4. Documented treatment with ICS and LABA for at least 3 months prior to Visit 1 with or without oral corticosteroids and additional asthma controllers. The ICS and LABA can be parts of a combination product or given by separate inhalers. The ICS dose must be greater than or equal to 500 μg/day fluticasone propionate dry powder formulation or equivalent daily. For ICS/LABA combination preparations, the mid-strength approved maintenance dose in the local country will meet this ICS criterion.