The Safety and Efficacy of Sequential Treatment of Ropeginterferon Alfa-2b (P1101) and Anti-PD1 in Interferon-Naive Adults With Chronic Hepatitis B or D Infection

P1101 (Ropeginterferon alfa-2b) 450 µg subcutaneously (SC) Q2W for 6 doses (12 weeks), followed by 0.3 mg/kg Nivolumab for 6 doses (12 weeks), with a follow up of 24 weeks. All patients will also receive Entecavir 0.5 mg QD from Day 1 to Follow-up 24.