Massive trial tests COVID vaccine in 285,000 healthy Middle-Aged adults

NCT ID NCT07279766

First seen Jan 04, 2026 · Last updated May 16, 2026 · Updated 18 times

Summary

This study tests whether a COVID-19 vaccine (mRNA-1273) can prevent severe illness in healthy adults aged 50-64 who have no known risk factors. About 285,000 participants will be randomly assigned to receive the vaccine or no vaccine. The main goal is to see if the vaccine reduces hospitalizations and positive COVID-19 tests.

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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.

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Contacts and locations

Locations

  • Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte

    Hellerup, 2900, Denmark

  • Danske Lægers Vaccinations Service

    Søborg, 2860, Denmark

Conditions

Explore the condition pages connected to this study.