This endpoint reflects changes in lung function data (forced expiratory volume in 1 second) measured across 0 to 60 minutes post-dose (at 0, 5, 15, 30 and 60 minutes) and averaged across study visits in the Treatment Period (Day 1, Week 1, Week 4, Week 8 and Week 12) compared to Baseline. Baseline was the average of % predicted FEV1 values at 30 min and 0 min pre-dose. At each visit, the area under the curve is calculated over the post-dose timepoints. Units are standardized to percent predicted FEV1 by dividing the AUC calculation by the duration of the observed AUC.

All participants who received at least one dose of randomized trial medication with at least one primary efficacy evaluation.

An Adverse Event (AE) is defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition temporally associated with the use of the Sponsor's product, is also an AE.

All randomized participants who received at least one dose of trial medication.

An Adverse Event (AE) is defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition temporally associated with the use of the Sponsor's product, is also an AE.

All randomized participants who received at least one dose of trial medication

The key secondary objective was to determine the onset of action for the efficacy of MF/F MDI 100/10 mcg BID, compared with MF MDI 100 mcg BID. The post-dose AM % predicted FEV1 was averaged sequentially, and the change from baseline on Day 1 was assessed. This key secondary endpoint was controlled for multiplicity in a step-down fashion, based on trial success defined as a statistically significant improvement in the primary endpoint for MF/F vs MF. Missing data were imputed using control-based multiple imputations with the cLDA model.

All participants who received at least one dose of randomized trial medication with at least one efficacy evaluation

This endpoint reflects changes in lung function data (forced expiratory volume in 1 second) measured across 0 to 4 hours post-dose on Day 1 and Week 12 compared to Baseline. Baseline was the average of 30 and 0 minutes pre-dose % predicted FEV1 values. The AUC was calculated over the scheduled timepoints of 0 min, 5 min, 15 min, 30 min, 60 min, 2 hr and 4 hr post-dose. Units are standardized to percent predicted FEV1 by dividing the AUC calculation by the duration of the observed AUC.

All participants who received at least one dose of randomized trial medication with at least one efficacy evaluation.

The change from baseline in AM pre-dose % predicted FEV1 with MF/F MDI 100/10 mcg BID vs MF MDI 100 mcg BID averaged over 12 weeks treatment was assessed. This secondary analysis of the change from baseline used the cLDA method without multiple imputation. A model-based MAR approach was used for missing data.

All participants who received at least one dose of randomized trial medication with at least one efficacy evaluation across the treatment period.

To evaluate the efficacy of MF/F MDI 100/10 mcg BID compared with MF MDI 100 mcg BID, the change from baseline in total daily short-acting beta-agonist (SABA) use (puffs per day) was averaged and assessed. All participants received SABA MDIs (albuterol 90 mcg or salbutamol 100 mcg) for as-needed relief of asthma symptoms. This secondary analysis of the change from baseline used the cLDA method without multiple imputation.A model-based MAR approach was used for missing data.

All participants who received at least one dose of randomized trial medication with at least one efficacy evaluation

To evaluate the efficacy of MF/F MDI 100/10 mcg BID compared with MF MDI 100 mcg BID, the number of participants using SABA rescue medication in Weeks 1-12 (individually) of the double-blind treatment period was assessed. All participants received SABA MDIs (albuterol 90 mcg or salbutamol 100 mcg) for as-needed relief of asthma symptoms.

Data were provided for all participants who received at least one dose of randomized trial medication and had at least one efficacy evaluation.

To evaluate the efficacy of MF/F MDI 100/10 mcg BID compared with MF MDI 100 mcg BID, the number of participants whose use of SABA rescue medication increased in Weeks 1-12 (individually) of the double-blind treatment period was assessed. All participants received SABA MDIs (albuterol 90 mcg or salbutamol 100 mcg) for relief of asthma symptoms.

Data were provided for all participants who received at least one dose of randomized trial medication and had at least one efficacy evaluation.

Blood samples were collected predose, and 0.75, 1.5, 3, 8, and 12 hours postdose at Week 12 in a subset of participants who consented to take part in a PK sub-trial. Per protocol, descriptive MF pharmacokinetics were summarized without regard to treatment assignment.

Participants who consented to take part in the PK sub-trial and had evaluable data for AUC(0-12).

Blood samples were collected predose, and 0.75, 1.5, 3, 8, and 12 hours postdose at Week 12 in a subset of participants who consented to take part in a PK sub-trial. Per protocol, descriptive MF pharmacokinetics were summarized without regard to treatment assignment.

Participants who consented to take part in the PK sub-trial and had evaluable data for AUC(0-last).

Blood samples were collected predose, and 0.75, 1.5, 3, 8, and 12 hours postdose at Week 12 in a subset of participants who consented to take part in a PK sub-trial. Per protocol, descriptive MF pharmacokinetics were summarized without regard to treatment assignment.

Participants who consented to take part in the PK sub-trial and had evaluable data for Cmax.

Blood samples were collected predose, and 0.75, 1.5, 3, 8, and 12 hours postdose at Week 12 in a subset of participants who consented to take part in a PK sub-trial. Per protocol, descriptive MF pharmacokinetics were summarized without regard to treatment assignment.

Participants who consented to take part in the PK sub-trial and had evaluable data for Tmax.