Evaluation of Tiotropium 2.5 and 5 mcg Once Daily Delivered Via the Respimat® Inhaler Compared to Placebo and Salmeterol HydroFluoroAlkane (HFA) Metered Dose Inhaler (MDI) (50 mcg Twice Daily) in Patient With Moderate Persistent Asthma I

Study Overview
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Brief Summary
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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.

Official Title
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A Phase III Randomised, Double-blind, Placebo-controlled, Parallel-group Trial to Evaluate Efficacy and Safety of Tiotropium Inhalation Solution Delivered Via Respimat® Inhaler (2.5 and 5 µg Once Daily) Compared With Placebo and Salmeterol HFA MDI (50 µg Twice Daily) Over 24 Weeks in Moderate Persistent Asthma

Conditions
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Asthma

Intervention / Treatment
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* Drug: Placebo
* Drug: tiotropium Respimat® low dose
* Drug: Placebo
* Drug: Placebo
* Drug: tiotropium Respimat® high dose
* Drug: 50 mcg salmeterol HFA MDI
* Drug: Placebo
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: All patients must sign and date an Informed Consent Form consistent with International Conference on Harmonisation - Good Clinical Practice (ICH-GCP) guidelines and local legislation prior to participation in the trial (i.e. prior to any trial procedures, including any pre-trial washout of medications and medication restrictions for pulmonary function test at Visit 1). Male or female patients aged at least 18 years but not more than 75 years. All patients must have at least a 3 month history of asthma at the time of enrolment into the trial. The diagnosis should be confirmed at Visit 1 by fulfilling inclusion criterion 5. The initial diagnosis of asthma must have been made before the patient's age of 40. The diagnosis of asthma has to be confirmed at Visit 1 with a bronchodilator reversibility (15 minutes after 400 mcg salbutamol (albuterol)) resulting in a Forced Expiratory Volume in one second (FEV1) increase of at least 12% and at least 200mL. All patients must have been on maintenance treatment with a medium, stable dose of inhaled corticosteroids for at least for 4 weeks prior to Visit 1. All patients must be symptomatic at Visit 1 (screening) and prior to randomisation at Visit 2 as defined by an Asthma Control Questionnaire (ACQ) mean score of at least 1.5. All patients must have a pre-bronchodilator FEV1 at least 60% and less than or equal to 90% of predicted normal at Visit 1. Variation of absolute FEV1 values of Visit 1 (pre-bronchodilator) as compared to Visit 2 (pre-dose) must be within ± 30%. Patients must be never-smokers or ex-smokers who stopped smoking at least one year prior to enrolment (Visit 0) and who have a smoking history of less than 10 pack years. Patients must be able to use the Respimat® inhaler and metered dose inhaler correctly. Patients must be able to perform all trial related procedures including technically acceptable pulmonary function tests and use of electronic diary/peak flow meter. Exclusion criteria: Patients with a significant disease other than asthma. A significant disease is defined as a disease which, in the opinion of the investigator, may (i) put the patient at risk because of participation in the trial, or (ii) influence the results of the trial, or (iii) cause concern regarding the patient's ability to participate in the trial. Patients with a clinically relevant abnormal screening (Visit 1) haematology or blood chemistry if the abnormality defines a significant disease as defined in exclusion criterion 1. Patients with a recent history (i.e. six months or less) of myocardial infarction. Patients who have been hospitalised for cardiac failure during the past year. Patients with any unstable or life-threatening cardiac arrhythmia or cardiac arrhythmia requiring intervention or a change in drug therapy within the past year. Patients with lung diseases other than asthma (e.g. Chronic Obstructive Pulmonary Disease (COPD)). Patients with known active tuberculosis. Patients with malignancy for which the patient has undergone resection, radiation therapy or chemotherapy within the last five years. Patients with treated basal cell carcinoma are allowed. Patients who have undergone thoracotomy with pulmonary resection. Patients with a history of thoracotomy for other reasons should be evaluated as per exclusion criterion no. 1. Patients with significant alcohol or drug abuse within the past two years. Patients who are currently in a pulmonary rehabilitation program or have completed a pulmonary rehabilitation program in the 6 weeks prior to Visit 1 (screening). Patients with known hypersensitivity to anticholinergic drugs, benzalkonium chloride (BAC), ethylenediamineteraacetic acid (EDTA), salmeterol xinafoate or any other components of the study medication delivery systems. Pregnant or nursing woman. Women of childbearing potential not using a highly effective method of birth control. Patients who have taken an investigational drug within four weeks prior to Visit 1. Patients who have been treated with beta-blocker medication within four weeks prior to Visit 1 and/or during the screening period. Topical cardio-selective beta-blocker eye medications for non-narrow angle glaucoma are allowed. Patients who have been treated with the long-acting anticholinergic tiotropium (Spiriva®) within four weeks prior to Visit 1 and/or during the screening period. Patients who have been treated with oral or patch beta-adrenergics within four weeks prior to Visit 1 and/or during the Screening period. Patients who have been treated with oral corticosteroids within four weeks prior to Visit 1 and/or during the screening period. Patients who have been treated with anti-IgE antibodies, e.g. omalizumab (Xolair®), within 6 months prior to Visit 1 and/or during the screening period. Patients who have been treated with cromone within two weeks prior to Visit 1 and/or during the screening period. Patients who have been treated with methylxanthines or phosphodiesterase 4 inhibitors within two weeks prior to Visit 1 and/or during the screening period. Patients who have been treated with other non-approved and according to international guidelines not recommended experimental drugs for routine asthma therapy within four weeks prior to Visit 1 and/or during the screening period. Patients with any asthma exacerbation or any respiratory tract infection iin the four weeks prior to Visit 1 and/or during the screening period. Patients who have previously been randomised in this trial or in the respective twin trial (205.419) or are currently participating in another trial.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: tiotropium low dose<br>Once daily, delivered with Respimat® inhaler (+ inhalation of placebo HFA MDI twice daily) | Drug: Placebo<br>* Placebo that represents comparator<br>Drug: tiotropium Respimat® low dose<br>* IMP<br>|
| Experimental: tiotropium high dose<br>Once daily, delivered with Respimat® inhaler (+ inhalation of placebo HFA MDI twice daily) | Drug: Placebo<br>* Placebo that represents comparator<br>Drug: tiotropium Respimat® high dose<br>* IMP<br>|
| Active Comparator: 50 mcg salmeterol<br>Twice daily, delivered with HFA MDI (+ inhalation of placebo Respimat® inhaler once daily) | Drug: 50 mcg salmeterol HFA MDI<br>* Active comparator<br>Drug: Placebo<br>* Placebo that represents BI drug<br>|
| Placebo Comparator: placebo<br>Once daily, delivered with Respimat® inhaler + twice daily delivered with HFA MDI | Drug: Placebo<br>* Placebo that represents comparator<br>Drug: Placebo<br>* Placebo that represents BI drug<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 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. | 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. | 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). | 24 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 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. | 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. | 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. | 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. | 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. | 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. | 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. | 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). | 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. | 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. | 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. | 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. | 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. | 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. | 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. | 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). | 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) | 24 weeks |