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Clinical Trial Summary

To compare the relative immunogenicity and reactogenicity of the existing 23 valent plain pneumococcal vaccine and a 7 valent pneumococcal conjugate vaccine in healthy UK adults aged 50-80 years, and subsequent antibody persistence and response to boosting.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT00197821
Study type Interventional
Source Public Health England
Contact
Status Completed
Phase Phase 2
Start date January 2004
Completion date December 2008

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