期刊
EXPERT OPINION ON EMERGING DRUGS
卷 18, 期 4, 页码 461-475出版社
TAYLOR & FRANCIS LTD
DOI: 10.1517/14728214.2013.847089
关键词
direct acting antivirals; HCV; host targeting agents; interferon; NS5A inhibitors; polymerase inhibitors; protease inhibitors
资金
- Roche
- Merck
- Gilead
- BMS
- Janssen
Introduction: About 2.35% of the world population can be infected with hepatitis C virus (HCV) responsible for chronic hepatitis, liver cirrhosis and hepatocellular carcinoma. Currently available interferon-based medication is successful in up to 75% of the patients infected with HCV genotypes 1, 2 or 3 and lower efficacy in other genotypes. Unfortunately sustained virologic response (SVR) rate in genotype 1 infected non-responders to previous therapy with advanced hepatic fibrosis even after retreatment with the first generation direct acting antivirals (DAA) is about 40% only. Areas covered: The second generation DAA, which have recently been submitted for registration (Sofosbuvir and Simeprevir) still need combination with PegIFN alpha and RBV in patients infected with HCV genotype 1. There is a need for more effective antiviral therapy for difficult to treat patients who are interferon intolerant, developed liver cirrhosis or non-responders to previous therapies. Therefore, IFN-free regimens are step for future therapies consisting of combinations of novel investigational DAA and host targeting agents. Expert opinion: The introduction of novel DAA with a good safety profile and high barrier to resistance can lead to SVR rates exceeding 90% in treatment nayve patients and non-responders to previous therapy infected with different genotypes.
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