RT Journal Article SR Electronic T1 Endpoints in asthma drug trials - what do they mean? JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 21 OP 24 DO 10.1136/dtb.2006.44321 VO 44 IS 3 YR 2006 UL http://dtb.bmj.com/content/44/3/21.abstract AB There are many potential outcomes or endpoints to choose from to assess the effects of asthma treatments, and a wide range of such measures are used in different trials. This can make it difficult to compare treatment outcomes from different trials and to understand whether new treatments offer a genuine clinical benefit for patients. Here we review the common endpoints used in trials to assess the efficacy of asthma treatments.