Clinical rheumatology
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Clinical rheumatology · Dec 2018
The effect of extra-articular manifestations on tumor necrosis factor-α inhibitor treatment duration in patients with ankylosing spondylitis: nationwide data from the Korean College of Rheumatology BIOlogics (KOBIO) registry.
Tumor necrosis factor-α inhibitor (TNFi) therapy has shown to be remarkably effective for treating ankylosing spondylitis (AS); however, nearly 30% of AS patients every year either stop TNFi therapy or switch to a different TNFi due to inefficacy or adverse effects. The goal of this study was to identify predictors of TNFi treatment duration, including extra-articular manifestations, using a nationwide registry in Korea. Data obtained from the Korean College of Rheumatology Biologics (KOBIO) registry, a nationwide, multi-center database representing 58 tertiary care hospitals in Korea. ⋯ Among TNFi drugs, golimumab had a lower discontinuation rate than that of etanercept over a 3-year follow-up period (unadjusted HR 0.46, 95% CI 0.31 to 0.68; adjusted HR 0.65, 95% CI 0.43 to 0.99). In a nationwide KOBIO registry, extra-articular manifestations, including uveitis, were not associated with TNFi treatment duration. Among clinical cofactors, the development of peripheral arthritis during TNFi therapy was associated with a higher risk of TNFi treatment discontinuance in AS patients.