What to Expect When Systemic Treatment in Juvenile Idiopathic Arthritis Is Withdrawn?

Author:

Nieto-González Juan CarlosORCID,Garulo Daniel ClementeORCID,Boteanu Alina,Trives-Folguera LauraORCID,García-Fernández Antía,Navarro Pablo GonzálezORCID,Robledillo Juan Carlos López,Monteagudo-Saéz Indalecio

Abstract

ObjectiveThe goal of juvenile idiopathic arthritis (JIA) treatment is to maintain clinical remission. It is also important to reduce drug exposure, whenever possible, in order to avoid or decrease potential side effects. We aimed to analyze remission survival after systemic treatment withdrawal and to determine which factors can influence it.MethodsWe conducted a multicenter, observational, longitudinal study. All patients included had a diagnosis of JIA. We analyzed remission survival using Kaplan-Meier curves according to the systemic treatment received (methotrexate [MTX] alone or in combination with biologic disease-modifying antirheumatic drugs [bDMARDs]) and JIA subgroups (oligoarticular and polyarticular course, juvenile spondyloarthritis, and systemic JIA). In addition, risk factors were examined using multivariate analysis.ResultsWe included 404 patients with JIA; 370 of them (92%) had received systemic treatment at some point and half of them (185 patients) had withdrawn on at least 1 occasion. There were 110 patients who flared (59%) with a median time of 2.3 years. There were no differences in remission survival between JIA subcategories. Twenty-nine percent of patients with JIA who received MTX and bDMARDs, in which MTX alone was withdrawn, flared; median time to flare of 6.3 years. However, if only the bDMARD was withdrawn, flares occurred 57% of the time; median time to flare of 1.1 years.ConclusionFlares are frequent when systemic treatment is withdrawn, and uveitis or joint injections could be related risk factors. In MTX and biologic-naïve patients, the frequency of flares occurred in more than half of patients, although they were less frequent when clinical remission lasted for > 1 year.

Publisher

The Journal of Rheumatology

Subject

Immunology,Immunology and Allergy,Rheumatology

Reference24 articles.

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