E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Vaccination of healthy children from 1 to 11 years old against Hepatitis |
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E.1.1.1 | Medical condition in easily understood language |
Infection of the liver
Persistent Jaundice
Liver failure
Liver cancer
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E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
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 |
For the primary study:
To demonstrate that the combined hepatitis A / hepatitis B (720/20) vaccine is not more reactogenic than Twinrix™ Junior.
For the long term follow up (LTFU):
To evaluate anti-HAV and anti-HBs antibody persistence at Year 2, Year 3, Year 4 and Year 5 after the first vaccine dose of the primary vaccination course (a two-dose schedule of Twinrix Adult 720/20 vaccine or a three-dose schedule of Twinrix Junior 360/10 vaccine).
To evaluate the immune memory in the subjects who became seronegative for anti-HAV antibodies (i.e. anti-HAV antibody concentrations < 15 mIU/ml) or had anti-HBs antibody concentrations < 10 mIU/ml at the long-term blood sampling time-point (i.e. Year 2, 3, 4 or 5) and who received the challenge dose (administered 6 to 12 months after the Year 5 time-point).
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E.2.2 | Secondary objectives of the trial |
To assess the reactogenicity after each vaccine dose.
To assess the safety throughout the study.
To evaluate the immunogenicity elicited by the study vaccines, by measuring the anti-Hepatitis A virus (HAV) and anti-Hepatitis B surface antigen (HBs) antibody levels reached one month following the last vaccine dose (month 7).
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Fro the primary study:
A male or female between, and including, 1 and 11 years of age at the time of the first vaccination.
Written informed consent obtained from the parent or guardian of the subject and/or the subject.
Free of obvious health problems as established by medical history and clinical examination before entering into the study.
Not known to be seropositive for anti-HAV antibodies, HBs antigen, anti-HBc and anti-HBs antibodies.
Although very unlikely in this age group, female partici-pants who may be at risk of becoming pregnant should take precautions to avoid pregnancy.
For the LTFU:
Subjects who had received at least one dose of the study vaccine in the primary study HAB-120.
Written informed consent was obtained from the parents or guardians of the subject before the blood-sampling visit of each follow-up visit.
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E.4 | Principal exclusion criteria |
Use of any investigational or non-registered drug or vac-cine other than the study vaccines within 30 days preced-ing the first dose of study vaccine, or planned use during the study period.
Any chronic drug therapy to be continued during the study period.
Planned administration/ administration of a vaccine not foreseen by the study protocol within 30 days of the first dose of vaccines.
Previous vaccination against hepatitis A or B.
History of hepatitis A or B.
Any confirmed or suspected immunosuppressive or im-munodeficient condition, including human immunodefi-ciency virus infection.
History of allergic disease or reactions likely to be exac-erbated by any component of the vaccine.
History of any neurologic disorders or seizures.
Acute disease at the time of enrolment.
Hepatomegaly, right upper quadrant abdominal pain or tenderness.
Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
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E.5 End points |
E.5.1 | Primary end point(s) |
Overall number of subjects reporting with at least one grade 3 solicited symptom.
For the LTFU:
Anti-HAV seropositivity rates and geometric mean concentrations (GMCs) (calculated on seropositive subjects).
Anti-HBs seropositivity rates, proportion of the subjects with antibody concentrations >=10 mIU/ml and GMCs (calculated on seropositive subjects).
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
For primary study: On the day of vaccination (Day 0) and during the 3 day follow-up period after each vaccine dose (Day 0-3).
For LTFU: At all the LTFU time-points (at Years 2, 3, 4 and 5). |
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E.5.2 | Secondary end point(s) |
Frequency and intensity of local solicited symptoms.
Frequency, intensity and relationship of general solicited symptoms.
Frequency, intensity and relationship of unsolicited symptoms.
Frequency, intensity and relationship of serious adverse events (SAEs).
For LTFU :
Anti-Hepatitis A virus (HAV) and anti-Hepatitis B surface antigen (HBs) antibody titres.
Seroconversion rate (SC) and geometric mean titres (GMTs) for anti-HAV antibodies.
SC rate, seroprotection (SP) and GMTs for anti-HBs antibodies.
SAEs that are determined by the investigator to have a causal relationship to primary vaccination, any event related to a lack of vaccine efficacy (i. e. hepatitis A or hepatitis B infection), SAEs that are related to study participation (blood sampling).
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
For solicited local and general symptoms: On the day of vaccination (Day 0) and during the 3 day follow-up period after each vaccine dose (Day0-3).
For unsolicited symptoms: Within 30 days after each vaccine dose and overall.
For SAEs: During the study up to 30 days after the last vaccination.
For anti-HAV and anti-HBs antibody titres at LTFU time point: At Month 0 and Month 7 for all subjects.
For seroprotection, seroconversion and GMTs at LTFU time point: At Month 7 for all subjects.
For SAEs at LTFU time points : At all the LTFU time-points (at Years 2, 3, 4 and 5). |
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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 |
reactogenicity, immunology |
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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) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
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) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
Australia |
Belgium |
Spain |
Sweden |
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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.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |