Conditions: Asthma
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 313
Healthy volunteers: no

Brief summary:
A randomised, double-blind, double-dummy, parallel group study to evaluate the efficacy and safety of fluticasone furoate/vilanterol trifenatate (FF/VI) inhalation powder delivered once daily in the treatment of asthma in adolescent and adult subjects of Asian ancestry currently treated with high-strength inhaled corticosteroids or mid-strength ICS/LABA combination therapy

Detailed description:
This will be a randomized, double-blind, active-comparator, parallel group, multi-center study. At Visit 1 (Screening Visit) subjects who meet all of the inclusion criteria and none of the exclusion criteria will enter a two week Run-in period. Subjects will remain on their current ICS therapy throughout the Run-in period. At the end of the Run-in period (Visit 2) subjects meeting the randomization criteria will enter a 12 week treatment period and receive one of the two following treatments: 1) FF (200mcg)/VI (25mcg) administered once daily in the evening via a Novel Dry Powder Inhaler (NDPI) 2) Fluticasone propionate 500mcg administered twice daily via DISKUS™ Inhaler In addition, all subjects will be supplied with albuterol/salbutamol inhalation aerosol to be used as required to treat asthma symptoms.

Subjects who have not met the randomization criteria at Visit 2 will be withdrawn from the study.

Subjects meeting the randomization criteria will be randomized to one of the two treatment groups and will attend the clinic for 3 on-treatment visits at Week 4 (Visit 3), Week 8 (Visit 4) and Week 12 (Visit 5). Subjects will receive treatment for 12 weeks. A Follow-up Visit or Contact (Visit 6) will take place 1 week after completing study medication. All clinic visits will take place in the morning. Subjects will participate in the study for a maximum of 15 weeks (Screening to Follow-up inclusive). A subject is regarded to have completed the study if they complete all phase of the study (Screening, treatment, Follow-up).

Arms:
arm 1: ICS/LABA arm 2: ICS

Interventions: intervention 1: GW685698/GW642444 intervention 2: CCI18781
Intervention descriptions: intervention 1: ICS/LABA intervention 2: ICS

Protocol document: