HPV booster study tracks immunity years later
NCT ID NCT04688476
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study checks how long protection from a single HPV vaccine booster lasts in children who got the shot at age 9-11. Researchers will measure antibody levels in blood samples taken up to 6 years after the first dose. The goal is to understand if one booster provides lasting immunity against HPV-related cancers.
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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
Locations
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University of Arizona
Tucson, Arizona, 85724, United States
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University of California, Los Angeles
Los Angeles, California, 90095, United States