249
Participants
Start Date
August 1, 2007
Primary Completion Date
January 1, 2008
Study Completion Date
January 1, 2008
Ambroxol
Placebo
Boehringer Ingelheim Investigational Site, Nanjing
Boehringer Ingelheim Investigational Site, Shanghai
ENT Subsidiary of Fudan University Hospital, Shanghai
Boehringer Ingelheim Investigational Site, Wuhan
Lead Sponsor
Boehringer Ingelheim
INDUSTRY