Reasons for Discontinuation and Adverse Effects of TNFα Inhibitors in a Cohort of Patients With Rheumatoid Arthritis and Ankylosing Spondylitis
2017
Background: The introduction of anti–tumor necrosis factor α (anti-TNFα) drugs has improved the clinical outcomes in rheumatoid arthritis (RA) and ankylosing spondylitis (AS). However, these drugs may cause adverse effects that motivate a change in or discontinuation of the treatment. Objective: To evaluate the causes of discontinuation or changes in the dosage regimen in a cohort of patients with RA and AS treated with infliximab, adalimumab, etanercept, and golimumab under clinical practice conditions. Methods: This was a retrospective observational study that included patients with RA or AS treated with anti-TNFα drugs between 2008 and 2013. Changes in the dosage regimen, reasons for treatment discontinuation, and adverse effects were recorded and analyzed. Time to discontinuation was estimated using Kaplan-Meier survival analysis. Results: A total of 123 patients with RA and 93 patients with AS were treated with anti-TNFα therapy. During the study, 55.3% of RA patients and 41.7% of AS patients had sto...
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