Immunogenicity of Twice-annual Influenza Vaccination in Older Adults in Hong Kong

NCT02957890 · clinicaltrials.gov ↗

PHASE4

Phase

ACTIVE_NOT_RECRUITING

Status

400

Enrollment

OTHER

Sponsor class

Conditions

Influenza, Human

Interventions

BIOLOGICAL: Inactivated influenza vaccine (NH formulation)
BIOLOGICAL: Inactivated influenza vaccine (SH formulation)
BIOLOGICAL: Placebo

Sponsor

The University of Hong Kong

Collaborators

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