The aim of this trial is to evaluate the efficacy and safety of 2.5 and 5 mcg tiotropium over a 24-week treatment period as compared to placebo and salmeterol (50 mcg twice daily). Tiotropium inhalation solution delivered by the Respimat® inhaler will be examined on top of maintenance treatment with inhaled corticosteroid controller medication in patients with moderate persistent asthma. Efficacy and safety will be assessed by measuring effects on lung function, effects on asthma exacerbations, effects on quality of life, effects on asthma control, effects on health care resource utilisation, and number of adverse events.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
1,071
Placebo that represents comparator
Placebo that represents comparator
Placebo that represents comparator
Active comparator
Placebo that represents BI drug
Placebo that represents BI drug
205.418.01020 Boehringer Ingelheim Investigational Site
Huntington Beach, California, United States
205.418.01002 Boehringer Ingelheim Investigational Site
Mission Viejo, California, United States
205.418.01014 Boehringer Ingelheim Investigational Site
San Diego, California, United States
205.418.01011 Boehringer Ingelheim Investigational Site
Wheat Ridge, Colorado, United States
205.418.01004 Boehringer Ingelheim Investigational Site
Coeur d'Alene, Idaho, United States
Peak FEV1 Within 3 Hours Post-dose Response
Peak forced expiratory volume in one second (FEV1) response within 3 hours post-dose determined at the end of the 24-week treatment. Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2). Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
Trough FEV1 Response
Trough FEV1 response determined at the end of the 24-week treatment. Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2). Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
The Responder Rate as Assessed by the ACQ From the Two Twin Trials 205.419 (NCT01172821) and the Present 205.418 (NCT01172808)
The responder rate as assessed by the Asthma Control Questionnaire (ACQ) determined at the end of the 24-week treatment period (on combined data from the two twin trials 205.418 (NCT01172808) and 205.419 (NCT01172821)). A patient was considered to be a responder if he or she was reported with an improvement (decrease) in the ACQ total score of at least 0.5 points. The ACQ total score was calculated as the mean of the responses to 7 questions and was analysed as an absolute value. The score ranges from 0 (no impairment) to 6 (maximum impairment).
Time frame: 24 weeks
Peak FVC Within 3 Hours Post-dose Response
Peak forced vital capacity (FVC) response within 3 hours post-dose determined at the end of the 24-week treatment. Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2). Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
Trough FVC Response
Trough FVC response determined at the end of the 24-week treatment. Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2). Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
FEV1 Area Under Curve 0-3 Hours (AUC0-3h) Response
Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2) determined at the end of the 24-week treatment. Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week. FEV1 AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.
Time frame: 24 weeks
FVC Area Under Curve 0-3 Hours (AUC0-3h) Response
Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2) determined at the end of the 24-week treatment. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week. FVC AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.
Time frame: 24 weeks
Trough PEF Response
Trough peak expiratory flow (PEF) response determined at the end of the 24-week treatment. Response was defined as change from baseline (10 minutes before the first dose of trial medication at visit 2). Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
Total Asthma Quality of Life Questionnaire (AQLQs)) Score
Total score from the Standardised Asthma Quality of Life Questionnaire (AQLQ(s)) determined at the end of 24-week treatment. The AQLQ(s) contains 32 questions, each question has a 7 point scale from 1 (highest intensity) till 7 (no symptoms). Total score was defined as the sum of all items divided by the number of items. Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
Total Asthma Control Questionnaire (ACQ) Score at the End of the 24-week Treatment Period
Control of asthma as assessed by the ACQ determined at the end of 24-week treatment. The ACQ contains 7 questions, each question has a 7 point scale from 0 (no symptoms) till 6 (highest intensity). Total score was defined as the sum of all items divided by the number of items. Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: 24 weeks
The Responder Rate as Assessed by the ACQ
The responder rate as assessed by the Asthma Control Questionnaire (ACQ) determined at the end of the 24-week treatment period. A patient was considered to be a responder if he or she was reported with an improvement (decrease) in ACQ total score of at least 0.5 points. The ACQ total score was calculated as the mean of the responses to 7 questions and was analysed as an absolute value. The score ranges from 0 (no impairment) to 6 (maximum impairment).
Time frame: 24 weeks
Mean Pre-dose Morning PEF (PEF a.m.) Based on the Weekly Mean Response at Week 24
Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: Baseline and last 7 days before week 24 visit
Mean Pre-dose Evening PEF (PEF p.m.) Based on the Weekly Mean Response at Week 24
Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: Baseline and last 7 days before week 24 visit
PEF Variability
PEF daily variability was assesed by patients at home using the AM3 device. PEF variability is the absolute difference between morning and evening PEF value divided by their mean, based on the weekly mean response at week 24. Means are adjusted for treatment, centre, week, baseline, treatment by week, and baseline by week.
Time frame: Last 7 days before week 24 visit
Mean Pre-dose Morning FEV1 (FEV1 a.m.) Based on the Weekly Mean Response at Week 24
Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: Baseline and last 7 days before week 24 visit
Mean Pre-dose Evening FEV1 (FEV1 p.m.) Based on the Weekly Mean Response at Week 24
Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: Baseline and last 7 days before week 24 visit
Mean Number of Puffs of Rescue Medication During the Entire 24-h Day Based on the Weekly Mean Response at Week 24
Daily use of salbutamol (albuterol) rescue medication as needed during the entire study period. Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week.
Time frame: Baseline and last 7 days before week 24 visit
Asthma Symptom-free Days Based on the Weekly Mean Response at Week 24
Weekly means obtained during the last 7 days before week 24 measured by patients at home using the AM3 device. Response was defined as change from baseline. Means are adjusted for treatment, country, week, baseline, treatment by week, and baseline by week. An asthma symptom-free day was defined as a day with no reported symptoms and no use of rescue medication.
Time frame: Baseline and last 7 days before week 24 visit
Time to First Severe Asthma Exacerbation From the Two Twin Trials 205.419 (NCT01172821) and the Present 205.418 (NCT01172808)
Time to first severe asthma exacerbation during the 24-week treatment period on combined data from the two twin trials 205.418 (NCT01172808) and 205.419 (NCT01172821).
Time frame: 24 weeks
Time to First Asthma Exacerbation From the Two Twin Trials 205.419 (NCT01172821) and the Present 205.418 (NCT01172808)
Time to first asthma exacerbation (including severe, non-severe; symptomatic, asymptomatic; i.e. any exacerbation) during the 24-week treatment period on combined data from the two twin trials 205.418 (NCT01172808) and 205.419 (NCT01172821)
Time frame: 24 weeks
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205.418.01017 Boehringer Ingelheim Investigational Site
Normal, Illinois, United States
205.418.01008 Boehringer Ingelheim Investigational Site
South Bend, Indiana, United States
205.418.01012 Boehringer Ingelheim Investigational Site
Baltimore, Maryland, United States
205.418.01013 Boehringer Ingelheim Investigational Site
North Dartmouth, Massachusetts, United States
205.418.01015 Boehringer Ingelheim Investigational Site
North Dartmouth, Massachusetts, United States
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