Immunogenicity of Twice-annual Vaccination Against Seasonal Influenza for Two Hemispheres in Older Adults in Hong Kong - a Randomised Controlled Trial
Active, no longer recruiting
Phase of Trial: Phase IV
Latest Information Update: 07 Aug 2017
At a glance
- Drugs Influenza virus vaccine (Primary)
- Indications Influenza virus infections
- Focus Pharmacodynamics
- Acronyms RETAIN
- 02 Aug 2017 Status changed from recruiting to active, no longer recruiting.
- 23 Apr 2017 Status changed from not yet recruiting to recruiting.
- 11 Nov 2016 New trial record