This is a real-world, observational cohort study conducted at Peking University First Hospital. Adult patients diagnosed with psoriatic arthritis will be enrolled and followed for 24 weeks in routine clinical practice.
Participants will be categorized into two cohorts based on treatment exposure at baseline: patients receiving upadacitinib and patients receiving interleukin-17 inhibitors. Treatment decisions are made by treating physicians according to standard clinical practice and are not influenced by the study protocol.
Clinical assessments will be performed at baseline and during routine follow-up visits within the 24-week observation period. Effectiveness outcomes will be evaluated across musculoskeletal and dermatologic domains, and safety outcomes will be monitored throughout follow-up. This study does not involve experimental interventions.
