Background：Codrituzumab is a humanized monoclonal antibody targeted at glypican-3 GPC3, which is a member of the glypican family. This drug is developed by Chugai Pharmaceutical in combination with Roche and has been investigated in the treatment of liver cancer. The specific expression of GPC3 is high in hepatocellular carcinoma HCC tissues, which suggests that GPC3 has obvious sensitivity and specificity in the diagnosis of hepatocellular carcinoma, and can be used as a new target for the treatment of hepatocellular carcinoma. Codrituzumab did not show significant inhibition of GPC3 in the phase I trial in combined with sorafenib and the phase II trial placebo-controlled study in patients with advanced liver cancer. Codrituzumab did not show significant inhibition of GPC3 in phase I trials and phase II trials combined with sorafenib in patients with advanced liver cancer. However, the effect of codrituzumab in the treatment of liver cancer is still under study. In 2018, researchers conducted trials such as the distribution of codrituzumab and the impact of overall survival in patients with hepatocellular carcinoma. In the combined analysis of tumor cell surface antigen GPC3 and NK cell surface antigen CD16 in patients with liver cancer, it was found that codrituzumab only had a certain therapeutic effect on patients with high expression level of GPC3 and CD16. These results suggest that GPC3 and CD16 can be used as a composite biomarker to select hepatocellular carcinoma patients for codrituzuma.
