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Percentages of patients with ankylosing spondylitis achieving response at week 12. Enthesitis is defined as at least 1 inflamed enthesis in Maastricht Ankylosing Spondylitis Enthesitis Score or plantar fascia, and peripheral arthritis is defined as at least 1 swollen joint in a 44-joint count. Data are observed values. ASAS20/40, Assessment of SpondyloArthritis international Society 20%/40% response; BASDAI 50, 50% improvement in the Bath Ankylosing Spondylitis Disease Activity Index.
