Effects of ustekinumab versus tumor necrosis factor inhibition on enthesitis: Results from the enthesial clearance in psoriatic arthritis (ECLIPSA) study.

Objectives: To date, all studies addressing on anti-inflammatory drugs in PsA have been carried out in psoriatic arthritis (PsA) patients with polyarticular disease. Specific studies on enthesitis are missing. IL-23 is considered to play a central role in the development of enthesitis.