A Phase III, Randomized, Double-blind, Triple-dummy, Placebo Controlled, Multicenter, 5-period, Single-dose Complete Block Crossover Study to Determine the Onset of Action of Indacaterol (150 and 300 μg) in Patients With Moderate to Severe COPD Using Salbutamol (200 μg) and Salmeterol/Fluticasone (50/500 μg) as Active Controls
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 发起方
- Novartis
- 入组人数
- 89
- 试验地点
- 3
- 主要终点
- Forced Expiratory Volume in 1 Second (FEV1) at 5 Minutes Post-dose
研究概览
简要总结
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
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 40 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male and female adults aged ≥40 years, who have signed an Informed Consent Form prior to initiation of any study-related procedure
- •Patients with a diagnosis of Chronic Obstructive Pulmonary Disease (COPD) (moderate-to-severe as classified by the GOLD Guidelines, 2006) and:
- •Smoking history of at least 20 pack years
- •Post-bronchodilator Forced Expiratory Volume in 1 Second (FEV1) <80% and ≥30% of the predicted normal value.
- •Post-bronchodilator FEV1/Forced Vital Capacity (FVC) < 70%, where FVC is forced vital capacity ('Post-' refers to 15-30 minutes after inhalation of 400 μg of salbutamol at Visit 2)
排除标准
- •Pregnant / nursing women or women of child-bearing potential
- •Long term oxygen therapy (more than 15 hours per day) on a daily basis for chronic hypoxemia
- •Patients hospitalized for COPD exacerbation in 6 weeks prior to Visit 2 and up to Visit 3
- •Respiratory tract infection within 6 weeks prior to Visit 2 and up to Visit 3
- •Concomitant pulmonary disease, pulmonary tuberculosis (unless chest x-ray confirms no longer active) or clinically significant bronchiectasis
- •Any history of asthma, including: blood eosinophil count >400/mm3; onset of asthma symptoms prior to age 40 years
- •History of long QT syndrome or whose QTc (Bazett's) measured at Visit 2 or Visit 3 is prolonged (>450ms for males or >470ms for females)
- •Clinically relevant lab abnormalities / conditions such as (but not limited to) unstable ischemic heart disease, arrhythmia (excluding stable AF), uncontrolled hypertension, uncontrolled hypo- and hyperthyroidism, hypokalemia, hyperadrenergic state or any condition which in the investigator's opinion might compromise patient safety or compliance, interfere with evaluation, or preclude completion of the study
- •Uncontrolled Type I / Type II Diabetes or blood glucose outside normal or HbA1c >8.0% of total hemoglobin measured at Visit 2
- •Any patient with lung cancer or any active cancer or a history of cancer with less than 5 years disease-free survival time
- •History of hypersensitivity to any of the study drugs
- •Irregular day/night, waking/sleeping cycles e.g. shift workers
- •Live attenuated vaccinations within 30 days prior to Visit 2
- •Investigational drug within 30 days prior to Visit 2
- •Known history of non-compliance or not able to use devices or perform spirometry
- •Other protocol-defined inclusion/exclusion criteria may apply
研究组 & 干预措施
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Indacaterol (Drug)
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Salmeterol/fluticasone (50/500 μg) (Drug)
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Salbutamol (200 µg) (Drug)
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Placebo to Indacaterol (Drug)
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Placebo to Salmeterol/fluticasone (Drug)
Ind 150μg, Salm/flut, Ind 300μg, Placebo, Salbut
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.
干预措施: Placebo to salbutamol (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Indacaterol (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Salmeterol/fluticasone (50/500 μg) (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Salbutamol (200 µg) (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Placebo to Indacaterol (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Placebo to Salmeterol/fluticasone (Drug)
Ind 300μg, Ind 150μg, Salbut, Salm/flut, Placebo
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.
干预措施: Placebo to salbutamol (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Indacaterol (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Salmeterol/fluticasone (50/500 μg) (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Salbutamol (200 µg) (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Placebo to Indacaterol (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Placebo to Salmeterol/fluticasone (Drug)
Salm/flut, Placebo, Ind 150μg, Salbut, Ind 300μg
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.
干预措施: Placebo to salbutamol (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Indacaterol (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Salmeterol/fluticasone (50/500 μg) (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Salbutamol (200 µg) (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Placebo to Indacaterol (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Placebo to Salmeterol/fluticasone (Drug)
Salbut, Ind 300μg, Placebo, Ind 150μg, Salm/flut
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.
干预措施: Placebo to salbutamol (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Indacaterol (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Salmeterol/fluticasone (50/500 μg) (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Salbutamol (200 µg) (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Placebo to Indacaterol (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Placebo to Salmeterol/fluticasone (Drug)
Placebo, Salbut, Salm/flut , Ind 300μg, Ind 150μg
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.
干预措施: Placebo to salbutamol (Drug)
结局指标
主要结局
Forced Expiratory Volume in 1 Second (FEV1) at 5 Minutes Post-dose
时间窗: Five Minutes Post Dose
FEV1 was measured at 5 minutes after dosing with spirometry conducted according to internationally accepted standards. The time of dosing was defined as the time corresponding to the use of the first inhaler device. The primary variable was analyzed using a mixed model containing the period baseline FEV1 as covariate. The period baseline FEV1 was the average of the FEV1 value measured in the clinic at 50 and 15 min prior to the study drug administration in that period.
次要结局
未报告次要终点