Hepatitis B Booster Study in Adolescence
Sustaining Protection Against Hepatitis B From Infancy to Adulthood: Assessing the Case for a Booster Dose in Adolescence
1 other identifier
interventional
359
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Sep 2014
1 active site
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
CompletedFirst Posted
Study publicly available on registry
June 23, 2014
CompletedStudy Start
First participant enrolled
September 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2016
CompletedResults Posted
Study results publicly available
March 21, 2019
CompletedMarch 21, 2019
December 1, 2018
11 months
June 11, 2014
April 12, 2018
December 11, 2018
Conditions
Keywords
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 COMPARATORRecombinant hepatitis B virus vaccine (EngerixB, GlaxoSmithKline Vaccines)
15-16 Year-olds
ACTIVE COMPARATORRecombinant hepatitis B virus vaccine (EngerixB, GlaxoSmithKline Vaccines)
Interventions
Eligibility Criteria
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
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.
PMID: 28134742DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Director of Vaccine Evaluation Center
- Organization
- Vaccine Evaluation Center
Study Officials
- PRINCIPAL INVESTIGATOR
David Scheifele, MD
University of British Columbia
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
- 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