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. Catumaxomab, a trifunctional IgG2 antibody, is composed of mouse and rat heavy and light chains and binds to human EpCAM and human CD 3 receptors. The Fc region of Catumaxomab region has binding affinity for FcγR1 （CD 64）, FcγRIIA （CD 32a）, and FcγRIII （CD 16）. Catumaxomab can be used for anti-tumor research, especially epithelial cancers