PMID- 19903213 OWN - NLM STAT- MEDLINE DCOM- 20100107 LR - 20211020 IS - 1750-2659 (Electronic) IS - 1750-2640 (Print) IS - 1750-2640 (Linking) VI - 3 IP - 6 DP - 2009 Nov TI - Safety and immunogenicity of an inactivated thimerosal-free influenza vaccine in infants and children. PG - 315-25 LID - 10.1111/j.1750-2659.2009.00108.x [doi] AB - OBJECTIVE: Few prospective studies of inactivated split virion influenza vaccine have been conducted in infants and children. Our objective was to evaluate the safety, reactogenicity and immunogenicity of a thimerosal-free inactivated influenza vaccine (Fluvax; CSL Limited, Parkville, Australia) in children aged 6 months to <9 years. METHODS: A prospective, open-label, phase III clinical trial was conducted in 298 healthy children previously unvaccinated with influenza, commencing in the Southern Hemisphere 2005 autumn. Participants were divided into two groups (Group A: > or =6 months to <3 years; Group B: > or =3 years to <9 years), and received two doses of the 2005 vaccine, and one dose of the 2006 vaccine one year later (Group A: 0.25 ml per dose; Group B: 0.5 ml per dose). Vaccine safety and reactogenicity was evaluated for 30 days after each dose. Immunogenicity was assessed using hemagglutination inhibition and single radial hemolysis assays. RESULTS: There were no withdrawals due to adverse events (AEs). The majority of solicited local and systemic AEs were of mild severity. A maximum intensity of severe was reported for injection site pain and fever by only 3.0% and 3.4% of participants, respectively. The vaccine was immunogenic for all antigens, with > or =95% of both younger and older children achieving seroprotection after dose 2. CONCLUSIONS: This thimerosal-free inactivated influenza vaccine had a favorable safety profile and was immunogenic in children aged > or =6 months and <9 years. Primary and booster vaccination produced consistently immunogenic responses including in children under 3 years of age receiving 0.25 ml doses of vaccine. FAU - Nolan, Terry AU - Nolan T AD - Vaccine and Immunisation Research Group at the Murdoch Children's Research Institute and the Melbourne School of Population Health, University of Melbourne, Victoria 3010, Australia. t.nolan@unimelb.edu.au FAU - Richmond, Peter C AU - Richmond PC FAU - McVernon, Jodie AU - McVernon J FAU - Skeljo, Maryanne V AU - Skeljo MV FAU - Hartel, Gunter F AU - Hartel GF FAU - Bennet, Jillian AU - Bennet J FAU - Basser, Russell L AU - Basser RL LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PL - England TA - Influenza Other Respir Viruses JT - Influenza and other respiratory viruses JID - 101304007 RN - 0 (Antibodies, Viral) RN - 0 (Excipients) RN - 0 (Influenza Vaccines) RN - 0 (Vaccines, Inactivated) RN - 2225PI3MOV (Thimerosal) SB - IM MH - Antibodies, Viral/blood MH - Australia MH - Child MH - Child, Preschool MH - Drug-Related Side Effects and Adverse Reactions MH - Excipients/pharmacology MH - Female MH - Fever/chemically induced MH - Hemagglutination Inhibition Tests MH - Humans MH - Immunization, Secondary MH - Infant MH - Influenza Vaccines/*adverse effects/*immunology MH - Influenza, Human/*prevention & control MH - Male MH - Pain/chemically induced MH - Thimerosal/pharmacology MH - Vaccines, Inactivated/adverse effects/immunology PMC - PMC4941394 EDAT- 2009/11/12 06:00 MHDA- 2010/01/08 06:00 PMCR- 2009/11/01 CRDT- 2009/11/12 06:00 PHST- 2009/11/12 06:00 [entrez] PHST- 2009/11/12 06:00 [pubmed] PHST- 2010/01/08 06:00 [medline] PHST- 2009/11/01 00:00 [pmc-release] AID - IRV108 [pii] AID - 10.1111/j.1750-2659.2009.00108.x [doi] PST - ppublish SO - Influenza Other Respir Viruses. 2009 Nov;3(6):315-25. doi: 10.1111/j.1750-2659.2009.00108.x.