<qa>  What is the cornerstone of asthma management?Control of airway inflammation is the cornerstone of asthma management. The aim of the present pilot study was to assess whether, and in which magnitude, a leukotriene receptor antagonist LTRA added to a basic treatment of inhaled corticosteroids ICS long-acting betamimetics LABA might improve airway hyperresponsiveness and inflammation in well-controlled patients with asthma. 