E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Healthy volunteers (immunization against avian influenza virus A (H5N1) infection) |
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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] - Virus Diseases [C02] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10073988 |
E.1.2 | Term | Bird flu |
E.1.2 | System Organ Class | 100000004862 |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 18.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10021433 |
E.1.2 | Term | Immunization |
E.1.2 | System Organ Class | 100000004865 |
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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 whether two doses of H5N1 antigen in association with AS03 adjuvant elicits an immune response, measured by postimmunization vaccine-homologous virus hemagglutination inhibition (HI) titers, that meets or exceeds Center for Biologics Evaluation and Research (CBER)/ Committee for Medicinal Products for Human Use (CHMP) young adult targets for proportion of subjects attaining postimmunization reciprocal HI titres ≥ 40 against A/Indonesia/5/2005
virus (abbreviated seroprotection rate [SPR]. |
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E.2.2 | Secondary objectives of the trial |
- To assess if the SPR (21 days post dose 1) and SCR (21 days post dose 1 & 2) meets or exceeds CBER/CHMP guidance targets in active treatment groups.
- To assess if H5N1 antigen in association with AS03 elicits an immune response, measured by post-immunization vaccine-homologous virus HI titers, that meets or exceeds the CHMP guideline target for GMI in young adults (>2.5) in active treatment groups at Days 21 & 42.
- Immunogenicity of the vaccine in terms of seropositivity rate, GMT, SCR, SPR, & GMI in terms of point estimates & 95% CI, 182 days & 385 days postdose 1 of vaccine.
- Immunogenicity of the vaccine regimen in 3 age strata in terms of MN titres specific for the vaccine-homologous virus & for 1 or more drift-variant viruses.
- Safety of H5N1 vaccine in terms of solicited local & general adverse events (AEs), clinical laboratory abnormalities, unsolicited AEs, MAEs, pIMDs & SAEs compared with placebo in subjects 6 months to <18 years of age. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
•A male or female child >= 6 months and < 18 years of age at the time of first vaccination.
•Written informed consent obtained from the subject’s parent/guardian.
•Documentation of assent for children 9 to < 18 years of age.
•Satisfactory baseline medical assessment by history and physical examination
•Parent/guardian and subject access to a consistent means of telephone contact, land line or mobile, but NOT a pay phone or other multiple-user device.
•Parents/guardians and subjects who the investigator believes understand the requirements of the protocol and can and will comply with them.
•Female subjects of non-childbearing potential may be enrolled in the study.
•Female subjects of childbearing potential must
-have practiced adequate contraception for 30 days prior to vaccination, and
-have a negative pregnancy test on the day of each vaccination, and
-have agreed to continue adequate contraception for 2 months after completion of the vaccination series |
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E.4 | Principal exclusion criteria |
•Medical history of physician-confirmed infection with an H5N1 virus.
•Previous vaccination at any time with an H5N1 vaccine.
•Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine/product, or planned use during the study period.
•Presence of significant acute or chronic, uncontrolled medical or psychiatric illness.
•Presence of neurological or psychiatric diagnoses which, although stable, are deemed by the investigator to render the potential subject or parent/guardian unable/unlikely to provide accurate safety reports.
•Evidence of current subject or parent/guardian substance abuse, including alcohol, by medical history.
•Presence of a temperature ≥ 38.0ºC by any method, or acute symptoms greater than “mild” severity on the scheduled date of first dose.
•Diagnosed with cancer, or treatment for cancer, within 3 years.
•Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
•Receipt of systemic glucocorticoids within 1 month prior to first dose of test article or any other cytotoxic or immunosuppressive drug within 6 months prior to first dose of test article. Receipt of any immunoglobulins and/or any blood products within 3 months of first test article administration or planned administration of any of these products during the study period.
•Any significant disorder of coagulation or treatment with warfarin derivatives or heparin.
•An acute evolving neurological disorder or history of Guillain-Barré syndrome within 6 weeks of receipt of seasonal influenza vaccine.
•Administration of an inactivated seasonal influenza vaccine within 14 days, or of a live, attenuated seasonal influenza vaccine within 30 days before the first test article dose, or of any other vaccine(s) not foreseen by the study protocol within 30 days before the first test article dose.
•Planned administration of any vaccine(s) not foreseen by the study protocol through completion of the Day 42 visit.
•Any known or suspected allergy to any constituent of influenza vaccines or history of severe reaction to any previous influenza vaccination.
•Known pregnancy, or a positive urine pregnancy test result prior to each test article dose.
•Lactating or nursing.
•Child in care. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Immunogenicity with respect to components of the investigational vaccine |
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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) |
- Occurrence of each solicited local symptom
- Occurrence of each solicited general symptom
- Occurrence of unsolicited adverse events (AEs)
- Occurrence of AEs with medically attended visits (MAEs), (potential) immune mediated diseases (pIMDs) and serious adverse events (SAEs) |
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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 | Yes |
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) | Yes |
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 |
Canada |
Thailand |
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 | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |