Using oral/parenteral or depot corticosteroids within 12 weeks of visit 1.

History of heavy smoking or substance abuse.

Females who are pregnant or lactating.

Required emergency room treatment for their asthma 12 weeks prior to Visit 1.

Serious, uncontrolled, systemic disease that may make study participation unsafe or inappropriate in the opinion of the physician.

Other medical criteria will be evaluated at the screening visit.

Study In Asthma Control