Conditions: Chronic Obstructive Pulmonary Disease
Keywords: COPD indacaterol QAB149 inspiratory capacity
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 173
Healthy volunteers: no

Brief summary:
This study is being conducted to assess the effect of indacaterol (150 μg o.d.) on inspiratory capacity (IC), using placebo and open label tiotropium (18 μg o.d.) as comparators in patients with moderate chronic obstructive pulmonary disease (COPD). In particular, spirometric timepoints are included to elucidate the peak-IC in a period of approximately 4 hour post inhalation

Detailed description:

Arms:
arm 1: In treatment period 1, patients received indacaterol 150µg once daily; in treatment period 2, patients received placebo to indacaterol once daily; in treatment period 3, patients received tiotropium 18µg once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed. arm 2: In treatment period 1, patients received placebo to indacaterol once daily; in treatment period 2, patients received tiotropium 18µg once daily; in treatment period 3, patients received indacaterol 150µg once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed. arm 3: In treatment period 1, patients received tiotropium 18µg once daily; in treatment period 2, patients received indacaterol 150µg once daily; in treatment period 3, patients received placebo to indacaterol once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed. arm 4: In treatment period 1, patients received placebo to indacaterol once daily; in treatment period 2, patients received indacaterol 150µg once daily; in treatment period 3, patients received tiotropium 18µg once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed. arm 5: In treatment period 1, patients received indacaterol 150µg once daily; in treatment period 2, patients received tiotropium 18µg once daily; in treatment period 3, patients received placebo to indacaterol once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed. arm 6: In treatment period 1, patients received tiotropium 18µg once daily; in treatment period 2, patients received placebo to indacaterol once daily; in treatment period 3, patients received indacaterol 150µg once daily. Patients received indacaterol and placebo by single-dose dry powder inhaler (SDDPI); tiotropium was delivered via a proprietary inhalation device. There was a washout period of 13 days between each period. Use of fixed-dose combination of an anticholinergic plus a short-acting β2-agonist and use of long-acting β2-agonists were discontinued. Salbutamol rescue use was allowed during the treatment period as needed.

Interventions: intervention 1: Indacaterol intervention 2: Tiotropium intervention 3: Placebo
Intervention descriptions: intervention 1: Indacaterol 150µg once daily (o.d.) delivered via single-dose dry powder inhaler (SDDPI) intervention 2: Tiotropium 18µg o.d. delivered via a proprietary inhalation device. intervention 3: Placebo to indacaterol o.d. delivered via SDDPI

Protocol document: