Key Inclusion Criteria: * Male or women of non-child bearing potential * BMI 18.0 to 35.0 * Good overall health deemed by the study Investigator * CHB infection documented at least 12 months prior to screening * HBeAg-negative CHB * Must be virologically suppressed on current NA treatment Key Exclusion Criteria: * No history of cirrhosis of the liver * No current infections of Hepatitis A, D, and E, human immunodeficiency virus (type 1 and 2), and no history of or current hepatitis C. In addition, no other active infections deemed clinically relevant. * No signs of hepatocellular carcinoma * Not received an organ transplant * No malignancy within 5 years of screening, except for specific cancers that are cured by surgical resection (e.g., basal cell skin cancer) * No investigational agent received within 6 months of screening