The purpose of the study was to assess the clinical effect of QAW039 in non-atopic asthmatics taking low dose Inhaled Corticosteroid (ICS) as background therapy.
This was a multi-centre, randomised, placebo-controlled, double blind, 3-arm study designed to compare the efficacy and safety of a once daily dose of QAW039 with placebo in non-atopic and atopic asthmatics both inadequately controlled despite receiving a low dose ICS background therapy, over a 12 week treatment period. Efficacy and safety of a once daily dose of QAW039 was also compared with an increased dose of ICS in atopic asthmatics taking low dose ICS as background therapy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
345
QAW039 supplied as hard gelatin capsule in unit dose strength of 150 mg. Patient took 450 mg once daily (3 capsules taken with food in the morning) for the approximate period of the study (12 weeks)
Matching placebo for QAW039 supplied as hard gelatin capsule were identical in appearance to their active counterparts. Patients took 3 QAW039 matching placebo capsules once a day ( taken with food in the morning) for the approximate period of the study (12 weeks)
Fluticasone was supplied in inhalers with dose strength of 250 mcg. Patients took 250 mcg bid (morning and evening approximately 12 hours between doses) for a total dose of 500 mcg daily for the approximate period of the study (12 weeks).
Change From Baseline in Trough FEV1 (L) in Non-atopic Patients at Week 12 - Full Analysis Set
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.
Time frame: baseline,12 weeks
Change From Baseline in Trough FEV1 (L) in Atopic Patients at Week 12 - Full Analysis Set
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 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.
Time frame: baseline,12 weeks
Change From Baseline in Trough FEV1 (L) in Non-atopic Compared to Atopic Patients at Week 12 - Full Analysis Set
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 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, 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.
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Background therapy - fluticasone was supplied in inhalers with dose strength of 100 mcg. All patients in the study other than the Atopic Fluticasone 150 mcg arm were given the 100 mcg dose strength inhalers and took fluticasone 100 mcg bid (taken morning and evening with approximately 12 hours between doses) as background therapy for the approximate period of the study (12 weeks).
Novartis Investigative Site
Encinitas, California, United States
Novartis Investigative Site
Huntington Beach, California, United States
Novartis Investigative Site
Los Angeles, California, United States
Novartis Investigative Site
Los Angeles, California, United States
Novartis Investigative Site
Mission Viejo, California, United States
Novartis Investigative Site
Orange, California, United States
Novartis Investigative Site
Palmdale, California, United States
Novartis Investigative Site
Riverside, California, United States
Novartis Investigative Site
Rolling Hills Estates, California, United States
Novartis Investigative Site
San Diego, California, United States
...and 66 more locations
Time frame: baseline,12 weeks
Change From Baseline in ACQ-6 Score at Week 12 Non-atopic and Atopic Patients at Week 12 - Full Analysis Set
ACQ-6 consists of:5 items on symptoms, 1 item on rescue bronchodilator use, and 1 item on airway caliber (FEV1 % predicted). The ACQ was fully validated, including a minimal important difference (MID) or smallest change that could be considered clinically important (0.5). The ACQ was self-administered at the clinic and patients scored each item on a 7-point response scale: 0 = 'totally controlled' and 6 = 'severely uncontrolled.' Study staff scored question 7 based on % predicted FEV1 (ideally pre-bronchodilator). The total score=average of first 6 questions. Baseline=the ACQ-6 measurement taken prior to first dose of randomized study drug. The single missing score was interpolated by utilizing prior or subsequent completions of the questionnaire. Estimates were from a mixed effects model with treatment, subject population (non-atopic vs. atopic), treatment by subject population interaction, baseline ACQ-6 and region as fixed effects and center nested within region as random effects.
Time frame: baseline,12 weeks
Change From Baseline in ACQ-6 Score at Week 12 Non-atopic Compared to Atopic Patients at Week 12 - Full Analysis Set
ACQ-6 consists of:5 items on symptoms, 1 item on rescue bronchodilator use, and 1 item on airway caliber (FEV1 % predicted). The ACQ was fully validated, including a minimal important difference (MID) or smallest change that could be considered clinically important (0.5). The ACQ was self-administered at the clinic and patients scored each item on a 7-point response scale: 0 = 'totally controlled' and 6 = 'severely uncontrolled.' Study staff scored question 7 based on % predicted FEV1 (ideally pre-bronchodilator). The total score=average of first 6 questions. Baseline=the ACQ-6 measurement taken prior to first dose of randomized study drug. The single missing score was interpolated by utilizing prior or subsequent completions of the questionnaire. Estimates were from a mixed effects model with treatment, subject population (non-atopic vs. atopic), treatment by subject population interaction, baseline ACQ-6 and region as fixed effects and center nested within region as random effects.
Time frame: baseline,12 weeks