By contrast, in the treatment group, CD56 positive tumors were more frequent in responder than in non-responder patients (10/16 (63%) versus 3/19 (18%), p = 0.011) and patients with CD56 positive tumor had a longer PFS than those with CD56 negative one (8.8 months (95% CI: 3.3-13.5) versus 3.9 months (95% CI: 3.1-4.7)) (p = 0.005) (table 3). Here, NCAM1 is linked to neoplasm.