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You are here: Home / RESEARCH . . . . / Gardasil/Silgard Vaccine / Gardasil/Silgard Efficacy / Effect of the human papillomavirus (HPV) quadrivalent vaccine in a subgroup of women with cervical and vulvar disease: retrospective pooled analysis of trial data

Effect of the human papillomavirus (HPV) quadrivalent vaccine in a subgroup of women with cervical and vulvar disease: retrospective pooled analysis of trial data

April 2, 2012 By Norma Leave a Comment

Abstract

Objectives To determine the effect of human papillomavirus (HPV) quadrivalent vaccine on the risk of developing subsequent disease after an excisional procedure for cervical intraepithelial neoplasia or diagnosis of genital warts, vulvar intraepithelial neoplasia, or vaginal intraepithelial neoplasia.

Design Retrospective analysis of data from two international, double blind, placebo controlled, randomised efficacy trials of quadrivalent HPV vaccine (protocol 013 (FUTURE I) and protocol 015 (FUTURE II)).

Setting Primary care centres and university or hospital associated health centres in 24 countries and territories around the world.

Participants Among 17 622 women aged 15–26 years who underwent 1:1 randomisation to vaccine or placebo, 2054 received cervical surgery or were diagnosed with genital warts, vulvar intraepithelial neoplasia, or vaginal intraepithelial neoplasia.

Intervention Three doses of quadrivalent HPV vaccine or placebo at day 1, month 2, and month 6.

Main outcome measures Incidence of HPV related disease from 60 days after treatment or diagnosis, expressed as the number of women with an end point per 100 person years at risk.

Results A total of 587 vaccine and 763 placebo recipients underwent cervical surgery. The incidence of any subsequent HPV related disease was 6.6 and 12.2 in vaccine and placebo recipients respectively (46.2% reduction (95% confidence interval 22.5% to 63.2%) with vaccination). Vaccination was associated with a significant reduction in risk of any subsequent high grade disease of the cervix by 64.9% (20.1% to 86.3%). A total of 229 vaccine recipients and 475 placebo recipients were diagnosed with genital warts, vulvar intraepithelial neoplasia, or vaginal intraepithelial neoplasia, and the incidence of any subsequent HPV related disease was 20.1 and 31.0 in vaccine and placebo recipients respectively (35.2% reduction (13.8% to 51.8%)).

Conclusions Previous vaccination with quadrivalent HPV vaccine among women who had surgical treatment for HPV related disease significantly reduced the incidence of subsequent HPV related disease, including high grade disease.

Trial registrations NCT00092521 and NCT00092534

  1. Authors: Elmar A Joura, associate professor1,  Suzanne M Garland, director, professor2, Jorma Paavonen, professor, physician in chief3, Daron G Ferris, professor4, Gonzalo Perez, professor5, Kevin A Ault, associate professor6, Warner K Huh, associate professor7, Heather L Sings, director of Global Scientific and Medical Publications8, Margaret K. James, senior biometrician8, Richard M Haupt, executive director of clinical research8 for the FUTURE I and II Study Group

Author Affiliations

  1. Correspondence to: E A Joura elmar.joura@meduniwien.ac.at
  • Accepted 13 January 2012, BMJ 2012;344:e1401

Access entire article here.

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Filed Under: Gardasil/Silgard Efficacy, Human Papillomavirus Research Tagged With: human papilomavirus, quadrivalent vaccine, retrospective analysis

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HPV Vaccine VAERS Reports

Description 12/14/2019  TOTAL
Disabled 3,092
Deaths 523
Did Not Recover 13,072
Abnormal Smear 695
Cervical Cancer 186
Infertility 52
Life-threatening 1,001
Emergency Room 15,419
Hospitalized 6,448
Extended Hosp. Stay 304
Serious 9,497
Total Adverse Events 64,270

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