No Asthma Increase with LABA/ICS Combination: FDA
FDA says its review of four large clinical safety trials shows that treating asthma with long-acting beta agonists (LABAs) in combination with inhaled corticosteroids (ICS) does not result in significantly more serious asthma-related side effects than treatment with ICS alone. A drug safety communication says that in 2011 the agency required drug companies marketing LABAs to conduct trials to evaluate their safety when used in combination with ICS.
Based on the agency review of those trial results, FDA has removed a Boxed Warning about asthma-related death from the drug labels of medicines that contain both an ICS and a LABA. A description of the four trials has been added to the Warnings and Precautions section of the labels.
“Using LABAs alone to treat asthma without an ICS to treat lung inflammation is associated with an increased risk of asthma-related death,” FDA says. “Therefore, the Boxed Warning stating this will remain in the labels of all single-ingredient LABA medicines, which are approved to treat asthma, chronic obstructive pulmonary disease, and wheezing caused by exercise. The labels of medicines that contain both an ICS and LABA also retain a Warning and Precaution related to the increased risk of asthma-related death when LABAs are used without an ICS to treat asthma.”