The initial cohort of participants will be enrolled in 3 treatment groups receiving 1) VBR + AB-729 + SOC NrtI, 2) VBR + SOC NrtI, or 3) AB-729 + SOC NrtI for up to 48 weeks. At Week 48, all participants will have an assessment of Treatment Stopping Criteria. Any participant who meets the Treatment Stopping Criteria, will discontinue their assigned treatment including NrtI and will remain in follow-up through Week 96. The participants who do not meet the Treatment Stopping Criteria will continue treatment with NrtI alone and will remain in follow-up through Week 96. Up to an additional 2 cohorts may be added to the study in future protocol amendments.
The purpose of this study is to determine if vebicorvir (VBR, ABI-H0731) in combination with AB-729 is safe and effective in participants with chronic hepatitis B infection (cHBV) receiving a standard of care nucleos(t)ide/reverse transcriptase inhibitor (SOC NrtI).