Ankylosing spondylitis

MONDO:0005306

An autoimmune chronic inflammatory disorder characterized by inflammation in the vertebral joints of the spine and sacroiliac joints. It predominantly affects young males. Patients present with stiffness and pain in the spine.

Also known as: ankylosing spondylarthritis

191 clinical trials for this condition and its sub-types, 110 tagged with Ankylosing spondylitis itself.

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Where it sits in the disease tree

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Part of

↑ Rheumatoid arthritis (797) ↑ Spondyloarthropathy (199) ↑ Spondylitis (120) ↑ Vertebral joint disorder (118)

Sub-types of Ankylosing spondylitis

Juvenile ankylosing spondylitis 2 trials
Juvenile spondyloarthropathy 2 trials

Including sub-types (191) Tagged with Ankylosing spondylitis (110)

Trials to join now! 33 Not yet recruiting 18 Not yet finished but already full! 17 Completed 41 Terminated 1

Pain pill showdown: ultracet vs. voltaren for back inflammation

Symptom relief Stopped early

This study compared two pain medications—Ultracet (tramadol/acetaminophen) and Voltaren (diclofenac)—in people with ankylosing spondylitis who were already taking disease-modifying anti-rheumatic drugs (DMARDs). The goal was to see which one worked better for pain relief over 8 w…

Phase 4 • Sponsor: Johnson & Johnson Taiwan Ltd • Aim: Symptom relief

Last updated Jun 27, 2026 13:02 UTC

Ankylosing spondylitis

Where it sits in the disease tree

Pain pill showdown: ultracet vs. voltaren for back inflammation