NCT02263040

Brief Summary

The objective of this pilot study is to assess the immunogenicity and reactogenicity of Fluzone High Dose with Fluzone (standard adult dose) influenza vaccines in healthcare workers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
170

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Oct 2014

Typical duration for phase_1

Geographic Reach
1 country

1 active site

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

October 1, 2014

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

October 8, 2014

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 13, 2014

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2016

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2016

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

January 28, 2019

Completed
Last Updated

January 28, 2019

Status Verified

August 1, 2018

Enrollment Period

1.8 years

First QC Date

October 8, 2014

Results QC Date

October 13, 2017

Last Update Submit

August 14, 2018

Conditions

Keywords

influenza vaccineadultimmunogenicityreactogenicity

Outcome Measures

Primary Outcomes (5)

  • Number of Participants With Seroconversion to A/California/07/2009 (H1N1)

    Seroconversion to influenza strains contained in the vaccine, as measured by hemagglutination inhibition (HAI) assay. 4-fold or greater increase.

    21 days (18-28)

  • Number of Participants With Seroconversion to A/Texas/50/2012 (H3N2)

    Four-fold or higher rise in titres to A/Texas/50/2012 (H3N2) as measured by hemagglutination inhibition assay

    21 days post vaccination (18-28)

  • Number of Participants With Seroconversion to Influenza B/Phuket/3073/2013

    Four fold or higher increase in titres to B/Phuket/3073/2013 as measured by hemagglutination inhibition assay

    21 days post-vaccination (18-28)

  • Number of Participants With Seroconversion to A/Switzerland/9715293/2013 (H3N2)

    Four-fold or higher rise in titres against A/Switzerland/9715293/2013 (H3N2) as measured by hemagglutination inhibition assay

    21 days post vaccination (18-28)

  • Number of Participants With Seroconversion to B/Massachusetts/02/2012

    Four fold or higher increase in titres to B/Massachusetts/02/2012 as measured by hemagglutination inhibition assay

    21 days post-vaccination (18-28)

Secondary Outcomes (7)

  • Geometric Mean Fold Ratio (GMFR) Against A/California/07/2009 (H1N1)

    21 days (18-28)

  • Geometric Mean Fold Ratio (GMFR): A/Switzerland/9715293/2013

    21 days (18-28)

  • Geometric Mean Fold Ratio (GMFR): A/Texas/50/2012

    21 days (18-28)

  • Geometric Mean Fold Ratio (GMFR): B/Phuket/3073/2013 Ether-treated

    21 days (18-28)

  • Geometric Mean Fold Ratio (GMFR): B/Massachusetts/02/2012 Ether-treated

    21 days (18-28)

  • +2 more secondary outcomes

Study Arms (2)

High Dose Fluzone

EXPERIMENTAL

Fluzone High-Dose® Licensed for use in the USA in persons ≥ 65 years of age as a single dose of 0.5 mL containing 60μg hemagglutinin per virus strain

Biological: Fluzone High-Dose

Fluzone (standard dose)

ACTIVE COMPARATOR

Fluzone ® Licensed for the prevention of influenza as a single dose of 0.5 mL containing 15μg hemagglutinin per virus strain for adults

Biological: Fluzone (standard dose)

Interventions

Influenza vaccine

High Dose Fluzone

Influenza vaccine

Fluzone (standard dose)

Eligibility Criteria

Age18 Years - 64 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • years old, inclusive, as of October 1st of year of enrolment;
  • Healthcare worker, broadly defined as a person either providing health care, or working in an acute care hospital or long term healthcare facility;
  • Has access to email and the internet for adverse event reporting, or is willing to complete forms on paper and deliver to the site study office;
  • Understand the study, agree to its requirements, and give written consent;

You may not qualify if:

  • Receipt of influenza vaccine for the current northern hemisphere season prior to randomization;
  • Serious adverse event to a previous dose of influenza vaccine;
  • Immunoglobulin E mediated allergic reaction to a previous dose of influenza vaccine or to any excipients in the study vaccines
  • Previous episode of Guillain-Barré syndrome with 6 weeks of receiving an influenza vaccine;
  • Receipt of immunoglobulins, blood or blood-derived products in the past 3 months;
  • Receipt of another vaccine, or initiation of new medication, or hospital admission for any reason within the 30 days prior to the study dose of vaccine
  • Plans to receive any vaccine, initiate any medication, or be admitted to hospital before day 21 after vaccination (visit 2);
  • Known or suspected congenital or acquired immunodeficiency (including HIV infection); or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
  • Any condition, including but not limited to drug and alcohol addiction, which, in the opinion of the investigator might interfere with the ability to comply with trial conduct or completion;
  • Moderate or severe acute illness or active infection or fever (temperature ≥37.8oC) on the day the vaccine dose is due (participant may receive dose of vaccine 48 hours after symptoms have resolved and body temperature has returned to normal without the use of antipyretics.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mount Sinai Hospital

Toronto, Ontario, M5G 1X5, Canada

Location

MeSH Terms

Conditions

Influenza, Human

Interventions

Fluzone High-DoseInfluenza Vaccines

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Dr. Allison McGeer
Organization
Mount Sinai Hospital, Toronto

Study Officials

  • Allison J McGeer, MD

    MOUNT SINAI HOSPITAL

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 8, 2014

First Posted

October 13, 2014

Study Start

October 1, 2014

Primary Completion

July 1, 2016

Study Completion

December 31, 2016

Last Updated

January 28, 2019

Results First Posted

January 28, 2019

Record last verified: 2018-08

Locations