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Hepatitis APhase 4NCT00291876

Long-Term Immune Persistence of GlaxoSmithKline Biologicals' Inactivated Hepatitis A Vaccine Injected According to a 0, 12-month Schedule

A Phase 4 study testing Havrix™ in people with Hepatitis A, run by GlaxoSmithKline at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 29 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis A
What is being tested?
Havrix™
Could I receive a placebo?
No, everyone receives an active treatment
How many people
135 participants
Where
1 siteBelgium
Study dates
1 Jan 2004to 1 Mar 2013
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 29 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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.

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • GSK Investigational Site

    Wilrijk, 2610

Other trials in Belgium

About this study

Official title: Double-blind Randomized Study to Evaluate the Immunogenicity and Reactogenicity of Two Different Lots of GlaxoSmithKline Biologicals' Inactivated Hepatitis A Vaccine Containing 1440 EL.U of Antigen Per mL and Injected According to a 0, 12 Month Schedule in Healthy Adult Volunteers

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.

Read the 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. Months 138, 150, 162, 174,186, 198, 210, 222, 234 and 246), 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 extend the follow up until Year 20.

The study has 10 phases: 100571, 100572, 100573, 100574, 100575, 110677, 110678, 110679, 110680, 110681.

Conditions
Hepatitis A
Being tested
Havrix™
Keywords
HAVRIX™, Hepatitis A
Medical subject headings
Hepatitis A

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Havrix™Biological

    2 doses at 12 months interval

Study groups in NCT00291876
Study groupRoleWhat they receive
Havrix GroupExperimentalSubjects who received during the primary study 2 doses of Havrix™ at Day 0 and at Month 12.
Receives: Biological: Havrix™

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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.

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

  2. 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.

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

Secondary outcomes (7)
  1. Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration

    Concentrations given as GMC expressed as mIU/mL. 4 subjects received additional vaccination at Month 186 and 1 subject at Month 198.

    Please note that value 14.9 means <15.

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

  2. Number of Subjects Reporting Solicited Local Symptoms

    Solicited local symptoms assessed include pain, redness and swelling. Additional vaccination was given to 4 subjects at the Month 186 timepoint and to 1 subject at the Month 198 timepoint.

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

  3. Number of Subjects Reporting Solicited General Symptoms

    Solicited general symptoms assessed include fatigue, fever, gastrointestinal symptoms and headache.

    4 subjects received additional vaccination at Month 186 and 1 subject at Month 198.

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

  4. Number of Subjects Reporting Unsolicited Adverse Events (AE)

    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.

    4 subjects received additional vaccination at Month 186 and 1 at Month 198.

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

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

    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

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

  6. Number of Subjects Reporting Serious Adverse Events (SAE) After Additional 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.

    4 subjects received additional vaccination at Month 186 and 1 at Month 198.

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

  7. Number of Subjects Reporting Pregnancies After Additional Vaccination

    The number of subjects with outcome of pregnancies reported among subjects who had received the additional vaccination was tabulated. 4 subjects received additional vaccination at Month 186 and 1 subject at Month 198.

    Measured: At Months 186 and 198

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2006 (estimated)
  2. Study start1 Jan 2004
  3. Primary completion1 Mar 2013
  4. Study completion1 Mar 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
135 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00291876
Sponsor's protocol ID
100571 (M138)
Other IDs
100572 (M150), 100573 (M162), 100574 (M174), 100575 (M186), 110677 (M198), 110678 (M210), 110679, 110680
Status last verified
Jan 2017
First submitted
14 Feb 2006
Last updated
29 Nov 2017
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Publications

  • 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.

    PubMed 21915861
  • 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.

    PubMed 22327499
  • 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.

    PubMed 32710245
  • 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.

    PubMed 26190091
  • 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.

    PubMed 24508042

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Havrix™ in people with Hepatitis A, run by GlaxoSmithKline at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Mar 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Anti-hepatitis A Virus (Anti-HAV) Antibody Concentration (time frame: At Months 138, 150, 162, 174, 186, 198, 210, 222, 234 and 246). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00291876, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Nov 2017.

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