Journal of Allergy and Clinical Immunology Global · Published 2026-06-01 · DOI 10.1016/j.jacig.2026.100740
Salman Siddiqui, Bo Ding, Paul Dolin, Chris Edmonds, Priya Jain, Jennifer Rowell, Lotte Westerink, Alessandra Lacetera, Pablo Suárez-Sánchez, Cono Ariti, Bélène Podmore, Alvaro Kitchin Velarde, Stephanie Y. Chen
Background: Data on the clinical burden of eosinophilic granulomatosis with polyangiitis (EGPA) are limited. Objective: We sought to evaluate the epidemiology and clinical burden of EGPA in England using real-world evidence. Methods: Patients diagnosed with EGPA between January 1, 2006, and February 28, 2019, who had ≥1 year of data before diagnosis (index date) were identified using the Clinical Practice Research Datalink Aurum database. Epidemiology, diagnosis, mortality, treatment, and clinical outcomes were assessed. Results: The incident and prevalent EGPA cohorts comprised 486 and 729 patients, respectively. The overall incidence and prevalence of EGPA were 3.04 (95% CI: 2.77-3.32) cases per million person-years and 2.7 (95% CI: 2.5-2.9) cases per 100,000 persons, respectively. Overall, 76.3% and 26.1% of patients had a Five Factor Score of 0 on the 1996 and 2009 versions. In the incident cohort (mean age 57.9 ± 15.2 years), most patients (97.1%) had ≥1 comorbidity; 79.8% had asthma coded. The median time from first major manifestation to EGPA diagnosis was 44.0 (Q1-Q3: 20.0-56.0) months. The death rate was 37.1 per 1000 person-years (95% CI: 30.1-45.2); the standardized mortality ratio for all-cause deaths was 2.3 (95% CI: 1.9-2.8). The 5-year survival rate was 82.3% (95% CI: 78.1%-85.7%). Most patients (86.2%) received oral glucocorticoids, of whom 27.0% successfully tapered. Six months post index date, 26.1% of patients had a new EGPA manifestation. Conclusion: This study emphasizes the substantial clinical burden and reliance on glucocorticoids in EGPA, highlighting the need for improved diagnosis of this disorder.
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Siddiqui, S., Ding, B., Dolin, P., et al. (2026). Epidemiology, clinical management, and outcomes in patients with eosinophilic granulomatosis with polyangiitis in England: A retrospective observational cohort study. Journal of Allergy and Clinical Immunology Global. https://doi.org/10.1016/j.jacig.2026.100740