Four (4) double-blind, parallel-group clinical trials were conducted with ADVAIR HFA in 1,517 adult and adolescent subjects (aged 12 years and older, mean baseline FEV
Trial 1: Clinical Trial with ADVAIR HFA 45 mcg/21 mcg
This placebo-controlled, 12-week, U.S. trial compared ADVAIR HFA 45 mcg/21 mcg with fluticasone propionate CFC inhalation aerosol 44 mcg or salmeterol CFC inhalation aerosol 21 mcg, each given as 2 inhalations twice daily. The primary efficacy endpoints were predose FEV
Predefined withdrawal criteria for lack of efficacy, an indicator of worsening asthma, were utilized for this placebo-controlled trial. Worsening asthma was defined as a clinically important decrease in FEV
The FEV
Figure 1. Mean Percent Change from Baseline in FEV1 in Subjects Previously Treated with Either Beta

The effect of ADVAIR HFA 45 mcg/21 mcg on the secondary efficacy parameters, including morning and evening PEF, usage of VENTOLIN Inhalation Aerosol, and asthma symptoms over 24 hours on a scale of 0 to 5 is shown in Table 4.
The subjective impact of asthma on subjects’ perception of health was evaluated through use of an instrument called the Asthma Quality of Life Questionnaire (AQLQ) (based on a 7-point scale where 1 = maximum impairment and 7 = none). Subjects receiving ADVAIR HFA 45 mcg/21 mcg had clinically meaningful improvements in overall asthma-specific quality of life as defined by a difference between groups of ≥0.5 points in change from baseline AQLQ scores (difference in AQLQ score of 1.14 [95% CI: 0.85, 1.44] compared with placebo).
Trial 2: Clinical Trial with ADVAIR HFA 45 mcg/21 mcg
This active-controlled, 12-week, U.S. trial compared ADVAIR HFA 45 mcg/21 mcg with fluticasone propionate CFC inhalation aerosol 44 mcg and salmeterol CFC inhalation aerosol 21 mcg, each given as 2 inhalations twice daily, in 283 subjects using as-needed albuterol alone. The primary efficacy endpoint was predose FEV
Efficacy results in this trial were similar to those observed in Trial 1. Subjects receiving ADVAIR HFA 45 mcg/21 mcg had significantly greater improvements in FEV
Trial 3: Clinical Trial with ADVAIR HFA 115 mcg/21 mcg
This placebo-controlled, 12-week, U.S. trial compared ADVAIR HFA 115 mcg/21 mcg with fluticasone propionate CFC inhalation aerosol 110 mcg or salmeterol CFC inhalation aerosol 21 mcg, each given as 2 inhalations twice daily, in 365 subjects using ICS (daily doses of beclomethasone dipropionate 378 to 840 mcg; budesonide 800 to 1,200 mcg; flunisolide 1,250 to 2,000 mcg; fluticasone propionate inhalation aerosol 440 to 660 mcg; fluticasone propionate inhalation powder 400 to 600 mcg; or triamcinolone acetonide 900 to 1,600 mcg). The primary efficacy endpoints were predose FEV
Efficacy results in this trial were similar to those observed in Trials 1 and 2. Subjects receiving ADVAIR HFA 115 mcg/21 mcg had significantly greater improvements in FEV
Trial 4: Clinical Trial with ADVAIR HFA 230 mcg/21 mcg
This active-controlled, 12-week, non-U.S. trial compared ADVAIR HFA 230 mcg/21 mcg with fluticasone propionate CFC inhalation aerosol 220 mcg, each given as 2 inhalations twice daily, and with ADVAIR DISKUS 500 mcg /50 mcg given as 1 inhalation twice daily in 509 subjects using ICS (daily doses of beclomethasone dipropionate CFC inhalation aerosol 1,500 to 2,000 mcg; budesonide 1,500 to 2,000 mcg; flunisolide 1,500 to 2,000 mcg; fluticasone propionate inhalation aerosol 660 to 880 mcg; or fluticasone propionate inhalation powder 750 to 1,000 mcg). The primary efficacy endpoint was morning PEF.
Baseline morning PEF measurements were similar across treatments: ADVAIR HFA 230 mcg/21 mcg, 327 L/min; ADVAIR DISKUS 500 mcg/50 mcg, 341 L/min; and fluticasone propionate 220 mcg, 345 L/min. As shown in Figure 2, morning PEF improved significantly with ADVAIR HFA 230 mcg/21 mcg compared with fluticasone propionate 220 mcg over the 12-week treatment period. Improvements in morning PEF observed with ADVAIR HFA 230 mcg/21 mcg were similar to improvements observed with ADVAIR DISKUS 500 mcg/50 mcg.
Figure 2. Mean Percent Change from Baseline in Morning Peak Expiratory Flow in Subjects Previously Treated with Inhaled Corticosteroids (Trial 4)
