Long-Term Immune Persistence of GlaxoSmithKline Biologicals' Inactivated Hepatitis A Vaccine, Injected According to 0, 6-month Schedule

May 25, 2018 updated by: GlaxoSmithKline

Double-blind, Randomized Study to Evaluate the Immunogenicity and Reactogenicity of Three Different Lots of GlaxoSmithKline Biologicals' Inactivated Hepatitis A Vaccine Containing 1440 EL.U of Antigen Per mL and Injected According to a 0, 6 Month Schedule in Healthy Adult Subjects

The aim of this study is to evaluate the long-term persistence of hepatitis A antibodies at 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 years after subjects received their first dose of a 2 dose vaccination schedule of hepatitis A vaccine.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a long-term follow-up study at Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 after primary vaccination with GSK Biologicals' hepatitis A vaccine (two-dose schedule). To evaluate the long-term antibody persistence, volunteers will donate a blood sample at Years 11, 12, 13, 14,15, 16, 17, 18, 19 and 20 after the first vaccine dose of the primary vaccination course to determine their anti-hepatitis A (anti-HAV) antibody concentrations If a subject has become seronegative for anti-HAV antibodies during any of the long-term blood sampling time point (i.e. Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 years), he/ she will be offered an additional vaccine dose. A blood sample will be taken on the day of the additional vaccination, 14 days and one month after additional vaccination to evaluate the immune response following this vaccination.

The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007 and to include an extended follow up period up to Year 20 after primary vaccination.

The study has 10 phases (100576, 100577, 100578, 100579, 100580, 111028, 111029, 111030, 111031, 111032).

Study Type

Interventional

Enrollment (Actual)

78

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

      • Wilrijk, Belgium, 2610
        • GSK Investigational Site

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

29 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 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.

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Havrix Group

Subjects who received 2 doses of Havrix™ (lot A, B or C) in the primary study.

As lot to lot consistency was assessed during the primary study, the 3 groups (lot A, B or C) were pooled into the Havrix Group for data analyses during the long term follow-up.

2 doses at 6 months interval

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration
Time Frame: At Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 after the first vaccine dose of the 2-dose primary vaccination

Concentrations given as geometric mean concentration (GMC) expressed as milli-international unit per millilitre (mIU/mL).

The laboratory assay was changed at Year 11, thus the blood samples were with both the old and the new assay for the sake of bridging.

At Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 after the first vaccine dose of the 2-dose primary vaccination
Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration
Time Frame: Before the additional dose, 14 days and 30 days after the additional dose
Concentrations given as GMC expressed as mIU/mL.
Before the additional dose, 14 days and 30 days after the additional dose
Number of Seropositive Subjects for Anti-HAV Antibodies.
Time Frame: From Year 11 to Year 20

Seropositivity for anti-HAV antibodies defined as antibody concentrations ≥ 15 mIU/mL for Year 11 to Year 20 time points.

The laboratory assay was changed at Year 11, thus the blood samples were with both the old and the new assay for the sake of bridging.

From Year 11 to Year 20

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Subjects Reporting Serious Adverse Events (SAE) Assessed by the Investigators as Related to Vaccination or to Study Procedures or Lack of Efficacy
Time Frame: Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 after the first vaccine dose of the 2-dose primary vaccination
An SAE is any untoward medical occurrence that: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above
Years 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20 after the first vaccine dose of the 2-dose primary vaccination
Number of Subjects Reporting Any and Grade 3 Solicited Local Symptoms
Time Frame: During the 4-day (Day 0-3) follow-up period after additional vaccination

Solicited local symptoms assessed include pain, redness and swelling. Grade 3 pain = symptom that prevented normal activities. Grade 3 redness and swelling = redness or swelling above 30 mm and persisting more than 24 hours.

Any = incidence of a particular symptom regardless of intensity.

During the 4-day (Day 0-3) follow-up period after additional vaccination
Number of Subjects Reporting Any, Grade 3 and Related Solicited General Symptoms
Time Frame: During the 4-day (Day 0-3) follow-up period after additional vaccination
Solicited general symptoms assessed included fatigue, fever, gastrointestinal symptoms, and headache.
During the 4-day (Day 0-3) follow-up period after additional vaccination
Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Events (AE)
Time Frame: During the 30-day follow-up period after additional vaccination (for subjects who received the additional vaccine dose between Year 11 and 15)

An AE is any untoward medical occurrence in a clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Grade AE = produced significant impairment of functioning or incapacitation and was a definite hazard to the subject's health.

Related AE = assessed by the investigator as related to the study vaccination.

During the 30-day follow-up period after additional vaccination (for subjects who received the additional vaccine dose between Year 11 and 15)
Number of Subjects Reporting Serious Adverse Events (SAE)
Time Frame: During the follow-up period after additional vaccination up to Year 20
An SAE is any untoward medical occurrence that: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above.
During the follow-up period after additional vaccination up to Year 20

Collaborators and Investigators

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

Sponsor

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.

General Publications

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

January 1, 2004

Primary Completion (Actual)

March 1, 2013

Study Completion (Actual)

March 1, 2013

Study Registration Dates

First Submitted

February 9, 2006

First Submitted That Met QC Criteria

February 9, 2006

First Posted (Estimate)

February 10, 2006

Study Record Updates

Last Update Posted (Actual)

July 23, 2018

Last Update Submitted That Met QC Criteria

May 25, 2018

Last Verified

September 1, 2016

More Information

Terms related to this study

Other Study ID Numbers

  • 100576 (Y11)
  • 100577 (Y12) (Other Identifier: GSK)
  • 100578 (Y13) (Other Identifier: GSK)
  • 100579 (Y14) (Other Identifier: GSK)
  • 100580 (Y15) (Other Identifier: GSK)
  • 111028 (Y16) (Other Identifier: GSK)
  • 111029 (Y17) (Other Identifier: GSK)
  • 111030 (Y18) (Other Identifier: GSK)
  • 111031 (Y19) (Other Identifier: GSK)
  • 111032 (Y20) (Other Identifier: GSK)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

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

Study Data/Documents

  1. Statistical Analysis Plan
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  2. Study Protocol
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  3. Informed Consent Form
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  4. Individual Participant Data Set
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register. The results of this study 100576 are summarised with studies 100577, 100578, 100579, 100580, 111028, 111029, 111030, 111031, and 111032 on the GSK Clinical Study
  5. Dataset Specification
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  6. Clinical Study Report
    Information identifier: 100576 (Y11)
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register

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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