ambulatory and Psychosocial Care Center of Clinical Hospital of Porto Alegre and from an association of relatives of patients with schizophrenia. Exam results, and other important clinical exam were assessed in patients record or patients were asked to show their exam in the case of outpatients. We included 104 patients, 90 clozapine users and 14 non-clozapine users. We calculate the systemic inflammatory markers [neutrophil-lymphocyte ratio (NLR), systemic immune inflammation index (SII), and the psychopathology severity by the Brief Psychiatric Rating Scaled anchored (BPRS-a)]. These variables were compared between clozapine users and non-clozapine users. It was used mean/median test according to data distributing, with study factor (SII, MLR, and PLR), the clinical outcome: severity of symptomatology (BPRS score), and clozapine daily dose as adjustment factor. Clozapine users exhibited a significantly higher neutrophil count (mean ± SD: 5.03 ± 2.07) compared to non-clozapine users (mean ± SD: 3.48 ± 1.27; p = 0.031). After controlling for comorbidity, other parameters also showed significant differences. These findings are consistent with previous studies that have demonstrated an inflammatory response following the administration of clozapine.
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Affiliation(s)
- Victor Hugo Schaly Cordova
- Faculty of Medicine, Graduate Program in Psychiatry and Behavior Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Clinical Hospital of Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Amelia Dias Teixeira
- Faculty of Medicine, Graduate Program in Psychiatry and Behavior Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Ana Paula Anzolin
- Institute of Basic Health Science, Graduate Program in Biological Science: Biohemestry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Laboratory of Molecular Psychiatry, Clincal Hospital of Porto Alegre (HCPA), Porto Alegre, Brazil
| | - Roberta Moschetta
- Faculty of Medicine Undergraduate Course in Medine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Paulo Silva Belmonte-de-Abreu
- Faculty of Medicine, Graduate Program in Psychiatry and Behavior Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Psychiatry Service, Clinical Hospital of Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Elzagallaai AA, Rieder MJ. Novel insights into molecular and cellular aspects of delayed drug hypersensitivity reactions. Expert Rev Clin Pharmacol 2023; 16:1187-1199. [PMID: 38018416 DOI: 10.1080/17512433.2023.2289543] [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: 09/18/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION Delayed drug hypersensitivity reactions (DDHRs) represent a major health problem. They are unpredictable and can cause life-long disability or even death. The pathophysiology of DDHRs is complicated, multifactorial, and not well understood mainly due to the lack of validated animal models or in vitro systems. The role of the immune system is well demonstrated but its exact pathophysiology still a matter of debate. AREA COVERED This review summarizes the current understanding of DDHRs pathophysiology and abridges the available new evidence supporting each hypothesis. A comprehensive literature search for relevant publications was performed using PubMed, Google Scholar, and Medline databases with no date restrictions and focusing on the most recent 10 years. EXPERT OPINION Although multiple milestones have been achieved in our understanding of DDHRs pathophysiology as a result of the development of useful experimental models, many questions are yet to be fully answered. A deeper understanding of the mechanistic basis of DDHRs would not only facilitate the development of robust and reliable diagnostic assays for diagnosis, but would also inform therapy by providing specific target(s) for immunomodulation and potentially permit pre-therapeutic risk assessment to pursue the common goal of safe and effective drug therapy.
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Affiliation(s)
- Abdelbaset A Elzagallaai
- Department of Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Michael J Rieder
- Department of Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
- Department of Paediatrics and Physiology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
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Lin SK, Lane HY. A brief history of clozapine use in Taiwan. Schizophr Res 2023:S0920-9964(23)00224-4. [PMID: 37391310 DOI: 10.1016/j.schres.2023.06.006] [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: 06/05/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 07/02/2023]
Abstract
Blood concentrations of clozapine in Taiwanese patients appeared approximately 30-50 % higher than that from Caucasian patients, and women possessed a higher blood levels. Fluvoxamine was reported to increase the clozapine levels, reduce clozapine-related weight gain and metabolic disturbances, and improved general psychopathology. Clothiapine, a chemical structure analogue of clozapine, showed potential of benefitting patients who are unsuitable for clozapine treatment in Taiwan. Obsessive/compulsive symptom (OCS) is a common side effect of clozapine. Concentrations of clozapine were remarkably higher in patients with OCS than in those without. In conclusion, clozapine is a widely used in patients with schizophrenia in Taiwan.
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Affiliation(s)
- Shih-Ku Lin
- Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan; Taipei City Hospital and Psychiatric Center, Taipei, Taiwan
| | - Hsien-Yuan Lane
- Department of Psychiatry and Brain Disease Research Center, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan; Department of Psychology, College of Medical and Health Sciences, Asia University, Taichung, Taiwan.
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Qu K, Zhou Q, Zhu H, Zhou Z, Shen Y, Tian L, Su X. The Association Between Clozapine Plasma Concentration, CYP2D6 (*10, *2) Polymorphisms and Risk of Adverse Reactions. PSYCHIAT CLIN PSYCH 2023; 33:76-83. [PMID: 38765922 PMCID: PMC11082567 DOI: 10.5152/pcp.2023.22392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/27/2023] [Indexed: 05/22/2024] Open
Abstract
Background The aim of this article was to study the relationships between the risk of adverse reactions, plasma concentration, and cytochrome P450 2D6 rs1065852 (*10) and rs16947 (*2) polymorphisms for clozapine. Methods The steady-state clozapine plasma concentration of 100 Chinese inpatients with schizophrenia was determined using 2-dimensional liquid chromatography. The polymorphisms of cytochrome P450 2D6 (*10 and *2) were determined using fluorescent in situ hybridization protocols. Results The decreased percentages of white blood cells and neutrophils and the elevated percentages of creatine kinase, alanine aminotransferase, and aspartate transferase in patients treated with clozapine for 6 months were linearly associated with clozapine plasma concentration. Compared with the corresponding groups, the clozapine plasma concentrations of individuals with the *10TT genotype and individuals with the *2CC genotype were the highest (P < .05). The decreased percentages of white blood cells and neutrophils and elevated percentages of creatine kinase, alanine aminotransferase, and aspartate transferase for patients with the *10TT genotype were significantly higher than those for patients with the *10CC and *10CT genotypes (P < .05). The decreased percentages of white blood cells and neutrophils and increased percentages of creatine kinase, alanine aminotransferase, and aspartate transferase for patients with the *2CC genotype were significantly higher than those of the other groups (P < .05). The therapeutic reference range of clozapine for Chinese patients with schizophrenia was defined as 102.5-483.1 ng/mL. Conclusion This study demonstrated that the determination of cytochrome P450 2D6 polymorphisms and therapeutic drug monitoring of clozapine might be beneficial for identifying patients with a higher risk of adverse reactions.
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Affiliation(s)
- Kankan Qu
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Qin Zhou
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Haohao Zhu
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Zhenhe Zhou
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Yuan Shen
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Lin Tian
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - Xujiang Su
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu, China
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Ermakov EA, Melamud MM, Boiko AS, Kamaeva DA, Ivanova SA, Nevinsky GA, Buneva VN. Association of Peripheral Inflammatory Biomarkers and Growth Factors Levels with Sex, Therapy and Other Clinical Factors in Schizophrenia and Patient Stratification Based on These Data. Brain Sci 2023; 13:brainsci13050836. [PMID: 37239308 DOI: 10.3390/brainsci13050836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/18/2023] [Accepted: 05/20/2023] [Indexed: 05/28/2023] Open
Abstract
Multiple lines of evidence are known to confirm the pro-inflammatory state of some patients with schizophrenia and the involvement of inflammatory mechanisms in the pathogenesis of psychosis. The concentration of peripheral biomarkers is associated with the severity of inflammation and can be used for patient stratification. Here, we analyzed changes in serum concentrations of cytokines (IL-1β, IL-2, IL-4, IL-6, IL-10, IL-21, APRIL, BAFF, PBEF/Visfatin, IFN-α, and TNF-α) and growth/neurotrophic factors (GM-CSF, NRG1-β1, NGF-β, and GDNF) in patients with schizophrenia in an exacerbation phase. IL-1β, IL-2, IL-4, IL-6, BAFF, IFN-α, GM-CSF, NRG1-β1, and GDNF increased but TNF-α and NGF-β decreased in schizophrenia compared to healthy individuals. Subgroup analysis revealed the effect of sex, prevalent symptoms, and type of antipsychotic therapy on biomarker levels. Females, patients with predominantly negative symptoms, and those taking atypical antipsychotics had a more pro-inflammatory phenotype. Using cluster analysis, we classified participants into "high" and "low inflammation" subgroups. However, no differences were found in the clinical data of patients in these subgroups. Nevertheless, more patients (17% to 25.5%) than healthy donors (8.6% to 14.3%) had evidence of a pro-inflammatory condition depending on the clustering approach used. Such patients may benefit from personalized anti-inflammatory therapy.
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Affiliation(s)
- Evgeny A Ermakov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Mark M Melamud
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Anastasiia S Boiko
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia
| | - Daria A Kamaeva
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia
| | - Svetlana A Ivanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, 634014 Tomsk, Russia
| | - Georgy A Nevinsky
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Valentina N Buneva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
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Kato R, Yamada T, Noda T, Tanaka S, Kohda Y, Ijiri Y. Mechanism of non-steroidal anti-androgen-induced liver injury: Reactive metabolites of flutamide and bicalutamide activate inflammasomes. Toxicol In Vitro 2023; 90:105606. [PMID: 37146920 DOI: 10.1016/j.tiv.2023.105606] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/10/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
Flutamide is a non-steroidal anti-androgen agent, which is mainly used for the treatment of prostate cancer. Flutamide is known to cause severe adverse events, which includes idiosyncratic liver injury. However, details of the mechanism of these adverse reactions have not been elucidated. We investigated whether flutamide induces the release of damage-associated molecular patterns (DAMPs) that activate inflammasomes. We also tested bicalutamide, enzalutamide, apalutamide, and darolutamide for their ability to activate inflammasomes in differentiated THP-1 cells. The supernatant from the incubation of flutamide and bicalutamide with human hepatocarcinoma functional liver cell-4 (FLC-4) cells increased caspase-1 activity and production of IL-1ß by differentiated THP-1 cells. In the supernatant of FLC-4 cells with flutamide and bicalutamide, the heat shock protein (HSP) 40 or 60 was significantly increased. Addition of a carboxylesterase or a CYP inhibitor to the FLC-4 cells prevented release of HSPs from the FLC-4 cells. These results suggested that the reactive metabolites of flutamide and bicalutamide can cause the release of DAMPs from hepatocytes and activate inflammasomes. Inflammasome activation may be an important step in the activation of the immune system by flutamide or bicalutamide, which in some patients, can cause immune-related adverse events.
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Affiliation(s)
- Ryuji Kato
- Department of Cardiovascular Pharmacotherapy and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan.
| | - Tomoyuki Yamada
- Department of Pharmacy, Osaka Medical and Pharmaceutical University Hospital, Osaka 569-8686, Japan
| | - Takumi Noda
- Department of Cardiovascular Pharmacotherapy and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
| | - Saori Tanaka
- Department of Pharmacotherapeutics, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
| | - Yuka Kohda
- Department of Pharmacotherapeutics, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
| | - Yoshio Ijiri
- Department of Cardiovascular Pharmacotherapy and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
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12
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The Role of Myeloperoxidase in Clozapine-Induced Inflammation: A Mechanistic Update for Idiosyncratic Drug-Induced Agranulocytosis. Int J Mol Sci 2023; 24:ijms24021243. [PMID: 36674761 PMCID: PMC9862306 DOI: 10.3390/ijms24021243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
The risk of idiosyncratic drug-induced agranulocytosis (IDIAG) markedly constrains the use of clozapine, a neuroleptic with unparalleled efficacy. Most clozapine patients experience an early inflammatory response, likely a necessary step in IDIAG onset. However, most patients do not progress to IDIAG, presumably because of the requirement of specific human leukocyte antigen (HLA) haplotypes, T cell receptors, and other unknown factors. We established that clozapine activates inflammasomes and that myeloperoxidase bioactivation of clozapine generates neoantigens, but the connection between these early mechanistic events remained unknown and, thus, was the aim of this work. We found that the myeloperoxidase inhibitor PF-1355 attenuated myeloperoxidase activity in phorbol myristate acetate (PMA)-differentiated THP-1 macrophages, and it also attenuated clozapine-induced release of inflammatory mediators (e.g., IL-1β, CXCL1, and C-reactive protein). In vivo, pretreatment of Sprague Dawley rats with PF-1355 significantly attenuated clozapine-induced increases in neutrophil mobilization from the bone marrow to the blood and spleen, as determined using differential blood counts and flow cytometry. Moreover, the clozapine-triggered release of inflammatory mediators (e.g., IL-1β, calprotectin, CXCL1, and α-1-acid glycoprotein) from the liver, spleen, and bone marrow was dampened by myeloperoxidase inhibition. These data support the working hypothesis that oxidation of clozapine to a reactive metabolite by myeloperoxidase is critical for induction of the inflammatory response to clozapine. Ultimately, a better mechanistic understanding of the early events involved in the immune response to clozapine may elucidate ways to prevent IDIAG, enabling safer, more frequent therapeutic use of this and potentially other highly efficacious drugs.
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13
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Elzagallaai AA, Rieder MJ. Pathophysiology of drug hypersensitivity. Br J Clin Pharmacol 2022. [PMID: 36519187 DOI: 10.1111/bcp.15645] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022] Open
Abstract
Drug hypersensitivity reactions (DHRs) are type B adverse drug reactions (ADRs) traditionally defined as unpredictable, dose independent and not related to the drug pharmacology. DHRs, also called drug allergy if the immune system involvement is confirmed, represent around one-sixth of all ADRs and can cause major clinical problems due to their vague clinical presentation and irregular time course. Understanding the underlying pathophysiology of DHRs is very important for their diagnosis and management. Multiple layers of evidence exist pointing to the involvement of the immune system in DHRs. Recent data have led to a paradigm shift in our understanding of the exact pathophysiology of these reactions. Numerous hypotheses proposing explanation on how a low molecular weight drug molecule can elicit an immune reaction have been proposed. In addition to the classical "hapten" hypothesis, the reactive metabolite hypothesis, the pharmacological interaction with the immune system (p-i) concept, the danger/injury hypothesis and the altered peptide repertoire hypothesis have been proposed. We here introduce the inflammasome activation hypothesis and the cross-reactivity hypothesis as additional models explaining the pathophysiology of DHRs. Available data supporting these hypotheses are briefly summarized and discussed. We also introduced the cross-reactivity model, which may provide a platform to appreciate the potential role played by other factors leading to the activation of the immune system. We believe that although the drug in question could be the trigger of the reaction, the components of the immune system mediating the reaction do not act in isolation but rather are affected by the proinflammatory milieu occurring at the time of the reaction. This review attempts to summarize the available evidence to further illustrate the pathophysiology of DHRs.
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Affiliation(s)
- Abdelbaset A Elzagallaai
- Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Michael J Rieder
- Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
- Department of Pediatrics and Physiology, University of Western Ontario, London, Ontario, Canada
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14
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Zhou R, He M, Fan J, Li R, Zuo Y, Li B, Gao G, Sun T. The role of hypothalamic endoplasmic reticulum stress in schizophrenia and antipsychotic-induced weight gain: A narrative review. Front Neurosci 2022; 16:947295. [PMID: 36188456 PMCID: PMC9523121 DOI: 10.3389/fnins.2022.947295] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/29/2022] [Indexed: 11/21/2022] Open
Abstract
Schizophrenia (SCZ) is a serious mental illness that affects 1% of people worldwide. SCZ is associated with a higher risk of developing metabolic disorders such as obesity. Antipsychotics are the main treatment for SCZ, but their side effects include significant weight gain/obesity. Despite extensive research, the underlying mechanisms by which SCZ and antipsychotic treatment induce weight gain/obesity remain unclear. Hypothalamic endoplasmic reticulum (ER) stress is one of the most important pathways that modulates inflammation, neuronal function, and energy balance. This review aimed to investigate the role of hypothalamic ER stress in SCZ and antipsychotic-induced weight gain/obesity. Preliminary evidence indicates that SCZ is associated with reduced dopamine D2 receptor (DRD2) signaling, which significantly regulates the ER stress pathway, suggesting the importance of ER stress in SCZ and its related metabolic disorders. Antipsychotics such as olanzapine activate ER stress in hypothalamic neurons. These effects may induce decreased proopiomelanocortin (POMC) processing, increased neuropeptide Y (NPY) and agouti-related protein (AgRP) expression, autophagy, and leptin and insulin resistance, resulting in hyperphagia, decreased energy expenditure, and central inflammation, thereby causing weight gain. By activating ER stress, antipsychotics such as olanzapine activate hypothalamic astrocytes and Toll-like receptor 4 signaling, thereby causing inflammation and weight gain/obesity. Moreover, evidence suggests that antipsychotic-induced ER stress may be related to their antagonistic effects on neurotransmitter receptors such as DRD2 and the histamine H1 receptor. Taken together, ER stress inhibitors could be a potential effective intervention against SCZ and antipsychotic-induced weight gain and inflammation.
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Affiliation(s)
- Ruqin Zhou
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Meng He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
- *Correspondence: Meng He,
| | - Jun Fan
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Ruoxi Li
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yufeng Zuo
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Benben Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Guanbin Gao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, China
- Guanbin Gao,
| | - Taolei Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
- Taolei Sun,
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15
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SOC-IV-04 DAMPening the immune response to clozapine: the role of reactive metabolites in idiosyncratic drug reactions. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Al Abadey A, Connor B, Flamme ACL, Robichon K. Clozapine reduces chemokine-mediated migration of lymphocytes by targeting NF-κB and AKT phosphorylation. Cell Signal 2022; 99:110449. [PMID: 36031090 DOI: 10.1016/j.cellsig.2022.110449] [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: 06/20/2022] [Revised: 08/11/2022] [Accepted: 08/22/2022] [Indexed: 11/27/2022]
Abstract
Multiple sclerosis is a disease characterised by demyelination of axons in the central nervous system. The atypical antipsychotic drug clozapine has been shown to attenuate disease severity in experimental autoimmune encephalomyelitis (EAE), a mouse model that is useful for the study of multiple sclerosis. However, the mechanism of action by which clozapine reduces disease in EAE is poorly understood. To better understand how clozapine exerts its protective effects, we investigated the underlying signalling pathways by which clozapine may reduce immune cell migration by evaluating chemokine and dopamine receptor-associated signalling pathways. We found that clozapine inhibits migration of immune cells by reducing chemokine production in microglia cells by targeting NF-κB phosphorylation and promoting an anti-inflammatory milieu. Furthermore, clozapine directly targets immune cell migration by changing Ca2+ levels within immune cells and reduces the phosphorylation of signalling protein AKT. Linking these pathways to the antagonising effect of clozapine on dopamine and serotonin receptors, we provide insight into how clozapine alters immune cells migration by directly targeting the underlying migration-associated pathways.
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Affiliation(s)
- Afnan Al Abadey
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand; Centre for Biodiscovery Wellington, Victoria University of Wellington, Wellington, New Zealand
| | - Bronwen Connor
- Department of Pharmacology and Clinical Pharmacology, Centre for Brain Research, University of Auckland, Auckland, New Zealand
| | - Anne Camille La Flamme
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand; Centre for Biodiscovery Wellington, Victoria University of Wellington, Wellington, New Zealand; Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Katharina Robichon
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand; Centre for Biodiscovery Wellington, Victoria University of Wellington, Wellington, New Zealand.
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17
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Elzagallaai AA, Rieder MJ. Genetic markers of drug hypersensitivity in pediatrics: current state and promise. Expert Rev Clin Pharmacol 2022; 15:715-728. [DOI: 10.1080/17512433.2022.2100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Abdelbaset A Elzagallaai
- Department of Paediatrics Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Physiology and Pharmacology Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Michael J Rieder
- Department of Physiology and Pharmacology Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Robarts Research Institute, Western University, London, Ontario, Canada
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18
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de Filippis R, Kane JM, Kuzo N, Spina E, De Sarro G, de Leon J, De Fazio P, Schoretsanitis G. Screening the European pharmacovigilance database for reports of clozapine-related DRESS syndrome: 47 novel cases. Eur Neuropsychopharmacol 2022; 60:25-37. [PMID: 35635994 DOI: 10.1016/j.euroneuro.2022.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/12/2022] [Accepted: 04/16/2022] [Indexed: 12/13/2022]
Abstract
Clozapine-related drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a rare adverse reaction. We aimed to screen a large pharmacovigilance database to identify clozapine-related DRESS cases, even if otherwise reported and provide a clinical overview. We screened spontaneous reports of clozapine-related DRESS syndrome in EudraVigilance database applying the European Registry on Severe Cutaneous Adverse Drug Reactions (RegiSCAR) criteria and scores to identify probable/definite DRESS syndrome cases. Clinical and demographic characteristics of included cases were provided and associations between RegiSCAR scores, and time to develop/recover DRESS were assessed. In a total of 262,146 adverse drug reactions reports for 75,190 clozapine-treated patients, 596 cases fulfilled RegiSCAR criteria; ultimately, 51 cases were rated as probable/definite DRESS according to RegiSCAR scores, of which 4 were previously published as case reports. The mean age of patients was 41.06 years (43.1% females), with 13 patients (25.5%) receiving reported co-medication with other DRESS culprit drugs. Median time between clozapine initiation and DRESS symptoms was 25 days. Clozapine dose was associated with days to develop symptoms (Spearman's ρ 0.40, p = 0.03). Organ involvement was reported in all cases followed by fever (n = 49; 96.1%) and eosinophilia (n = 47; 92.2%). Treatment involved clozapine discontinuation for 37 patients (72.5%), while 3.9% (n = 2) of cases ended fatally. Clozapine rechallenge was undertaken in 25 patients (49.0%). The screening of the EudraVigilance database revealed 47 novel clozapine-related DRESS cases, and only one was originally reported as DRESS. Clozapine-related DRESS may occur with clozapine monotherapy not only during dose titration, but also during maintenance treatment.
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Affiliation(s)
- Renato de Filippis
- Psychiatry Unit, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, 88100, Italy; Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Psychiatry, University of Zurich, Zurich, Switzerland.
| | - John M Kane
- The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, New York, USA; Department of Psychiatry, Zucker School of Medicine at Northwell/Hofstra, Hempstead, NY, USA; Center for Psychiatric Neuroscience, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Nazar Kuzo
- Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Psychiatry, University of Zurich, Zurich, Switzerland
| | - Edoardo Spina
- Department of Clinical and Experimental Medicine, University of Messina, 98125, Messina, Italy
| | | | - Jose de Leon
- Mental Health Research Center, Eastern State Hospital, Lexington, KY, USA; Biomedical Research Centre in Mental Health Net (CIBERSAM), Santiago Apóstol Hospital, University of the Basque Country, Vitoria, Spain
| | - Pasquale De Fazio
- Psychiatry Unit, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, 88100, Italy
| | - Georgios Schoretsanitis
- Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Psychiatry, University of Zurich, Zurich, Switzerland; The Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, New York, USA; Department of Psychiatry, Zucker School of Medicine at Northwell/Hofstra, Hempstead, NY, USA
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