Elderly vaccine response under microscope
NCT ID NCT04760704
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how well the Pfizer COVID-19 vaccine works in people over 65 living in nursing homes compared to younger adults aged 40-65. Researchers measured immune cells and antibodies at 3 and 9 months after vaccination. The goal was to understand if older adults get the same level of protection as younger people.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU lille
Lille, 59037, France