BDP

The primary efficacy variable was the standardized baseline-adjusted trough morning (pre-dose and pre-rescue bronchodilator) FEV1 AUEC(0-12wk). Pulmonary function measurements such as FEV1 were obtained electronically by spirometry at the randomization visit (Day 1), each treatment visit (Weeks 2, 4, 8 and 12) and any unscheduled visit (such as the early termination visit). This summary is based on observed values recorded as 'best attempt'. The least-square (LS) means, difference of LS means and its 95% confidence interval (CI), and p-value represent the results obtained from the analysis of covariance with covariate adjustment for baseline, sex, age, current asthma therapy, and treatment.

Trough morning FEV1 measurements were taken pre-dose and pre-rescue bronchodilator treatment for asthma. The baseline pulmonary function measurement was defined as the measurement obtained at randomization visit (Day 1). Pulmonary function measurements (including FEV1) were obtained electronically by spirometry. All pulmonary function test data were submitted to a central reading center for evaluation. The highest FEV1 value from 3 acceptable and 2 repeatable maneuvers (maximum of 5 attempts) was used. Baseline-adjusted FEV1 AUEC(0-12wk) were calculated using the trapezoidal rule. The standardized baseline-adjusted FEV1 AUEC(0-12 wk) accommodates participants who dropped out of the study. Baseline-adjusted FEV1 AUEC(0-t weeks)/t, where t =12 weeks for patients who complete the FEV1 assessment at Week 12. For participants who dropped out early, t \<12 weeks (2, 4, or 8 weeks).

Trough morning FEV1 measurements were taken pre-dose and pre-rescue bronchodilator treatment for asthma. Baseline was defined as baseline trough morning percent predicted FEV1. Pulmonary function measurements (including FEV1) were obtained electronically by spirometry. All pulmonary function test data were submitted to a central reading center for evaluation. The highest ('best attempt') FEV1 value from 3 acceptable and 2 repeatable maneuvers (maximum of 8 attempts) was used.

Reflective TNSS is an evaluation of symptom severity over the past 12 hours prior to the recording of the score. Participants (with assistance from parents/guardians/caregivers, as needed) assessed and recorded four nasal symptoms (runny nose, nasal congestion, nasal itching, and sneezing) twice daily (AM and PM) using the following scale: * 0 = absent (no sign/symptom present) * 1 = mild (sign/symptom clearly present, but minimal awareness; easily tolerated) * 2 = moderate (definite awareness of sign/symptom that is bothersome but tolerable) * 3 = severe (sign/symptom that is hard to tolerate; causes interference with activities of daily living and/or sleeping) The total TNSS scale was 0-12 with 0 representing an absence of symptoms and higher scores reflecting more severe symptoms. Baseline and the during study rTNSS values were defined as the average AM and PM subject-reported rTNSS during each time period.

The serum cortisol weighted mean (0-t), calculated by dividing the area under the concentration-time curve (AUC) from time zero to the time of the last measurable value over the 24-hour period by the sample collection time interval, was determined for each participant at baseline and Week 6, and the ratio of Week 6 over baseline was derived.

Geometric mean serum cortisol weighted mean values were calculated at baseline and after 6 weeks (42 days) of treatment. The geometric mean ratio of week 6 / baseline is reported. The primary outcome compares the BDP HFA and Placebo treatment arms. The comparison of active control (Placebo/Prednisone) and Placebo treatment arms is an "other pre-specified" outcome.

Participants recorded the severity of their nasal symptoms (sneezing, runny nose, nasal itching and nasal congestion) over the past 12 hours (prior to the assessment) twice daily (AM and PM) using the following scale: 0=absent (no sign/symptom present); 1=mild (sign/symptom present, easily tolerated); 2=moderate (definite awareness of sign/symptom, bothersome but tolerable); 3=severe (hard to tolerate, interfere with daily activities and/or sleeping). The rTNSS (sum of 4 symptom scores) ranges from 0 to 12 (worst symptoms). A negative change from baseline score indicates symptom improvement.

Participants recorded the severity of their nasal symptoms (sneezing, runny nose, itchy nose and nasal congestion) in the past 24-hours (prior to the assessment) daily using the following scale: 0=absent (no sign/symptom); 1=mild (sign/symptom present, easily tolerated); 2=moderate (bothersome but tolerable); 3=severe (hard to tolerate, interfere with daily activities). The total nasal symptom score (sum of 4 symptom scores) ranges from 0 to 12 (worst symptoms). A negative change from baseline score indicates improvement.