E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
evaluation of safety of SABIN mOPV2 in healthy IPV-vaccinated children of 1 – 5 years of age (Polio disease) |
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E.1.1.1 | Medical condition in easily understood language |
evaluation of safety of specific oral polio vaccine type 2 in children aged 1 to 5 previously treated with inactivated polio vaccine (Polio disease) |
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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 | 10036016 |
E.1.2 | Term | Poliomyelitis NOS |
E.1.2 | System Organ Class | 100000004862 |
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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 |
The primary objectives of the study are to assess the safety (serious adverse events [SAEs] and severe adverse events [AEs] grade 3 according to CTCAE 4.03) and immunogenicity (seroprotection rate) of one dose of SABIN mOPV2 in healthy IPV-vaccinated children aged 1 to 5 years. |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives are to assess:
- The safety (mild and moderate solicited and unsolicited AEs, Important Medical Events [IMEs], and laboratory assessments) of one or two doses SABIN mOPV2 in healthy IPV-vaccinated children aged 1 to 5 years
- The safety (serious adverse events [SAEs] and severe adverse events [grade 3 AEs according to CTCAE 4.03]) of two doses of SABIN mOPV2 in healthy IPV-vaccinated children aged 1 to 5 years
- The immunogenicity (seroprotection rate) of two doses of SABIN mOPV2 in healthy IPV-vaccinated children aged 1 to 5 years
- The immunogenicity (seroconversion rate, median and geometric mean antibody titers) of one or two doses of SABIN mOPV2 in healthy IPV-vaccinated children aged 1 to 5 years
- The baseline seroprotection rates against all 3 polio types at Day 0 |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. 1 to 5 years of age, previously vaccinated with three or four doses of IPV.
2. Healthy without obvious medical conditions that preclude entry of the subject into the study as established by the medical history and physical examination.
3. Written informed consent obtained from 2 parents or legal guardian(s) as per country regulations
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E.4 | Principal exclusion criteria |
1. Previous vaccination against poliovirus outside the national immunization schedule.
2. Polio vaccines including polio combined vaccines within the 3 months prior to the administration of the study vaccine (number of previous polio vaccine doses to be documented).
3. Any vaccine in the previous 4 weeks.
4. Any confirmed or suspected immunosuppressive or known immunodeficient condition including human immunodeficiency virus (HIV) infection.
5. Family history of congenital or hereditary immunodeficiency.
6. Major congenital defects or serious uncontrolled chronic illness (neurologic, pulmonary, gastrointestinal, hepatic, renal, or endocrine).
7. Known allergy to any component of the study vaccines or to any antibiotics.
8. Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period.
9. Acute severe febrile illness at day of vaccination deemed by the Investigator to be a contraindication for vaccination (the child can be included at a later time if within age window and all in/exclusion criteria are met.).
10. Member of the subject’s household (living in the same house or apartment unit) has received OPV in the last 3 months.
11. Subject who, in the opinion of the Investigator, is unlikely to comply with the protocol or is inappropriate to be included in the study for the safety or the benefit-risk ratio of the subject.
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E.5 End points |
E.5.1 | Primary end point(s) |
The following endpoints will be evaluated by group and overall:
- Safety: incidence of SAEs and severe AEs grade 3 considered consistent with a causal association to study vaccine throughout the study period in both groups.
- Immunogenicity: seroprotection rate of type 2 polio neutralizing antibodies at Day 28 following the first dose of SABIN mOPV2 in both groups.
(Seroprotection is defined as type 2-specific antibody titers ≥1:8 and seroprotection rate as the percentage of seroprotected subjects per group.)
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
- Safety: will be evaluated throughout the study period
- Immunogenicity: will be evaluated at day 28 following the first dose of mOPV2 |
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E.5.2 | Secondary end point(s) |
The following safety and immunogenicity endpoints will be evaluated by group and overall.
Safety:
- Incidence of any SAEs, any AEs grade 3, and any IMEs throughout the study period.
(The following will be considered IMEs: medically significant events that do not meet any of the SAE criteria but may require medical or surgical consultation or intervention to prevent one of the other serious outcomes listed in the SAE definition.)
- Incidence of any mild and moderate solicited AEs for 7 days after the first dose in both groups and for 7 days after the second dose in Group 2;
- Incidence of any mild and moderate unsolicited AEs throughout the study period;
- Incidence and description of deviations from normal of safety chemistry at Day 0 (both groups), 7 and 28 days after the first dose in Groups 1 and 2 and at 7 and 28 days after the second dose in Group 2.
Immunogenicity:
- Seroprotection rate at day 28 after the second dose of SABIN mOPV2 in Group 2.
- The baseline seroprotection rates against all 3 polio types at Day 0
- Median and geometric mean antibody titers of type 2 polio neutralizing antibody titers at day 0, day 28 after dose 1, and day 28 after dose 2 (group 2).
- Seroconversion rate of type 2 polio neutralizing antibodies at 28 days after the first dose in Groups 1 and 2 and at 28 days after the second dose in Group 2.
(Seroconversion is defined as a change from seronegative to seropositive and antibody titers of ≥1:8, and in seropositive subjects, an antibody titer increase of ≥4 fold over baseline titers).
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- Incidence of any SAEs, any AEs grade 3, any IMEs, mild and moderate unsolicited AEs throughout the study period.
- Incidence of any mild and moderate solicited AEs for 7 days after the first dose in both groups and for 7 days after the second dose in Group 2
- deviations from normal of safety chemistry at Day 0 (both groups), 7 and 28 days after the first dose in Groups 1 and 2 and at 7 and 28 days after the second dose in Group 2
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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 |
Immunogenicity (seroprotection rate) |
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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) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
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 | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
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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The study completion date is considered to be the date on which the final serologic analysis is performed to obtain data for the purpose of assessing the primary immunogenicity objective, i.e. the proportions of each group with seroprotective type 2 polio neutralizing antibodies at Day 28 following the first dose of mOPV2. |
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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 | 0 |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | 0 |