Abstract

Objective: To determine from single‐centre data the treatment continuation, discontinuation, and reasons for discontinuation among the patients with active rheumatoid arthritis (RA) or spondyloarthropathies (SpA) who were treated with infliximab as their first biological anti‐rheumatic drug.Methods: All (n = 104) RA and SpA patients who were treated with infliximab as their first biological treatment according to the national guidelines in the Centre for Rheumatic Diseases, Tampere University Hospital during 1999–2005 were analysed at baseline and after 6 months of treatment. The treatment was regarded as ineffective if the response was lower than American College of Rheumatology (ACR) response criteria ACR50 in RA or the reduction of the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) was lower than 50% or 2 cm in SpA.Results: After 6 months, 71% of the patients continued infliximab treatment and the prednisolone dose was diminished by 40%. Infliximab was discontinued in 30 patients and seven of them discontinued due to remission. Eight patients were regarded as poor responders. Thirteen patients discontinued because of adverse events, mainly infections and hypersensitivity reactions. One patient discontinued the treatment because of drug‐related leucopaenia and one because of elevated aminotransferases.Conclusion: In this study, infliximab treatment was started in patients who had active disease despite ongoing treatment with combinations of disease‐modifying anti‐rheumatic drugs (DMARDs). Seventy‐eight per cent achieved at least 50% response when infliximab was added to their DMARD treatment. Adverse events, mainly infections and hypersensitivity reactions, were in line with previous reports. Two rare adverse events were reported, one patient with leucopaenia and one with elevated aminotransferases.

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