E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prevention of smallpox infection in children |
Pocken |
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E.1.1.1 | Medical condition in easily understood language |
Smallpox infection |
Pocken |
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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 | 14.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10041197 |
E.1.2 | Term | Smallpox |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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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 the immunogenicity after two doses of MVA-BN® smallpox vaccine in children/infants and toddlers. |
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E.2.2 | Secondary objectives of the trial |
To assess the safety and reactogenicity of MVA-BN® smallpox vaccine in children/infants and toddlers.
To assess the immunogenicity in infants/children and toddlers after one compared to two doses of MVA-BN® smallpox vaccine
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Children from birth to < 12 years of age (depending on group allocation) in good health as determined by medical history, physical examination and clinical judgment.
2. No prior smallpox or Modified Vaccinia Ankara (MVA) based vaccination or known exposure to smallpox prior to trial entry.
3. The subject’s parents/guardian have read, signed and dated the informed consent form, having been advised of the risks and benefits of the trial in a language understood by the subject's parents and prior to performance of any trial specific procedures
4. No history of chronic or known neurological disease or deficient development history.
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E.4 | Principal exclusion criteria |
1. Any clinically significant condition which in the opinion of the investigator would compromise the safety of the subject, i.e. the risk would outweigh the benefit of receiving the vaccine (i.e. any uncontrolled serious infection, i.e. not responding to antimicrobial therapy; known or suspected impairment of immunologic function; acute disease with or without pyrexia; temperature more than or equal to 38.0°C [more than or equal to100.4°F]; post organ transplant subjects whether or not receiving chronic immunosuppressive therapy; any other history or clinical manifestation of clinically significant haematological, pulmonary, central nervous, cardiovascular or gastrointestinal disorders).
2. Administration or planned administration of immunoglobulins and/or any blood products during a period starting from 3 months prior to administration of the vaccine and ending at trial conclusion.
3. History of or currently active autoimmune disease. Children with vitiligo or thyroid disease on thyroid replacement therapy are not excluded.
4. History of malignancy, especially leukaemia or lymphoma.
5. History of allergic disease or hypersensitivity likely to be exacerbated by any component of the vaccine.
6. History of anaphylaxis or severe allergic reaction.
7. Chronic administration (defined as more than 14 days) of systemic high dose immune-suppressant drugs during a period starting from six months prior to administration of vaccine and ending at trial conclusion. High dose is defined as 2 mg/kg/day or more of prednisolone or its equivalent, or 20 mg/day or more for children who weigh more than 10 kg.
8. Use of any investigational or non-registered drug or vaccine other than the trial vaccine within 30 days preceding the first dose of the study vaccine, or planned administration of such a drug during the trial period.
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E.5 End points |
E.5.1 | Primary end point(s) |
Geometric Mean Titer (GMT) measured by vaccinia-specific Enzyme-linked Immunosorbent Assay (ELISA) and Plaque Reduction Neutralization Test (PRNT) at Visit 5 i.e. 4 weeks after the second vaccination |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
4 weeks after the second vaccination |
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E.5.2 | Secondary end point(s) |
Safety
• Occurrence, relationship and intensity of any serious adverse events up to Day 56.Occurrence of any Grade 3 adverse events related to the trial vaccine within 28 days after any vaccination.
• Occurrence, relationship to the trial vaccine and intensity of unsolicited non-serious Adverse Events (AEs) within 28 days after each vaccination.
• Occurrence, intensity and duration of solicited local AEs (redness, swelling, induration, pruritus and pain) during the 8-day period (day of vaccination and the following 7 days) after each vaccination.
• Occurrence, relationship to the trial vaccine, intensity and duration of solicited general AEs (pyrexia, headache, myalgia, nausea, fatigue and chills) during the 8-day period (day of vaccination and the following 7 days) after each vaccination.
• Occurrence of smallpox disease in subjects.
Immunogenicity
• Seroconversion rates as determined by vaccinia-specific ELISA at Visit 3 and Visit 5, i.e. four weeks after the first and second vaccination respectively.
• Seroconversion rates as determined by vaccinia-specific PRNT at Visit 3 and Visit 5, i.e. four weeks after the first and second vaccination respectively.
• GMT calculated from individual vaccinia-specific ELISA titers at Baseline (Visit 1) and Visit 3 (four weeks after the first vaccination).
• GMT calculated from individual vaccinia-specific PRNT titers at Baseline (Visit 1) and Visit 3 (four weeks after the first vaccination).
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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 | 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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
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 | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |