Among 23 pts who had at least one tumor assessment by the data cut-off, 8/13 (61.5%) in 20mg/kg group and 7/10 (70%) in 30mg/kg group achieved PR. The ORR and DCR were 65.2% and 100% respectively….These results indicate that AB011, either in monotherapy or combined with chemotherapy, had a manageable safety profile and encouraging efficacy in CLDND18.2 positive advanced GC/GEJA and PC.