ABSTRACT
This review examines the efficacy, safety and pharmacokinetics of upadacitinib (UPA) for treating rheumatoid arthritis (RA), psoriatic arthritis (PsA) and axial spondyloarthritis (axSpA). This review analyzes the results of multiple clinical trials and provides a comprehensive overview of UPA effectiveness in improving disease activity, reducing symptoms, and preventing joint damage. The review also highlights the safety profile of UPA, including the increased risk of herpes zoster, non-melanoma skin cancer, and elevated creatine phosphokinase levels. Additionally, the review discusses the pharmacokinetics of UPA, emphasizing its rapid absorption and limited plasma protein binding. Overall, UPA appears to be a promising therapeutic option for patients with RA, PsA, and axSpA, particularly those with an inadequate response to other therapies.