A Study to Assess the Change in Disease State in Adult Participants Being Treated With Oral Upadacitinib Tablets in Participants With Oligo- or Poly-artIcular Psoriatic Arthritis

Psoriatic arthritis (PsA) is a type of arthritis (swelling and stiffness in the joints) that is frequently seen in trial participants who also have the skin condition psoriasis. It is caused by the body's immune system mistakenly attacking healthy joint tissue causing inflammation, joint damage, disability, and a reduced life expectancy. The main objective of this study is to characterize attainment of minimal disease activity (MDA) at week 24 under continuous treatment with upadacitinib in participants with oligo- or polyarticular PsA as part of real-world practice. Upadacitinib is a drug approved for the treatment of Psoriatic arthritis (PsA) in Germany and Canada. Approximately 380 adult participants with PsA at multiple sites in Germany and Canada. Participants will receive oral Upadacitinib tablets per current local label, according to local standard of care and international guidelines. There may be a higher burden for participants in this study compared to standard of care. Participants will attend regular visits per routine clinical practice. The effect of the treatment will be checked by medical assessments, checking for side effects, and by questionnaire.