E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prophylaxis Neisseria Meningitidis serogroup A, C,W and Y |
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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 |
Primary Immunogenicity objectives :
To assess the immunogenicity of a single injection of MenACWY as measured by the percentage of subjects with hSBA seroresponse, directed against N. meningitidis serogroups A, C, W and Y.
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E.2.2 | Secondary objectives of the trial |
Secondary:
To assess the immunogenicity of MenACWY as measured by hSBA geometric mean titers (GMTs) and by the percentage of subjects with hSBA ≥1:8 directed against N.meningitidis serogroups A, C, W and Y.
Safety objectives:
To assess the safety profile following MenACWY and saline placebo in terms of percentages and numbers of subjects with:
1) Local and systemic reactions reported from day 1 (day of vaccination) through day 7 postvaccination.
2) All other adverse events (AEs) reported from day 1 through day 7 postvaccination.
3) Serious AEs (SAEs) and medically attended AEs from day 1 through day 29. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. who were 11-55 years of age inclusive and who, after the nature of the study had been explained:
a. had given written assent and/or for whom the parent/legal representative had provided written informed consent (11-19 years of age).
b. had provided written informed consent (20-55 years of age).
2. who the investigator believed that they or their parents/legal representatives would comply with the requirements of the protocol (e.g., completion of the Diary Card, return for follow-up visit).
3. who were in good health as determined by
a. medical history
b. physical assessment
c. clinical judgment of the investigator
4. who had negative urine pregnancy test for women of childbearing age. |
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E.4 | Principal exclusion criteria |
1. who were unwilling or unable to give written informed assent or consent to participate in the study.
2. who were perceived to be unreliable or unavailable for the duration of the study period.
3. who were planning to leave the area of the study site before the end of the study period.
4. who had a previous or suspected disease caused by N. meningitidis.
5. who had household contact with and/or intimate exposure to an individual with culture-proven N. meningitidis infection within 60 days prior to enrollment.
6. who had previously been immunized with a meningococcal vaccine.
7. who had received any investigational or non-registered product (drug or vaccine) within 28 days prior to enrollment or who expected to receive an investigational drug or vaccine prior to the completion of the study.
8. who had received any licensed vaccines within 14 days (for inactivated vaccines) or 28 days (for live vaccines) prior to enrollment in this study or who were planning to receive any vaccine within 30 days from the study vaccines. (Exception: Influenza vaccine was administered up to 15 days prior to study vaccination and at least 15 days after study vaccination)
9. who had experienced within the 7 days prior to enrollment significant acute or chronic infection (for example requiring systemic antibiotic treatment or antiviral therapy) or had experienced fever (defined as body temperature >=38°C) within 3 days prior to enrollment.
10. who had any serious acute, chronic or progressive disease (e.g., any history of neoplasm, cancer, diabetes, cardiac disease, autoimmune disease, HIV infection or AIDS, or blood dyscrasias, with signs of cardiac or renal failure or severe malnutrition).
11. who had epilepsy or any progressive neurological disease.
12. who had a history of any anaphylaxis, serious vaccine reactions, or allergy to any vaccine components, including latex allergies.
13. who had a known or suspected impairment/alteration of immune function, either congenital or acquired or resulting from (for example):
a. received immunosuppressive therapy within 28 days prior to enrollment (any systemic corticosteroid administered for more than 5 days, or in a daily dose > 1 mg/kg/day prednisone or equivalent during any of 28 days prior to enrollment, or cancer chemotherapy)
b. received immunostimulants
c. received parenteral immunoglobulin preparation, blood products, and/or
plasma derivatives within 90 days prior to enrollment and for the full length of the study
14. who were known to have a bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
15. who had any condition that, in the opinion of the investigator, might interfere with the evaluation of the study objectives. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary:
- Percentage of subjects with hSBA seroresponse
Seroresponse is defined as:
▫ for subjects with a pre-vaccination hSBA titer < 1:4, a postvaccination hSBA titer ≥ 1:8
▫ for subjects with a pre-vaccination hSBA titer ≥ 1:4, an increase in hSBA titer of atleast four times the pre-vaccination titer
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Primary Immunogenicity endpoints :
all at day 29 postvaccination
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E.5.2 | Secondary end point(s) |
Secondary:
- hSBA GMTs
- Percentage of subjects with hSBA ≥ 1:8.
Safety Endpoints
Numbers and percentages of subjects with reported local and systemic reactions and other AEs. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
all at day 29 postvaccination.
Safety endpoints:
1) day 1 (day of vaccination) through day 7 postvaccination.
2) day 1 through day 7 postvaccination.
3) day 1 through day 29. |
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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 | 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 | 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 | Yes |
E.8.2.3 | Other | No |
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 |
Korea, Democratic People's Republic of |
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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 | 0 |
E.8.9.2 | In all countries concerned by the trial months | 4 |