Figure 1.

Association between clinical activity (Ankylosing Spondylitis Disease Activity Score) and immunogenicity. Ankylosing Spondylitis Disease Activity Score (ASDAS; mean ± standard deviation) measured at baseline (first and second anti-TNF drugs) and at 6 months after switching to a second anti-TNF drug in patients who did or did not develop anti-drug antibodies (ADA) against the first anti-TNF drug.

Plasencia et al. Arthritis Research & Therapy 2013 15:R79   doi:10.1186/ar4258
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