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Kanahara N, Kimura H, Kinoshita T, Iyo M, Takekita Y. Efficacy of Asenapine in Drug-resistant Psychotic Patients with Dopamine Supersensitivity Psychosis: Two Cases. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE : THE OFFICIAL SCIENTIFIC JOURNAL OF THE KOREAN COLLEGE OF NEUROPSYCHOPHARMACOLOGY 2023; 21:197-201. [PMID: 36700326 PMCID: PMC9889895 DOI: 10.9758/cpn.2023.21.1.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 01/27/2023]
Abstract
Dopamine supersensitivity psychosis (DSP) is an unstable clinical condition observed in individuals with schizophrenia who have been treated with an antipsychotic medication at a high dosage and/or for a long period. An up-regulation of dopamine D2 receptors (DRD2) is thought to be involved in the essential pathology of DSP. An antipsychotic agent with both tight binding to DRD2 and a long half-life is generally effective for treating DSP, but a patient who meets the criteria of treatment-resistant schizophrenia sometimes needs treatment with clozapine. We report the case details of two patients whose DSP was not controlled with several antipsychotics but was successfully controlled with asenapine. Asenapine binds to a broad range of dopamine receptors and serotonin receptors, and it is thus distinct from other atypical antipsychotics. The unique profile of asenapine may contribute to the control of severe DSP symptoms in individuals with schizophrenia.
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Affiliation(s)
- Nobuhisa Kanahara
- Division of Medical Treatment and Rehabilitation, Center for Forensic Mental Health, Chiba University, Chiba, Japan,Address for correspondence: Nobuhisa Kanahara Division of Medical Treatment and Rehabilitation, Center for Forensic Mental Health, Chiba University, 1-8-1 Inohana, Chuou-ku, Chiba-shi, Chiba 260-8670, Japan, E-mail: , ORCID: https://orcid.org/0000-0001-8550-8003
| | - Hiroshi Kimura
- Department of Psychiatry, Gakuji-kai Kimura Hospital, Chiba, Japan,Department of Psychiatry, School of Medicine, International University of Health and Welfare, Chiba, Japan,Department of Psychiatry, Chiba University Graduate School of Medicine, Chiba, Japan
| | | | - Masaomi Iyo
- Department of Psychiatry, Chiba University Graduate School of Medicine, Chiba, Japan
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Affiliation(s)
- Martin Harrow
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Thomas H Jobe
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Liping Tong
- Advocate Aurora Health, Downers Grove, IL, USA
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