Patient is pregnant or breastfeeding

Patient is co infected with hepatitis C virus (HCV), hepatitis D virus (HDV), HIV-1 or HIV-2.

Patient previously received lamivudine or an investigational anti-HBV nucleoside or nucleotide analog at any time

Patient has received interferon or other immunomodulatory treatment for HBV infection in the 12 months before screening for this study

A Randomized, Double Blind Trial of LdT (Telbivudine) Versus Lamivudine in Adults With Compensated Chronic Hepatitis B