E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prophylaxis against Neisseria meningitidis serogroups A, C, W, and Y |
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E.1.1.1 | Medical condition in easily understood language |
Prophylaxis against Neisseria meningitidis serogroups A, C, W, and Y |
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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 |
To assess the sufficiency of the immune response following 4 doses of MenACWY vaccine given at 2, 4, 6 and 12 months in healthy infants in terms of the proportion of subjects with an hSBA titer ≥ 1:8 at 1 month post vaccination, for each of the four meningococcal vaccine serogroups |
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E.2.2 | Secondary objectives of the trial |
-To evaluate the proportion of subjects with post vaccination hSBA GMTs after 4 doses of MenACWY at 2, 4, 6 and 12 months against each of the four MenACWY serogroups
-To evaluate the proportion of subjects with post vaccination hSBA titers ≥1:8, and hSBA GMTs after 3 doses of MenACWY at 2, 4, and 6 months against each of the four MenACWY serogroups
-To demonstrate that the immune responses to routine concomitant vaccinations (pneumococcal, IPV, HBV, Hib, DTaP) are non-inferior when given with MenACWY compared with when given without MenACWY.
-To assess the persistence of MenACWY immune responses at 12 months of age prior to the fourth dose.
-To evaluate the proportion of subjects with four-fold rise in hSBA at 1 month post 4th dose as compared to the pre-4th dose titer against each of the four MenACWY serogroups. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1) Two month-old infants (aged 55 – 89 days). Babies must have been born after a full-term pregnancy with an estimated gestational age ≥ 37 weeks and a birth weight ≥ 2.5 kg.
2) Documented written informed consent has been provided by the parent/legal representative after the nature of the study has been explained.
3) Parent/legal representative are available for all visits scheduled in the study.
4) Subjects are in good health as determined by :
a) medical history
b) physical assessment
c) clinical judgment of the investigator |
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E.4 | Principal exclusion criteria |
1) Subjects who previously received any meningococcal vaccines or vaccines against diphtheria, tetanus, pertussis, polio (IPV or OPV), H. influenzae type b (Hib) or pneumococcus. Exceptions: prior doses HBV vaccination (one or two doses) are permitted.
2) Subjects who have 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) Subjects who have had household contact with and/or intimate exposure to an individual with laboratory confirmed N. meningitidis, B. pertussis, Hib, C. diphtheriae, polio, or pneumococcal infection at any time since birth.
4) Subjects who have a history of anaphylactic shock, asthma, urticaria or other allergic reaction after previous vaccinations or known hypersensitivity to any vaccine component.
5) Subjects who have any serious acute or chronic disease, neurological disease including seizures, congenital defects, or cytogenic disorders (e.g., Down syndrome).
6) Subjects who have a known or suspected autoimmune disease or persistent impairment/alteration of immune function.
7) Subjects who have a suspected or known HIV infection or were born to a mother known to be HIV positive.
8) Subjects who have ever received blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation (including Hepatitis B immune globulin).
9) Subjects who have a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
10) Subjects who with their parents/legal representatives are planning to leave the area of the study site before the end of the study period.
11) Subjects who have any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives.
12) Subjects who have received any investigational agents or vaccines since birth or who expect to receive an investigational agent or vaccine prior to the completion of the study.
13) Subjects who are relatives of site research staff working on this study. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Percentage of subjects with an (human serum bactericidal assay) hSBA ≥1:8 against each of the four meningococcal vaccine serogroups.
Success criteria:
The lower limit of the two-sided 95% CI for the percentage of subjects with hSBA ≥1:8, at 1 month after the fourth dose, to be greater than 85% for serogroups C, W, or Y and greater than 80% for serogroup A. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1 month after fourth dose, 13 months of age. |
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E.5.2 | Secondary end point(s) |
MenACWY
hSBA GMT,
Percentage of subjects with at least four-fold rise in hSBA.
Routine vaccines
Pentacel (Post 6 month dose)
-ELISA, Diphtheria antigen, % Subjects ≥0.1 IU/mL, GMC
-ELISA, Tetanus antigen, % Subjects ≥0.1 IU/mL, GMC
-ELISA, PT, FHA, Pertactin and FIM antigens, GMC, Seroresponse: In initially seronegative infants, ≥4 times LLQ; in initially
seropositive infants, at least 4 times prevaccination concentration
-ELISA, PRP-T Hib antigen, % Subjects ≥0.15 μg/mL, GMC, % Subjects ≥1.0 μg/mL
Prevnar® (Post 6 and 12 month dose)
ELISA, PnC 4, PnC 6B, PnC 9V, PnC 14, PnC 18C, PnC 19F and PnC 23F antigens, GMC and % Subjects ≥0.35 g /mL.
HBV (post 6 month dose)
-ELISA, HBsAg antigen, % Subjects ≥10 mIU/mL, GMC |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
MenACWY, 1 month after 3rd and 4th dose (4fold rise); 1 month after each dose (hSBA GMT),
Pentacel, 1 month after 3rd dose, ie, at 7 months of age,
Prevnar®, 1 months after 3rd and 4th doses, ie, 7 and 13 months of age,
HBV, 1 month after 3rd dose, ie, at 7 months of age. |
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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 | 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 | 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 | 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 |
Australia |
Canada |
United States |
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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 | 5 |
E.8.9.2 | In all countries concerned by the trial days | 0 |