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A Clinical Trial to Evaluate the Safety and Immunogenicity of PPV23 Vaccine Revaccinated in 60-70 Years Old

Vaccination Clinical Trial

Official title:
A Phase Ⅳ Clinical Trial to Evaluate the Safety and Immunogenicity of 23 Valent Pneumococcal Polysaccharide Vaccine Revaccinated in 60-70 Years Old in Shanghai

Clinical Trial Summary

Objective: To evaluate the safety and immunogenicity of PPV23 vaccine revaccinated in 60-70 years old in Shanghai.

Clinical Trial Description

1. Antibody double growth rate in 28-40 days after immunization; 2. Antibody GMC level in 28-40days after immunization; 3. Incidence of adverse reactions in 0-30days. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04700618
Study type Interventional
Source China National Biotec Group Company Limited
Contact
Status Completed
Phase Phase 4
Start date March 21, 2021
Completion date February 13, 2022
View Details
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