Vol 10, No 4 (2024)
Review paper
Published online: 2024-11-25

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Current indications for the use of Janus kinase inhibitors in the treatment of juvenile idiopathic arthritis

Violetta Opoka-Winiarska1, Elżbieta Smolewska2
DOI: 10.5603/rf.102571
Rheumatology Forum 2024;10(4):184-193.

Abstract

Juvenile idiopathic arthritis (JIA) is a group of heterogeneous conditions whose main manifestation is arthritis of unknown cause and onset in childhood or adolescence. According to current guidelines, patients with a more severe disease course are treated with conventional synthetic and biological diseasemodifying antirheumatic drugs (DMARDs), which significantly improve the long-term sequelae of the disease. However, despite therapeutic advances, many patients still do not achieve an adequate response to therapy.

Janus kinase (JAK) inhibitors are a new group of targeted synthetic DMARDs previously used in adult patients to treat rheumatoid arthritis (RA). Studies on the efficacy and safety of this group of medicines in various subtypes of JIA and other rheumatic diseases in children are under way. Based on clinical trial results to date, two JAK inhibitors, tofacitinib and baricitinib, have been approved to treat selected subtypes of JIA.

This article presents the current knowledge on the efficacy and safety of JIA treatment with JAK inhibitors
and recommendations for their use in JIA. 

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