E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Immunisation against infection caused by all known subtypes of hepatitis B virus. |
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E.1.1.1 | Medical condition in easily understood language |
Inflammation of the liver due to viral infection. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10021881 |
E.1.2 | Term | Infections and infestations |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the immunological response to hepatitis B antigen, in terms of antibody concentrations ≥100 mIU/ml, one month after the single challenge dose of the HBV vaccine in subjects 14-15 years of age, previously vaccinated with four doses of Infanrix hexa in the first two years of life. |
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E.2.2 | Secondary objectives of the trial |
To assess the persistence of anti-hepatitis B (Anti-HBs) antibodies, in terms of seroprotection status and antibody concentrations, in subjects 14-15 years of age, previously vaccinated with 4 doses of Infanrix hexa in the 1st two years of life.
To assess the immunological response to hepatitis B antigen, in terms of anamnestic response, one month after the single challenge dose of the HBV vaccine in subjects 14-15 years of age, previously vaccinated with 4 doses of Infanrix hexa in the 1st two years of life.
To assess the immunological response to the hepatitis B antigen, in terms of seroprotection status and antibody concentrations 1 month after the single challenge dose of the HBV vaccine in subjects 14-15 years of age previously vaccinated with 4 doses of Infanrix hexa in the first 2 years of life.
To evaluate the safety and reactogenicity of a single challenge dose of HBV vaccine (Engerix-B Kinder) in terms of solicited (local and general), unsolicited symptoms and SAEs. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
•Subjects’ parent(s)/Legally Acceptable Representative(s) [LAR(s)] who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
•Written informed consent obtained from the parent(s)/LAR(s) of the subject prior to performance of any study specific procedure.
•In addition to the informed consent that will be signed by the parents/LAR(s), written informed assent of the subject will be sought.
•A male or female between the ages of 14 to 15 at the time of vaccination.
•Healthy subjects as established by medical history and clinical examination before entering into the study.
•Subjects with documented evidence of previous vaccination with four consecutive doses of Infanrix hexa as part of routine vaccination in Germany: three doses of primary vaccination received by 9 months of age and one booster dose received between 11 and 18 months of age.
•Female subjects of non-childbearing potential may be enrolled in the study.
-Non-childbearing potential is defined as pre-menarche, current tubal ligation, hysterectomy or ovariectomy.
•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 vacci-nation, and
-has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the vaccination series. |
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E.4 | Principal exclusion criteria |
•Child in care.
•Use of any investigational or non-registered product other than the study vaccine during the period starting 30 days before the dose of study vaccine, or planned use during the study period.
•Any medical condition that in the judgment of the investi-gator would make intramuscular injection unsafe.
•Chronic administration of immunosuppressants or other immune-modifying drugs during the period starting six months prior to the vaccine dose. For corticosteroids, this will mean prednisone ≥ 0.5 mg/kg/day, or equivalent. In-haled and topical steroids are allowed.
•Administration of long-acting immune-modifying drugs at any time during the study period.
•Planned administration/administration of a vaccine not foreseen by the study protocol in the period starting 30 days before the dose and ending 30 days after the dose of HBV vaccine administration with the exception of tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine, which can be given as part of routine vaccination practice. Seasonal or pandemic influenza vaccine can be given at any time during the study, and according to the Summary of Product Characteristics and national recommendations.
•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 vaccine/product (pharmaceutical product or device).
•Evidence of previous hepatitis B booster vaccination since administration of the fourth dose of Infanrix hexa booster in the second year of life.
•History of or intercurrent hepatitis B disease.
•Hepatitis B vaccination at birth.
•Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
•Family history of congenital or hereditary immunodefi-ciency.
•History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine.
•Major congenital defects or serious chronic illness including thrombocytopenia and bleeding disorders.
•History of any neurological disorders or seizures.
•Acute disease and/or fever at the time of enrolment.
-Fever is defined as temperature ≥ 37.5°C for oral, axillary or tympanic route, or 38.0°C for rectal route.
-Subjects with a minor illness without fever may be enrolled at the discretion of the investigator.
•Acute or chronic, clinically significant pulmonary, cardio-vascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
•Administration of immunoglobulins and/or any blood products during the period starting 3 months before the dose of study vaccine or planned administration during the study period.
•Pregnant or lactating female.
•Female planning to become pregnant or planning to discontinue contraceptive precautions. |
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E.5 End points |
E.5.1 | Primary end point(s) |
1) Anti-HBs antibody concentrations
• The Anti-HBs cut-off to be assessed is ≥100 mIU/ml |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1) One month after the single challenge dose of HBV vaccine
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E.5.2 | Secondary end point(s) |
1) Anti-HBs antibody concentrations
• The Anti-HBs cut-offs to be assessed are ≥ 10 mIU/ml, ≥ 100 mIU/ml and anti-HBs antibody geometric mean concentrations (GMCs).
2) Anamnestic response to the single challenge dose of HBV vaccines.
• The Anti-HBs amnestic response cut-off to be assessed is ≥ 10 mIU/ml.
3) Number of subjects with solicited local and general symptoms.
• Occurrence of each solicited local and general symptom
4) Number of subjects with unsolicited adverse events.
• Occurrence of unsolicited AEs after the single challenge dose of HBV vaccine.
5) Number of subjects with serious adverse events.
• Occurrence of serious adverse events after the single challenge dose of HBV vaccine up to study end. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1) Before the challenge dose of HBV vaccine (Day 0)
2) One month after the single challenge dose of Engerix-B Kinder vaccine
3) Within 4 days (Day 0 - Day 3) after the vaccination
4) Within 31 days (Day 0 - Day 30) after the vaccination
5) From Day 0 to Day 31 |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Immunogenicity, persistence |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 12 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 7 |