Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel

Objectives: Trivalent inactivated influenza vaccine effectiveness was low in a prospective cohort of healthcare personnel (HCP) in Israel from 2016 to 2019. We conducted a randomised immunogenicity trial of quadrivalent recombinant influenza vaccine (RIV4) and standard-dose inactivated influenza vac...

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Main Authors: Ashley L. Fowlkes, Alon Peretz, David Greenberg, Avital Hirsch, Emily T. Martin, Min Z. Levine, Laura Edwards, Sarah Radke, Adam S. Lauring, Jill M. Ferdinands, Chao Zhang, Young M. Yoo, Jacob Dreiher, Gabriella Newes-Adeyi, Eduardo Azziz-Baumgartner, Alicia M. Fry, Arnold S. Monto, Ran Balicer, Mark G. Thompson, Mark A. Katz
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:International Journal of Infectious Diseases
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Online Access:http://www.sciencedirect.com/science/article/pii/S120197122400331X
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author Ashley L. Fowlkes
Alon Peretz
David Greenberg
Avital Hirsch
Emily T. Martin
Min Z. Levine
Laura Edwards
Sarah Radke
Adam S. Lauring
Jill M. Ferdinands
Chao Zhang
Young M. Yoo
Jacob Dreiher
Gabriella Newes-Adeyi
Eduardo Azziz-Baumgartner
Alicia M. Fry
Arnold S. Monto
Ran Balicer
Mark G. Thompson
Mark A. Katz
author_facet Ashley L. Fowlkes
Alon Peretz
David Greenberg
Avital Hirsch
Emily T. Martin
Min Z. Levine
Laura Edwards
Sarah Radke
Adam S. Lauring
Jill M. Ferdinands
Chao Zhang
Young M. Yoo
Jacob Dreiher
Gabriella Newes-Adeyi
Eduardo Azziz-Baumgartner
Alicia M. Fry
Arnold S. Monto
Ran Balicer
Mark G. Thompson
Mark A. Katz
author_sort Ashley L. Fowlkes
collection DOAJ
description Objectives: Trivalent inactivated influenza vaccine effectiveness was low in a prospective cohort of healthcare personnel (HCP) in Israel from 2016 to 2019. We conducted a randomised immunogenicity trial of quadrivalent recombinant influenza vaccine (RIV4) and standard-dose inactivated influenza vaccine (IIV4) among frequently and infrequently vaccinated previous cohort participants. Methods: From October 2019 to January 2020, we enrolled and randomly allocated HCP from two Israeli hospitals to receive IIV4 or RIV4. Hemagglutination inhibition (HAI) antibody titres against 2019-2020 vaccine reference influenza viruses were compared between vaccine groups using geometric mean titre (GMT) ratios from sera collected one-month post-vaccination and by frequency of vaccination in the past 5 years (>2 vs ≤2). Results: Among 415 HCP, the GMT ratio comparing RIV4 to IIV4 was 2.0 (95% confidence interval [CI] 1.7-2.7) for A(H1N1)pdm09, 1.6 (95% CI: 1.3-1.9) for A(H3N2), 1.8 (95% CI: 1.4-2.2) for B(Yamagata), and 1.1 (95% CI: 0.9-1.4) for B(Victoria). Similarly, RIV4 elicited higher HAI titres than IIV4 against all 2019-2020 vaccine reference viruses except B(Victoria) among infrequently and frequently vaccinated HCP (lower bound of GMT ratio 95% CIs ≥1.0). Conclusion: RIV4 had improved immunogenicity for influenza vaccine strains among both infrequent and frequent vaccinees compared to standard-dose IIV4. Clinical trials registration: NCT04523324
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spelling doaj-art-654557b4d71e4ee180f0f06513d0f9792024-11-29T06:23:09ZengElsevierInternational Journal of Infectious Diseases1201-97122024-12-01149107260Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in IsraelAshley L. Fowlkes0Alon Peretz1David Greenberg2Avital Hirsch3Emily T. Martin4Min Z. Levine5Laura Edwards6Sarah Radke7Adam S. Lauring8Jill M. Ferdinands9Chao Zhang10Young M. Yoo11Jacob Dreiher12Gabriella Newes-Adeyi13Eduardo Azziz-Baumgartner14Alicia M. Fry15Arnold S. Monto16Ran Balicer17Mark G. Thompson18Mark A. Katz19Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA; Corresponding author: Ashley Fowlkes, Influenza Division, Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Mailstop A34, Atlanta, GA 30329, USA.Rabin Medical Center, Clalit Health Services, Beilinson Campus, Petah Tikva, IsraelSoroka University Medical Center, Clalit Health Services, Be'er Sheva, IsraelClalit Research Institute, Innovation Division, Clalit Health Services, Tel Aviv, IsraelSchool of Public Health, University of Michigan, Ann Arbor, Michigan, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USAAbt Associates, Inc., Atlanta, Georgia, USANational Institute of Health Innovation, University of Auckland, Auckland, New ZealandSchool of Public Health, University of Michigan, Ann Arbor, Michigan, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USASoroka University Medical Center, Clalit Health Services, Be'er Sheva, IsraelAbt Associates, Inc., Atlanta, Georgia, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USAInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USASchool of Public Health, University of Michigan, Ann Arbor, Michigan, USAClalit Research Institute, Innovation Division, Clalit Health Services, Tel Aviv, IsraelInfluenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USAClalit Research Institute, Innovation Division, Clalit Health Services, Tel Aviv, IsraelObjectives: Trivalent inactivated influenza vaccine effectiveness was low in a prospective cohort of healthcare personnel (HCP) in Israel from 2016 to 2019. We conducted a randomised immunogenicity trial of quadrivalent recombinant influenza vaccine (RIV4) and standard-dose inactivated influenza vaccine (IIV4) among frequently and infrequently vaccinated previous cohort participants. Methods: From October 2019 to January 2020, we enrolled and randomly allocated HCP from two Israeli hospitals to receive IIV4 or RIV4. Hemagglutination inhibition (HAI) antibody titres against 2019-2020 vaccine reference influenza viruses were compared between vaccine groups using geometric mean titre (GMT) ratios from sera collected one-month post-vaccination and by frequency of vaccination in the past 5 years (>2 vs ≤2). Results: Among 415 HCP, the GMT ratio comparing RIV4 to IIV4 was 2.0 (95% confidence interval [CI] 1.7-2.7) for A(H1N1)pdm09, 1.6 (95% CI: 1.3-1.9) for A(H3N2), 1.8 (95% CI: 1.4-2.2) for B(Yamagata), and 1.1 (95% CI: 0.9-1.4) for B(Victoria). Similarly, RIV4 elicited higher HAI titres than IIV4 against all 2019-2020 vaccine reference viruses except B(Victoria) among infrequently and frequently vaccinated HCP (lower bound of GMT ratio 95% CIs ≥1.0). Conclusion: RIV4 had improved immunogenicity for influenza vaccine strains among both infrequent and frequent vaccinees compared to standard-dose IIV4. Clinical trials registration: NCT04523324http://www.sciencedirect.com/science/article/pii/S120197122400331XInfluenza vaccineRecombinantImmunogenicityHealthcare personnelFlublok
spellingShingle Ashley L. Fowlkes
Alon Peretz
David Greenberg
Avital Hirsch
Emily T. Martin
Min Z. Levine
Laura Edwards
Sarah Radke
Adam S. Lauring
Jill M. Ferdinands
Chao Zhang
Young M. Yoo
Jacob Dreiher
Gabriella Newes-Adeyi
Eduardo Azziz-Baumgartner
Alicia M. Fry
Arnold S. Monto
Ran Balicer
Mark G. Thompson
Mark A. Katz
Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
International Journal of Infectious Diseases
Influenza vaccine
Recombinant
Immunogenicity
Healthcare personnel
Flublok
title Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
title_full Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
title_fullStr Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
title_full_unstemmed Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
title_short Randomised immunogenicity trial comparing 2019-2020 recombinant and egg-based influenza vaccines among frequently vaccinated healthcare personnel in Israel
title_sort randomised immunogenicity trial comparing 2019 2020 recombinant and egg based influenza vaccines among frequently vaccinated healthcare personnel in israel
topic Influenza vaccine
Recombinant
Immunogenicity
Healthcare personnel
Flublok
url http://www.sciencedirect.com/science/article/pii/S120197122400331X
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