A Phase 3 Trial to Evaluate the Safety and Immunogenicity of 3 Lots of 20-Valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naive Adults 18 through 49 Years of Age

A phase 3, randomized, double-blind trial will evaluate the safety and immunogenicity of 3 lots of 20-valent Pneumococcal conjugate vaccine in Pneumococcal vaccine­­­–naive adults 18 through 49 years of age. The purpose of this study is to evaluate the safety and consistency of immune response elicited across 3 different lots of 20vPnC.

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