Gynecologic oncology | 2019

Nine-valent HPV vaccine efficacy against related diseases and definitive therapy: comparison with historic placebo population.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Abstract


OBJECTIVE\nNine-valent human papillomavirus (9vHPV) vaccine efficacy against disease and cervical surgeries related to all nine vaccine components was assessed compared with a historic placebo population. This was not assessed in the 9vHPV vaccine efficacy trial since the trial was quadrivalent HPV (qHPV) vaccine-controlled, efficacy was measured for the five HPV types covered only by 9vHPV vaccine (HPV31/33/45/52/58), but not the four types covered by both vaccines (HPV6/11/16/18).\n\n\nMETHODS\nThree international, randomized, double-blind studies were conducted using the same methodology. In the 9vHPV vaccine study (NCT00543543), 7106 and 7109 women received 9vHPV or qHPV vaccine, respectively. In the historic qHPV vaccine studies (FUTURE I [NCT00092521] and II [NCT00092534]), 8810 and 8812 women received qHPV vaccine or placebo, respectively, based on the same eligibility criteria. Cervical cytological testing was performed regularly. Biopsy or definitive therapy specimens were assessed for HPV DNA.\n\n\nRESULTS\nAmong women negative for 14 HPV types prior to vaccination, incidence of high-grade cervical disease (9vHPV, n\u202f=\u202f2 cases; placebo, n\u202f=\u202f141 cases) and cervical surgery (9vHPV, n\u202f=\u202f3 cases; placebo, n\u202f=\u202f170 cases) related to the nine HPV types was reduced by 98.2% (95% confidence interval [CI], 93.6-99.7) and 97.8% (95% CI, 93.4-99.4), respectively. The 9vHPV vaccine did not prevent disease related to vaccine HPV types detected at baseline, but significantly reduced cervical, vulvar, and vaginal diseases related to other vaccine HPV types.\n\n\nCONCLUSIONS\nEffective implementation of the 9vHPV vaccine may substantially reduce the burden of HPV-related diseases and related medical procedures.\n\n\nTRIAL REGISTRATIONS\nclinicaltrials.gov: NCT00543543, NCT00092521, NCT00092534.

Volume 154 1
Pages \n 110-117\n
DOI 10.1016/j.ygyno.2019.03.253
Language English
Journal Gynecologic oncology

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