The rtA194T polymerase mutation impacts viral replication and susceptibility to tenofovir in hepatitis B e antigen–positive and hepatitis B e antigen–negative hepatitis B virus strains
Samad Amini‐Bavil‐Olyaee, Ulf Herbers, Julie Sheldon, Tom Luedde, Christian Trautwein, Frank Tacke – 27 March 2009 – Tenofovir is a new effective treatment option for patients with chronic hepatitis B, but could be potentially hampered by mutations in the hepatitis B virus (HBV) polymerase conferring drug resistance. Drug resistance may occur preferentially if long‐term administration is required, for example, in patients with hepatitis B e antigen (HBeAg)‐negative HBV infection bearing precore (PC) and basal core promoter (BCP) mutations.