This study investigated the effect of exercise and high-dose salbutamol on the maximum heart rate in patients with chronic obstructive pulmonary disease (COPD) receiving therapeutic doses of indacaterol, salmeterol and placebo.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
27
Single dose of indacaterol 300μg capsule via Concept 1 inhaler device at approximately the same time in the morning (i.e. between 8am and 9am).
Single dose indacaterol matching placebo via Concept 1 device
Single dose salmeterol 50μg via the Diskus dry powder inhaler (DPI) in part 1 of the study. Morning single inhalational dose and an evening single inhalation dose of salmeterol 50μg via the Diskus DPI in part 2 of the study.
Novartis Investigative site
Antwerp, Belgium
Percentage of Participants With Maximum Heart Rate Increase During Exercise in Part 1 of the Study
The percentage of patients with an increase of more than 10 beats per minute (bpm) in their heart rate following treatment with indacaterol and salmeterol compared to treatment with placebo was determined.
Time frame: 24-hours post-dose on Day 1 (of each treatment)
Percentage of Participants With Maximum Heart Rate Increase During Salbutamol Administration in Part 2 of the Study
The percentage of patients with an increase of \>= 10 beats per minute (bpm) in their heart rate (HR) following treatment with indacaterol and salmeterol compared to treatment with placebo over 24 hours in Part 2 was determined. * 0-12 hours: post first dose measurements up to second dose * 12-24 hours: post second dose measurement up to and including the 24 hour measurement * 0-24 hours: all post dose measurements up to and including the 24 hour measurement
Time frame: 24 hours post dose on Day 1
Maximum Heart Rate During Exercise in Part 1
Maximum heart rate was generally taken from the continuous ECG monitoring. Analysis based on mixed effects analysis using model with treatment and period as fixed effects and subject as random effect.
Time frame: 2 hour post-dose on Day 1
Maximum Heart Rate (HR) During Salbutamol Administration in Part 2
Maximum HR (0-12 hours): maximum (max) of post dose measurement up to second administration. Maximum HR (12-24 hours): max of the post second administration of salbutamol measurements. Maximum HR (0-24 hours): max of all post dose measurements up to and including the 24 hour measurement. Mixed effects analysis model used period baseline HR as the covariate. The maximum HR for 0-24 hours (h) is the maximum of the maximum HR for the two 12h periods and thus the average (LS means) of the maximum HRs for 0-24h will be equal to or greater than the average of the maximum for the two periods.
Time frame: 24 hours post dose on Day 1
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Change in Heart Rate During Exercise in Part 1
Change in heart rate is calculated from the 1.5 hour post dose to the maximum heart rate during exercise. Analysis of covariance included treatment and period as fixed effects, subject as random effect and 1.5 hour pre-exercise/post dose heart rate as a covariate.
Time frame: 1.5 hour post dose to max heart rate during exercise
Trough Forced Expiratory Volume in 1 Second (FEV1) During Part 1 and Part 2
FEV1 was measured with spirometry conducted according to internationally accepted standards. Trough FEV1 was defined as the mean of the 23 hours 30 minutes and 24 hours post morning dose FEV1 measurements. Analysis of covariance included pre-dose FEV1 as covariate.
Time frame: 23 hours 30 minutes and 24 hours post-dose at Day 1