Conditions: Asthma
Keywords: asthma QAB149 indacaterol pulmonary function
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 35
Healthy volunteers: no

Brief summary:
This study assessed the efficacy, safety, tolerability, and pharmacokinetics of two different formulations of indacaterol, one administered via the Concept1 device and one administered via the Simoon device. The study aimed to determine whether the novel formulation (Simoon) had a similar profile to that of the established formulation (Concept1).

Detailed description:
This study was double-blind with regards to the Concept1, where placebo for the lactose-blended indacaterol was available. However, with regards to the Simoon, neither the subject nor the investigator was blinded due to lack of a placebo to the PulmoSphere formulation. Hence, the overall designation of the study was partially-blind.

Arms:
arm 1: In treatment period 1, patients received indacaterol 150 μg via the Concept1 dry-powder inhaler (DPI); in treatment period 2, patients received placebo to indacaterol via the Concept1 DPI; in treatment period 3, patients received indacaterol 60 μg via the Simoon DPI; and in treatment period 4, patients received indacaterol 120 μg via the Simoon DPI. Patients received each treatment only once. There was a washout period of 14-17 days between treatments for patients undergoing pharmacokinetic (PK) assessments; for patients not undergoing PK assessments, the washout period was 7-10 days. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol was available for rescue use throughout the study. arm 2: In treatment period 1, patients received indacaterol 60 μg via the Simoon dry-powder inhaler (DPI); in treatment period 2, patients received indacaterol 150 μg via the Concept1 DPI; in treatment period 3, patients received indacaterol 120 μg via the Simoon DPI; and in treatment period 4, patients received placebo to indacaterol via the Concept1 DPI. Patients received each treatment only once. There was a washout period of 14-17 days between treatments for patients undergoing pharmacokinetic (PK) assessments; for patients not undergoing PK assessments, the washout period was 7-10 days. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol was available for rescue use throughout the study. arm 3: In treatment period 1, patients received indacaterol 120 μg via the Simoon dry-powder inhaler (DPI); in treatment period 2, patients received indacaterol 60 μg via the Simoon DPI; in treatment period 3, patients received placebo to indacaterol via the Concept1 DPI; and in treatment period 4, patients received indacaterol 150 μg via the Concept1 DPI. Patients received each treatment only once. There was a washout period of 14-17 days between treatments for patients undergoing pharmacokinetic (PK) assessments; for patients not undergoing PK assessments, the washout period was 7-10 days. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol was available for rescue use throughout the study. arm 4: In treatment period 1, patients received placebo to indacaterol via the Concept1 dry-powder inhaler (DPI); in treatment period 2, patients received indacaterol 120 μg via the Simoon DPI; in treatment period 3, patients received indacaterol 150 μg via the Concept1 DPI; and in treatment period 4, patients received indacaterol 60 μg via the Simoon DPI. Patients received each treatment only once. There was a washout period of 14-17 days between treatments for patients undergoing pharmacokinetic (PK) assessments; for patients not undergoing PK assessments, the washout period was 7-10 days. Daily inhaled corticosteroid treatment (if applicable) was to remain stable throughout the study. The short-acting β2-agonist salbutamol was available for rescue use throughout the study.

Interventions: intervention 1: Indacaterol 150 μg via the Concept1 dry-powder inhaler intervention 2: Indacaterol 60 μg via the Simoon dry-powder inhaler intervention 3: Indacaterol 120 μg via the Simoon dry-powder inhaler intervention 4: Placebo to indacaterol via the Concept1 dry-powder inhaler
Intervention descriptions: intervention 1: Indacaterol maleate 150 μg was provided in powder filled capsules with the Concept1 dry-powder inhaler. intervention 2: Indacaterol 60 μg was provided in powder filled capsules with the Simoon dry-powder inhaler. intervention 3: Indacaterol 120 μg was provided in powder filled capsules with the Simoon dry-powder inhaler. intervention 4: Placebo to indacaterol was provided in powder filled capsules with the Concept1 dry-powder inhaler.

Protocol document: