Investigation of the treatment response of schizophrenia with risperidone: a pharmacogenetics study in a cohort of first episode of psychosis patients

• Grant number: 17/25016-8
• Support Opportunities: Regular Research Grants
• Duration: May 01, 2018 - July 31, 2020
• Field of knowledge: Health Sciences - Medicine - Psychiatry
• Principal Investigator: Síntia Iole Nogueira Belangero
• Grantee: Síntia Iole Nogueira Belangero
• Host Institution: Escola Paulista de Medicina (EPM). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil
• Associated researchers: Ary Gadelha de Alencar Araripe Neto ; Cristiano de Souza Noto ; Marcos Leite Santoro ; Quirino Cordeiro Júnior ; Rodrigo Affonseca Bressan ; Vanessa Kiyomi Ota Kuniyoshi

Abstract

Psychoses characterize a group of severe and disabling mental disorders. The delay in providing adequate treatment, the duration of the first episode of psychosis (FEP) and the low response to the initial treatment are among the main factors of poor prognosis. Recently, the largest genome-wide association study (GWAS) in schizophrenia found 108 regions associated with the disease. In a previous study, our group evaluated the transcriptome and the methylome of patients in FEP before and after risperidone treatment, identifying genes that may be directly related to the response to the antipsychotic. The present study proposes the identification of genetic polymorphisms related to the response to risperidone treatment. Therefore, 210 FEP patients will be evaluated in two time points: without previous use of antipsychotic medication (baseline) and after 2 months of risperidone treatment, when they will be submitted to clinical evaluation and peripheral blood collection. To evaluate the response to risperidone, we will use the PANSS (Positive And Negative Syndrome Scale) data from the first and second interviews. The genotyping of the polymorphisms will be obtained based on data extracted from the Infinium PschArrays genomic arrays (N = 60) through bioinformatics analyses and validate the findings in the remaining sample, genotyping 150 more individuals with the PsychArray. To date, only one study has conducted a genome-wide association analysis with antipsychotic response in FEP. However, the sample size was small (N = 86) and more heterogeneous. The identification of biological response markers may, in the future, allow an early and individualized therapeutic action, reducing the duration of untreated psychosis, and offering better results in terms of reducing the morbidity and increasing the patients' quality of life. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

KAGAN, SIMAO; COGO-MOREIRA, HUGO; BARBOSA, MATHEUS GHOSSAIN; CAVALCANTE, DANIEL; SHINJI, ANDRE; NOTO, MARIANE; HAGUIARA, BERNARDO; CORDEIRO, QUIRINO; BELANGEIRO, SINTIA; BRESSAN, RODRIGO A.; et al. Longitudinal invariance of the positive and negative syndrome scale negative dimension in antipsychotic naive first-episode schizophrenia. EARLY INTERVENTION IN PSYCHIATRY, JUL 2021. (14/07280-1, 17/25016-8, 10/08968-6)

MARQUES, DIOGO FERRI; OTA, VANESSA KIYOMI; SANTORO, MARCOS LEITE; TALARICO, FERNANDA; COSTA, GIOVANY OLIVEIRA; SPINDOLA, LETICIA MARIA; COGO-MOREIRA, HUGO; CARVALHO, CAROLINA MUNIZ; XAVIER, GABRIELA; CAVALCANTE, DANIEL AZEVEDO; et al. LINE-1 hypomethylation is associated with poor risperidone response in a first episode of psychosis cohort. Epigenomics, v. 12, n. 12, APR 2020. (16/04983-7, 11/50740-5, 16/02246-5, 17/25016-8, 10/08968-6, 14/07280-1)

BELANGERO, SINTIA IOLE; OTA, VANESSA KIYOMI; GADELHA, ARY; BERBERIAN, ARTHUR ALMEIDA; DE ASSUNCAO-LEME, IDAIANE BATISTA; NOTO, CRISTIANO; CHRISTOFOLINI, DENISE MARIA; BELLUCCO, FERNANDA TEIXEIRA; SANTORO, MARCOS LEITE; MAZZOTTI, DIEGO ROBLES; et al. DGCR2 influences cortical thickness through a mechanism independent of schizophrenia pathogenesis. PSYCHIATRY RESEARCH, v. 274, p. 391-394, APR 2019. (16/04983-7, 17/25016-8, 10/08968-6, 14/07280-1, 11/00030-1)

NANI, V, JOAO; DAL MAS, CAROLINE; YONAMINE, CAMILA M.; OTA, VANESSA K.; NOTO, CRISTIANO; BELANGERO, I, SINTIA; MARI, JAIR J.; BRESSAN, RODRIGO; CORDEIRO, QUIRINO; GADELHA, ARY; et al. A Study in First-Episode Psychosis Patients: Does Angiotensin I-Converting Enzyme Activity Associated With Genotype Predict Symptom Severity Reductions After Treatment With Atypical Antipsychotic Risperidone?. INTERNATIONAL JOURNAL OF NEUROPSYCHOPHARMACOLOGY, v. 23, n. 11, p. 721-730, NOV 2020. (17/25016-8, 17/02413-1, 12/08941-6, 19/09207-3)

OTA, VANESSA KIYOMI; MORETTI, PATRICIA NATALIA; SANTORO, MARCOS LEITE; TALARICO, FERNANDA; SPINDOLA, LETICIA MARIA; XAVIER, GABRIELA; CARVALHO, CAROLINA MUNIZ; MARQUES, DIOGO FERRI; COSTA, GIOVANY OLIVEIRA; PELLEGRINO, RENATA; et al. Gene expression over the course of schizophrenia: from clinical high-risk for psychosis to chronic stages. NPJ SCHIZOPHRENIA, v. 5, MAR 28 2019. (14/50830-2, 11/00030-1, 14/07280-1, 10/08968-6, 17/25016-8, 16/04983-7, 11/50740-5)