仅用于工业应用或科学研究，不可用于人类或动物的临床诊断或治疗，非药用. Osemitamab is an IgG1 antibody targeting to human claudin-18.2. Osemitamab consists of human-Mus musculus monoclonal TST001 γ1-chain, disulfide with human-Mus musculus monoclonal TST001 κ-chain, dimer （ACI）. Osemitamab in combination with Capecitabine （HY-B0016） and Oxaliplatin （HY-17371）, can be used for G/GEJ cancer study