Regarding ERA patients, higher values of TNF-α (36.5 pg/mL) and lower levels of IL-17A (19.6 pg/mL) were found compared to HCs (11.2 pg/mL, p < 0.01) and remission patients (55.8 pg/mL, p < 0.05), respectively. Here, IL17A is linked to enthesitis-related juvenile idiopathic arthritis.