NCT02169674

Brief Summary

This study looks at protection in 10-11 and 15-16 year olds, immunized as infants with Hepatitis B (HB) vaccine to see if they still have residual protection against Hepatitis B disease. Adolescents will be invited to have a blood test and those without a minimal level of protection (antibody titer) will be offered a "test" vaccination to see if they still have capacity to recall an immune response. About one month later they will get another blood test to see if a booster response occurred. A few participants will have lost protection (no booster response) and will be offered a second HB vaccination to restore protection. Results of this study could influence the way in which children in British Columbia (BC) are immunized against HB disease.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
359

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Sep 2014

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 11, 2014

Completed
12 days until next milestone

First Posted

Study publicly available on registry

June 23, 2014

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2014

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2015

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2016

Completed
2.9 years until next milestone

Results Posted

Study results publicly available

March 21, 2019

Completed
Last Updated

March 21, 2019

Status Verified

December 1, 2018

Enrollment Period

11 months

First QC Date

June 11, 2014

Results QC Date

April 12, 2018

Last Update Submit

December 11, 2018

Conditions

Keywords

Hepatitis BVaccineImmunogenicity

Outcome Measures

Primary Outcomes (2)

  • Serum Anti-HBs Concentration 12 IU/L or Greater

    The primary outcome measure is the number of participants who have residual HB immunity 10 or 15 years after infant HB immunization, defined by a persistent anti-HBs titer \>12 IU/L.

    10 or more years after infant HB immunization

  • Recollection of Anti-HBs Titer >12 IU/L After Booster

    The primary outcome measure is the number of participants who have capacity to recall anti-HBs titer \>12 IU/L after HB booster vaccination.

    28 days after HB booster

Other Outcomes (3)

  • Geometric Mean Concentration of Anti-HBs

    Before and after booster immunization

  • Anti-HBc (Hepatitis B Core Antigen) Antibody

    Baseline sample

  • HBs Antigenemia

    Baseline

Study Arms (2)

10-11 Year-olds

ACTIVE COMPARATOR

Recombinant hepatitis B virus vaccine (EngerixB, GlaxoSmithKline Vaccines)

Biological: EngerixB, GlaxoSmithKline Vaccines

15-16 Year-olds

ACTIVE COMPARATOR

Recombinant hepatitis B virus vaccine (EngerixB, GlaxoSmithKline Vaccines)

Biological: EngerixB, GlaxoSmithKline Vaccines

Interventions

10-11 Year-olds15-16 Year-olds

Eligibility Criteria

Age10 Years - 16 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Age 10-11 or 15-16 years
  • Written informed assent provided by 10-11 year old participants and consent by their parent or legal guardian OR written informed consent provided by a 15-16 year old participant.
  • Subjects whom the investigator believes can and will comply with the requirements of the protocol.
  • General good health
  • Immunized in BC on the regular schedule with hepatitis B vaccine at approximately 2, 4, 6 months of age, based on an available immunization record.

You may not qualify if:

  • Hepatitis B vaccination regimen for infants born to a mother with hepatitis B infection (e.g. doses at birth and ages 1 and 6 months, with or without HB immune globulin at birth).
  • Receipt of any additional dose(s) of hepatitis B vaccine beyond infancy.
  • Systemic hypersensitivity to hepatitis B vaccine or severe reaction to any previous dose of hepatitis B vaccine.
  • Receipt of blood or blood product within 3 months prior to Visit 1.
  • Immune compromise resulting from disease or immunosuppressive systemic medication use within 3 months prior to Visit 1.
  • Chronic health condition requiring ongoing medical supervision e.g. cystic fibrosis.
  • Incapacity to provide fully informed assent, resulting from cognitive impairment.
  • Inadequate participant or parental (when the parent will provide consent) fluency in English to provide fully informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vaccine Evaluation Center (University of BC at Children's Hospital)

Vancouver, British Columbia, V5Z 4H4, Canada

Location

Related Publications (1)

  • Pinto M, Dawar M, Krajden M, Naus M, Scheifele DW. Will Infant Hepatitis B Vaccination Protect Into Adulthood?: Extended Canadian Experience After a 2-, 4- and 6-month Immunization Schedule. Pediatr Infect Dis J. 2017 Jun;36(6):609-615. doi: 10.1097/INF.0000000000001543.

Related Links

MeSH Terms

Conditions

Hepatitis B

Condition Hierarchy (Ancestors)

Blood-Borne InfectionsCommunicable DiseasesInfectionsHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitisLiver DiseasesDigestive System Diseases

Results Point of Contact

Title
Director of Vaccine Evaluation Center
Organization
Vaccine Evaluation Center

Study Officials

  • David Scheifele, MD

    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
PREVENTION
Intervention Model
PARALLEL
Model Details: A prospective, single-center, parallel group study of residual HBV seroprotection rates and the capacity of seronegative individuals to respond to a challenge dose of HBV vaccine.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

June 11, 2014

First Posted

June 23, 2014

Study Start

September 1, 2014

Primary Completion

August 1, 2015

Study Completion

May 1, 2016

Last Updated

March 21, 2019

Results First Posted

March 21, 2019

Record last verified: 2018-12

Locations