NCT03694808

Brief Summary

Adjuvanted flu vaccine, Fluad, is not immunologically inferior to HD influenza vaccine in older persons living in long-term care.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
478

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Sep 2018

Longer than P75 for phase_4

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 23, 2018

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

September 26, 2018

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 3, 2018

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2023

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

April 30, 2024

Completed
Last Updated

April 30, 2024

Status Verified

April 1, 2024

Enrollment Period

4.4 years

First QC Date

September 26, 2018

Results QC Date

January 30, 2024

Last Update Submit

April 26, 2024

Conditions

Keywords

FluVaccine

Outcome Measures

Primary Outcomes (6)

  • Overall Hemagglutinin Inhibition (HAI) H1N1 Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

  • Overall Hemagglutinin Inhibition (HAI) H3N2 Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

  • Overall Hemagglutinin Inhibition (HAI) B Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

  • Overall HAI H1N1 Seroconversion Rate Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

  • Overall HAI H3N2 Seroconversion Rate Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

  • Overall HAI B Seroconversion Rate Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    HAI is an in vitro bioassay testing subjects' sera for specific anti-influenza antibodies to each strain in the vaccine. Seroconversion is 4-fold rise in antibody titer. The FDA uses this as the standard immunogenicity assay for licensure. The investigators will follow the guidelines set out in the FDA guidance document on non-inferiority immunogenicity studies for the analysis plan.

    1 month post vaccine administration

Secondary Outcomes (9)

  • Overall Neuraminidase Inhibition (NAI) H1N1 Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    1 month post vaccine administration

  • Overall Neuraminidase Inhibition (NAI) H3N2 Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    1 month post vaccine administration

  • Overall H1N1 NAI Seroconversion Rate Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    1 month post vaccine administration

  • Overall NAI H3N2 Seroconversion Rate Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    1 month post vaccine administration

  • Overall Serum Virus Neutralization (SVN) H1N1 Titer Between FLUAD and FLUZONE HD at 1 Month Post-vaccination.

    1 month post vaccine administration

  • +4 more secondary outcomes

Other Outcomes (1)

  • To Pilot Clinical Objective: Efficacy of FLUAD Will be Compared to FLUZONE HD.

    6-8 months post vaccine administration

Study Arms (2)

Fluad Vaccine

ACTIVE COMPARATOR

A single adjuvanted dose (AD) intramuscular injection

Drug: Fluad Vaccine

Fluzone Vaccine

ACTIVE COMPARATOR

A single high dose (HD) intramuscular injection

Drug: Fluzone HD Vaccine

Interventions

single adjuvanted dose (AD) intramuscular injection

Fluad Vaccine

single high dose (HD) intramuscular injection

Fluzone Vaccine

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • \> 65 years old
  • Able to obtain consent from subject or legally authorized representative (subject to provide assent if cognitively/physically able to do so)
  • Able to participate throughout the study period

You may not qualify if:

  • Recent illness (within 30 days) severe enough to require hospitalization or physician-directed outpatient pharmacotherapy
  • Administration of immunomodulatory agents (e.g. oral corticosteroids except prednisone \< 10 mg daily, cyclosporine, and biologics (DMARDS) for Rheumatologic/Dermatologic conditions) in the last 3 months
  • Cancer requiring treatment in the past three years, except for non- melanoma skin cancers or cancers that have clearly been cured or carry an excellent prognosis including prostate cancer.
  • Myocardial infarction, major heart surgery (i.e. valve replacement or bypass surgery), stroke, deep vein thrombosis or pulmonary embolus in the past 4 months
  • Allergies or history of significant adverse reactions to any component of influenza vaccine including egg protein and latex or after a previous dose of any influenza vaccine.
  • History of Guillian-BarrĂ© Syndrome within 6 weeks of a prior influenza vaccine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Louis Stokes Cleveland VA Medical Center

Cleveland, Ohio, 44106, United States

Location

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

Location

Related Publications (19)

  • Ansaldi F, Bacilieri S, Durando P, Sticchi L, Valle L, Montomoli E, Icardi G, Gasparini R, Crovari P. Cross-protection by MF59-adjuvanted influenza vaccine: neutralizing and haemagglutination-inhibiting antibody activity against A(H3N2) drifted influenza viruses. Vaccine. 2008 Mar 17;26(12):1525-9. doi: 10.1016/j.vaccine.2008.01.019. Epub 2008 Feb 1.

    PMID: 18294741BACKGROUND
  • Centers for Disease Control and Prevention (CDC). Estimates of deaths associated with seasonal influenza --- United States, 1976-2007. MMWR Morb Mortal Wkly Rep. 2010 Aug 27;59(33):1057-62.

    PMID: 20798667BACKGROUND
  • DiazGranados CA, Dunning AJ, Kimmel M, Kirby D, Treanor J, Collins A, Pollak R, Christoff J, Earl J, Landolfi V, Martin E, Gurunathan S, Nathan R, Greenberg DP, Tornieporth NG, Decker MD, Talbot HK. Efficacy of high-dose versus standard-dose influenza vaccine in older adults. N Engl J Med. 2014 Aug 14;371(7):635-45. doi: 10.1056/NEJMoa1315727.

    PMID: 25119609BACKGROUND
  • Dunning AJ, DiazGranados CA, Voloshen T, Hu B, Landolfi VA, Talbot HK. Correlates of Protection against Influenza in the Elderly: Results from an Influenza Vaccine Efficacy Trial. Clin Vaccine Immunol. 2016 Jan 13;23(3):228-35. doi: 10.1128/CVI.00604-15.

    PMID: 26762363BACKGROUND
  • Falsey AR, Treanor JJ, Tornieporth N, Capellan J, Gorse GJ. Randomized, double-blind controlled phase 3 trial comparing the immunogenicity of high-dose and standard-dose influenza vaccine in adults 65 years of age and older. J Infect Dis. 2009 Jul 15;200(2):172-80. doi: 10.1086/599790.

    PMID: 19508159BACKGROUND
  • Frey SE, Reyes MR, Reynales H, Bermal NN, Nicolay U, Narasimhan V, Forleo-Neto E, Arora AK. Comparison of the safety and immunogenicity of an MF59(R)-adjuvanted with a non-adjuvanted seasonal influenza vaccine in elderly subjects. Vaccine. 2014 Sep 3;32(39):5027-34. doi: 10.1016/j.vaccine.2014.07.013. Epub 2014 Jul 18.

    PMID: 25045825BACKGROUND
  • Hancock K, Veguilla V, Lu X, Zhong W, Butler EN, Sun H, Liu F, Dong L, DeVos JR, Gargiullo PM, Brammer TL, Cox NJ, Tumpey TM, Katz JM. Cross-reactive antibody responses to the 2009 pandemic H1N1 influenza virus. N Engl J Med. 2009 Nov 12;361(20):1945-52. doi: 10.1056/NEJMoa0906453. Epub 2009 Sep 10.

    PMID: 19745214BACKGROUND
  • Iob A, Brianti G, Zamparo E, Gallo T. Evidence of increased clinical protection of an MF59-adjuvant influenza vaccine compared to a non-adjuvant vaccine among elderly residents of long-term care facilities in Italy. Epidemiol Infect. 2005 Aug;133(4):687-93. doi: 10.1017/s0950268805003936.

    PMID: 16050515BACKGROUND
  • Izurieta HS, Thadani N, Shay DK, Lu Y, Maurer A, Foppa IM, Franks R, Pratt D, Forshee RA, MaCurdy T, Worrall C, Howery AE, Kelman J. Comparative effectiveness of high-dose versus standard-dose influenza vaccines in US residents aged 65 years and older from 2012 to 2013 using Medicare data: a retrospective cohort analysis. Lancet Infect Dis. 2015 Mar;15(3):293-300. doi: 10.1016/S1473-3099(14)71087-4. Epub 2015 Feb 9.

    PMID: 25672568BACKGROUND
  • Izurieta HS, Thadani N, Shay DK. Corrections. Comparative effectiveness of high-dose versus standard-dose influenza vaccines in US residents aged 65 years and older from 2012 to 2013 using Medicare data: a retrospective cohort analysis. Lancet Infect Dis. 2015 Mar;15(3):263. doi: 10.1016/S1473-3099(15)70070-8. No abstract available.

    PMID: 25749223BACKGROUND
  • Mannino S, Villa M, Apolone G, Weiss NS, Groth N, Aquino I, Boldori L, Caramaschi F, Gattinoni A, Malchiodi G, Rothman KJ. Effectiveness of adjuvanted influenza vaccination in elderly subjects in northern Italy. Am J Epidemiol. 2012 Sep 15;176(6):527-33. doi: 10.1093/aje/kws313. Epub 2012 Aug 31.

    PMID: 22940713BACKGROUND
  • Memoli MJ, Shaw PA, Han A, Czajkowski L, Reed S, Athota R, Bristol T, Fargis S, Risos K, Powers JH, Davey RT Jr, Taubenberger JK. Evaluation of Antihemagglutinin and Antineuraminidase Antibodies as Correlates of Protection in an Influenza A/H1N1 Virus Healthy Human Challenge Model. mBio. 2016 Apr 19;7(2):e00417-16. doi: 10.1128/mBio.00417-16.

    PMID: 27094330BACKGROUND
  • Menec VH, MacWilliam L, Aoki FY. Hospitalizations and deaths due to respiratory illnesses during influenza seasons: a comparison of community residents, senior housing residents, and nursing home residents. J Gerontol A Biol Sci Med Sci. 2002 Oct;57(10):M629-35. doi: 10.1093/gerona/57.10.m629.

    PMID: 12242314BACKGROUND
  • Pop-Vicas A, Rahman M, Gozalo PL, Gravenstein S, Mor V. Estimating the Effect of Influenza Vaccination on Nursing Home Residents' Morbidity and Mortality. J Am Geriatr Soc. 2015 Sep;63(9):1798-804. doi: 10.1111/jgs.13617. Epub 2015 Aug 17.

    PMID: 26280675BACKGROUND
  • Richardson DM, Medvedeva EL, Roberts CB, Linkin DR; Centers for Disease Control and Prevention Epicenter Program. Comparative effectiveness of high-dose versus standard-dose influenza vaccination in community-dwelling veterans. Clin Infect Dis. 2015 Jul 15;61(2):171-6. doi: 10.1093/cid/civ261. Epub 2015 Mar 31.

    PMID: 25829001BACKGROUND
  • Van Buynder PG, Konrad S, Van Buynder JL, Brodkin E, Krajden M, Ramler G, Bigham M. The comparative effectiveness of adjuvanted and unadjuvanted trivalent inactivated influenza vaccine (TIV) in the elderly. Vaccine. 2013 Dec 9;31(51):6122-8. doi: 10.1016/j.vaccine.2013.07.059. Epub 2013 Aug 6.

    PMID: 23933368BACKGROUND
  • FDA. 2007. Guidance for Industry Clinical Data Needed to Support the Licensure of Seasonal Inactivated Influenza Vaccines. In Center for Biologics Evaluation and Research.

    BACKGROUND
  • 2013. Long-Term Care Services in the United States: 2013 Overview. In CDC, editor HHS, Disease Control and Prevention, National Center for Health Statistics, Hyattsville, Maryland.

    BACKGROUND
  • Didion EM, Kass JD, Wilk DJ, Buss E, Frischmann SM, Rubeck S, Banks R, Wilson BM, Gravenstein S, Canaday DH. Which Enhanced Influenza Vaccine Has the Greatest Immunogenicity in Long-Term Care Residents: The Adjuvanted or the High-Dose Formulation? J Am Med Dir Assoc. 2025 Jul;26(7):105625. doi: 10.1016/j.jamda.2025.105625. Epub 2025 May 30.

MeSH Terms

Conditions

Influenza, Human

Interventions

fluad vaccine

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Limitations and Caveats

1. For all SVN related outcomes (11, 13, 14, 15) data was only collected for the 2018-2019 season 2. \>38% of values are at upper limit of detection (25% of Day 0 and \>50% of Day 28 values) Thus, the assay fails to capture any variability in values \> 1000. Given how many subjects have values in this range, we are unable to accurately summarize group differences; and a seroconversion endpoint that requires measuring change from d0 to d28 cannot be validly measured given this limitation.

Results Point of Contact

Title
Dr. David Canaday
Organization
University Hospitals Cleveland Medical Center

Study Officials

  • David Canaday, MD

    University Hospitals Cleveland Medical Center/Case Western Reserve University/Louis Stokes Cleveland VA Medical Center

    PRINCIPAL INVESTIGATOR
  • Steven Gravenstein, MD, MPH

    Brown University and Providence VA Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A non-inferiority randomized clinical trial to enroll 500 long term care (LTC) dwellers from at least one of 40 nursing homes sites in northern Ohio. Age 65 and older to receive either Fluad or HD vaccine at 1:1 ratio. Blood will be sampled pre- and post-vaccine and post-influenza season and coded for blinded laboratory analysis. Randomization by from randomizer.org software./RedCAP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Associate Professor of Medicine at Case Western Reserve University and Associate Director, Geriatric, Research, Education and Clinical Center at Louis Stokes Cleveland VA Medical Center

Study Record Dates

First Submitted

September 26, 2018

First Posted

October 3, 2018

Study Start

September 23, 2018

Primary Completion

January 31, 2023

Study Completion

January 31, 2023

Last Updated

April 30, 2024

Results First Posted

April 30, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations