Abstract
Objectives To determine whether specific parameters contribute to clinical outcomes at 1 year post-diagnosis in early rheumatoid arthritis (RA) patients under the ‘treat-to-target’ strategy in clinical practice. Methods We retrospectively analyzed 125 RA patients selected according to the following criteria; the patients’ symptom duration was ≤6 months, and none had experience with DMARDs. We evaluated the patients’ clinical disease activity at baseline and 1 year of treatment and the musculoskeletal ultrasound (MSUS)-detected synovitis activity at baseline. We performed an analysis to identify parameters that contribute to SDAI remission and the use of biologic/targeted synthetic (b/ts) DMARDs at 1 year post-diagnosis. Results Forty-seven patients received b/tsDMARDs therapy, and 58 patients achieved SDAI remission at 1 year post-diagnosis. Rheumatoid factor positivity, low patient’s/evaluator’s global assessment at baseline, and methotrexate use at 1 year post-diagnosis were associated with SDAI remission. The baseline clinical disease activity and MSUS scores were not associated with SDAI remission. Anti-cyclic citrullinated peptide antibody positivity/high titer and high swollen joint counts or the presence of severe synovial hypertrophy at baseline were associated with the use of b/tsDMARDs therapy. Conclusion The value of the expected poor-prognosis factors may be diminished by intensive therapy within the ‘windows of opportunity’.
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