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Hepatitis BPhase 4NCT01138098

Evaluation of Antibody Persistence and Immune Memory Against the Hepatitis B Antigen in Previously Vaccinated Children

A Phase 4 study testing Engerix™-B in people with Hepatitis B, run by GlaxoSmithKline at 11 sites in Slovakia.

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

This study will evaluate the persistence of immunity to hepatitis B 10 to 11 years after vaccination with Infanrix hexa™ or Engerix™-B and also the ability to mount an immune response to the challenge dose of Engerix™-B. Read more about this study

Who is it for?
Ages 11 to 12 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis B
What is being tested?
Engerix™-B
Could I receive a placebo?
No, everyone receives an active treatment
How many people
185 participants
Where
11 sitesSlovakia
Study dates
7 Jun 2010to 26 Nov 2010
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 11 to 12 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Subjects who the investigator believes that their parents/Legally acceptable representative) can and will comply with the requirements of the protocol should be enrolled in the study.
  • A male or female aged 11-12 years at the time of study entry (from and including the 11th birthday until and excluding the 13th birthday).
  • Written informed consent obtained from the parent or Legally Acceptable Representative of the subject.
  • Study procedures will be explained to subjects and depending on their understanding, optional informed assent will be sought at the discretion of the investigator.
  • Written informed assent obtained from the subject in addition to the informed consent signed by the parent(s)/ Legally Acceptable Representative (s).
  • Healthy subjects as established by medical history and clinical examination before entering into the study.
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  • Subjects who have received all three doses of Infanrix hexa or Engerix-B in the primary study 217744/031 (NCT01457495).
  • Female subjects of non-childbearing potential may be enrolled in the study.
  • Female subjects of childbearing potential may be enrolled in the study, if the subject:
  • has practiced adequate contraception for 30 days prior to vaccination, and
  • has a negative pregnancy test on the day of vaccination, and
  • has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the vaccination series.

Who cannot join

  • Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.
  • Child in care.
  • Use of any investigational or non-registered product drug or vaccine) other than the study vaccine within 30 days preceding the challenge dose of HBV vaccine, or planned use during the study period.
  • Receipt of hepatitis B (containing) vaccine after vaccination in the primary study 217744/031 (NCT01457495).
  • History of hepatitis B disease.
  • Planned administration/administration of a vaccine not foreseen by the study protocol during the period starting from 30 days before and ending 30 days after the HBV vaccine challenge dose.
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  • Administration of immunoglobulins and/or any blood products within the three months preceding the challenge dose of HBV vaccine or planned administration during the study period.
  • Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the challenge dose of HBV vaccine.
  • Pregnant or lactating female.
  • Female planning to become pregnant or planning to discontinue contraceptive precautions.
  • Known hypersensitivity to any component of the HBV vaccine or evidence of hypersensitivity after previous immunisation with a vaccine containing the hepatitis B component.
  • Acute disease and/or fever at the time of enrolment.
  • Fever is defined as temperature ≥ 37.5°C (99.5°F) on oral, axillary or tympanic setting
  • Subjects with a minor illness without fever may be enrolled at the discretion of the investigator.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

Slovakia11 sites
  • GSK Investigational Site

    Banská Bystrica, 974 01

  • GSK Investigational Site

    Dolný Kubín, 026 01

  • GSK Investigational Site

    Dubnica nad Váhom, 018 41

  • GSK Investigational Site

    Martin, 036 01

  • GSK Investigational Site

    Nitra, 949 01

  • GSK Investigational Site

    Nová Dubnica, 018 51

  • GSK Investigational Site

    Nové Zámky, 940 01

  • GSK Investigational Site

    Púchov, 020 01

  • GSK Investigational Site

    Rožňava, 048 01

  • GSK Investigational Site

    Trebišov, 075 01

  • GSK Investigational Site

    Zlaté Moravce, 953 01

Other trials in Slovakia

About this study

Official title: Antibody Persistence and Immune Memory Against the Hepatitis B Antigen in 11-12 Year Old Children, Previously Vaccinated With DTPa-HBV-IPV/Hib Vaccine in Study 217744/031

This study will evaluate the persistence of immunity to hepatitis B 10 to 11 years after vaccination with Infanrix hexa™ or Engerix™-B and also the ability to mount an immune response to the challenge dose of Engerix™-B.

Read the detailed description

Subjects who participated in the primary study 217744/031 (NCT01457495) will be invited at the age of 11-12 years to participate in this follow-up study.

Conditions
Hepatitis B
Being tested
Engerix™-B
Keywords
Persistence, challenge dose, Engerix-B, immune response
Medical subject headings
Hepatitis B

What participants receive

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

  • Engerix™-BBiological

    Intramuscular, single dose

Study groups in NCT01138098
Study groupRoleWhat they receive
Infanrix-hexa/Engerix-B GroupExperimentalSubjects aged 11-12 year old received 3 doses of Infanrix-hexa vaccine in the primary study (217744/031 (NCT01457495)) and a challenge dose of Engerix-B vaccine in this study. Engerix-B was administered as a single dose intramuscularly into the deltoid region of the non-dominant arm.
Receives: Biological: Engerix™-B
Infanrix-IPV+Hib/Engerix-B GroupActive comparatorSubjects aged 11-12 year old received 3 doses of Infanrix-IPV+Hib and Engerix-B vaccines in the primary study (217744/031 (NCT01457495)) and a challenge dose of Engerix-B vaccine in this study. Engerix-B was administered as a single dose intramuscularly into the deltoid region of the non-dominant arm.
Receives: Biological: Engerix™-B

What is being measured

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

  1. Number of Subjects With Anti-hepatitis B (Anti-HBs) Antibody Concentration Equal to or Above (≥) 100 Milli-International Units Per Milliliter (mIU/mL)

    A decrease in the specificity of the anti-HB enzyme-linked immunosorbent assay (ELISA) had been observed in some studies for low levels of antibody (10-100 mIU/mL). All the available blood samples initially tested with ELISA were re-tested using the Chemi Luminescence Immuno Assay (CLIA) approved by the US Food and Drug Administration (FDA). The table shows updated results following partial or complete retesting/reanalysis.

    Measured: One month after a challenge dose of Engerix-B vaccine

Secondary outcomes (8)
  1. Number of Subjects With an Anamnestic Response to a Challenge Dose

    The anamnestic response was defined as: at least (≥) a 4-fold rise in post-challenge dose anti-HBs antibody concentrations in subjects seropositive at the pre-challenge dose time point. - Post-challenge dose anti-HBs antibody concentrations ≥ 10 mIU/mL in seronegative subjects at the pre-challenge dose time point. A seropositive/seronegative subject is a subject with anti-HBs antibody concentration ≥/lower than (<) 6.2 mIU/mL. A decrease in the specificity of the anti-HB ELISA had been observed in some studies for low levels of antibody (10-100 mIU/mL). All the available blood samples initially tested with ELISA were re-tested using the Chemi Luminescence Immuno Assay (CLIA) approved by the US Food and Drug Administration (FDA). The table shows updated results following partial or complete retesting/reanalysis and the initial 3.3 mIU/mL seropositivity cut-off was revised into the new 6.2 mIU/mL cut-off.

    Measured: Before and one month after a challenge dose of Engerix-B vaccine

  2. Number of Subjects With Anti-HBs Antibody Concentration ≥ 6.2 mIU/mL

    A seropositive subject was defined as a subject with anti-HBs antibody concentration ≥ the 6.2 mIU/mLcut-off. A decrease in the specificity of the anti-HB ELISA had been observed in some studies for low levels of antibody (10-100 mIU/mL). All the available blood samples initially tested with ELISA were re-tested using the Chemi Luminescence Immuno Assay (CLIA) approved by the US Food and Drug Administration (FDA). The table shows updated results following partial or complete retesting/reanalysis and the initial 3.3 mIU/mL seropositivity cut-off was revised into the new 6.2 mIU/mL cut-off.

    Measured: Before and one month after a challenge dose of Engerix-B vaccine

  3. Number of Subjects With Anti-HBs Antibody Concentration ≥ 10 mIU/mL

    A seroprotected subject was defined as a subject with anti-HBs antibody concentration ≥ 10 mIU/mL. A decrease in the specificity of the anti-HB enzyme-linked immunosorbent assay (ELISA) had been observed in some studies for low levels of antibody (10-100 mIU/mL). All the available blood samples initially tested with ELISA were re-tested using the Chemi Luminescence Immuno Assay (CLIA) approved by the US Food and Drug Administration (FDA). The table shows updated results following partial or complete retesting/reanalysis.

    Measured: Before and one month after a challenge dose of Engerix-B vaccine

  4. Number of Subjects With Anti-HBs Antibody Concentration ≥ 100 mIU/mL

    A seroprotected subject was defined as a subject with anti-HBs antibody concentration ≥ 10 mIU/mL. A decrease in the specificity of the anti-HB ELISA had been observed in some studies for low levels of antibody (10-100 mIU/mL). All the available blood samples initially tested with ELISA were re-tested using the Chemi Luminescence Immuno Assay (CLIA) approved by the US Food and Drug Administration (FDA). The table shows updated results following partial or complete retesting/reanalysis.

    Measured: Before the challenge dose of Engerix-B vaccine

  5. Number of Subjects Reporting Solicited Local Symptoms

    Solicited local symptoms assessed were pain, redness and swelling.

    Measured: During the 4-day (Days 0-3) follow-up period after a challenge dose of Engerix-B vaccine

  6. Number of Subjects Reporting Solicited General Symptoms

    Solicited general symptoms assessed were fatigue, gastrointestinal, headache and temperature (Temperature is defined as axillary temparature equal to or above 37.5 degrees Celsius (°C)).

    Measured: During the 4-day (Days 0-3) follow-up period after a challenge dose of Engerix-B vaccine

  7. Number of Subjects Reporting Unsolicited Adverse Events (AEs)

    An unsolicited adverse event is any adverse event (i.e. any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with use of a medicinal product, whether or not considered related to the medicinal product) reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms.

    Measured: During the 31-day (Days 0-30) follow-up period after a challenge dose of Engerix-B vaccine

  8. Number of Subjects Reporting Serious Adverse Events (SAEs)

    SAEs assessed include medical occurrences that results in death, are life threatening, require hospitalization or prolongation of hospitalization, results in disability/incapacity or are a congenital anomaly/birth defect in the offspring of a study subjects.

    Measured: After the challenge dose of Engerix-B vaccine up to the study end

Timeline

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

  1. First posted7 Jun 2010 (estimated)
  2. Study start7 Jun 2010
  3. Primary completion26 Nov 2010
  4. Study completion26 Nov 2010

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
185 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01138098
Sponsor's protocol ID
113954
Status last verified
Sep 2016
First submitted
27 May 2010
Last updated
20 Aug 2018
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

  • Avdicova M, Crasta PD, Hardt K, Kovac M. Lasting immune memory against hepatitis B following challenge 10-11 years after primary vaccination with either three doses of hexavalent DTPa-HBV-IPV/Hib or monovalent hepatitis B vaccine at 3, 5 and 11-12 months of age. Vaccine. 2015 May 28;33(23):2727-33. doi: 10.1016/j.vaccine.2014.06.070. Epub 2014 Jun 22.

    PubMed 24962750

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Engerix™-B in people with Hepatitis B, run by GlaxoSmithKline at 11 sites in Slovakia.

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 12 inclusion and 14 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 20 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in Slovakia. 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 21 Dec 2011). 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?

Number of Subjects With Anti-hepatitis B (Anti-HBs) Antibody Concentration Equal to or Above (≥) 100 Milli-International Units Per Milliliter (mIU/mL) (time frame: One month after a challenge dose of Engerix-B vaccine). 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 NCT01138098, which also lists 1 linked publication.

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 20 Aug 2018.

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