Potential impact of a nonavalent HPV vaccine on the occurrence of HPV-related diseases in France

BMC Public Health. 2015 May 2;15:453. doi: 10.1186/s12889-015-1779-1.

Abstract

Background: Human Papillomavirus (HPV) infection is known to be associated with a number of conditions including cervical, vaginal, vulvar, penile, anal neoplasias and cancers, oropharynx cancers and genitals warts (GW). Two prophylactic vaccines are currently available: a bivalent vaccine designed to prevent HPV type 16 and 18 infection and a quadrivalent vaccine targeting HPV 6, 11, 16, and 18. In France, HPV vaccination is recommended in 11-14 year-old girls with a catch-up for girls aged 15-19. The objective of this study was to assess the potential impact of an HPV 6/11/16/18/31/33/45/52/58 nonavalent vaccine on anogenital and oropharyngeal HPV-related diseases in France.

Methods: HPV genotype distributions from 6 multicentric retrospective studies (EDiTH I to VI) were analyzed including 516 cases of invasive cervical cancers (ICC), 493 high-grade cervical neoplasias (CIN2/3), 397 low-grade squamous intraepithelial lesions (LSIL), 423 GW, 366 anal cancer and 314 oropharyngeal carcinomas. Low and high estimates of HPV vaccine impact were calculated as follows: low estimate: prevalence of HPV 6/11/16/18/31/33/45/52/58 genotypes alone or in association but excluding presence of another HPV type; high estimate: prevalence of HPV 6/11/16/18/31/33/45/52/58 genotypes alone or in association, possibly in presence of another HPV type.

Results: Estimates of potential impact varied from 85% (low estimate) to 92% (high estimate) for ICC, 77% to 90% for CIN2/3, 26% to 56% for LSIL, 69% to 90% for GW, 81% to 93% for anal cancer, and 41% to 44% for oropharyngeal carcinomas. Compared to the quadrivalent vaccine, the proportion of additional cases potentially prevented by the nonavalent vaccine was 9.9%-15.3% for ICC, 24.7%-33.3% for CIN2/3, 12.3%-22.7% for LSIL, 2.1%-5.4% for GW, 8.5%-10.4% for anal cancer, and 0.0%-1.6% for oropharyngeal carcinoma.

Conclusions: The nonavalent HPV vaccine showed significant increased potential impact compared to the HPV 6/11/16/18 quadrivalent vaccine for ICC, CIN2/3 and LSIL. Considering a 100% vaccine efficacy and high vaccine coverage, about 90% of ICC, CIN2/3, GW or anal cancer cases could be prevented by a nonavalent HPV vaccine in France.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alphapapillomavirus / genetics
  • Anus Neoplasms / prevention & control*
  • Anus Neoplasms / virology
  • Female
  • France / epidemiology
  • Genotype
  • Humans
  • Male
  • Oropharyngeal Neoplasms / prevention & control*
  • Oropharyngeal Neoplasms / virology
  • Papillomavirus Infections / prevention & control*
  • Papillomavirus Infections / virology
  • Papillomavirus Vaccines / administration & dosage*
  • Prevalence
  • Retrospective Studies
  • Uterine Cervical Neoplasms / prevention & control*
  • Uterine Cervical Neoplasms / virology

Substances

  • Papillomavirus Vaccines