E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Meningococcal disease causes high rates of morbidity and mortality even among patients who receive early antibiotic treatment. |
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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 |
To assess the immunogenicity 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 (US subjects).
To compare the immunogenicity of the fourth dose of MenACWY given at 12 months of age in subjects who previously received three doses of MenACWY given at 2, 4 and 6 months of age to the immunogenicity of a single dose of MenACWY given to naïve subjects at 12 months of age, as measured by the ratio of GMTs, directed against N. meningitidis serogroups A, C, W, and Y (USsubjects) |
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E.2.2 | Secondary objectives of the trial |
To assess immunogenicity of 3 doses of MenACWY at 2, 4, 6 months of age
To compare immunogenicity of MenACWY given at 2, 6 months of age to MenACWY given at 2, 4, 6 months of age
To demonstrate that immunogenicity of routine vaccines, when given concomitantly with MenACWY at 2, 6 or 2, 4, 6 months of age, is noninferior to that of routine vaccines given alone
To assess antibody persistence at 12 or 16 months of age in subjects who previously received 2 or 3 doses of MenACWY
To assess immunogenicity of dose 3 or 4 of MenACWY given at 12 or 16 months of age in subjects who previously received 2 or 3 doses of MenACWY
To demonstrate that immunogenicity of routine vaccines, when given concomitantly with MenACWY in the 2nd year of life to subjects who previously received 2 or 3 doses of MenACWY, is noninferior to that of routine vaccines given alone
To assess immunogenicity of 1 or 2 doses of MenACWY given at 12 months or 12 and 15 months of age
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Individuals eligible to be enrolled in the study were those:
1. who were healthy 2-month-old male or female infants (55 – 89 days, inclusive), who were born after full term pregnancy with an estimated gestational age ≥ 37 weeks and a birth weight ≥ 2.5 kg;
2. for whom a parent/legal representative had given written informed consent after the nature of the study had been explained;
3. who were available for all the visits scheduled in the study;
4. who were in good health as determined by:
a. medical history
b. physical assessment
c. clinical judgment of the investigator
Informed consent was obtained for all the subjects before enrollment into the study. |
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E.4 | Principal exclusion criteria |
Individuals not eligible to be enrolled were those:
1. whose parent/legal representative was unwilling or unable to give written informed consent to participate in the study;
2. who had previously received any meningococcal vaccine;
3. who had received prior vaccination with D, T, P (acellular or whole cell), IPV or OPV, H. influenzae type b (Hib) or Pneumococcus (a single prior dose of BCG or HBV was not a reason for exclusion);
4. 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 longer than or equal to 2 weeks associated with apnea or whooping);
5. who had household contact with and/or intimate exposure to an individual with laboratory confirmed N. meningitidis (serogroups A, C, W135, or Y), B. pertussis, Hib, C. diphtheriae, Polio, or pneumococcal infection at any time since birth;
6. who had a history of anaphylactic shock, asthma, urticaria or other allergic reaction after previous vaccinations or known hypersensitivity to any vaccine component;
7. who had experienced significant acute or chronic infection within the previous 7 days or have experienced fever (rectal temperature ≥ 38.0°C [100.4°F]) within the previous 3 days;
8. who had any present or suspected serious acute (e.g. leukemia, lymphomas), or chronic disease (e.g., with signs of cardiac disease, renal failure, severe malnutrition, or insulin dependent diabetes), or progressive neurological disease, or a genetic anomaly/known cytogenetic disorders (e.g., Down’s syndrome);
9. 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 immunostimulants at any time since birth
c. receipt of any systemic corticosteroid since birth;
10. who had a suspected or known HIV infection or HIV related disease;
11. who had ever received blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation;
12. who had a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time;
13. who had any history of seizure (one febrile seizure is not a reason for exclusion);
14. who had received oral or parenteral antibiotic treatment in the 7 days prior to the scheduled blood draw;
15. who with their parents/legal representatives were planning to leave the area of the study site before the end of the study period;
16. with any condition which, in the opinion of the investigator, might have interfered with the evaluation of the study objectives;
17. who had taken any antipyretic medication in the previous 6 hours.
18. who had 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. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Immunogenicity as measured by percentage of subjects with hSBA titer >=1:8 directed against N. meningitidis serogroups A, C, W and Y; after four doses of MenACWY-CRM at 2, 4, and 6 and 12 months of age
To compare the immunogenicity of the fourth dose of MenACWY given at 12 months of age in subjects who previously received three doses of MenACWY given at 2, 4 and 6 months of age to the immunogenicity of a single dose of MenACWY given to naïve subjects at 12 months of age, as measured by the ratio of GMTs, directed against N. meningitidis serogroups A, C, W, and Y (US subjects). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
13 months of age (one month post-toddler vaccination) |
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E.5.2 | Secondary end point(s) |
1.Solicited local and systemic reactions were collected day 1 to day 7 after each vaccination
2.Geometric Mean hSBA Titers directed against N. meningitidis serogroups A, C, W and Y
3.Immunogenicity as measured by percentage of subjects with hSBA titer >=1:16, hSBA titer >=1:8, hSBA titer >=1:4 directed against N. meningitidis serogroups A, C, W and Y.
4.Immunogenicity as measured by antibody GMCs / GMTs directed against DTaP, HBV, Hib, pneumococcal and polio antigens in US and LA subjects
5.Immunogenicity as measured by percentage of subjects with predefined seroprotective antibody titers against DTaP, HBV, Hib, pneumococcal and polio antigens and 4 fold increase in GMC. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
safety endpoints: day 1 to day 7 after each vaccination
hsba>= threshold, and GMTs: 7 months of age, 1 month before toddler dose (12 or 16 months of age), 1 month after toddler dose (13 or 17 months of age)
routine vaccines: 7 months of age, 1 month after toddler dose (13 or 17 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 | No |
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 | Yes |
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 |
Argentina |
Colombia |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
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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Corresponds to the 6-month follow-up phone call to take place 6 months after the subject’s last study vaccination. |
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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 | 2 |
E.8.9.2 | In all countries concerned by the trial months | 7 |
E.8.9.2 | In all countries concerned by the trial days | 14 |