Study of how long HPV vaccine immunity lasts
Part of Cancer, Infections, Skin, Women’s health & pregnancy clinical trials.
This study checks how well the HPV (cancer-preventing) vaccine protection stays in your body over time. It may help confirm the vaccine’s “long-lasting” immune response and guide future vaccination confidence.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You (or your child) previously completed an HPV quadrivalent vaccine series through specific past studies
- If you are 9–17 years old at the Mianyang site, you and a parent/guardian must be willing to join
- You must give proof of identity if you enroll
- You must agree to regular follow-up visits and study steps (including blood draws)
- You cannot join other vaccine/drug clinical trials during this study (with limited exceptions)
- You must not have bleeding/clotting problems that would make blood collection unsafe
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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