The American College of Rheumatology, Spondylitis Association of America, and Spondyloarthritis Research and Treatment Network have updated their guidelines on management of ankylosing spondylitis and nonradiographic axial spondyloarthritis.
Dr. Michael M. Ward
These guidelines serve as an update to the previous guidelines that were first published in 2015 (Arthritis Care Res. 2016;68:151–66). While the new guidelines did not review all recommendations from the 2015 guidelines, 20 questions on pharmacologic treatment were re-reviewed in addition to 26 new questions and recommendations.
Michael M. Ward, MD, chief of the Clinical Trials and Outcomes Branch at the National Institute of Arthritis and Musculoskeletal and Skin Diseases, said in an interview that the availability of new medications to treat axial spondyloarthritis (axSpA) prompted the updated guidelines.
“We took the opportunity to revisit some previous recommendations for which substantial new evidence was available, and also included new recommendations on some other topics, such as imaging,” said Dr. Ward, who is also first author of the new guidelines.
The panel that developed the questions focused on scenarios that a clinician would likely encounter in clinical practice, or situations in which how to manage a case is not clear. “Given this perspective, there were many questions that had limited evidence, but recommendations were made for all questions. For those questions that had less evidence in the literature, we relied more on the expertise of the panel,” Dr. Ward said.
The questions and recommendations for ankylosing spondylitis (AS) and nonradiographic axSpA centered around use of interleukin-17 (IL-17) inhibitors, tofacitinib (Xeljanz), and biosimilars of tumor necrosis factor-alpha inhibitors (TNFi), as well as when to taper and discontinue these medications.
Strong recommendations for patients with AS included using NSAIDs (low level of evidence), using TNFi when active disease remains despite NSAID treatment (high level of evidence), and using secukinumab (Cosentyx) or ixekizumab (Taltz) when active disease remains despite NSAID treatment over no treatment (high level of evidence). The guidelines also strongly recommend the use of physical therapy for adults with stable AS over no physical therapy (low level of evidence), as well as total hip arthroplasty in cases of advanced hip arthritis. The writing panel also strongly advised that adults with AS-related comorbidities should receive treatment by an ophthalmologist in cases of acute iritis. Strong recommendations were made against switching to a biosimilar of a TNFi after receiving treatment with an originator TNFi (regardless of whether it is for active or stable AS), use of systemic glucocorticoids in adults with active AS, treatment with spinal manipulation in patients with spinal fusion or advanced spinal osteoporosis, and screening for cardiac conduction defects and valvular heart disease with electrocardiograms.
Strong recommendations for nonradiographic axSpA were similar to those made for patients with AS, and the panel made strong recommendations for use of NSAIDs in patients with active disease; for TNFi treatment when NSAIDs fail; against switching to a biosimilar of a TNFi after starting the originator TNFi; against using systemic glucocorticoids; and in favor of using physical therapy rather than not.
The panel also made a number of conditional recommendations for AS and nonradiographic axSpA patients with regard to biologic preference and imaging. TNFis were conditionally recommended over secukinumab or ixekizumab in patients with active disease despite NSAIDs treatment, and in cases where a patient is not responding to a first TNFi treatment, the panel conditionally recommended secukinumab or ixekizumab over a second TNFi (very low evidence for all). Secukinumab or ixekizumab were also conditionally recommended over tofacitinib (very low evidence). Sulfasalazine, methotrexate, and tofacitinib were conditionally recommended in cases where patients had prominent peripheral arthritis or when TNFis are not available (very low to moderate evidence). The panel recommended against adding sulfasalazine or methotrexate to existing TNFi treatment (very low evidence), and they also advised against tapering as a standard treatment approach or discontinuing the biologic (very low evidence). MRI of the spine or pelvis was conditionally recommended to examine disease activity in unclear cases, but the panel recommended against ordering MRI scans to monitor disease inactivity (very low evidence).
“Most of the recommendations are conditional, primarily because of the relatively low level of evidence in the literature that addressed many of the questions,” while stronger recommendations came from larger clinical trials, Dr. Ward said. “The need for this update demonstrates the rapid progress in treatment that is occurring in axial spondyloarthritis, but the low level of evidence for many questions indicates that much more research is needed.”
Nine authors reported personal and institutional relationships in the form of consultancies, educational advisory board memberships, and site investigator appointments for AbbVie, Amgen, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, Eli Lilly, GlaxoSmithKline, Galapagos, Janssen, Novartis, Pfizer, and UCB. The other authors reported no relevant conflicts of interest.
SOURCE: Ward MM et al. Arthritis Care Res. 2019 Aug 21. doi: 10.1002/acr.24025.