Specifically, it is custom designed for each patient to help them to detect relapse earlier than the standard care methods such as carcinoembryonic antigen (CEA) level measurement and CT imaging, and with more than 98% overall positive predictive value of relapse across multiple solid tumors (colorectal, breast lung, bladder cancer, etc.).76, 77, 78. Here, CEACAM5 is linked to urinary bladder cancer.