Control Group:PPV23 vaccination

2 trials

Sponsors

Shanghai Municipal Center for Disease Control and Prevention, Sichuan Center for Disease Control and Prevention

Conditions

Bacterial pneumonia

Phase 4

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

RecruitingChiCTR2100041932

Shanghai Municipal Center for Disease Control and PreventionBacterial pneumonia

Start: 2021-01-04Updated: 2021-03-30

A phase IV clinical trial to evaluate the immunogenicity and safety of 23-valent pneumococcal polysaccharide vaccine revaccinations in the elderly

RecruitingChiCTR2100042000

Sichuan Center for Disease Control and PreventionBacterial pneumonia

Start: 2021-01-04Updated: 2021-04-12

Related Papers

Immunogenicity and safety study of 23-valent pneumococcal polysaccharide vaccine revaccination among elderly individuals aged 60–70 years in Shanghai, China

Frontiers in Immunology2025-07-17