Single Dose Ranging Study of BI 1744 CL (Olodaterol) in Chronic Obstructive Pulmonary Disease

Forced expiratory volume in one second (FEV1) at 24 hours after a single-dose of study treatment. Means are adjusted with test-day baseline, patient, treatment, and period as fixed effects. Test-day baseline value was defined as the value at 10 minutes before inhalation of study medication.

The FEV1 AUC was calculated as the area under the curve above zero as the horizontal axis from zero time to 3 hours, using the trapezoidal rule divided by 3 hours to give the results in litres. The test-day baseline (defined as the pulmonary function test (PFT) at 10 minutes before inhalation of study medication) was assigned to time zero.

The FEV1 AUC was calculated as the area under the curve above zero as the horizontal axis from zero time to 12 hours, using the trapezoidal rule divided by 12 hours to give the results in litres. The test-day baseline (defined as the pulmonary function test (PFT) at 10 minutes before inhalation of study medication) was assigned to time zero.

The FEV1 AUC was calculated as the area under the curve above zero as the horizontal axis from zero time to 24 hours, using the trapezoidal rule divided by 24 hours to give the results in litres. The test-day baseline (defined as the pulmonary function test (PFT) at 10 minutes before inhalation of study medication) was assigned to time zero.

The FEV1 AUC was calculated as the area under the curve above zero as the horizontal axis from 12 hours to 24 hours, using the trapezoidal rule divided by 12 hours to give the results in litres. The test-day baseline (defined as the pulmonary function test (PFT) at 10 minutes before inhalation of study medication) was assigned to time zero.

Peak FEV1 was defined as the maximum values of FEV1 from 0 to 3 hours.

Peak FVC was defined as the maximum values of FVC from 0 to 3 hours.

A bronchodilator response was considered to have been achieved if an FEV1 measurement of at least 12% greater than the test-day baseline value was recorded at any time during the first 3 hours of observation after dosing.

Onset of the bronchodilator response after a single dose of study treatment was defined as the linear interpolation of the time of the first bronchodilator response and the time of the observation just prior to the first bronchodilator response (even if that is the baseline observation). If none of the FEV1 values in the first 3 hours after dosing exceeded 12% of the pre-dose value, then the onset was set to 3 hours plus 1 minute.

Number of Patients Requiring Rescue Medication on a Test-day. Salbutamol inhalation aerosol MDI (Ventolin®, 100 μg/actuation) was provided for use as rescue medication. Administration of rescue medication can occur at any point during the pulmonary function testing as deemed necessary by the patient or the investigator.

Clinical relevant Abnormalities for Vital Signs, Blood Chemistry, Haematology, Urinalysis and ECG. New abnormal findings or worsenings of baseline conditions were reported as Adverse Events (cardiac disorders and investigations).

Laboratory testing: Average change from baseline of potassium and calcium measured on test-days