Study of the Ease of Use and Correct Use of Placebo ELLIPTA® Inhaler in Subjects With Asthma

The ELLIPTA Dry Powder Inhaler (DPI) is a molded plastic two-sided inhaler that can hold two individual blister strips. Each strip will contain either lactose or a blend of lactose and magnesium stearate. Subjects will receive 1 inhalation once-daily until visit 2.

ELLIPTA Inhaler Ease of Use Questionnaire is a four-point Likert scale. This questionnaire will be filled by investigator (designee) based on responses received from subject. Responses for the questionnaire are Very difficult, Difficult, Easy, Very easy. Subjects will be give either version A or B at Visit 2.