The purpose of the study is to evaluate the immunogenicity and safety of Kinrix when co-administered with varicella (Varivax® \[varicella virus vaccine live\], Merck and Company) and (measles mumps rubella) MMR vaccines, compared to Kinrix co-administered with MMR vaccine alone. Both Kinrix and the second dose of Varivax are indicated in children 4-6 years of age, and there is great potential for the vaccines to be given concurrently. The aim of this trial is to demonstrate that co-administered Varivax does not negatively affect the immunogenicity or reactogenicity of Kinrix.
Age range
4 Years – 6 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Number of Subjects With Booster Responses to Diphteria and Tetanus
Timeframe: One month after Kinrix vaccination (Month 1), prior to Varivax vaccination for Kinrix + M-M-R II -> Varivax Group.
Number of Subjects With Anti-pertussis Toxoid (Anti-PT), Anti-filamentous Hemagglutinin (FHA) and Anti-pertactin (Anti-PRN) Booster Responses, Measured in Enzyme-Linked Immunosorbent Assay Units Per Milliliter (EL.U/mL)
Timeframe: One month after Kinrix vaccination (Month 1), prior to Varivax vaccination for Kinrix + M-M-R II -> Varivax Group.
Geometric Mean Titers (GMTs) for Antibodies to Poliovirus Types 1, 2 and 3
Timeframe: One month after Kinrix vaccination (Month 1), prior to Varivax vaccination for Kinrix + M-M-R II -> Varivax Group.