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

NCT04700618 · clinicaltrials.gov ↗

PHASE4

Phase

COMPLETED

Status

330

Enrollment

INDUSTRY

Sponsor class

Conditions

Vaccination

Interventions

BIOLOGICAL: 23-valent pneumococcal polysaccharide vaccine

Sponsor

China National Biotec Group Company Limited

Collaborators

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