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Clinical Trial Summary

The main objective of this study was to evaluate the immunogenicity and safety of the booster dose of COVID-19 inactivated vaccine and co-immunization with quadrivalent influenza vaccine and 23-valent pneumonia polysaccharide vaccine in people aged 18 years and older. A randomized controlled, open trial design was adopted. The study was conducted with informed consent of the subjects for immunogenicity and safety in the population aged 18 years and older. A total of 3000 healthy subjects were selected, (1)600 healthy subjects were selected for the immunogenicity and safety study of co-immunization, 300 in the adult group (18-59 years old) and 300 in the elderly group (60 years old and above); (2) 2400 healthy subjects were selected for the observational study of the safety of co-immunization, 1200 in the adult group (18-59 years old) and 1200 in the elderly group (60 years old and above ) 1200 people.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05298800
Study type Interventional
Source Centers for Disease Control and Prevention, China
Contact Jiang Wu, Bachelor
Phone 13381081732
Email wj81732@hotmail.com
Status Recruiting
Phase Phase 4
Start date October 8, 2021
Completion date December 31, 2023

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