Abstract Number: 1603 • 2014 ACR/ARHP Annual Meeting
Effect of Methotrexate on the Immunogenicity of TNF Inhibitors in Spondyloarthritis Patients
Background/Purpose: The spondyloarthritis (SpA) patients treated under TNF inhibitors (TNFi) with detectable antidrug antibodies (ADA) often develop loss of efficacy. Concomitant therapy with methotrexate (MTX)…