This study evaluates the effects of 12-week treatment with two doses of tiotropium bromide (2.5 mcg q.d. and 5 mcg q.d.) compared to placebo administered via the Respimat device on lung function in patients with Cystic Fibrosis. The selection of the optimal dose will be based on bronchodilator efficacy, safety evaluations and pharmacokinetic evaluations
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
510
patient to receive placebo matching active drug once daily
patient to recieve high dose tiotropium once daily
patient to receive low dose tiotropium once daily
Percent Predicted FEV1 AUC0-4 Response at the End of Week 12
Outcome measure description: Change from baseline in percent predicted Forced Expiratory Volume in one second (FEV1) Area Under the Curve from 0 to 4 hours (AUC0-4). Calculated as percent predicted at week 12 minus percent predicted at baseline.
Time frame: Baseline, Week 12
Percent Predicted FEV1 Trough Response at the End of Week 12
Outcome measure description: Change from baseline in percent predicted trough Forced Expiratory Volume in one second. Calculated as percent predicted at week 12 minus percent predicted at baseline.
Time frame: Baseline, Week 12
Percent Predicted FVC AUC0-4 Response at the End of Week 12
Change from baseline in percent predicted Forced Vital Capacity (FVC) Area Under the Curve from 0 to 4 hours (AUC0-4). Calculated as percent predicted at week 12 minus percent predicted at baseline.
Time frame: Baseline, Week 12
Percent Predicted FVC Trough Response at the End of Week 12
Change from baseline in percent predicted trough Forced Vital Capacity (FVC). Calculated as percent predicted at week 12 minus percent predicted at baseline.
Time frame: Baseline, Week 12
Pre-bronchodilator FEF25-75 Percent Predicted at the End of Week 12
Forced Expiratory Flow at 25-75% of vital capacity (FEF25-75). Calculated as percent predicted at week 12 minus percent predicted at baseline.
Time frame: Baseline, Week 12
Change From Baseline in Residual Volume/Total Lung Capacity (RV/TLC) at the End of Week 12
Change from baseline in static lung hyperinflation as measured by RV/TLC. Calculated as percent predicted at week 12 minus percent predicted at baseline.
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Indianapolis, Indiana, United States
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...and 97 more locations
Time frame: Baseline, Week 12
Respiratory and Systemic Symptoms Questionnaire (RSSQ)
Outcome measure description: The RSSQ questionnaire is used to determine the presence or absence of an exacerbation during the recall period.
Time frame: 12 weeks
Change From Baseline in CFQ Scores - Adult Group
The Cystic Fibrosis questionnaire (CFQ) is a disease-specific instrument that measures health-related quality of life (HRQOL) for adults with CF. This validation questionnaire consists of 50 items on generic and disease-specific scales. The scores range from 0 to 100, with higher scores indicating better health.
Time frame: 12 weeks
Change From Baseline in CFQ Scores - Adolescents Group
The Cystic Fibrosis questionnaire (CFQ) is a disease-specific instrument that measures health-related quality of life (HRQOL) for adolescents (age 6-13) with CF. This validation questionnaire consists of 50 items on generic and disease-specific scales. The scores range from 0 to 100, with higher scores indicating better health.
Time frame: 12 weeks
Change From Baseline in CFQ Scores - Parent Questionnaire
The Cystic Fibrosis questionnaire (CFQ) is a disease-specific instrument that measures health-related quality of life (HRQOL) for adolescents with CF - parent questionnaire. This validation questionnaire consists of 50 items on generic and disease-specific scales. The scores range from 0 to 100, with higher scores indicating better health.
Time frame: 12 weeks
Amount of Tiotropium Eliminated in Urine From 0 to 4 Hours at Steady State (Ae0-4,ss)
Ae0-4,ss represents the amount of tiotropium that is eliminated in urine from time 0 to 4 hours at steady state
Time frame: pre-dose, and 5 minutes (min), 20 min, 1 hour (h), and 2 h post-dose
Maximum Measured Concentration at Steady State (Cmax,ss)
Cmax,ss represents the maximum measured concentration of tiotropium in plasma at steady state.
Time frame: pre-dose, and 5 minutes (min), 20 min, 1 hour (h), and 2 h post-dose
Time From Dosing to the Maximum Concentration (Tmax,ss)
Tmax,ss represents the time from dosing to the maximum concentration of tiotropium in plasma
Time frame: pre-dose, and 5 minutes (min), 20 min, 1 hour (h), and 2 h post-dose
Clinical Relevant Abnormalities for Vital Signs and Laboratory Evaluation
Clinical Relevant Abnormalities for Vital Signs and Laboratory evaluation. Any new or clinically relevant worsening of baseline conditions was reported as Adverse Event.
Time frame: From first drug administration until 30 days after last drug administration (up to 121 days)