NCT02968420

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Sep 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 19, 2016

Completed
3 months until next milestone

First Posted

Study publicly available on registry

November 18, 2016

Completed
10 months until next milestone

Study Start

First participant enrolled

September 11, 2017

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 15, 2019

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

June 25, 2021

Completed
Last Updated

June 25, 2021

Status Verified

June 1, 2021

Enrollment Period

1.7 years

First QC Date

August 19, 2016

Results QC Date

January 6, 2021

Last Update Submit

June 23, 2021

Conditions

Outcome Measures

Primary Outcomes (2)

  • B Memory Cell Response (% of Memory B Cells That Are Antigen-specific)

    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)

    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 Outcomes (5)

  • Variable Gene Usage (Comparison of the Nucleotide Sequences of Antigen-specific Antibody Heavy and Light Chain Variable Region Sequences)

    At Day 7 and Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine

  • Serum Antibody Response (cLIA) - Geometric Mean Titer

    At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine

  • Serum Antibody Response (cLIA) - Geometric Mean Titer

    At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine

  • Serum Antibody Response (Total IgG) - Geometric Mean Titer

    At Day 7 post challenge dose of Human Papillomavirus 9-Valent vaccine

  • Serum Antibody Response (Total IgG) - Geometric Mean Titer

    At Day 30 post challenge dose of Human Papillomavirus 9-Valent vaccine

Study Arms (3)

Group 1

ACTIVE COMPARATOR

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.

Biological: Human Papillomavirus 9-valent Vaccine, Recombinant

Group 2

ACTIVE COMPARATOR

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.

Biological: Human Papillomavirus 9-valent Vaccine, Recombinant

Group 3

ACTIVE COMPARATOR

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.

Biological: Human Papillomavirus 9-valent Vaccine, Recombinant

Interventions

All groups will receive a single dose of the Gardasil9 vaccine at Visit 1/Day 0 of the study.

Also known as: Gardasil9
Group 1Group 2Group 3

Eligibility Criteria

Age17 Years - 35 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vaccine Evaluation Center, BC Children's Hospital Research Institute

Vancouver, British Columbia, V5Z 4H4, Canada

Location

Related Publications (2)

  • Olsson SE, Villa LL, Costa RL, Petta CA, Andrade RP, Malm C, Iversen OE, Hoye J, Steinwall M, Riis-Johannessen G, Andersson-Ellstrom A, Elfgren K, von Krogh G, Lehtinen M, Paavonen J, Tamms GM, Giacoletti K, Lupinacci L, Esser MT, Vuocolo SC, Saah AJ, Barr E. Induction of immune memory following administration of a prophylactic quadrivalent human papillomavirus (HPV) types 6/11/16/18 L1 virus-like particle (VLP) vaccine. Vaccine. 2007 Jun 21;25(26):4931-9. doi: 10.1016/j.vaccine.2007.03.049. Epub 2007 Apr 20.

    PMID: 17499406BACKGROUND
  • Carter JJ, Smith RA, Scherer EM, Skibinski DAG, Sankaranarayanan S, Luxembourg A, Kollmann T, Marty KD, Sadarangani M, Dobson S, Galloway DA. Term immune memory responses to human papillomavirus (HPV) vaccination following 2 versus 3 doses of HPV vaccine. Vaccine. 2025 Mar 19;50:126817. doi: 10.1016/j.vaccine.2025.126817. Epub 2025 Feb 5.

MeSH Terms

Interventions

Human Papillomavirus Recombinant Vaccine nonavalent

Results Point of Contact

Title
Dr. Manish Sadarangani
Organization
Vaccine Evaluation Center

Study Officials

  • 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

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 19, 2016

First Posted

November 18, 2016

Study Start

September 11, 2017

Primary Completion

May 15, 2019

Study Completion

May 15, 2019

Last Updated

June 25, 2021

Results First Posted

June 25, 2021

Record last verified: 2021-06

Data Sharing

IPD Sharing
Will not share

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.

Locations