E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prophylaxis against Neisseria meningitidis serogroup A, C, W and Y diseases. |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Bacterial Infections and Mycoses [C01] |
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 |
1. To demonstrate a sufficient immune response of four doses of MenACWY given to infants at 2, 4, 6 and 12 months of age as measured by the percentage of subjects with serum bactericidal activity using human complement (hSBA) ≥ 1:8, directed against N. meningitidis serogroups A, C, W and Y.
2. To demonstrate immunological non-inferiority of two MenACWY infant doses and a toddler dose (doses at 2, 4 and 12 months of age) to three infant doses and a toddler dose (doses at 2, 4, 6 and 12 months of age) as measured by percentage of subjects with hSBA ≥ 1:8 against N. meningitidis serogroups C, W and Y at 13 months of age. |
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E.2.2 | Secondary objectives of the trial |
- Immune response against A,C,W and Y serogroup polysaccharides among subjects 2 (baseline), 3 (single dose at 2 months), 4 (single dose at 2 months), 5 (doses at 2, 4 months) and 7 (doses at 2, 4 and 6 months) months old.
- Immune response at 7 months of age (2 doses at 2 and 4 months of age)
- Persistence of the bactericidal activity of 2 MenACWY infant doses and 3 infant doses as measured by percentage of subjects with hSBA ≥ 1:8 at 12 months of age
- Immune responses at 1 month after a toddler dose of MenACWY at 12 months of age following a 2 vs. a 3 infant dose schedule as measured by GMTs and 4-fold rise in hSBA.
- Effect of concomitant administration of MenACWY on immune responses to PCV-13 antigens when measured at 7 months of age and 13 months of age.
- Percentage of subjects with at least one severe systemic reaction during days 1-7 after any vaccination
- Safety and tolerability of MenACWY when given concomitantly with
routine infant vaccines. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Infants of both genders in good general health were eligible for this
study. The parents/legal representatives had to provide written informed consent and be available for all study visits. |
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E.4 | Principal exclusion criteria |
1. Any individual who previously received any meningococcal vaccine or any vaccine against D, T, P, inactivated poliovirus vaccine (IPV) or oral polio vaccine (OPV), Hinfluenzae type b (Hib) or pneumococcus. Prior doses of BCG vaccine (1 dose) and/or HBV (up to 2) were permitted.
2. Any individual who had a previous confirmed or suspected disease caused by N meningitidis, C diphtheriae, C tetani, Poliovirus, Hepatitis B, Hib, Pneumococcus or B pertussis (history of laboratory confirmed, or clinical condition of paroxysmal cough for a period of longer than or equal to 2 weeks associated with apnea or whooping).
3. Any individual who had household contact with and/or intimate exposure to an individual with laboratory confirmed N meningitidis (serogroups A, C, W, or Y), B pertussis, Hib, C diphtheriae, polio, or pneumococcal infection at any time since birth.
4. Any individual with a history of anaphylactic shock, asthma, urticaria or other allergic reaction after previous vaccinations or known hypersensitivity to any vaccine component.
5. Any individual who had any present or suspected serious acute (eg, leukemia, lymphomas), or chronic disease (eg, with signs of cardiac disease, renal failure, severe malnutrition, or insulin dependent diabetes), or progressive neurological disease, or a genetic anomaly/known cytogenic disorders (eg, Down’s syndrome).
6. Any individual who had a known or suspected autoimmune disease or persistent impairment/alteration of immune function resulting from (for example):
a. receipt of any immunosuppressive therapy at any time since birth,
b. receipt of any immunostimulants at any time since birth,
c. receipt of any systemic corticosteroids since birth.
7. Any individual who had suspected or known HIV infection or HIV related disease.
8. Any individual who had received blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation (including Hepatitis B immune globulin).
9. Any individual who had a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
10. Any individual who had any history of seizure.
11. Any individual who with their parents/legal representatives were planning to leave the area of the study site before the end of the study period.
12. Any individual who had any condition which, in the opinion of the investigator, might have interfered with the evaluation of the study objectives.
13. Any individual who had received any investigational agents since birth or who expected to receive an investigational agent prior to the completion of the study (this includes all experimental preparations, including, for example, experimental feeding formulas).
14. Other vaccinations were not to be administered 28 days prior to visit 1 (age 2 months) through study termination except for vaccines that were specified in the study protocol. Influenza vaccines could be administered up to 15 days prior to study vaccines being administered and at least 15 days after study vaccinations had been administered.
15. Any individuals who were relatives of the research staff. |
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E.5 End points |
E.5.1 | Primary end point(s) |
- Percentage of subjects with hSBA ≥1:8 for meningococcal serogroups A, C, W and Y at one month after the 12-month MenACWY vaccination.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
- Percentage of subjects with hSBA ≥1:8 for meningococcal serogroups A,C W and Y;
- Four-fold rise in hSBA from pre- to post-toddler dose for each MenACWY
serogroup;
- Geometric mean titers (GMT) for each MenACWY serogroup;
- Percentage of subjects with IgG antibody concentration ≥0.35 μg/mL and ≥1.0 μg/mL against pneumococcal capsular polysaccharides for each PCV-13 serotype;
- Geometric mean concentrations (GMC) of antibodies against each PCV-13 serotype
- Percentage of subjects with postvaccination reactions (including percentage of subjects reporting at least 1 severe solicited systemic AE after any study vaccination), reported SAEs and medically attended
AEs. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- 13 months of age
- Baseline (2 months of age), 3 months, 4 months , 5 months and 7 months of age
- 12 months of age
- Day 1 to 7 for reactogenicity
- Throughout the study for SAEs/medically attended AEs |
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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 |
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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) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
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E.8.2.4 | Number of treatment arms in the trial | 3 |
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 |
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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 | 1 |
E.8.9.2 | In all countries concerned by the trial months | 7 |