Asthma/ COPD Clinical Trial
Official title:
A Study to Evaluate the Consistency of Oscillometry and Spirometry Test Results in Patients With Confirmed or Suspected Asthma or COPD
The study to evaluate the consistency of oscillometry and spirometry test results in patients with confirmed or suspected asthma or COPD, it is a multi-centre clinical study. sponsor by Astrazeneca Investment(China) Co.,LTD.
800 patients, including suspected or confirmed asthma, suspected or confirmed COPD, will be enrolled in nationwide multiple study centres. Enrolling suspected and confirmed subject in an approximate1:1 rate in centre-level. About 100 subjects were enrolled at the leader site, while about 14 subjects were enrolled at other sites. To evaluate the consistency of oscillometry and spirometry test results in patients with confirmed or suspected asthma or COPD. ;