Immunogenicity of Gardasil and Twinrix and the Effect of a Dose of Gardasil or Cervarix Given 42 Months Later.

NCT ID: NCT01456715

Last Updated: 2020-03-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

418 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-09-30

Study Completion Date

2018-12-31

Brief Summary

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Two human papillomavirus vaccines are now commercially available.

No clinical data exist regarding:

* The immunogenicity and safety of Gardasil and Twinrix when co-administered.
* The immunogenicity and safety of Cervarix when administered to subjects previously vaccinated with Gardasil.

The main objective of the first phase of this clinical trial was:

• To assess and compare the immunogenicity of Gardasil and Twinrix Junior when co-administered or administered at one month interval according to a 0, 6 month schedule to 9-10 year-old girls.

The main objective of the seconde phase of this clinical trial is:

• To determine the effect of a booster dose of Gardasil or Cervarix on HPV antibodies when given 42 months post-vaccination of 9-10 year-old girls with two doses of Gardasil.

Study Design \& Duration:

Experimental Design: Blind for the third HPV vaccine dose, randomized, single centre study with two treatment groups.

Duration of the study:

Participants will be followed for the duration of 10 years post-primary vaccination.

Number of Centres:

One Center.

Detailed Description

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Conditions

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Human Papillomavirus

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Gardasil, Immunogenicity, Booster dose.

Group Type ACTIVE_COMPARATOR

Gardasil vaccine, Immunogenicity, Booster dose.

Intervention Type BIOLOGICAL

Gardasil vaccine given according to the 0,6 months schedule and a booster dose of Gardasil given 42 months later.

Cervarix, Immunogenicity, Booster dose.

Group Type EXPERIMENTAL

Cervarix Vaccine, Immunogenicity, Booster Dose.

Intervention Type BIOLOGICAL

Gardasil vaccine given according to the 0,6 months schedule and a booster dose of Cervarix given 42 months later.

Interventions

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Gardasil vaccine, Immunogenicity, Booster dose.

Gardasil vaccine given according to the 0,6 months schedule and a booster dose of Gardasil given 42 months later.

Intervention Type BIOLOGICAL

Cervarix Vaccine, Immunogenicity, Booster Dose.

Gardasil vaccine given according to the 0,6 months schedule and a booster dose of Cervarix given 42 months later.

Intervention Type BIOLOGICAL

Other Intervention Names

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HPV vaccine HPV vaccine.

Eligibility Criteria

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Inclusion Criteria

* In 2008-2009 received two doses of Gardasil at the age of 9-10 years according to 0, 6 months schedule.

Exclusion Criteria

* Received less than two doses of Gardasil or received an HPV vaccine outside the study protocol.
Minimum Eligible Age

12 Years

Maximum Eligible Age

14 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Laval University

OTHER

Sponsor Role lead

Responsible Party

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Vladimir Gilca

Principal investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Vladimir Gilca, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

INSPQ, CHUQ-CHUL, Laval University

Locations

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Laval University Research Hospital Center

Québec, , Canada

Site Status

Countries

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Canada

Other Identifiers

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9427-L1802/1-21C

Identifier Type: OTHER

Identifier Source: secondary_id

122.05.01

Identifier Type: -

Identifier Source: org_study_id

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