One shot for two viruses? new combo vaccine enters early human testing
NCT ID NCT07464314
First seen Jun 25, 2026 · Last updated Jul 01, 2026 · Updated 3 times
Summary
This early-stage study is testing a new mRNA vaccine that aims to protect against both seasonal flu and COVID-19 with a single shot. Around 1,475 healthy adults aged 65 to 85 will receive either the new combo vaccine, a standard flu vaccine, or a licensed COVID-19 vaccine. Researchers will closely monitor side effects and measure immune responses through blood samples to see how well the body builds defenses against both viruses.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
mRNA seasonal flu/COVID-19 combination vaccine
What this could lead to
If successful, this could lead to a single annual shot that protects against both flu and COVID-19, simplifying vaccination.
What could go wrong
This is a very early (Phase 1) study focused on safety and immune response, not yet on preventing illness. The vaccine may not work as hoped or could cause side effects.
Disclaimer
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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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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
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Study contacts
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Contact
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Locations
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GSK Investigational Site
RECRUITINGAnniston, Alabama, 36207, United States
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GSK Investigational Site
RECRUITINGLittle Rock, Arkansas, 72204, United States
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GSK Investigational Site
RECRUITINGFair Oaks, California, 95628, United States
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GSK Investigational Site
RECRUITINGSan Diego, California, 92123, United States
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GSK Investigational Site
RECRUITINGMiami, Florida, 33186, United States
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GSK Investigational Site
RECRUITINGMiami Lakes, Florida, 33016, United States
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GSK Investigational Site
RECRUITINGWest Palm Beach, Florida, 33409, United States
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GSK Investigational Site
RECRUITINGStockbridge, Georgia, 30281, United States
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GSK Investigational Site
RECRUITINGAustin, Texas, 78705, United States
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Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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GSK Investigational Site
RECRUITINGCharlottesville, Virginia, 22911, United States
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GSK Investigational Site
RECRUITINGNewport News, Virginia, 23606, United States
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GSK Investigational Site
RECRUITINGSeattle, Washington, 98104, United States
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Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••