| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| Diphtheria, Tetanus, Whooping Cough, Hepatitis B, Poliomyelitis, Haemophilius Influenzae Type b |
|
| E.1.1.1 | Medical condition in easily understood language |
| Diphtheria, Tetanus, Whooping Cough, Hepatitis B, Polio, Haemophilius Influenzae Type b |
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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 |
To describe the long-term antibody (Ab) persistence at 3.5 and 4.5 years of age following a 3-dose primary series vaccination of either DTaP-IPV-HB-Hib+Prevenar™ (PCV7)+Rotarix™ or Infanrix™ hexa+Prevenar™ (PCV7)+Rotarix™ vaccination at 2, 4, 6 months of age and a booster vaccination of DTaP-IPV-HB-Hib+Prevenar™ (PCV7) or Infanrix™ hexa+Prevenar™ (PCV7) at 12 to 24 months of age. Only 2 doses of Rotarix™ were administered in the primary series at 2 and 4 months of age. |
|
| E.2.2 | Secondary objectives of the trial |
|
| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
A potential subject had to meet all of the following criteria to be considered for trial enrollment: 1) Aged 3 years and a half (42 months ± 60 days) on the day of the first study visit 2) Informed consent form has been signed and dated by the parent(s) or other legally acceptable representative (and by independent witness/es if required by local regulations) 3) Subject and parent/legally acceptable representative are able to attend all scheduled visits and to comply with all trial procedures 4) Receipt of primary vaccination with 3 doses of investigational vaccines during the primary series trial A3L24 (either DTaP-IPV-HB-Hib or Infanrix™ hexa, concomitantly administered with Prevenar™ [PCV7] and Rotarix™) and a booster dose during the trial A3L27 (either DTaP-IPV-HB-Hib |
|
| E.4 | Principal exclusion criteria |
A potential subject meeting any of the following criteria was ineligible for trial enrollment: 1) Participation at the time of study enrollment (or in the 4 weeks preceding the first trial visit) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure 2) Incomplete primary and booster immunization at trial A3L24 and A3L27 3) Receipt of any vaccine in the 4 weeks preceding the first trial visit or planned receipt of any vaccine in the 4 weeks preceding the second trial visit 4) Previous vaccination against diphtheria, tetanus, pertussis, poliomyelitis, hepatitis B, or Haemophilus influenzae type b infections with other vaccine(s) after completion of A3L27 study |
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| E.5 End points |
| E.5.1 | Primary end point(s) |
The following serological endpoints were assessed in children aged 3.5 years (months [M]18 to M30 post-booster dose) and 4.5 years of age (M30 to M42 post-booster dose) according to the groups assigned in A3L27 study: - Ab concentrations/titers for each valence (except PCV7 and Rotarix™ valences) - Ab concentrations/titers above a cut-off: - Anti-D Ab concentrations ≥ 0.01 IU/mL, ≥ 0.1 IU/mL and ≥ 1.0 IU/mL - Anti-T Ab concentrations ≥ 0.01 IU/mL, ≥ 0.1 IU/mL and ≥ 1.0 IU/mL - Anti-Hep B Ab concentrations ≥ 10 mIU/mL and ≥ 100 mIU/mL - Anti-PRP Ab concentrations ≥ 0.15 μg/mL and ≥ 1.0 μg/mL - Anti-pertussis toxin (PT) and anti-filamentous hemagglutinin (FHA) Ab concentrations ≥ LLOQ* (Lower Limit of Quantitation), ≥ 2x LLOQ and ≥ 4x LLOQ - Anti-poliovirus 1, 2, and 3 Ab titers ≥ 8 (1/dil)
(* LLOQ = 2 enzyme-linked immunosorbent assay [ELISA] units [EU]/mL for PT and FHA) |
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| E.5.1.1 | Timepoint(s) of evaluation of this end point |
| 3.5 years (Month 18 to Month 30 post-booster dose) and 4.5 years (Month 30 to Month 42 post-booster dose) |
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| E.5.2 | Secondary end point(s) |
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| E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
| E.6.5 | Efficacy | Yes |
| 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 | No |
| 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 | No |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | Yes |
| 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 | Yes |
| E.8.2.3.1 | Comparator description |
|
| 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 | Yes |
| E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
|
| 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 months | 12 |