CD47 and liver cancer: There are currently a number of bispecific antibodies targeting CD47 and PD-1/PD-L1 for the treatment of patients with various kinds of cancers [47], such as HX009 (NCT04886271), IBI322 (NCT04338659), PF-07257876 (NCT04881045) [48], SG12473 (CTR20211029), etc. Among them, the anti-PD-1/CD47 bsAb HX009 developed by Hangzhou Hanx Biopharmaceutics, Inc. to treat patients with advanced solid tumors, including gastric cancer, colorectal cancer, and liver cancer, has shown promising clinical data.