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Title: Clinical efficacy and safety of abatacept in methotrexate-naive patients with early rheumatoid arthritis and poor prognostic factors
Authors: Westhovens, Rene ×
Robles, Manuel
Ximenes, Antonio Carlos
Nayiager, Savithree
Wollenhaupt, Jurgen
Durez, Patrick
Gomez-Reino, Juan
Grassi, Walter
Haraoui, Boulous
Shergy, William
Park, Sung-Hwan
Genant, Harry
Peterfy, Charles
Becker, Jean-Claude
Covucci, Allison
Helfrick, Roy
Bathon, Joan #
Issue Date: Dec-2009
Publisher: H.K. Lewis
Series Title: Annals of the Rheumatic Diseases vol:68 issue:12 pages:1870-1877
Abstract: OBJECTIVES: To assess the efficacy and safety of abatacept in methotrexate (MTX)-naïve patients with early rheumatoid arthritis (RA) and poor prognostic factors. METHODS: In this double-blind, Phase IIIb study, patients with RA </=2 years were randomized 1:1 to receive abatacept (~10 mg/kg) plus MTX, or placebo plus MTX. Patients were MTX-naïve and seropositive for rheumatoid factor (RF), anti-cyclic citrullinated protein (CCP) 2 or both, and had radiographic evidence of joint erosions. The co-primary endpoints were the proportion of patients achieving Disease Activity Score (DAS) 28-defined remission (C-reactive protein) and joint damage progression (Genant-modified Sharp total score [TS]) at Year 1. Safety was monitored throughout. RESULTS: At baseline, patients had a mean DAS28 of 6.3, a mean TS of 7.1 and mean disease duration of 6.5 months; 96.5 and 89.0% of patients were RF or anti-CCP2 seropositive, respectively. At Year 1, a significantly greater proportion of abatacept plus MTX-treated patients achieved remission (41.4 vs 23.3%; p<0.001), and there was significantly less radiographic progression (mean change in TS; 0.63 vs 1.06; p=0.040), versus MTX alone. Over 1 year, the frequency of adverse events (AEs; 84.8 vs 83.4%), serious AEs (7.8 vs 7.9%), serious infections (2.0 vs 2.0%), autoimmune disorders (2.3 vs 2.0%) and malignancies (0.4 vs 0%) was comparable for abatacept plus MTX versus MTX alone. CONCLUSIONS: In a MTX-naïve population with early RA and poor prognostic factors, the combination of abatacept and MTX provided significantly better clinical and radiographic efficacy compared with MTX alone, and had a comparable, favorable safety profile.
URI: 
ISSN: 0003-4967
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Rheumatology Section (-)
× corresponding author
# (joint) last author

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