NCT00291876

Brief Summary

The aim of this study is to evaluate the persistence of hepatitis A antibodies at 138, 150, 162, 174,186, 198, 210, 222, 234 and 246 months after subjects received their first dose of a 2 dose vaccination schedule of hepatitis A vaccine. This protocol posting deals with objectives \& outcome measures of the extension phase at year 11 to 20. No additional subjects will be recruited during this long-term follow-up.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
135

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Jan 2004

Longer than P75 for phase_4

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

Study Start

First participant enrolled

January 1, 2004

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

February 14, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 15, 2006

Completed
4.1 years until next milestone

Results Posted

Study results publicly available

March 8, 2010

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2013

Completed
Last Updated

November 29, 2017

Status Verified

January 1, 2017

Enrollment Period

9.2 years

First QC Date

February 14, 2006

Results QC Date

December 10, 2009

Last Update Submit

October 23, 2017

Conditions

Keywords

HAVRIX™Hepatitis A

Outcome Measures

Primary Outcomes (2)

  • Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration

    Concentrations given as geometric mean concentration (GMC) expressed as milli-international unit per millilitre (mIU/mL). \*\* = Regarding Month 234 data, please note that there were 5 subjects for whom serum sample tube was broken and thus due to risk of contamination the test were not performed. Hence these subjects were not included in the LT-ATP cohort for immunogenicity analysis at Month 234. $ = Regarding Month 246 data, please note there was 1 subject for whom serum sample tube was broken and hence scrapped by laboratory. Hence this subject was not included in the LT-ATP cohort for immunogenicity analysis at Month 246.

    At Months 138, 150, 162, 174, 186, 198, 210, 222, 234 and 246

  • Number of Seropositive Subjects Against Hepatitis A Virus

    A seropositive subject was a vaccinated subject whose concentrations for antibodies against hepatitis A virus (anti-HAV) were equal or above (\>=) the assay cut-off for seropositivity of 15 milli-international units per milliliter (mIU/mL). \*\* = Regarding Month 234 data, please note that there were 5 subjects for whom serum sample tube was broken and thus due to risk of contamination the test were not performed. Hence these subjects were not included in the LT-ATP cohort for immunogenicity analysis at Month 234. $ = Regarding Month 246 data, please note there was 1 subject for whom serum sample tube was broken and hence scrapped by laboratory. Hence this subject was not included in the LT-ATP cohort for immunogenicity analysis at Month 246.

    At Months 138, 150, 162, 174, 186, 198, 210, 222, 234 and 246

Secondary Outcomes (7)

  • Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration

    Before additional vaccination, 14 days after additional vaccination and 30 days after additional vaccination

  • Number of Subjects Reporting Solicited Local Symptoms

    During the 4-day (Days 0-3) follow-up period after additional vaccination

  • Number of Subjects Reporting Solicited General Symptoms

    During the 4-day (Days 0-3) follow-up period after additional vaccination

  • Number of Subjects Reporting Unsolicited Adverse Events (AE)

    During the 30-day follow-up period after additional vaccination

  • Number of Subjects Reporting Serious Adverse Events (SAE) Assessed by the Investigator as Related to Primary Study Vaccination, Procedures or Lack of Vaccine Efficacy

    At Months 138, 150, 162, 174, 186, 198, 210, 222, 234 and 246

  • +2 more secondary outcomes

Study Arms (1)

Havrix Group

EXPERIMENTAL

Subjects who received during the primary study 2 doses of Havrix™ at Day 0 and at Month 12.

Biological: Havrix™

Interventions

Havrix™BIOLOGICAL

2 doses at 12 months interval

Havrix Group

Eligibility Criteria

Age29 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Subjects who had received at least one dose of the study vaccine in the primary study
  • Written informed consent will have been obtained from the subjects before the blood sampling visit of each year.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

GSK Investigational Site

Wilrijk, 2610, Belgium

Location

Related Publications (5)

  • Van Herck K, Jacquet JM, Van Damme P. Antibody persistence and immune memory in healthy adults following vaccination with a two-dose inactivated hepatitis A vaccine: long-term follow-up at 15 years. J Med Virol. 2011 Nov;83(11):1885-91. doi: 10.1002/jmv.22200. Epub 2011 Aug 23.

    PMID: 21915861BACKGROUND
  • Van Herck K, Crasta PD, Messier M, Hardt K, Van Damme P. Seventeen-year antibody persistence in adults primed with two doses of an inactivated hepatitis A vaccine. Hum Vaccin Immunother. 2012 Mar;8(3):323-7. doi: 10.4161/hv.18617. Epub 2012 Feb 13.

    PMID: 22327499BACKGROUND
  • Agrawal A, Kolhapure S, Andani A, Ota MOC, Badur S, Karkada N, Mitra M. Long-Term Persistence of Antibody Response with Two Doses of Inactivated Hepatitis A Vaccine in Children. Infect Dis Ther. 2020 Dec;9(4):785-796. doi: 10.1007/s40121-020-00311-8. Epub 2020 Jul 24.

  • Theeten H, Van Herck K, Van Der Meeren O, Crasta P, Van Damme P, Hens N. Long-term antibody persistence after vaccination with a 2-dose Havrix (inactivated hepatitis A vaccine): 20 years of observed data, and long-term model-based predictions. Vaccine. 2015 Oct 13;33(42):5723-5727. doi: 10.1016/j.vaccine.2015.07.008. Epub 2015 Jul 16.

  • Hens N, Habteab Ghebretinsae A, Hardt K, Van Damme P, Van Herck K. Model based estimates of long-term persistence of inactivated hepatitis A vaccine-induced antibodies in adults. Vaccine. 2014 Mar 14;32(13):1507-13. doi: 10.1016/j.vaccine.2013.10.088. Epub 2014 Feb 7.

Related Links

MeSH Terms

Conditions

Hepatitis A

Interventions

Hepatitis A Vaccines

Condition Hierarchy (Ancestors)

Hepatitis, Viral, HumanVirus DiseasesInfectionsEnterovirus InfectionsPicornaviridae InfectionsRNA Virus InfectionsHepatitisLiver DiseasesDigestive System Diseases

Intervention Hierarchy (Ancestors)

Viral Hepatitis VaccinesViral VaccinesVaccinesBiological ProductsComplex Mixtures

Limitations and Caveats

For 5 subjects at Month 234, serum sample tubes were broken. Due to risk of contamination, anti-HAV concentrations analyses were not performed for these subjects, who were excluded in the LT-ATP cohort for immunogenicity analysis at Month 234.

Results Point of Contact

Title
GSK Response Center
Organization
GlaxoSmithKline

Study Officials

  • GSK Clinical Trials

    GlaxoSmithKline

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 14, 2006

First Posted

February 15, 2006

Study Start

January 1, 2004

Primary Completion

March 1, 2013

Study Completion

March 1, 2013

Last Updated

November 29, 2017

Results First Posted

March 8, 2010

Record last verified: 2017-01

Data Sharing

IPD Sharing
Will share

Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Available IPD Datasets

Individual Participant Data Set (100571 (M138))Access
Informed Consent Form (100571 (M138))Access
Study Protocol (100571 (M138))Access
Dataset Specification (100571 (M138))Access
Clinical Study Report (100571 (M138))Access
Statistical Analysis Plan (100571 (M138))Access

Locations