A randomised, double-blind, double-dummy, multi-site, phase III, single dose, 4-way cross-over pharmacodynamic study evaluating the efficacy of Bricanyl Turbuhaler M3 compared to Bricanyl Turbuhaler M2 by studying the protective effect on methacholine induced bronchoconstriction in patients with stable, mild to moderate asthma - n / a

AstraZeneca AB0 个研究点目标入组 60 人开始时间: 2015年2月12日最近更新: 2016年1月25日

研究概览

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•- Female and male aged 18 and 65 years.
•- At least 6 months of documented clinical diagnosis of asthma as defined by GINA 2012 or American Thoracic Society (Expert Panel Report 3 2007) prior to visit 1
•- Stable asthmatics on SABA alone, on low dose ICS (200-400 µg budesonide corresponding) or on fixed combination of low ICS/LABA
•- At the enrolment visit 1a, the visit baseline FEV1 must be =80 % of that predicted normal (NHANES III). For LABA patients the visit baseline FEV1 must be =80 % of that predicted normal (NHANES III) at both visit 1a and visit 1b. If not, the patient will be withdrawn from the study
•- At the enrolment visits 1a or 1b (LABA patients only) and at the end of run-in period, visit 2, eligible patients should demonstrate an airway responsiveness to methacholine PC20 <8 mg/mL. If not, the patient will be withdrawn from the study
•- Capable of using Turbuhaler inhalation device as judged by investigator.
•Are the trial subjects under 18? no
•Number of subjects for this age range:
•F.1.2 Adults (18-64 years) yes
•F.1.2.1 Number of subjects for this age range 60
•F.1.3 Elderly (>=65 years) no
•F.1.3.1 Number of subjects for this age range

•- Diagnosed with COPD or history of cystic fibrosis, bronchiectasis or other respiratory diseases
•- Pregnancy, breast-feeding, lactation, or planned pregnancy during the study. Fertile women not using acceptable contraceptive measures
•- Conditions which could alter airway reactivity to methacholine (e.g. pneumonia, upper respiratory tract infection, viral bronchitis and/or sinobronchitis) within past six weeks
•- Exacerbation due to asthma or change in asthma medication during the last 3 months prior to enrolment
•- Night time awakenings due to asthma symptoms on 2 consecutive nights during the last 4 weeks prior to enrolment
•- Smokers 6 months prior to the study start or with a history of smoking of more than 10 pack years (e.g. 20 cigarettes/day for at least 10 years, or 10 cigarettes/day for at least 20 years, or equal).

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