Boosted flu shot tested in hospital workers – could it offer better protection?
NCT ID NCT06054269
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed Phase 3 trial tested whether an adjuvanted flu vaccine (FLUAD Quadrivalent) triggers a stronger immune response than a standard flu vaccine (FluQuadri) in 192 healthcare workers in Lima, Peru. Participants received one dose of either vaccine, and researchers measured antibody levels at 28 days and 6 months after vaccination. The goal is to see if the adjuvanted version offers better protection against influenza.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
FLUAD Quadrivalent (adjuvanted influenza vaccine)
What this could lead to
If it works, this could show that an adjuvanted flu vaccine provides stronger or longer-lasting protection for healthcare workers than the standard vaccine.
What could go wrong
This is a completed Phase 3 trial with 192 participants, so results are reliable but may not apply to other populations or flu seasons. Adjuvanted vaccines can cause more local side effects like soreness.
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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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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Locations
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Hospital Nacional Arzobispo Loayza
Lima, 15082, Peru
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Hospital Nacional Cayetano Heredia
Lima, 15102, Peru