The effect of prophylactic hpv vaccines on oral and oropharyngeal hpv infection—a systematic review

Kristoffer Juul Nielsen, Kathrine Kronberg Jakobsen, Jakob Schmidt Jensen, Christian Grønhøj, Christian Von Buchwald*

*Corresponding author for this work

Research output: Contribution to journalReviewResearchpeer-review

46 Citations (Scopus)
17 Downloads (Pure)

Abstract

Human papillomavirus (HPV) imposes an increased risk of developing cervical, anal and oropharyngeal cancer. In the Western world, HPV infection is currently the major cause of oropharyngeal cancer. The effectiveness of HPV vaccines for oral or oropharyngeal HPV infection is yet to be determined. This study conducted a systematic literature search in Pubmed and Embase. Studies investigating the impact of HPV vaccines on oral or oropharyngeal HPV infection were enrolled. This review reports the relative prevention percentage (RPP), including a risk of bias assessment as well as a quality assessment study. Nine studies were included (48,777 participants): five cross-sectional studies; one randomized community trial study (RCT); one longitudinal cohort study; and two case-control studies. A significant mean RPP of 83.9% (66.6–97.8%) was calculated from the cross-sectional studies, 82.4% in the included RCT and 83% in the longitudinal cohort study. Further, two case-control studies that measured antibody response in participants immunized with HPV vaccines were included. Respectively, 100% and 93.2% of participants developed HPV-16 Immunoglobulin G (IgG) antibodies in oral fluids post-vaccination. Analysis of the studies identified a significant decrease in vaccine-type oral or oropharyngeal HPV infections in study participants immunized with HPV vaccines across study designs and heterogenous populations. Further, a significant percentage of participants developed IgG antibodies in oral fluid post-vaccination.

Original languageEnglish
Article number1339
JournalViruses
Volume13
Issue number7
Number of pages9
ISSN1999-4915
DOIs
Publication statusPublished - Jul 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Head and neck cancer
  • Human papillomavirus
  • Oncology
  • Oropharyngeal cancer
  • Vaccines

Cite this