Study of Seasonal Influenza Vaccine Against H5N1 Avian Influenza Virus

Summary

This will be a randomized, open-label, pilot feasibility study of four 2-dose vaccine regimens in healthy volunteers using two commercially available seasonal influenza vaccines to compare immune responses and in vitro cross-reactivity against H5N1. Vaccine doses will be spaced by approximately 8 weeks to allow for optimal prime boost conditions. Humoral, cellular and secretory immune responses will be measured 2 and 4 weeks after each vaccine dose and compared with baseline values.

Timeline

Start

2009-11

Primary completion

2010-07

Completion

2012-06

Publications

• Results Bethell D, Saunders D, Jongkaewwattana A, Kramyu J, Thitithayanont A, Wiboon-ut S, Yongvanitchit K, Limsalakpetch A, Kum-Arb U, Uthaimongkol N, Garcia JM, Timmermans AE, Peiris M, Thomas S, Engering A, Jarman RG, Mongkolsirichaikul D, Mason C, Khemnu N, Tyner SD, Fukuda MM, Walsh DS, Pichyangkul S. Evaluation of in vitro cross-reactivity to avian H5N1 and pandemic H1N1 2009 influenza following prime boost regimens of seasonal influenza vaccination in healthy human subjects: a randomised trial. PLoS One. 2013;8(3):e59674. doi: 10.1371/journal.pone.0059674. Epub 2013 Mar 26.

Drugs

Indications