Incidence of Uveitis in Patients With Axial Spondylarthritis Treated With Biologics or Targeted Synthetics: A Systematic Review and Network Meta‐Analysis

Objective Anterior uveitis is a common extra‐articular manifestation of axial spondyloarthritis (AxSpA). We set to evaluate the risk of anterior uveitis (AU) with biologics and synthetic disease‐modifying drugs in AxSpA. Methods We conducted a systematic review and meta‐analysis to identify phase II/III double‐blinded randomized controlled trials of anti–tumor necrosis factor (TNF) monoclonal antibodies (mAb), anti–interleukin‐17 (anti–IL‐17), and Janus kinase inhibitors (JAKi) in AxSpA. Patient‐exposure years (PEY) were calculated using the per‐protocol approach. Incidence rate (IR) of AU/100 person‐years were calculated by treatment group using the random effects approach. Network meta‐analysis (NMA) was used to estimate risk of AU in treatment groups, expressed as IR ratios (IRRs). Bias was assessed using the Cochrane Risk of Bias‐2 tool. Results Forty‐four trials were included: 17 anti‐TNF mAb (1,004 PEY), 9 etanercept (180 PEY), 13 anti–IL‐17 (1,834 PEY), and 6 JAKi (331 PEY). The IR of AU were as follows for anti‐TNF mAb: 4.1, 95% confidence interval (CI) 0–8.5; etanercept: 5.4, 95% CI 0–16.0; anti–IL‐17: 2.8, 95% CI 1.6–4.1; JAKi: 1.5, 95% CI 0.0–3.0; and placebo: 10.8, 95% CI 7.4–14.1. In NMA, IRRs of treatments compared with placebo were as follows for anti‐TNF mAb: 0.32, 95% CI 0.10–1.04; etanercept 0.42, 95% CI 0.08–2.38; anti–IL‐17: 0.43, 95% CI 0.19–0.98; and JAKi: 0.32, 95% CI 0.06–1.67. Comparisons between anti‐TNF mAb, anti–IL‐17, and JAKi did not demonstrate any significant difference in AU risk. Using the surface under the cumulative ranking curve approach to rank AU risk, anti‐TNF mAbs were associated with the lowest risk followed by JAKi, anti–IL‐17, and etanercept. All treatments were ranked superior to placebo. Conclusion Anti‐TNF mAbs, JAKi, and anti–IL‐17 appear protective against AU events in individuals with AxSpA, with no significant differences in risk of AU between treatments.