Follow-up of Spanish Prospective Asthma and Nasal Polyposis Registry

Primary objective \- To study the stability of different phenotypes and endotypes of asthma at 3, 5, and 7 years of follow-up and - in MEGA COHORT and in patients on biologic treatment Secondary objective(s) * To study biomarkers variation post-treatment in patients with and without Nasal Polyposis * To demonstrate the existence of different subtypes of eosinophils that may be phenotypically and functionally heterogeneous * To increase the number of patients in the cohort on biologic treatment to reach at least 900 (400 over the current cohort).