From these results, there was no significance (Figure 6A: p = 0.0546, HR = 4.355, 95% CI = 0.3131–60.58; B: p = 0.499, HR = 0.4934, 95% CI = 0.08436–2.886; C: p = 0.2165, HR = 2.563, 95% CI = 0.5110–12.86; D: p = 0.1317, HR = 3.027, 95% CI = 0.4750–19.29) observed in predicting recurrence in patients with stage IV CRC subdivided by the examined biomarkers (numbers of CTC, presence of CTM, CEA and CA19-9 levels), individually. Here, CEACAM5 is linked to colorectal carcinoma.