Conditions: Chronic Obstructive Pulmonary Disease
Keywords: chronic obstructive pulmonary disease COPD indacaterol adults
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 89
Healthy volunteers: no

Brief summary:
This study will evaluate the onset of action of indacaterol (150 and 300 µg) as compared to placebo, salbutamol 200 µg and salmeterol/fluticasone 50/500 µg

Detailed description:

Arms:
arm 1: Participants received a single dose of each treatment from Period I - V in the following order, separated by a washout period of 4-7 days: Indacaterol 150 μg (Ind 150μg), Salmeterol/fluticasone 50/500 μg (Salm/flut), Indacaterol 300 μg (Ind 300μg), Placebo, Salbutamol 200 μg (Salbut). At each treatment visit, participants received the specified treatment and 2 placebo inhalations (one inhalation from the SDDPI, and one inhalation from each of the two MDDPIs) to maintain blinding. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol/albuterol was available for rescue use throughout the study. arm 2: Participants received a single dose of each treatment from Period I - V in the following order, separated by a washout period of 4-7 days: Indacaterol 300 μg (Ind 300μg), Indacaterol 150 μg (Ind 150μg), Salbutamol 200 μg (Salbut), Salmeterol/fluticasone 50/500 μg (Salm/flut), Placebo. At each treatment visit, participants received the specified treatment and 2 placebo inhalations (one inhalation from the SDDPI, and one inhalation from each of the two MDDPIs) to maintain blinding. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol/albuterol was available for rescue use throughout the study. arm 3: Participants received a single dose of each treatment from Period I - V in the following order, separated by a washout period of 4-7 days: Salmeterol/fluticasone 50/500 μg (Salm/flut), Placebo, Indacaterol 150 μg (Ind 150μg), Salbutamol 200 μg (Salbut), Indacaterol 300 μg (Ind 300μg). At each treatment visit, participants received the specified treatment and 2 placebo inhalations (one inhalation from the SDDPI, and one inhalation from each of the two MDDPIs) to maintain blinding. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol/albuterol was available for rescue use throughout the study. arm 4: Participants received a single dose of each treatment from Period I - V in the following order, separated by a washout period of 4-7 days: Salbutamol 200 μg (Salbut), Indacaterol 300 μg (Ind 300μg), Placebo, Indacaterol 150 μg (Ind 150μg), Salmeterol/fluticasone 50/500 μg (Salm/flut). At each treatment visit, participants received the specified treatment and 2 placebo inhalations (one inhalation from the SDDPI, and one inhalation from each of the two MDDPIs) to maintain blinding. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol/albuterol was available for rescue use throughout the study. arm 5: Participants received a single dose of each treatment from Period I - V in the following order, separated by a washout period of 4-7 days: Placebo, Salbutamol 200 μg (Salbut), Salmeterol/fluticasone 50/500 μg (Salm/flut), Indacaterol 300 μg (Ind 300μg), Indacaterol 150 μg (Ind 150μg). At each treatment visit, participants received the specified treatment and 2 placebo inhalations (one inhalation from the SDDPI, and one inhalation from each of the two MDDPIs) to maintain blinding. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol/albuterol was available for rescue use throughout the study.

Interventions: intervention 1: Indacaterol intervention 2: Salmeterol/fluticasone (50/500 μg) intervention 3: Salbutamol (200 µg) intervention 4: Placebo to Indacaterol intervention 5: Placebo to Salmeterol/fluticasone intervention 6: Placebo to salbutamol
Intervention descriptions: intervention 1: Indacaterol 150 and 300 μg, delivered via single-dose dry-powder inhaler (SDDPI) intervention 2: Salmeterol/fluticasone 50/500 μg fixed-dose combination delivered via manufacturer's proprietary Multi-Dose Dry-Powder Inhaler (MDDPI). intervention 3: Salbutamol 200 μg delivered via manufacturer's proprietary Multi-Dose Dry-Powder Inhaler (MDDPI). intervention 4: Placebo to indacaterol delivered via SDDPI intervention 5: Placebo to salmeterol/fluticasone delivered via MDDPI intervention 6: Placebo to salbutamol delivered via MDDPI

Protocol document: