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Clinical Trial Summary

Evaluation of immunogenicity and safety of the subjects aged 60 years and above with chronic bronchitis and chronic obstructive pulmonary disease recruited to receive the schedule of two doses inactivated COVID-19 vaccine with the interval of 21 days .


Clinical Trial Description

The subjects aged 60 years and above with chronic bronchitis and chronic obstructive pulmonary disease were recruited to receive the schedule of two doses inactivated COVID-19 vaccine with the interval of 21 days . Blood samples will be collected 2 times: before the 1st dose of vaccinatioin and 28 days after the 2nd dose of vaccination. Any local or systemic adverse events that occurred within 21 days after vaccination will be recorded. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05075083
Study type Interventional
Source China National Biotec Group Company Limited
Contact Hanqing He
Phone (0571)87115111
Email [email protected]
Status Not yet recruiting
Phase Phase 4
Start date October 2021
Completion date June 30, 2022

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