The overexpression of fibroblast growth factor receptor 2b (FGFR2b) is tied to tumor progression in several malignancies, such as cholangiocarcinoma, HER2-negative gastric cancer and breast cancer. Lunan Pharmaceutical Group Corp. has developed a novel IgG1 monoclonal antibody against FGFR2b, LNF-2102, for the potential treatment of cancer.