Similar to the aforementioned E0771 study, the cytokines that positively correlated with tumor burden in this E0771 cohort were IL-9 (r = 0.6117, p = 0.0346), IL-12p70 (r = 0.6003, p = 0.0390), and CXCL1 (KC) (r = 0.7870, p = 0.0024). Here, IL9 is linked to neoplasm.