Poliomyelitis
Conditions
Brief summary
This is a phase III assessing the safety and immunogenicity of adjuvanted the reduced dose inactivated polio vaccine, IPV-Al SSI given as a booster vaccination to infants who were previously immunised with primary vaccination of IPV-Al SSI or IPV SSI in the VIPV-07 trial at age 2, 4, and 6 months. The IPV-Al SSI vaccine will be given at the age of 15-18 months.
Detailed description
At Visit 1 (screening, blood sample, and vaccination), the subject's eligibility is assessed according to the pre-specified in-/exclusion criteria. Information on medical history, and concomitant medication are collected and a physical examination is performed and vital signs are measured (demographics data is captured from the VIPV-07 database). The health assessment of the subject will include measurement of height, weight, temperature, heart rate, respiratory rate (breathing) and a general physical examination (which can include skin, head, eyes, ears, nose, throat, heart, lungs, lymph nodes, abdomen, and the musculoskeletal system). A pre-vaccination blood sample is taken for polio antibody determinations. The subject is vaccinated with IPV-Al (and concomitant vaccine(s) according to national guidelines, if relevant) and subsequently observed for immediate adverse events 30 minutes after the vaccination. An eDiary, a thermometer and a ruler are handed out to the parent(s)/guardian(s) for measurements and recording of temperature, injection site reactions and solicited systemic adverse events (AEs). These activities are performed daily, starting on the day of the vaccination and the following 2 days and until resolved. Any other AEs are recorded in the eDiary as instructed by the trial staff. A contact to the parent(s)/guardian(s) via telephone will be made after the vaccination visit to remind and check if the parent(s)/guardian(s) have any questions regarding how to fill in the eDiary. At Visit 2 (blood sample and trial completion), 1 month after Visit 1, the eDiary is collected, adverse events and concomitant medications are recorded, a blood sample for poliovirus antibody determination is taken and the end of the trial page is completed. In addition to the trial vaccine, the trial subjects will receive concomitant routine childhood vaccinations. The trial vaccine is administered in the anterolateral aspect of the right thigh, whereas the other injectable childhood vaccines are administered in the left thigh.
Interventions
BIOLOGICALIPV-Al SSI
IPV-Al contains the reduced dose of IPV to be administered intramuscularly to the anterolateral of the right thigh. A single dose of the IPV-Al SSI will be given to infants age 15-18 months.
Sponsors
Bill and Melinda Gates Foundation
Larix A/S
Vaxtrials S.A.
AJ Vaccines A/S
Statens Serum Institut
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
15 Months to 18 Months
Healthy volunteers
Yes
Inclusion criteria
1. Infants having completed the VIPV-07 trial 2. Healthy assessed from medical history and physical examination 3. Parent(s)/guardian(s), according to the local legal requirements, have been properly informed about the trial and have signed the informed consent form 4. Parent(s)/guardian(s), according to the local legal requirements, have granted access to the infant's trial related medical records 5. Parent(s)/guardian(s), according to the local legal requirements, are likely to comply with trial procedures
Exclusion criteria
1. Previously vaccinated with OPV 2. Previously vaccinated with IPV outside the VIPV-07 trial 3. Known or suspected immunodeficiency (e.g. leukaemia or lymphoma) or family history of congenital or hereditary immunodeficiency. HIV infection is not an exclusion criterion 4. Severe uncontrolled chronic disease (e.g. neurologic, pulmonary, gastrointestinal, hepatic, renal or endocrine) 5. Known or suspected allergy to vaccine constituents (e.g. hypersensitivity to formaldehyde, aluminium or 2-phenoxyethanol) 6. Previous Yellow Fever vaccination 7. Uncontrolled coagulopathy or blood disorder contraindicating intramuscular injections or blood sampling 8. In treatment with systemic corticosteroids given p.o., i.v., i.m. ≤ 1 month prior to inclusion or during the trial. Subjects administered corticosteroid topically or by asthma inhalators are eligible for inclusion 9. Treatment with a product, which is likely to modify the immune response (e.g blood products and immunoglobulins) ≤ 3 months prior to inclusion or planned during the trial period 10. Participating in another interventional clinical trial 11. Not suitable for inclusion in the opinion of the investigator
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Booster effect ratiors of GMT | Change from Visit 1 (6-9 months post-3rd vaccination) to one month after booster vaccination (Visit 2) | Booster effect (day 28 / day 0 titres), from individual serum titre values for antibodies against poliovirus types 1, 2 and 3 measured before and one month after the booster vaccination |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Seroprotection rates after booster vaccination | one month after booster vaccination | Subjects with seroprotection (titre ≥ 8) against poliovirus types 1, 2 and 3 one month after the booster vaccination. |
| GMT value before booster vaccination | 6-9 months post-3rd vaccination | Geometric mean antibody titres (GMTs) against poliovirus types 1, 2 and 3 before the booster vaccination. |
| Seroprotection rates before booster vaccination | 6-9 months post-3rd vaccination | Subjects with seroprotection (titre ≥ 8) against poliovirus types 1, 2 and 3 before the booster vaccination. |
| Number of adverse events | 6-9 months post-3rd vaccination and one month after booster vaccination | All adverse event |
| Persistence (tite rates) of antibodies | 6-9 months post-3rd vaccination and one month after booster vaccination | Persistence of antibodies against poliovirus types 1, 2 and 3 in subjects previously im-munised with IPV-Al SSI or IPV SSI |
| GMT value after booster vaccination | one month after booster vaccination | GMTs against poliovirus types 1, 2 and 3 one month after the booster vaccination. |
Countries
Panama
Outcome results
None listed