Third MMR dose may revive waning immunity in adults
NCT ID NCT05923970
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a third dose of the MMR vaccine can improve immunity in adults whose antibody levels have dropped below protective levels. Researchers will measure immune responses in 200 women who already received a third dose through routine care. The goal is to understand if an extra shot helps maintain protection against measles, mumps, rubella, and varicella.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could show that a third MMR dose helps restore protection in adults whose immunity has faded over time.
What could go wrong
This is a small observational study (200 participants) that does not give the vaccine itself. Results may not apply to everyone, and it only measures immune markers, not actual infection prevention.
Disclaimer
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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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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University of Alberta
RECRUITINGEdmonton, Alberta, T6G2R3, Canada
Contact Phone: •••-•••-•••• Email: •••••@•••••