Immunogenicity of Twice-annual Influenza Vaccination in Older Adults in Hong Kong
Clinical trial NCT02957890 · ACTIVE_NOT_RECRUITING
Trial details
- NCT number
- NCT02957890
- Sponsor
- The University of Hong Kong
- Status
- ACTIVE_NOT_RECRUITING
- Phase
- Phase 4
- Study type
- INTERVENTIONAL
- Start date
- 2016-11-18
- Primary completion
- 2025-09-01
- Enrollment
- 400
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