HPV antibody levels and clinical efficacy following administration of a prophylactic quadrivalent HPV vaccine

Elmar A. Joura, Susanne K. Kjaer, Cosette M. Wheeler, Kristján Sigurdsson, Ole Erik Iversen, Mauricio Hernandez-Avila, Gonzalo Perez, Darron R. Brown, Laura A. Koutsky, Eng Hseon Tay, Patricia García, Kevin A. Ault, Suzanne M. Garland, Sepp Leodolter, Sven Eric Olsson, Grace W.K. Tang, Daron Gale Ferris, Jorma Paavonen, Matti Lehtinen, Marc StebenXavier Bosch, Joakim Dillner, Robert J. Kurman, Slawomir Majewski, Nubia Muñoz, Evan R. Myers, Luisa L. Villa, Frank J. Taddeo, Christine Roberts, Amha Tadesse, Janine Bryan, Lisa C. Lupinacci, Katherine E.D. Giacoletti, Shuang Lu, Scott Vuocolo, Teresa M. Hesley, Richard M. Haupt, Eliav Barr

Research output: Contribution to journalArticlepeer-review

166 Scopus citations


The efficacy of the quadrivalent Human Papillomavirus (HPV) vaccine is thought to be mediated by humoral immunity. We evaluated the correlation between quadrivalent HPV vaccine-induced serum anti-HPV responses and efficacy. 17,622 women were vaccinated at day 1, and months 2 and 6. At day 1 and at 6-12 months intervals for up to 48 months, subjects underwent Papanicolaou and genital HPV testing. No immune correlate of protection could be found due to low number of cases. Although 40% of vaccine subjects were anti-HPV 18 seronegative at end-of-study, efficacy against HPV 18-related disease remained high (98.4%; 95% CI: 90.5-100.0) despite high attack rates in the placebo group. These results suggest vaccine-induced protection via immune memory, or lower than detectable HPV 18 antibody titers.

Original languageEnglish (US)
Pages (from-to)6844-6851
Number of pages8
Issue number52
StatePublished - Dec 9 2008


  • Human Papillomavirus
  • Humoral immunity
  • Immune memory

ASJC Scopus subject areas

  • Molecular Medicine
  • General Immunology and Microbiology
  • General Veterinary
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases


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