Comparative analysis of clinical profile, therapeutic management, and clinical prognosis of patients with seropositive or seronegative rheumatoid arthritis following the introduction of a first targeted therapy in a real-life setting
摘要
To evaluate clinical prognosis following the introduction of a first targeted therapy (TT) according to the serological profile of rheumatoid arthritis (RA) and to analyze differences in efficacy of TT.
MethodThis single-center retrospective study included patients with RA who received a first TT between 2000 and 2020. Patients were seropositive (IgM and/or IgA rheumatoid factors plus anti-CCP) or seronegative (without autoantibodies). Various data were collected at baseline and during follow-up. The primary endpoint was remission (assessed by DAS28) at one and two years.
ResultsAmong 259 patients, 164 (63.3%) were seropositive and presented higher disease activity and more frequent erosive involvement than seronegative patients at TT introduction. The most prescribed first TTs were etanercept for seronegative RA (47 ([49.5%) versus 41 (25%), p < 0.001) and abatacept for seropositive RA (41 (25%) versus 6 (6.3%), p < 0.001). Remission rates and TT switches were not significantly different between groups. Initial DAS28-CRP and number of painful joints were independent prognostic factors associated with absence of remission at one year (OR 0.46 (0.26, 0.80), p = 0.007) and two years (OR 0.90 (0.82, 0.98), p = 0.027) respectively. Among seropositive patients, the two-year remission rate was not significantly different according to the therapeutic class received (cellular- versus cytokine-targeted).
ConclusionsPatients with seropositive RA showed more active and severe disease than patients with seronegative RA at the introduction of a first TT. Although the choice of the first TT varied according to serological profile and time of analysis, clinical prognosis at one and two years was similar between groups.