QAW039

Forced Expiratory Volume in one second (FEV1) is calculated as the volume of air forcibly exhaled in one second as measured by a spirometer. Baseline is defined as the last available FEV1 measurement taken prior to the first dose of randomized study drug.

Forced Expiratory Volume in one second (FEV1) is calculated as the volume of air forcibly exhaled in one second as measured by a spirometer. Baseline is defined as the last available FEV1 measurement taken prior to the first dose of randomized study drug.

A severe asthma exacerbation is defined as treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days and hospitalization; or treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days and emergency department visit (greater than 24 hours\*); or death due to asthma. A moderate asthma exacerbation is defined as treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days either as an outpatient or in emergency department visits (Emergency department visit less than or equal to 24 hours). The high eosinophils subpopulation consists of all patients with blood eosinophil count ≥ 250 cells/μL at baseline.

A severe asthma exacerbation is defined as treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days and hospitalization; or treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days and emergency department visit (greater than 24 hours\*); or death due to asthma. A moderate asthma exacerbation is defined as treatment with 'rescue' systemic corticosteroids for greater than or equal to 3 days either as an outpatient or in emergency department visits (Emergency department visit less than or equal to 24 hours).

Investigators assessed presence and severity of erythema, induration/papulation, excoriation, and lichenification in four body areas: head/neck (H), upper limbs (UL), trunk (T), and lower limbs (LL). Investigators assigned a severity score from 0 - 3 for each area (none=0, mild=1, moderate=2, and severe=3). Investigators could assign half-points. Investigators also assigned an area score from 0 (no atopic dermatitis lesion in the area) to 6 (entire area is affected) for each area. The weighting factor was 0.1 for head/neck, 0.2 for upper limbs, 0.3 for trunk, and 0.4 for lower limbs. The total body score for each body region was obtained by multiplying the sum of the severity scores of the four key signs by the area score, then multiplying the result by the constant weighted value assigned to that body region. The sum of these scores gave the EASI total, ranging from 0 to 72. A higher score represented greater disease severity. A negative change from baseline indicates improvement.

Forced Expiratory Volume in one second (FEV1) is calculated as the volume of air forcibly exhaled in one second as measured by a spirometer. Baseline is defined as the last available FEV1 measurement taken prior to the first dose of randomized study drug. Data within 6 hr of rescue medication use is excluded from this analysis. For subjects with missing trough FEV1 (L) at Week 12, the last post baseline observation were used (LOCF). Estimates are from a mixed effects model with treatment, subject population (non-atopic vs. atopic), treatment by subject population interaction, baseline trough FEV1 and region as fixed effects and center nested within region as random effects. Full analysis set included all randomized subjects who received at least one dose of study drug.

Total Nasal Symptom Score (TNSS) averaged over the last two hours (2-4h) of exposure following 14 days treatment with QAW039 and/or Montelukast or matched placebo

Sputum induction is performed through the inhalation of hypertonic saline. Sputum is collected and assessed for differential cellular content (absolute numbers and percentages). The primary variable will be summarized by treatment and analyzed using an ANCOVA model with treatment as the fixed effect and the respective baseline value as the covariate.

Forced Expiratory Volume in 1 second (FEV1) (measured in litters), and the trough measurement is taken 24 hours after morning dose on the previous day.

AUClast is the area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration

AUCinf is the area under the plasma concentration-time curve from time zero to infinity

Cmax is the observed maximum plasma concentration following drug administration

AUC0-68h is the area under the plasma concentration from time zero to time 68 hours of the last measured concentration above the limit of quantification after dosing