Direct-acting Antiviral Agents Resistance-associated Polymorphisms in Chinese Treatment-naïve Patients Infected with Genotype 1b Hepatitis C Virus / 中华医学杂志(英文版)
Chinese Medical Journal
; (24): 2625-2631, 2015.
Article
в En
| WPRIM
| ID: wpr-315282
Ответственная библиотека:
WPRO
ABSTRACT
<p><b>BACKGROUND</b>It has been reported that several baseline polymorphisms of direct-acting antivirals (DAAs) agents resistance-associated variants (RAVs) would affect the treatment outcomes of patients chronically infected with hepatitis C virus (CHC). The aim of this study is to investigate the prevalence of DAAs RAVs in treatment-naÏve GT1b CHC patients.</p><p><b>METHODS</b>Direct sequencing and ultra-deep sequencing of the HCV NS3, NS5A, and NS5B gene were performed in baseline serum samples of treatment-naÏve patients infected with genotype 1b hepatitis C virus (HCVs).</p><p><b>RESULTS</b>One hundred and sixty CHC patients were studied. Complete sequence information was obtained for 145 patients (NS3), 148 patients (NS5A), and 137 patients (NS5B). Treatment-failure associated variants of DAAs were detected: 56.6% (82/145) of the patients presented S122G for simeprevir (NS3 protease inhibitor); 10.1% (14/148) of the patients presented Y93H for daclatasvir and ledipasvir (NS5A protein inhibitors); 94.2% (129/137) of the patients presented C316N for sofosbuvir (NS5B polymerase inhibitor). Nearly, all of the DAAs RAVs detected by ultra-deep sequencing could be detected by direct sequencing.</p><p><b>CONCLUSIONS</b>The majority of genotype 1b CHC patients in China present a virus population carrying HCV DAAs RAVs. Pretreatment sequencing of HCV genome might need to be performed when patients infected with GT1b HCV receiving DAAs-containing regimens in China. Population sequencing would be quite quantified for the work.</p>
Полный текст:
1
База данных:
WPRIM
Основная тема:
Antiviral Agents
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Polymorphism, Genetic
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Virulence
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Benzimidazoles
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China
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Hepatitis C
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Hepacivirus
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Drug Resistance, Viral
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Therapeutic Uses
/
Drug Therapy
Пределы темы:
Adult
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Aged
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Female
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Humans
/
Male
Страна как тема:
Asia
Язык:
En
Журнал:
Chinese Medical Journal
Год:
2015
Тип:
Article