Long Term Immune Memory Responses to HPV Vaccination Following 2 vs 3 Doses of Quad-HPV Vaccine (Merck08)

June 23, 2021 updated by: Manish Sadarangani, University of British Columbia

Long Term Immune Memory Responses to Human Papillomavirus (HPV) Vaccination Following 2 Verses 3 Doses of Quadrivalent HPV Vaccine

The overall aim of this study is to further understand the memory response to HPV vaccination in subjects who have received 2 versus 3 doses of quadrivalent HPV vaccine. Although memory responses can be detected shortly after immunization, the best approach to measure the long-lasting anamnestic response is to challenge with a booster dose years (> 5) after the original exposure.

Study Overview

Detailed Description

This is a single center, interventional study to evaluate long term memory response to Q-HPV vaccination and to natural infection. Memory response will be assessed by measuring seroprotection 8-10 years post Q-HPV vaccination and to challenge with a booster dose years after the original exposure to measure the long-lasting anamnestic response.

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • Phase 4

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

    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 4H4
        • Vaccine Evaluation Center, BC Children's Hospital Research Institute

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

17 years to 35 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Written informed consent provided by the participant.
  • Participant whom the investigator believes can and will comply with the requirements of the protocol.
  • General good health.
  • Immunized with Q-HPV vaccine between the ages of 9-13 or 16 to 26 years on the BCGov01 study or the BC provincial program.
  • Participant who is of child bearing potential must be willing to ensure that they or their partner use effective contraception during the study. Examples of effective methods of birth control include:

    • Abstinence (no sexual activity)
    • Hormonal contraceptives including oral, injectable, implants & skin patches
    • Intrauterine device (IUD)
    • Male partner sterilization
    • Male condom combined with a vaginal spermicide (foam, gel, film, cream or suppository)
    • Male condom combined with a female diaphragm, whether with or without a vaginal spermicide (foam, gel, cream, or suppository)
    • Adequate contraception does not apply to participants with same sex partners, when this is their preferred and usual lifestyle

Exclusion Criteria:

  • Received more than 3 doses of Q-HPV vaccine
  • Received any doses of HPV9 vaccine
  • Systemic hypersensitivity to Q-HPV vaccine or HPV9 vaccine or severe reaction to any previous dose of Q-HPV vaccine.
  • Receipt of blood or blood product within 3 months prior to Visit 1.
  • Receipt of a live vaccine within 28 days or an inactive vaccine within 14 days of Visit 1
  • Immune compromise resulting from disease or immunosuppressive systemic medication use within 3 months prior to Visit 1.
  • Inadequate participant fluency in English to provide fully informed consent.
  • Participant who is currently pregnant or planning a pregnancy during the course of the trial

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: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group 1
Group 1: girls who received 2 doses of Q-HPV vaccine at 0, 6 month schedule 8-10 years ago when they were between 9-13 years of age at the time of the first dose. The intervention of a single dose of licensed Gardasil 9 vaccine (Human Papillomavirus 9-valent Vaccine, Recombinant) will be administered at Day 0 of the study.
All groups will receive a single dose of the Gardasil9 vaccine at Visit 1/Day 0 of the study.
Other Names:
  • Gardasil9
Active Comparator: Group 2
Group 2: girls who received 3 doses of Q-HPV vaccine at 0, 2, 6 month schedule 8-10 years ago when they were between 9-13 years of age at the time of the first dose. The intervention of a single dose of licensed Gardasil 9 vaccine (Human Papillomavirus 9-valent Vaccine, Recombinant) will be administered at Day 0 of the study.
All groups will receive a single dose of the Gardasil9 vaccine at Visit 1/Day 0 of the study.
Other Names:
  • Gardasil9
Active Comparator: Group 3
Group 3: young women who received 3 doses of Q-HPV vaccine at 0, 2, 6 month schedule 8-10 years ago when they were between 16-26 years of age at the time of the first dose. The intervention of a single dose of licensed Gardasil 9 vaccine (Human Papillomavirus 9-valent Vaccine, Recombinant) will be administered at Day 0 of the study.
All groups will receive a single dose of the Gardasil9 vaccine at Visit 1/Day 0 of the study.
Other Names:
  • Gardasil9

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
B Memory Cell Response (% of Memory B Cells That Are Antigen-specific)
Time Frame: At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the B memory cell populations between girls that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose after 120 months
At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
Plasmablast Response (% of All B Cells That Are Plasmablasts)
Time Frame: At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the plasmablast populations between girls that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose after 120 months
At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Variable Gene Usage (Comparison of the Nucleotide Sequences of Antigen-specific Antibody Heavy and Light Chain Variable Region Sequences)
Time Frame: At Day 7 and Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the extent of somatic hypermutation and the variable gene usage between girls that received either a primary 2 or 3 dose series
At Day 7 and Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
Serum Antibody Response (cLIA) - Geometric Mean Titer
Time Frame: At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the serum antibody responses (cLIA) to HPV 6, 11, 16 & 18 at month 120 in females that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose
At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine
Serum Antibody Response (cLIA) - Geometric Mean Titer
Time Frame: At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the serum antibody responses (cLIA) to HPV 6, 11, 16 & 18 at month 120 in females that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose
At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
Serum Antibody Response (Total IgG) - Geometric Mean Titer
Time Frame: At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the serum antibody responses (total IgG) to HPV 6, 11, 16 & 18 at month 120 in females that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose
At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine
Serum Antibody Response (Total IgG) - Geometric Mean Titer
Time Frame: At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine
To compare the serum antibody responses (total IgG) to HPV 6, 11, 16 & 18 at month 120 in females that received either a primary 2 or 3 dose series, who are then challenged with a subsequent dose
At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Tobi Kollmann, MD PhD, Vaccine Evaluation Center, University of British Columbia
  • Principal Investigator: Manish Sadarangani, BM BCh DPhil, Vaccine Evaluation Center, University of British Columbia

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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)

September 11, 2017

Primary Completion (Actual)

May 15, 2019

Study Completion (Actual)

May 15, 2019

Study Registration Dates

First Submitted

August 19, 2016

First Submitted That Met QC Criteria

November 15, 2016

First Posted (Estimate)

November 18, 2016

Study Record Updates

Last Update Posted (Actual)

June 25, 2021

Last Update Submitted That Met QC Criteria

June 23, 2021

Last Verified

June 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • H16-00700

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

If IPD is required, please contact the study team for further discussions- any sharing will be dependent on alignment with original informed consent obtained from study participants and in agreement with the study team.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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