According to the European League Against Rheumatism (EULAR) recommendations, tumor necrosis factor (TNF) inhibitor, tocilizumab (TCZ), and abatacept (ABT) are in parallel when determining first biologics to use for patients with RA who have shown inadequate response to conventional synthetic DMARDs (csDMARDs) [1]. Here, TNF is linked to rheumatoid arthritis.