ICI-VPH: Impact of HPV Immunisation Schedules Against HPV (ICI-VPH)

April 21, 2022 updated by: Chantal Sauvageau, CHU de Quebec-Universite Laval

ICI-VPH: Impact Des Calendriers d'Immunisation Contre Les HPV

This randomised clinical trial aims to determine whether an immunization schedule comprising two doses of Gardasil administered six months apart is non-inferior to a schedule comprising three doses administered at 0, 6 and 60 months for the prevention of HPV-16 and HPV-18 infections that persist for at least six months, up to ten years after the initial vaccination.

The study hypothesis is that the two-dose schedule would offer similar protection as that of a three-dose schedule against persistent HPV-16/18 infections.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

3364

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
      • Québec, Canada, G1R 2J6
        • Centre Hospitalier Universitaire de Québec, CHU de Québec
    • Quebec
      • Montréal, Quebec, Canada, H2W 1T8
        • Centre Hospitalier Uiversitaire de Montréal

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 16 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Having received two doses of Gardasil in 2008-2009, 2009-2010,2010-2011 or 2011-2012 according to 0, 6 months Schedule (between 4 and 12 months)
  • Resident of the regions chosen for the study

Exclusion Criteria:

  • Being considered immunosuppressed at time of vaccination (9-10 years-old) or at recruitment visit
  • Being pregnant at recruitment visit

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: 2 dose of quadrivalent HPV vaccine
The participants who have already received 2 doses of the quadrivalent HPV vaccine (0, 6 months schedule) 5 years before recruitment will not receive an additional dose.
Experimental: 3 doses of quadrivalent HPV vaccine
The participants will receive a 3rd dose of quadrivalent HPV vaccine at recruitment visit, which is 5 years after having received two doses of vaccine given 6 months apart in grade 4 (0, 6, 60 months Schedule)
Biological: Quadrivalent HPV vaccine
One dose of Gardasil administered in the intervention group
Other Names:
  • Gardasil

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Incidence of persistent HPV-16/18 infections
Time Frame: 5 years after recruitment visite
5 years after recruitment visite

Secondary Outcome Measures

Outcome Measure
Time Frame
Geometric mean titres of antibodies and seropositivity for HPV types 6, 11, 16 and 18
Time Frame: 5 years after recruitment visit
5 years after recruitment visit

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

CHU de Quebec-Universite Laval

Collaborators

Centre hospitalier de l'Université de Montréal (CHUM)
Institut National en Santé Publique du Québec
Ministere de la Sante et des Services Sociaux

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 1, 2013

Primary Completion (Actual)

December 1, 2021

Study Completion (Actual)

December 1, 2021

Study Registration Dates

First Submitted

December 9, 2013

First Submitted That Met QC Criteria

December 9, 2013

First Posted (Estimate)

December 12, 2013

Study Record Updates

Last Update Posted (Actual)

April 28, 2022

Last Update Submitted That Met QC Criteria

April 21, 2022

Last Verified

April 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ICI-VPH-1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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