Could a third MMR shot boost waning immunity in adults?

NCT ID NCT05923970

First seen Mar 23, 2026 · Last updated May 07, 2026 · Updated 6 times

Summary

This study looks at whether a third dose of the MMR vaccine can improve immune protection in women whose antibody levels have dropped below protective levels after the standard two doses. Researchers will measure both antibody and cell-mediated immune responses in 200 pregnant women in Alberta who have already received a third dose through routine care. The goal is to understand if an extra dose is beneficial, not to test a new treatment.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of Alberta

    RECRUITING

    Edmonton, Alberta, T6G2R3, Canada

    Contact Phone: •••-•••-•••• Email: •••••@•••••

Conditions

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