Virological breakthrough and resistance in patients with chronic hepatitis B receiving nucleos(t)ide analogues in clinical practice
Chanunta Hongthanakorn, Watcharasak Chotiyaputta, Kelly Oberhelman, Robert J. Fontana, Jorge A. Marrero, Tracy Licari, Anna S. F. Lok – 24 March 2011 – Virological breakthrough (VBT) is the first manifestation of antiviral drug resistance during nucleos(t)ide analogue (NUC) treatment of chronic hepatitis B (CHB), but not all VBTs are due to drug resistance. This study sought to determine the incidence of VBT and genotypic resistance (GR) in patients with CHB who were receiving NUCs in clinical practice. Records of patients with CHB who were receiving NUCs were reviewed.