Big data study to reveal true power of updated COVID shots
NCT ID NCT06923137
First seen Nov 01, 2025 · Last updated Jun 19, 2026 · Updated 33 times
Summary
This study looks at insurance and vaccine records to find out how well the yearly updated COVID-19 vaccines protect people. It includes adults 18 and older and children from 6 months to 17 years old. No vaccines or treatments are given—researchers just analyze existing data to compare vaccinated and unvaccinated groups.
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This is a summary of
the original study
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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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Locations
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Pfizer
New York, New York, 10001, United States
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.