This phase IV trial studies how well human papillomavirus (HPV) vaccine therapy works in interrupting progression in patients with high-grade vulvar or anal lesions. Vaccines made from HPV peptides or antigens may help the body build an effective immune response to kill tumor cells and decrease the chance of vulvar or anal lesions to progress or come back.
Additional locations may be listed on ClinicalTrials.gov for NCT03051516.
See trial information on ClinicalTrials.gov for a list of participating sites.
PRIMARY OBJECTIVES:
I. Test if the recombinant human papillomavirus nonavalent vaccine (9vHPV vaccine) delivered after treatment for high grade squamous intraepithelial lesion (HSIL) reduces the risk of persistent high-risk infection by 50% in the vaccinated versus (vs.) placebo arms.
II. Evaluate safety of the HPV vaccine in HSIL participants.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive recombinant human papillomavirus nonavalent vaccine intramuscularly (IM) at baseline, 2 months, and 6 months.
ARM II: Patients receive placebo IM at baseline, 2 months, and 6 months.
After completion of study treatment, patients are followed up at months 7, 12, 18, 24, 36, and 42.
Lead OrganizationFred Hutch/University of Washington/Seattle Children's Cancer Consortium
Principal InvestigatorAnna Wald