| Recruiting | 2 | 99 | Europe | FMT, Placebo | University Hospital of North Norway, Helse Nord | Axial Spondyloarthritis, Ankylosing Spondylitis, Dysbiosis, Spondyloarthritis, Spondylitis, Arthritis, Musculoskeletal Diseases, Spinal Disease, Joint Diseases | 05/25 | 03/26 | | |