581
Participants
Start Date
September 1, 2011
Primary Completion Date
December 1, 2012
Study Completion Date
December 1, 2012
Drug: Budesonide/formoterol (Symbicort Turbuhaler
budesonide/formoterol (Symbicort Turbuhaler 160/4.5µg/inhalation, 2 inhalations twice daily)
Drug: ipratropium (AtroventTM)
ipratropium (AtroventTM 20 µg/inhalation, 2 inhalations four times daily)
theophylline SR
theophylline SR (0.1g/tablet, 1 tablet p.o. twice daily)
Research Site, Beijing
Research Site, Foshan
Research Site, Guangzhou
Research Site, Zhongshan
Research Site, Haikou
Research Site, Shijiazhuang
Research Site, Tangshan
Research Site, Zhengzhou
Research Site, Wuhan
Research Site, Changsha
Research Site, Nanjing
Research Site, Changchun
Research Site, Shenyang
Research Site, Qingdao
Research Site, Shanghai
Research Site, Tianjin
Research Site, Chengdu
Research Site, Chongqin
Research Site, Dalian
Research Site, Ha'er BING
Research Site, Hohhot
Lead Sponsor
AstraZeneca
INDUSTRY