Effects of montelukast and beclomethasone on airway function and asthma control.

Background: Maintaining asthma control is a major objective of therapy. Traditionally, the effectiveness of asthma therapy has been judged primarily by its effect on airway function rather than on multiaspect asthma control.

Objective: An inhaled corticosteroid and a leukotriene receptor antagonist were compared to determine whether they provided equivalent effects, as judged by days of asthma control.