Tiotropium for Smoking Asthmatics Study

The study's research questions concern the appropriateness of use of tiotropium for patients with asthma who are current smokers. It is suggested that patients with asthma who smoke, may in fact share similarities with patients with chronic obstructive pulmonary disease (COPD). Because of this, the study will determine whether this sub-group of patients would in fact benefit from therapy currently approved and marketed for COPD patients.