Clinical Trial: Persistence of Immune Response Six Years After One Dose of 9vHPV Vaccine Among Male and Female Students

U.S., Sept. 5 -- ClinicalTrials.gov registry received information related to the study (NCT07156084) titled 'Persistence of Immune Response Six Years After One Dose of 9vHPV Vaccine Among Male and Female Students' on Aug. 02.

Brief Summary: Since the 2019-2020 school year, the province of Quebec (Canada) has been administering one dose of nonavalent (9vHPV) vaccine to students of all genders in Grade 4 of elementary school through the school-based program.

Little data on the immunogenicity (antibody production) and long-term efficacy of a single dose of the vaccine are available, particularly in boys.

The primary objective of this study is to assess the persistence of HPV antibodies six years after the administration of a single dose of ...