Prevention of hepatitis B virus (HBV) re-infection in HBsAg and HBV-DNA negative adult patients at least one week after liver transplantation for hepatitis B induced liver failure. HBV-DNA negative status should be confirmed within the last 3 months prior to OLT. Patients should be HBsAg negative before treatment start. The concomitant use of adequate virostatic agents should be considered as standard of hepatitis B re-infection prophylaxis.