ABUS AASLD "50% of patients who had baseline HBsAg levels less than 1000 IU/mL achieved functional cure in Cohort A1 of the IM-PROVE I Phase 2a clinical trial Overall, in Cohort A1, 25% of patients achieved functional cure" https://investor.arbutusbio.com/news-releases/news-release-details/arbutus-imdusiran-achieves-functional-cure-chbv-patients-when