- For participants who have undergone local hepatic surgical, radiation, ablative, or embolic therapy, the date of qualifying imaging study(ies) or qualifying biopsy must be at least 30 days after the last instance of such local therapy. Furthermore, cross-sectional imaging performed at least 30 days after such local therapy must demonstrate an area of residual viable tumor (as judged by enhancing tissue following contrast administration) with longest diameter ≥ 3cm in at least one cross-sectional axis.