E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The vaccine administered in this study is used to prevent pertussis caused by the bacterium Bordetella pertussis |
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E.1.1.1 | Medical condition in easily understood language |
The vaccine used to vaccinate the participants in this study is used to prevent pertussis caused by the bacterium Bordetella pertussis |
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E.1.1.2 | Therapeutic area | Health Care [N] - Environment and Public Health [N06] |
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 |
• To assess pertussis specific IgG antibody levels in serum to determine the effects of a second aP booster vaccination and determine whether there is a difference in IgG levels between wP and aP primed children at 8-9 years of age;
• To assess memory B- and T-cell responses against the various B. pertussis proteins and determine whether there is a difference between wP and aP primed children at 9 years of age. |
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E.2.2 | Secondary objectives of the trial |
• To assess pertussis specific IgG-subclasses and -avidity;
• To measure serum specific IgG-antibodies, -subclasses and -avidity and memory B- and T-cell responses against the other vaccine components (Diphtheria, Tetanus, Polio, Mumps, Measles and Rubella);
• To measure serum specific IgG-antibodies, -subclasses and -avidity against other vaccine components from the NIP;
• To measure IgA- and IgE- antibodies in serum against the proteins of B. pertussis and other vaccine components from the NIP. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Good general health;
• 8-9 years of age;
• Vaccinated with Infanrix-IPV + Hib (GSK) at 2, 3, 4, and 11 months of age and with Infanrix-IPV (GSK) at 4 years of age;
• Received all other regular vaccines according to the Dutch NIP;
• Provision of written informed consent by both parents or legal representatives;
• Adherent to protocol and available during the study period |
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E.4 | Principal exclusion criteria |
• Present evidence of serious disease(s) demanding immunosuppressive medical treatment, like corticosteroids, that might interfere with the results of the study within the last 3 months;
• Antibiotic use within 14 days of enrollment;
• Any known primary or secondary immunodeficiency;
• Previous administration of plasma products (including immunoglobulins) within the last 6 months;
• Vaccination with any other pertussis vaccine than those described in the inclusion criteria (i.e. vaccinated with Pediacel or Triaxis (both from Sanofi Pasteur MSD));
• Vaccination other than those used in the NIP within a month before vaccination/ blood sampling;
• Boostrix Polio® must not be given to people with a known hypersensitivity after a previous injection of diphtheria-, tetanus-, pertussis- or poliomyelitis-vaccines or one of the substances of the vaccines;
• Boostrix Polio® is contraindicated to people who suffered from an encephalopathy without a known cause within 7 days after a former pertussis vaccination;
• Boostrix Polio® must not be administered to people who suffered from a temporary trombocytopathia or people who had neurologic complications (convulsions or hypotonehyporesponsive episodes) after a former administration with a diphtheria or tetanus vaccine. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Overview of current pertussis specific IgG -levels and -avidity and numbers of B- and T-cells before and after vaccination to determine vaccine responses |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
After second blood sample and after third and optional fourth blood sample |
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E.5.2 | Secondary end point(s) |
Overview of current IgG -levels and -avidity and numbers of B- and T-cells before and after vaccination to determine vaccine responses of the other vaccine components |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
After second blood sample and after third and optional fourth blood sample |
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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 | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
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 |
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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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
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 | 7 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |