PMID- 32284272 OWN - NLM STAT- MEDLINE DCOM- 20210413 LR - 20210413 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 38 IP - 22 DP - 2020 May 8 TI - Immunogenicity and safety of a quadrivalent inactivated influenza vaccine in healthy subjects aged 3 to 17 years old: A phase III, open label, single-arm study. PG - 3839-3846 LID - S0264-410X(20)30437-0 [pii] LID - 10.1016/j.vaccine.2020.03.048 [doi] AB - BACKGROUND: Quadrivalent influenza vaccines are particularly valuable during seasons in which a mismatch occurs between the predicted influenza B lineage for the trivalent influenza vaccine and the circulating strain. This study evaluated the immunogenicity and safety of a quadrivalent inactivated influenza vaccine AdimFlu-S manufactured in Taiwan for the 2016-2017 influenza season in healthy children. METHODS: A total of 174 healthy children aged 3 to 17 years old were separated into 3 groups (Group A: 3-8 years old, vaccine naive; Group B: 3-8 years old, vaccine non-naive; Group C: 9-17 years old, any vaccine status). Sera was collected pre and post vaccination for each participant. A hemagglutination inhibition (HAI) assay was utilized to calculate geometric mean titer (GMT), seroprotection rate, and seroconversion rate. RESULTS: All enrolled participants completed the study. For the four vaccine strains four weeks after the last vaccination, geometric mean titer ratios (GMTRs) were between 2.9 and 20.9, seroconversion rates were between 42.9% and 90.9%, and seroprotection rates were all above 96.4%. This achieved all immunogenicity endpoints and fulfilled the criteria of the European Medical Agency's Committee for Medicinal Products for Human Use (CHMP). No serious adverse events (AEs) were reported during the follow-up period of 6 months. CONCLUSION: This quadrivalent influenza vaccine is demonstrated to be well tolerated and displays robust immunogenicity for each influenza strain. This could potentially improve protection against the antigenically distinct B/Yamagata and B/Victoria lineages. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Chang, Chia-Yuan AU - Chang CY AD - Division of Infectious Diseases, Department of Pediatrics, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. FAU - Cho, Ching-Yi AU - Cho CY AD - Division of Infectious Diseases, Department of Pediatrics, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. FAU - Lai, Chou-Cheng AU - Lai CC AD - Division of Infectious Diseases, Department of Pediatrics, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. FAU - Lu, Chun-Yi AU - Lu CY AD - Departments of Pediatrics, National Taiwan University Children's Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. FAU - Chang, Luan-Yin AU - Chang LY AD - Departments of Pediatrics, National Taiwan University Children's Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. FAU - Hung, Miao-Chiu AU - Hung MC AD - Division of Infectious Diseases, Department of Pediatrics, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. FAU - Huang, Li-Min AU - Huang LM AD - Departments of Pediatrics, National Taiwan University Children's Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. Electronic address: lmhuang@ntu.edu.tw. FAU - Wu, Keh-Gong AU - Wu KG AD - Division of Infectious Diseases, Department of Pediatrics, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. Electronic address: kgwu@vghtpe.gov.tw. LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200410 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Antibodies, Viral) RN - 0 (Influenza Vaccines) RN - 0 (Vaccines, Inactivated) SB - IM MH - Adolescent MH - Antibodies, Viral/*blood MH - Child MH - Child, Preschool MH - Healthy Volunteers MH - Hemagglutination Inhibition Tests MH - Humans MH - *Immunogenicity, Vaccine MH - Influenza B virus/immunology MH - Influenza Vaccines/adverse effects/*immunology MH - *Influenza, Human/prevention & control MH - Taiwan MH - Vaccines, Inactivated/adverse effects/immunology OTO - NOTNLM OT - Children OT - Immunogenicity OT - Influenza OT - Quadrivalent OT - Safety OT - Split viron vaccine COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/04/15 06:00 MHDA- 2021/04/14 06:00 CRDT- 2020/04/15 06:00 PHST- 2019/12/13 00:00 [received] PHST- 2020/03/20 00:00 [revised] PHST- 2020/03/27 00:00 [accepted] PHST- 2020/04/15 06:00 [pubmed] PHST- 2021/04/14 06:00 [medline] PHST- 2020/04/15 06:00 [entrez] AID - S0264-410X(20)30437-0 [pii] AID - 10.1016/j.vaccine.2020.03.048 [doi] PST - ppublish SO - Vaccine. 2020 May 8;38(22):3839-3846. doi: 10.1016/j.vaccine.2020.03.048. Epub 2020 Apr 10.