PMID- 19673652 OWN - NLM STAT- MEDLINE DCOM- 20091006 LR - 20090818 IS - 0022-1899 (Print) IS - 0022-1899 (Linking) VI - 200 IP - 6 DP - 2009 Sep 15 TI - Subunit influenza vaccines produced from cell culture or in embryonated chicken eggs: comparison of safety, reactogenicity, and immunogenicity. PG - 849-57 LID - 10.1086/605506 [doi] AB - BACKGROUND: This study assessed the safety, reactogenicity, and immunogenicity of an injectable cell culture-derived influenza vaccine (CCIV), compared with those of an injectable egg-based trivalent inactivated influenza vaccine (TIV). METHODS: Adult subjects (n = 613; 18 to <50 years of age) were randomized (1:1) to receive either CCIV or TIV. The safety and reactogenicity of the 2 vaccines were assessed on the basis of solicited indicators and other adverse events (AEs) within 7 days of vaccination. All serious AEs and those AEs resulting in withdrawal were recorded throughout the study. Antibody titers were determined by the hemagglutination inhibition assay, using egg- and cell-derived antigens. Immunogenicity was assessed on the basis of the ratio of postvaccination (day 22) geometric mean titers (GMTs) between the 2 vaccines, seroprotection rates, and seroconversion rates. RESULTS: There was no clinically relevant difference between the safety and reactogenicity profiles of the 2 vaccines. The immunogenicity of CCIV was demonstrated to be noninferior to that of TIV on the basis of the ratio of postvaccination GMTs between the 2 vaccines. GMTs, seroprotection rates, and seroconversion rates were comparable between the 2 vaccines. CONCLUSIONS: The safety, reactogenicity, and immunogenicity of the CCIV and the egg-based TIV are comparable. FAU - Reisinger, Keith S AU - Reisinger KS AD - Primary Physician's Research, Pittsburgh, PA, USA. FAU - Block, Stanley L AU - Block SL FAU - Izu, Allen AU - Izu A FAU - Groth, Nicola AU - Groth N FAU - Holmes, Sandra J AU - Holmes SJ LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Infect Dis JT - The Journal of infectious diseases JID - 0413675 RN - 0 (Antibodies, Viral) RN - 0 (Influenza Vaccines) RN - 0 (Vaccines, Subunit) SB - IM CIN - J Infect Dis. 2009 Sep 15;200(6):835-7. PMID: 19673653 MH - Adolescent MH - Adult MH - Animals MH - Antibodies, Viral/biosynthesis/blood MH - Chick Embryo MH - Dogs MH - Female MH - Humans MH - Influenza A Virus, H1N1 Subtype/*immunology MH - Influenza A Virus, H3N2 Subtype/*immunology MH - Influenza B virus/*immunology MH - Influenza Vaccines/*adverse effects/*immunology MH - Influenza, Human/*prevention & control MH - Male MH - Middle Aged MH - Vaccines, Subunit/adverse effects/immunology MH - Young Adult EDAT- 2009/08/14 09:00 MHDA- 2009/10/07 06:00 CRDT- 2009/08/14 09:00 PHST- 2009/08/14 09:00 [entrez] PHST- 2009/08/14 09:00 [pubmed] PHST- 2009/10/07 06:00 [medline] AID - 10.1086/605506 [doi] PST - ppublish SO - J Infect Dis. 2009 Sep 15;200(6):849-57. doi: 10.1086/605506.