Abstract

Chronic rhinosinusitis with nasal polyps (CRSwNP) is atype‑2 inflammatory disease of the upper airways, with severe impairment of quality of life. Persons affected by NSAID-exacerbated respiratory disease (NERD) usually present with highly dynamic recurrence of polyps and disease despite prior treatment with sinus surgeries, oral corticosteroids, and aspirin desensitization (ATAD). Biologic therapy has fundamentally changed the choice of therapeutic concept; however, limited data exist on subgroups such as NERD patients. The aim of the current article is to report on amulticenter retrospective study on add-on therapy with dupilumab, omalizumab, and mepolizumab in patients with NERD. This is aretrospective cohort study of patients (NERD+, status after ATAD) in three reference centers in Germany (Munich, Mainz, Berlin). Subjective and objective parameters were collected at 4, 8, and 12months after biologic therapy initiation in accordance with current EPOS/EUFOREA (European Position Paper on Rhinosinusitis and Nasal Polyps/European Forum for Research and Education in Allergy and Airway Diseases) guidelines. Biologic agents were chosen depending on availability and patient characteristics. Treatment was commenced in 122patients meeting the criteria for CRSwNP and NERD. The endoscopic polyp score, SNOT-22 questionnaire score, visual analogue scoring of total symptoms/severity of disease, and sense of smell (psychophysical testing with Sniffin'Sticks/Brief Smell Identification Test, B‑SIT; Sensonics, Inc., Haddon Heights, NJ, USA) improved significantly after 4 and 12months of add-on therapy (p < 0.0001). All three biologic agents significantly improved one or more disease parameter. Adverse events were not life threatening but led to change of biologic agent in 4cases. Patients rated biologic therapy significantly better than ATAD, with improved long-term disease control. Add-on biologic therapy is effective, safe, and widely accepted among CRSwNP + NERD patients. Future studies might allow for personalized algorithms with sequential surgery, ATAD, and/or biologic therapy.

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