• Fulvio Braido, Angelica Tiotiu, Krzysztof Kowal, Stefan Mihaicuta, Plamena Novakova, and Ipek Kivilcim Oguzulgen.
• Respiratory and Allergy Department, University of Genoa, Ospedale Policlinico San Martino, Genoa, Italy.
• Curr Opin Allergy Clin Immunol. 2018 Jun 1; 18 (3): 184-189.

Purpose Of ReviewTarget therapy is the necessary step towards personalized medicine. The definition of asthma phenotypes and underlying mechanisms (endotypes) represent a key point in the development of new asthma treatments. Big data analysis, biomarker research and the availability of monoclonal antibodies, targeting specific cytokines is leading to the rapid evolution of knowledge. In this review, we sought to outline many of the recent advances in the field.Recent FindingsSeveral attempts have been made to identify asthma phenotypes, sometimes with contrasting results. More success has been obtained concerning the pathogenetic mechanism of specific asthma patterns with the consequent identification of biomarkers and development of effective ad hoc treatment.SummaryWe are in the middle of an extraordinary revolution of our mode of thinking about and approaching asthma. All the effort in the identification of clusters of patients with different disease clinical patterns, prognosis and response to treatment is closely linked to the identification of endotypes (Th2-low and Th2-high). This approach has allowed the development of the specific treatments (anti IgE, Anti IL5 and IL5R) that are now available and is leading to new ones.

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