New study tracks COVID vaccine durability in chronic illness patients
NCT ID NCT05313087
First seen Apr 23, 2026 · Last updated Jun 23, 2026 · Updated 11 times
Summary
This completed study followed 360 adults and children with chronic respiratory and other medical conditions to see how their immune systems responded to COVID-19 vaccines over 18 months. Researchers measured antibody, T cell, and B cell levels before vaccination and every 3 months after. The goal was to understand how long vaccine protection lasts in people with ongoing health issues.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
-
National Jewish Health
Denver, Colorado, 80206, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
COVID-19 vaccine
What this could lead to
If successful, this study could help doctors understand how long vaccine protection lasts in people with chronic health conditions, guiding booster shot timing.
What could go wrong
This is an observational study, not a treatment trial. It measures immune responses but does not test a new vaccine or therapy. Results may not apply to all patients.
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.