Buparid/PARI SINUS Versus Budes Nasal Spray in the Therapy of Chronic Rhinosinusitis With Polyposis Nasi

The study should create data for the selection of a clinically relevant primary endpoint to assess the efficacy and safety of Buparid/PARI SINUS as compared to Budes Nasal Spray in the therapy of chronic rhinosinusitis (CRS) with polyposis nasi in adult patients. Ideally, the selected parameter should allow a correlation between an objective methodology and the clinical outcome of the study patients.