NCT02250274

Brief Summary

The purpose of this study is to assess the serologic and cell-mediated immune response to licensed live attenuated influenza vaccine (LAIV) and inactivated influenza vaccine (IIV) in children 5-17 years old. The effects of prior infection and or prior season vaccination will be examined. Children will be followed during the influenza season to identify laboratory-confirmed influenza (i.e. vaccine failure).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
131

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2014

Shorter than P25 for phase_4

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2014

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

September 17, 2014

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 26, 2014

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2014

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2015

Completed
11 months until next milestone

Results Posted

Study results publicly available

February 26, 2016

Completed
Last Updated

April 26, 2018

Status Verified

March 1, 2018

Enrollment Period

3 months

First QC Date

September 17, 2014

Results QC Date

September 22, 2015

Last Update Submit

March 26, 2018

Conditions

Keywords

Immune response to influenza vaccinePCR confirmed Influenza A virusPCR confirmed Influenza B virus

Outcome Measures

Primary Outcomes (1)

  • Hemagglutination Inhibition (HI) Titer Response to Vaccine and Circulating Strains of Influenza

    Change from Baseline to 28 days

Secondary Outcomes (3)

  • Polymerase Chain Reaction (PCR) Confirmed Influenza Illness

    Onset >13 days after vaccination and before April 1, 2015

  • Antibody Dependent Cellular Cytotoxicity (ADCC) Titers

    Change from Baseline to 28 days

  • Ratio Between Immunoglobulin A (IgA):Immunoglobulin G (IgG)

    Day 7

Study Arms (2)

LAIV 2014-15

OTHER

Will receive LAIV this year. Includes 5-8 year olds and approximately half of the 9-17 year olds. Prior history includes vaccine failures, vaccinated/uninfected and unvaccinated/uninfected last year. PBMC available for those who were infected last year, all ages.

Biological: LAIV

IIV 2014-15

OTHER

Will receive IIV this year. Includes only 9-17 year olds (unless shortages of LAIV encountered). Prior history includes vaccine failures, vaccinated/uninfected and unvaccinated/uninfected last year. PBMC available for those who were infected last year, only 9-17 year olds.

Biological: IIV

Interventions

LAIVBIOLOGICAL

Licensed and approved Live Attenuated Influenza Vaccination (LAIV) will be preferentially given to all children aged 5-8 years old as recommended by Advisory Committee on Immunization Practices. A modified randomization scheme in which every other child aged 9-17 years enrolled in the study will be given LAIV will be used. The rest of the children aged 9-17 years old will receive IIV.

Also known as: FluMist
LAIV 2014-15
IIVBIOLOGICAL

A modified randomization scheme in which every other child aged 9-17 years enrolled in the study will be given IIV will be used. The rest of the children 9-17 years old will receive LAIV. \[Note: Although we do not anticipate exhausting the supply of LAIV, should this occur, children aged 5-8 will be offered IIV as it is also approved in this age group and should be used if LAIV is unavailable.\]

Also known as: FluZone
IIV 2014-15

Eligibility Criteria

Age5 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Aged 5-17 years for the duration of the study period (Sept 1, 2014-Apr 1, 2015)
  • Enrolled in either the immune response study or the vaccine effectiveness study conducted at the site in the 2013-14 influenza season
  • If enrolled in the vaccine effectiveness study the previous season must have either been vaccinated and infected with influenza or unvaccinated and uninfected with influenza

You may not qualify if:

  • Children with contraindications to either the quadrivalent live attenuated influenza vaccine or to the trivalent inactivated influenza vaccine will be excluded.
  • Anyone unwilling or unable to complete all required study activities including informed consent
  • Subjects who already received the influenza vaccine for the 2014-15 season

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Marshfield Clinic - Marshfield Center

Marshfield, Wisconsin, 54449, United States

Location

MeSH Terms

Interventions

FluMistInfluenza Vaccines

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Director of the Center for Clinical Epidemiology & Population Health
Organization
Marshfield Clinic Research Foundation

Study Officials

  • Edward A Belongia, MD

    Marshfield Clinic Research Foundation - Center for Clinical Epidemiology & Population Health

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Center for Clinical Epidemiology and Population Health

Study Record Dates

First Submitted

September 17, 2014

First Posted

September 26, 2014

Study Start

September 1, 2014

Primary Completion

December 1, 2014

Study Completion

April 1, 2015

Last Updated

April 26, 2018

Results First Posted

February 26, 2016

Record last verified: 2018-03

Data Sharing

IPD Sharing
Will not share

There is a plan to publish the results of the study in a manuscript but no plans to release individual level data as the results are not clinically actionable.

Locations