A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome

Abstract Background The optimal treatment strategy for patients with treatment‐resistant schizophrenia (TRS) associated with 22q11.2 deletion syndrome (DS) remains a subject of debate. Case Presentation We present the case of a 40‐year‐old female patient diagnosed with TRS and 22q11.2DS who was effe...

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Main Authors: Arisa Tsurue, Hideki Funahashi, Keiichi Tsurue, Masahiko Kawano, Yasushi Ishida, Yoji Hirano
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:Neuropsychopharmacology Reports
Subjects:
Online Access:https://doi.org/10.1002/npr2.12333
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author Arisa Tsurue
Hideki Funahashi
Keiichi Tsurue
Masahiko Kawano
Yasushi Ishida
Yoji Hirano
author_facet Arisa Tsurue
Hideki Funahashi
Keiichi Tsurue
Masahiko Kawano
Yasushi Ishida
Yoji Hirano
author_sort Arisa Tsurue
collection DOAJ
description Abstract Background The optimal treatment strategy for patients with treatment‐resistant schizophrenia (TRS) associated with 22q11.2 deletion syndrome (DS) remains a subject of debate. Case Presentation We present the case of a 40‐year‐old female patient diagnosed with TRS and 22q11.2DS who was effectively treated with clozapine. She was diagnosed with schizophrenia and mild intellectual disability during her adolescence; despite being hospitalized for a period of 10 years beginning in her 30s, she continued to exhibit symptoms of impulsivity, and explosive behavior, requiring periods of isolation. We ultimately decided to switch her medication to clozapine, which was administered with caution and gradually titrated upward, with no discernable adverse effects, resulting in a marked improvement in her symptoms and obviated the need for isolation. Subsequently, the patient's history of congenital heart disease and facial abnormalities prompted initial suspicions of a 22q11.2DS diagnosis, which was subsequently confirmed through genetic testing. Conclusion Clozapine may serve as an efficacious pharmacological intervention for TRS patients with 22q11.2DS, including those of Asian descent.
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spelling doaj.art-0c5a0ed2071f439d9386288cde9152a12023-06-16T15:12:03ZengWileyNeuropsychopharmacology Reports2574-173X2023-06-0143227227610.1002/npr2.12333A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndromeArisa Tsurue0Hideki Funahashi1Keiichi Tsurue2Masahiko Kawano3Yasushi Ishida4Yoji Hirano5Miyakonojo Shinsei Hospital Miyakonojo JapanDepartment of Psychiatry, Faculty of Medicine University of Miyazaki Miyazaki JapanMiyakonojo Shinsei Hospital Miyakonojo JapanMiyakonojo Shinsei Hospital Miyakonojo JapanDepartment of Psychiatry, Faculty of Medicine University of Miyazaki Miyazaki JapanDepartment of Psychiatry, Faculty of Medicine University of Miyazaki Miyazaki JapanAbstract Background The optimal treatment strategy for patients with treatment‐resistant schizophrenia (TRS) associated with 22q11.2 deletion syndrome (DS) remains a subject of debate. Case Presentation We present the case of a 40‐year‐old female patient diagnosed with TRS and 22q11.2DS who was effectively treated with clozapine. She was diagnosed with schizophrenia and mild intellectual disability during her adolescence; despite being hospitalized for a period of 10 years beginning in her 30s, she continued to exhibit symptoms of impulsivity, and explosive behavior, requiring periods of isolation. We ultimately decided to switch her medication to clozapine, which was administered with caution and gradually titrated upward, with no discernable adverse effects, resulting in a marked improvement in her symptoms and obviated the need for isolation. Subsequently, the patient's history of congenital heart disease and facial abnormalities prompted initial suspicions of a 22q11.2DS diagnosis, which was subsequently confirmed through genetic testing. Conclusion Clozapine may serve as an efficacious pharmacological intervention for TRS patients with 22q11.2DS, including those of Asian descent.https://doi.org/10.1002/npr2.1233322q11.2 deletion syndromeAsianclozapinetreatment‐resistant schizophrenia
spellingShingle Arisa Tsurue
Hideki Funahashi
Keiichi Tsurue
Masahiko Kawano
Yasushi Ishida
Yoji Hirano
A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
Neuropsychopharmacology Reports
22q11.2 deletion syndrome
Asian
clozapine
treatment‐resistant schizophrenia
title A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
title_full A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
title_fullStr A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
title_full_unstemmed A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
title_short A case study of the utilization of clozapine treatment for treatment‐resistant schizophrenia associated with 22q11.2 deletion syndrome
title_sort case study of the utilization of clozapine treatment for treatment resistant schizophrenia associated with 22q11 2 deletion syndrome
topic 22q11.2 deletion syndrome
Asian
clozapine
treatment‐resistant schizophrenia
url https://doi.org/10.1002/npr2.12333
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