Could a delayed booster still shield against HPV?

NCT ID NCT02568566

First seen Mar 18, 2026 · Last updated May 15, 2026 · Updated 13 times

Summary

This study looks at whether giving the HPV vaccine on a different schedule—with a booster shot delayed by a year or more—still protects against the virus. It involves 201 healthy 9-11 year old girls and boys. Researchers will measure antibody levels over two years to see if the immune response is strong enough.

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Contacts and locations

Locations

  • Banner University Medical Center - Tucson

    Tucson, Arizona, 85719, United States

  • UCLA / Jonsson Comprehensive Cancer Center

    Los Angeles, California, 90095, United States

Conditions

Explore the condition pages connected to this study.