%0 Journal Article %T Understanding Hepatitis C Virus Drug Resistance: Clinical Implications for Current and Future Regimens %J Archive of "Topics in Antiviral Medicine". %D 2017 %X Viral resistance to direct-acting antiviral drugs may impact their effectiveness during treatment of hepatitis C virus (HCV) infection. Most data on HCV drug resistance concern genotypes 1 and 3. The clinical impact of resistance to HCV nonstructural protein 5A (NS5A) inhibitors and a practical approach to indications and methods for resistance testing are discussed %K hepatitis C virus %K HCV %K resistance %K resistance-associated substitution %K RAS %K mutations %K HCV treatment %K HCV retreatment %K direct-acting antiviral %K NS5A %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5935211/