Dreyer et al. assessed the association of systemic inflammation, including Hemoglobin, CEA, NLR, d-NLR, platelet-to-lymphocyte ratio (PLR), neutrophil-platelet score (NPS), and the modified Glasgow prognostic score (mGPS), which is determined by the levels of C-Reactive protein (CRP) and albumin, with the response to nCRT in 79 rectal cancer patients. Here, CEACAM5 is linked to rectal cancer.