Factors associated with treatment intensification in patients with axial spondyloarthritis and high disease activity in clinical practice.

Objective: To investigate which factors are associated with treatment intensification (TI) in axial spondylarthritis (axSpA) patients with high disease activity (HDA).

Methods: Patients with axSpA and HDA (Ankylosing Spondylitis Disease Activity Score [ASDAS]≥2.1) from the Dutch SpA-Net registry were included.