CEACAM5 and neoplasm: In addition, for MPR alone, the AUC of tumor regression rate, SUVmax of tumor post-NCIO, and △SUVmax rate of tumor post-NCIO were significantly larger than the CEA of pre-NCIO, HDL-C of pre-NCIO, and tumor size of post-NCIO (all P < 0.05) (Complementary Table 3).