Study Assessing Reduced HPV Infectivity and Transmission in HPV-Positive Women Following Vaccination With 9vHPV

Summary

This is a randomized, open-label trial, to assess whether a single dose of HPV nonavalent vaccine, administered to HIV uninfected, unvaccinated women with high risk HPV16/18/31/33/45/52 or 58 can decrease the infectivity of shed HPV viruses. Our hypothesis is that vaccination will have little or no impact on HPV sample positivity by DNA PCR since the viral particles will continue to be produced and released, but that particles will be neutralized by vaccine-induced antibodies, thereby reducing their infective capacity. Cervical samples will be collected at randomisation and at 6 months, to compare infectivity of shed HPV viruses.

Timeline

Start

2026-02-01

Primary completion

2027-02-01

Completion

2027-02-01

Publications

• Background Hooper R, Forbes A, Hemming K, Takeda A, Beresford L. Analysis of cluster randomised trials with an assessment of outcome at baseline. BMJ. 2018 Mar 20;360:k1121. doi: 10.1136/bmj.k1121. No abstract available.
• Background Houlihan CF, Baisley K, Bravo IG, Kapiga S, de Sanjose S, Changalucha J, Ross DA, Hayes RJ, Watson-Jones D. Rapid acquisition of HPV around the time of sexual debut in adolescent girls in Tanzania. Int J Epidemiol. 2016 Jun;45(3):762-73. doi: 10.1093/ije/dyv367. Epub 2016 Mar 4.
• Background Centers for Disease Control and Prevention. (2025, 6 de marzo). Human Papillomavirus (HPV) Vaccine Safety. https://www.cdc.gov/vaccine-safety/vaccines/hpv.html
• Background Watson-Jones D, Baisley K, Brown J, Kavishe B, Andreasen A, Changalucha J, Mayaud P, Kapiga S, Gumodoka B, Hayes RJ, de Sanjose S. High prevalence and incidence of human papillomavirus in a cohort of healthy young African female subjects. Sex Transm Infect. 2013 Aug;89(5):358-65. doi: 10.1136/sextrans-2012-050685. Epub 2013 Mar 13.
• Background Centers for Disease Control and Prevention. (2024, 9 de julio). HPV Vaccine Safety and Effectiveness Data. https://www.cdc.gov/hpv/hcp/vaccination-considerations/safety-and-effectiveness-data.html
• Background Chow EP, Read TR, Wigan R, Donovan B, Chen MY, Bradshaw CS, Fairley CK. Ongoing decline in genital warts among young heterosexuals 7 years after the Australian human papillomavirus (HPV) vaccination programme. Sex Transm Infect. 2015 May;91(3):214-9. doi: 10.1136/sextrans-2014-051813. Epub 2014 Oct 10.
• Background Whitworth HS, Mounier-Jack S, Choi EM, Gallagher KE, Howard N, Kelly H, Mbwanji G, Kreimer AR, Basu P, Barnabas R, Drolet M, Brisson M, Watson-Jones D. Efficacy and immunogenicity of a single dose of human papillomavirus vaccine compared to multidose vaccination regimens or no vaccination: An updated systematic review of evidence from clinical trials. Vaccine X. 2024 Apr 16;19:100486. doi: 10.1016/j.jvacx.2024.100486. eCollection 2024 Aug.
• Background Kamolratanakul S, Pitisuttithum P. Human Papillomavirus Vaccine Efficacy and Effectiveness against Cancer. Vaccines (Basel). 2021 Nov 30;9(12):1413. doi: 10.3390/vaccines9121413.
• Background Sung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, Jemal A, Bray F. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021 May;71(3):209-249. doi: 10.3322/caac.21660. Epub 2021 Feb 4.
• Background Teblick L, Lipovac M, Molenberghs F, Delputte P, De Vos WH, Vorsters A. HPV-specific antibodies in female genital tract secretions captured via first-void urine retain their neutralizing capacity. Hum Vaccin Immunother. 2024 Dec 31;20(1):2330168. doi: 10.1080/21645515.2024.2330168. Epub 2024 Apr 3.
• Background Smahelova J, Hamsikova E, Ludvikova V, Vydrova J, Traboulsi J, Vencalek O, Lukes P, Tachezy R. Outcomes After Human Papillomavirus Vaccination in Patients With Recurrent Respiratory Papillomatosis: A Nonrandomized Clinical Trial. JAMA Otolaryngol Head Neck Surg. 2022 Jul 1;148(7):654-661. doi: 10.1001/jamaoto.2022.1190.
• Background Wenande E, Hastrup A, Wiegell S, Philipsen PA, Thomsen NB, Demehri S, Kjaer SK, Haedersdal M. Human Papillomavirus Vaccination and Actinic Keratosis Burden: The VAXAK Randomized Clinical Trial. JAMA Dermatol. 2025 Jun 1;161(6):605-614. doi: 10.1001/jamadermatol.2025.0531.
• Background Drolet M, Benard E, Perez N, Brisson M; HPV Vaccination Impact Study Group. Population-level impact and herd effects following the introduction of human papillomavirus vaccination programmes: updated systematic review and meta-analysis. Lancet. 2019 Aug 10;394(10197):497-509. doi: 10.1016/S0140-6736(19)30298-3. Epub 2019 Jun 26.

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Indications