At a glance
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Evaluation of the Effects of Age, Prior Exposure, and Previous Vaccination on the B Cell Response to Inactivated Influenza Vaccine in Healthy Adults and Children
In Brief
A Phase 4 clinical trial evaluating Influenza Virus Quadrivalent Inactivated Vaccine for Influenza and Influenza Immunisation. Completed, enrolled 152 participants across 2 sites.
Detailed Summary
The study will be designed as a prospective surveillance of the immune response to seasonal influenza vaccination in 240 healthy children and adults ages 9 and over. Study duration will be 5 years, with a participant duration of 6 months. Subjects will receive a quadrivalent inactivated influenza vaccine, at a dose of not less than 15 ug of hemagglutinin (HA), by intramuscular injection in open label fashion on day 0. Blood draws will occur at baseline, day 7, 28 and 90. The primary objective of this study is to evaluate the relationship between first influenza A virus exposure (inferred by age), vaccine history, and baseline serum antibody response to seasonal influenza vaccine in healthy adults and children.
Study Details
Timeline
Interventions
A seasonal quadrivalent inactivated influenza vaccine (IIV4), prepared from influenza viruses propagated in embryonated chicken eggs, protecting against 2 influenza A subtypes and 2 influenza B subtypes: A/Singapore/GP1908/2015 (H1N1) IVR-180 (an A/Michigan/45/2015 \[H1N1\] pdm09-like virus), A/Singapore/INFIMH-16-0019/2016 (H3N2) IVR-186, B/Maryland/15/2016 NYMC BX-69A, (a B/Colorado/06/2017-like virus), and B/Phuket/3073/2013.
A seasonal quadrivalent inactivated influenza vaccine (IIV4), prepared from influenza viruses propagated in embryonated chicken eggs, protecting against 2 influenza A subtypes and 2 influenza B subtypes: A/Singapore/GP1908/2015 (H1N1) IVR-180 (an A/Michigan/45/2015 \[H1N1\] pdm09-like virus), A/Singapore/INFIMH-16-0019/2016 (H3N2) NIB-104, B/Maryland/15/2016 NYMC BX-69A (a B/Colorado/06/2017-like virus), and B/Phuket/3073/2013.