Hepatitis B core-related antigen levels are associated with response to entecavir and peginterferon add-on therapy in hepatitis B e antigen-positive chronic hepatitis B patients

Clin Microbiol Infect. 2016 Jun;22(6):571.e5-9. doi: 10.1016/j.cmi.2016.02.002. Epub 2016 Feb 18.

Abstract

Hepatitis B core-related antigen (HBcrAg), a new serum marker, may be useful in monitoring chronic hepatitis B infection. HBcrAg was measured in 175 hepatitis B e antigen-positive patients treated with entecavir (ETV) with or without peginterferon (PEG-IFN) add-on therapy. Decline in HBcrAg was stronger in patients with vs. without combined response (ETV: -3.22 vs. -1.71 log U/mL, p <0.001; PEG-IFN add-on: -3.16 vs. -1.83 IU/mL, p <0.001) and in patients with vs. without hepatitis B surface antigen (HBsAg) response (ETV: -2.60 vs. -1.74 log U/mL, p <0.001; PEG-IFN add-on: -2.38 vs. -2.15 log U/mL, p = 0.31). HBcrAg was associated with combined response (adjusted odds ratio 0.3, 95% confidence interval 0.2-0.5, p <0.001), but was not superior to quantitative HBsAg (qHBsAg).

Keywords: Chronic hepatitis B infection; entecavir; hepatitis B core-related antigen; peginterferon-alpha 2a; serum marker.

Publication types

  • Evaluation Study

MeSH terms

  • Adult
  • Antiviral Agents / therapeutic use*
  • Drug Monitoring / methods*
  • Female
  • Guanine / analogs & derivatives*
  • Guanine / therapeutic use
  • Hepatitis B Core Antigens / blood*
  • Hepatitis B Surface Antigens / blood*
  • Hepatitis B e Antigens / blood*
  • Hepatitis B, Chronic / drug therapy*
  • Humans
  • Interferon-alpha / therapeutic use
  • Male
  • Randomized Controlled Trials as Topic
  • Young Adult

Substances

  • Antiviral Agents
  • Hepatitis B Core Antigens
  • Hepatitis B Surface Antigens
  • Hepatitis B e Antigens
  • Interferon-alpha
  • entecavir
  • Guanine