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About
The purpose of this study is to select the optimal antigen dosage of the three Sabin poliovirus strains (types 1, 2, and 3) entering the composition of the stand-alone trivalent Sabin-based inactivated poliomyelitis vaccine (sIPV) to take forward into advanced stage studies. The selection will be carried out comparing the three sIPV study arms based on the safety and tolerability profile after each dose of primary immunization and the immune response to poliovirus types 1, 2, and 3 for both Sabin and Salk strains, after the final dose of a three dose primary immunization series (Day 85).
Full description
The vaccine being tested in this study is called sIPV. sIPV is used to prevent poliomyelitis. This study will look at the safety, tolerability of sIPV in healthy adults, toddlers and infants as well as safety and immunogenicity in toddlers and infants. .
The study will enroll approximately 340 participants including 40 adults, 60 toddlers and 240 infants. Adult participants will be randomly assigned to one of the two treatment groups-which will remain undisclosed to study doctor and participants during the study (unless there is an urgent medical need):
Toddler participants will be randomly assigned to one of the following treatment groups:
Infant participants will be randomly assigned to one of following treatment groups:
This is a multicentre trial. The overall time to participate in this study for adult is 8 days, for toddlers is 183 days and infants is 547 days.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Adult Lead-in Cohort
Toddler Lead-in Cohort
Infant Dose Ranging Cohort 1. Infants are in good health at the time of entry into the trial as determined by medical history, physical examination (including vital signs) and clinical judgment of the investigator.
Exclusion criteria
Adult Lead-in Cohort
Toddler Lead-in Cohort
Infant Dose Ranging Cohort
All Cohorts
Any significant chronic infection.
Any clinically significant active infection (as assessed by the investigator) or temperature ≥38.0°C (>100.4°F), within 3 days of intended trial vaccination.
Known or suspected impairment/alteration of immune function, including:
Has a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
Primary purpose
Allocation
Interventional model
Masking
340 participants in 8 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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