Monitoring Thiopurine Metabolites in Korean Pediatric Patients with Inflammatory Bowel Disease
Yonsei Medical Journal
;
: 1289-1296, 2014.
Artigo
em Inglês
| WPRIM
| ID: wpr-210331
ABSTRACT
PURPOSE:
This study aimed to assess the role of thiopurine S-methyltransferase (TPMT) and 6-thioguanine nucleotide (6-TGN) as predictors of clinical response and side effects to azathioprine (AZA), and estimate the optimal AZA dose in Korean pediatric inflammatory bowel disease (IBD) patients. MATERIALS ANDMETHODS:
One hundred and nine pediatric IBD patients in whom AZA treatment was required were enrolled. Thiopurine metabolites were monitored since September 2010. Among them, 83 patients who had prescribed AZA for at least 3 months prior to September 2010 were enrolled and followed until October 2011 to evaluate optimal AZA dose, adverse effects and disease activity before and after thiopurine metabolite monitoring.RESULTS:
The result of the TPMT genotype was that 102 patients were *1/*1 (wild type), four were *1/*3C, one was *1/*6, one was *1/*16 (heterozygote) and one was *3C/*3C (homozygote). Adverse effects happened in 31 patients pre-metabolite monitoring and in only nine patients post-metabolite monitoring. AZA dose was 1.4+/-0.31 mg/kg/day before monitoring and 1.1+/-0.46 mg/kg/day after monitoring (p<0.001). However, there were no statistical differences in disease activity during metabolite monitoring period (p=0.34). Adverse effects noticeably decreased although reduction of the AZA dose since monitoring.CONCLUSION:
TPMT genotype and thiopurine metabolite monitoring could be helpful to examine TPMT genotypes before administering AZA and to measure 6-TGN concentrations during prescribing AZA in IBD patients.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Azatioprina
/
Tionucleotídeos
/
Doenças Inflamatórias Intestinais
/
Fatores de Risco
/
Resultado do Tratamento
/
República da Coreia
/
Genótipo
/
Nucleotídeos de Guanina
/
Metiltransferases
Tipo de estudo:
Estudo de etiologia
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adolescente
/
Adulto
/
Criança
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Yonsei Medical Journal
Ano de publicação:
2014
Tipo de documento:
Artigo
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