Study of Indacaterol Dosed in the Evening in Patients With Chronic Obstructive Pulmonary Disease (COPD)

Phase 3

Completed

Conditions: Chronic Obstructive Pulmonary Disease (COPD)

Interventions: Drug: Indacaterol
Drug: Salmeterol
Drug: Placebo to Indacaterol
Drug: Placebo to Salmeterol

Registration Number: NCT00615030

Lead Sponsor: Novartis

Brief Summary: This study was conducted to provide detailed information on the efficacy of indacaterol (in terms of the spirometry assessment forced expiratory volume in 1 second \[FEV1\]) over the full 24-h time period

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 96

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type: INTERVENTIONAL

Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Indacaterol Morning,Indacaterol Evening, Salmeterol	Placebo to Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via single dose dry powder inhaler (SDDPI) with a placebo to salmeterol delivered via dry powder inhaler (DPI). Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, Salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and second dose in the evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Salmeterol, Indacaterol Evening	Placebo to Indacaterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via dry powder inhaler (DPI). One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Salmeterol, Indacaterol Morning	Placebo to Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Morning, Salmeterol	Placebo to Indacaterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via dry powder inhaler DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Morning, Indacaterol Evening	Placebo to Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Salmeterol, Indacaterol Evening	Placebo to Salmeterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via dry powder inhaler (DPI). One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Salmeterol, Indacaterol Morning	Placebo to Salmeterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Evening, Indacaterol Morning	Placebo to Salmeterol	In period, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning,Indacaterol Evening, Salmeterol	Placebo to Salmeterol	In period I, indacaterol 300 μg once a day in the morning delivered via single dose dry powder inhaler (SDDPI) with a placebo to salmeterol delivered via dry powder inhaler (DPI). Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, Salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and second dose in the evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Indacaterol Morning, Placebo	Placebo to Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Indacaterol Morning, Placebo	Placebo to Salmeterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Placebo, Indacaterol Morning	Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Placebo, Indacaterol Morning	Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Placebo, Indacaterol Morning	Placebo to Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Placebo, Indacaterol Morning	Placebo to Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Placebo, Indacaterol Evening	Placebo to Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, During morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, Patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Placebo, Indacaterol Evening	Placebo to Salmeterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, During morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, Patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Salmeterol, Indacaterol Morning	Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Evening, Placebo	Placebo to Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Evening, Placebo	Placebo to Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Morning, Salmeterol	Placebo to Salmeterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via dry powder inhaler DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Salmeterol, Placebo	Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Salmeterol, Placebo	Placebo to Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Salmeterol, Placebo	Placebo to Salmeterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening, Placebo, Salmeterol	Placebo to Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry powder inhaler DPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening, Placebo, Salmeterol	Placebo to Salmeterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry powder inhaler DPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Morning, Indacaterol Evening	Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Morning, Indacaterol Evening	Placebo to Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Evening, Indacaterol Morning	Placebo to Indacaterol	In period, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning,Indacaterol Evening, Salmeterol	Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via single dose dry powder inhaler (SDDPI) with a placebo to salmeterol delivered via dry powder inhaler (DPI). Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, Salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and second dose in the evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning,Indacaterol Evening, Salmeterol	Salmeterol	In period I, indacaterol 300 μg once a day in the morning delivered via single dose dry powder inhaler (SDDPI) with a placebo to salmeterol delivered via dry powder inhaler (DPI). Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, Salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and second dose in the evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Indacaterol Morning, Placebo	Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Salmeterol, Indacaterol Evening	Salmeterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via dry powder inhaler (DPI). One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Salmeterol, Indacaterol Evening	Indacaterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via dry powder inhaler (DPI). One of the two daily doses of salmeterol was administered in the morning and the second dose was in the evening along with placebo matching indacaterol delivered by SDDPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Placebo, Indacaterol Evening	Indacaterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, During morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, Patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening,Salmeterol, Indacaterol Morning	Salmeterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Evening, Placebo	Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Evening, Placebo	Salmeterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Morning, Salmeterol	Indacaterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via dry powder inhaler DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Morning, Salmeterol	Salmeterol	In period I, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via dry powder inhaler DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Morning, Salmeterol, Placebo	Salmeterol	In period I, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period II, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period III, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening, Placebo, Salmeterol	Indacaterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry powder inhaler DPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Indacaterol Evening, Placebo, Salmeterol	Salmeterol	In period I, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via dry powder inhaler DPI. In period II, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period III, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Salmeterol, Indacaterol Morning, Indacaterol Evening	Indacaterol	In period I, salmeterol 50 μg twice daily delivered via DPI. One of the two daily doses of salmeterol was administered in the morning and the second dose in evening along with placebo matching indacaterol delivered by SDDPI. In period II, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. In period III, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.
Placebo, Indacaterol Evening, Indacaterol Morning	Indacaterol	In period, during morning and evening, placebo matching indacaterol was delivered via SDDPI and placebo matching salmeterol was delivered via DPI. In period II, patients were instructed to take morning doses of a placebo to indacaterol delivered via SDDPI and placebo to salmeterol delivered via DPI. Indacaterol 300 μg once a day in the evening delivered via SDDPI with placebo to salmeterol delivered via DPI. In period III, indacaterol 300 μg once a day in the morning delivered via SDDPI with a placebo to salmeterol delivered via DPI. Patients were also instructed to take evening doses of a placebo to indacaterol via SDDPI and placebo to salmeterol via DPI. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) was available for rescue use throughout the study.

Primary Outcome Measures

Name	Time	Method
Trough Forced Expiratory Volume in 1 Second (FEV1) Following 14 Days of Evening Dosing of Indacaterol Versus Placebo	After 14 days of treatment	Trough FEV1 was assessed by performing spirometry measurements in the clinic for each treatment period. For the primary efficacy variable, trough FEV1 is the mean of two measurements taken at 23h 10 min and 23h 45 min post dose. The primary variable was analyzed using an analysis of covariance (ANCOVA) model with the (period) baseline FEV1 as covariate. The (period) baseline FEV1 was defined as the value measured before the study drug administration in that treatment period.

Secondary Outcome Measures

Name	Time	Method
Trough FEV1 Assessed After 14 Days of Dosing for All Other Treatment Comparisons	After 14 days of dosing	Trough FEV1 was assessed by performing spirometry measurements in the clinic for each treatment period. On the morning and evening of Day 15 trough FEV1 (i.e. mean of measurements performed 23 h 10 min and 23 h 45 min post-dose) were assessed. An analysis of covariance (ANCOVA) model was used with the (period) baseline FEV1 as covariate. The (period) baseline FEV1 was defined as the value measured before the study drug administration in that treatment period.