Scientists probe mysterious loss of nose immune cells in aging
NCT ID NCT06039527
First seen Jun 26, 2026 · Last updated Jul 08, 2026 · Updated 2 times
Summary
This observational study aims to understand why older adults lose certain immune cells (T cells) from their nasal passages, which may make them more prone to respiratory infections. Researchers will compare young adults (18-30), healthy older adults (65+), and frail older adults (65+) by taking nasal samples and blood tests. The goal is to uncover the mechanisms behind this cell loss and its link to infection risk, but this study does not test any treatment or intervention.
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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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Leiden University Medical Center
Leiden, South Holland, 2333ZA, Netherlands
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