Atlas One · Host Biology · Scale 07 — System

Ankylosing Spondylitis

Ankylosing spondylitis (AS; radiographic axSpA) is a chronic inflammatory spondyloarthropathy with sacroiliitis and spinal ankylosis; HLA-B27+ in ~90%; IL-17A/IL-23 and TNF pathways drive enthesitis; anti-TNF and anti-IL-17A (secukinumab, ixekizumab) are first-line therapy.

Also known as: AS, ankylosing spondylitis, axial spondyloarthritis, axSpA, radiographic axSpA, r-axSpA, non-radiographic axSpA, nr-axSpA, Bechterew disease, Marie-Strümpell disease, spondyloarthropathy, SpA, BASDAI, ASDAS, bamboo spine

Scale 07 — SystemScale
draftStatus
2026-06-07Last Reviewed
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ankylosing-spondylitis

Ankylosing Spondylitis

Ankylosing spondylitis (AS; radiographic axSpA) is a chronic inflammatory spondyloarthropathy with sacroiliitis and spinal ankylosis; HLA-B27+ in ~90%; IL-17A/IL-23 and TNF pathways drive enthesitis; anti-TNF and anti-IL-17A (secukinumab, ixekizumab) are first-line therapy.