A Long-term Safety Study of Fixed Dose Combination Therapy Fluticasone Furoate/Umeclidinium Bromide/Vilanterol Trifenatate in Japanese Subjects With Asthma

Subjects will self-administer the study treatment via the ELLIPTA device. The ELLIPTA holds 2 individual blister strips with 30 blisters on each strip: the first strip contains FF 100 mcg in each blister and the second strip contains UMEC 62.5 mcg and VI 25 mcg in each blister. ELLIPTA is a registered trademark of GSK groups of companies.

Subjects will self-administer the study treatment via the ELLIPTA device. The ELLIPTA holds 2 individual blister strips with 30 blisters on each strip: the first strip contains FF 200 mcg in each blister and the second strip contains UMEC 62.5 mcg and VI 25 mcg in each blister. ELLIPTA is a registered trademark of GSK groups of companies.

Salbutamol is a rescue medication administered via metered-dose inhaler (MDI) which will be used when needed during the study.

ACQ-7 will be used for the assessment of control status of asthma.