Direct-acting antiviral treatment in adults infected with hepatitis C virus: Reactivation of hepatitis B virus coinfection as a further challenge

J Clin Virol. 2016 May;78:27-30. doi: 10.1016/j.jcv.2016.02.026. Epub 2016 Mar 3.

Abstract

Use of direct-acting antiviral drugs (DAAs) greatly improves management of adults infected with hepatitis C virus (HCV) whether patients are treatment-naive or unsuccessfully pre-treated. Several inhibitors of viral nonstructural proteins (NS3/4A protease, NS5A and NS5B polymerase) allow a rapid HCV clearance and increase rates of sustained virological response. Both the EASL and AASLD guidelines have recently published up-to-date recommendations for their use, addressing each HCV genotype and particular situations. However, management of patients coinfected with hepatitis B virus (HBV) has been developed by these guidelines with reference to cases of HBV reactivation reported during previous anti-HCV regimens containing interferon known active against both HBV and HCV. In the setting of the interferon-free HCV therapies with DAAs only, the possibility of HBV reactivation during treatment of hepatitis C is raised due to viral interferences in HCV/HBV coinfected persons. Herein, we report a case of early HBV reactivation during DAAs-based anti-HCV treatment (ledipasvir/sofosbuvir) in a patient having a resolved HBV infection and chronically infected with HCV genotype 4 and HIV. Moreover, we review similar recent cases of HBV reactivation in patients infected with HBV and HCV genotype 1 during treatment of hepatitis C by regimen incorporating other combination of DAAs (sofosbuvir/simeprevir or daclatasvir/asunaprevir). Due to the potential risk of early HBV reactivation in HCV/HBV-coinfected patients during interferon-free DAAs-based HCV therapies, altogether these cases highlight the necessity to closely monitor HBV coinfection, regardless its stage (chronic, occult, resolved), whatever HCV genotype or class of DAAs used.

Keywords: HBV reactivation; HCV Direct-Acting Antivirals; HIV infection; NS3/4A protease inhibitors; NS5A inhibitors; NS5B polymerase inhibitors.

Publication types

  • Case Reports

MeSH terms

  • Antiviral Agents / administration & dosage
  • Antiviral Agents / adverse effects*
  • Coinfection / virology
  • Hepatitis B virus / physiology*
  • Hepatitis B, Chronic / virology*
  • Hepatitis C, Chronic / complications*
  • Hepatitis C, Chronic / drug therapy*
  • Humans
  • Male
  • Middle Aged
  • Protease Inhibitors / administration & dosage
  • Protease Inhibitors / adverse effects*
  • Virus Activation / drug effects*

Substances

  • Antiviral Agents
  • Protease Inhibitors