Algorithm based on the 2017 update of the treat-to-target recommendations for spondyloarthritis. axSpA, axial SpA; CRP, C-reactive protein; DAPSA, Disease Activity index for PSoriatic Arthritis; MDA, Minimal Disease Activity; PsA, psoriatic arthritis; SpA, spondyloarthritis.

Source: Smolen JS, Schöls M, Braun J, et al. Treating axial spondyloarthritis and peripheral spondyloarthritis, especially psoriatic arthritis, to target: 2017 update of recommendations by an international task force. Annals of the Rheumatic Diseases 2018;77:3-17.