The objective of the study was to investigate safety, tolerability and pharmacokinetics of butylated hydroxytoluene (BHT) (sub-study 1) administered via Respimat® Soft MistTM Inhaler B (SMI B); to assess safety, tolerability and pharmacokinetics of multiple rising doses of BI 54903 XX administered via Respimat® SMI B (main study), and to compare systemic exposure of single dose BI 54903 XX administered via Respimat® SMI B (sub-study 2) with single dose Alvesco® (ciclesonide) administered via HFA-134a propellant metered dose inhaler (MDI).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
56
Number of patients with adverse events
Time frame: up to 21 days after last drug administration
Number of patients with clinically significant findings in vitals signs
Time frame: up to 21 days after last drug administration
Number of patients with clinically significant findings in ECG
Time frame: up to 21 days after last drug administration
Number of patients with clinically significant findings in laboratory tests
Time frame: up to 21 days after last drug administration
Investigator assessed tolerability on a 4-point scale
Time frame: up to 21 days after last drug administration
Change in airway resistance (Raw)
Time frame: baseline, after 80 hours
Cmax (maximum measured concentration in plasma)
Time frame: up to 24 hours after last drug administration
tmax (time from dosing to maximum measured concentration in plasma)
Time frame: up to 24 hours after last drug administration
AUCτ (area under the concentration-time curve in plasma over a uniform dosing interval τ)
Time frame: up to 24 hours after last drug administration
AUC0-inf (area under the concentration-time curve in plasma over the time interval from 0 extrapolated to infinity)
Time frame: up to 24 hours after last drug administration
AUCt1-t2 (area under the concentration-time curve in plasma over the time interval from time t1 to time t2)
Time frame: up to 24 hours after last drug administration
AUC0-tz (area under the concentration-time curve in plasma over the time interval from 0 to the last quantifiable concentration at tz)
Time frame: up to 24 hours after last drug administration
%AUCtz-∞ (the percentage of the AUC 0-∞ that is obtained by extrapolation)
Time frame: up to 24 hours after last drug administration
λz (terminal rate constant in plasma)
Time frame: up to 24 hours after last drug administration
t1/2 (terminal half-life in plasma)
Time frame: up to 24 hours after last drug administration
MRTih (mean residence time in the body after inhalation administration)
Time frame: up to 24 hours after last drug administration
CL/F (apparent clearance in plasma following inhalation administration)
Time frame: up to 24 hours after last drug administration
Vz/F (apparent volume of distribution during the terminal phase λz following inhalation administration)
Time frame: up to 24 hours after last drug administration
Aet1-t2 (amount that is eliminated in urine from the time point t1 to time point t2)
Time frame: up to 24 hours after last drug administration
fet1-t2 (fraction that is eliminated in urine from time point t1 to time point t2)
Time frame: up to 24 hours after last drug administration
CLR,t1-t2 (renal clearance from the time point t1 until the time point t2)
Time frame: up to 24 hours after last drug administration
Accumulation ratio based on Cmax (RA,Cmax)
Time frame: up to 24 hours after last drug administration
Accumulation ratio based on AUC (RA,AUC)
Time frame: up to 24 hours after last drug administration
Linearity index (LI)
Time frame: up to 24 hours after last drug administration
Metabolite-to-parent ratio for Cmax (RCmax,Met)
Time frame: up to 24 hours after last drug administration
Metabolite-to-parent ratio for AUC (AUCt1-t2,Met)
Time frame: up to 24 hours after last drug administration
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