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Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Fluzone® Quadrivalent, Flublok® Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines, 2018-2019 Formulations

ClinicalTrials.gov ID: NCT03617523

Public ClinicalTrials.gov record NCT03617523. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 8:50 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary objectives of this study were: * To describe the immunogenicity of the 2018-2019 formulation of Fluzone® Quadrivalent vaccine in children 6 to less than (\<) 36 months of age and 3 to \<9 years of age, and in adults 18 to \<65 years of age; the immunogenicity of the 2018-2019 formulation of Flublok® Quadrivalent vaccine in adults 18 to \<65 years of age; and the immunogenicity of the 2018-2019 formulation of Fluzone High-Dose vaccine in adults greater than or equal to (\>=) 65 years of age. * To describe the safety of the 2018-2019 formulation of Fluzone Quadrivalent vaccine in children 6 to \<36 months of age and 3 to \<9 years of age, and in adults 18 to \<65 years of age; the safety of the 2018-2019 formulation of Flublok Quadrivalent vaccine in adults 18 to \<65 years of age; and the safety of the 2018-2019 formulation of Fluzone High-Dose vaccine in adults \>=65 years of age.

Study identification

NCT ID
NCT03617523
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Enrollment
240 participants

Conditions and interventions

Eligibility (public fields only)

Age range
6 Months and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 9, 2018
Primary completion
Nov 11, 2018
Completion
Nov 11, 2018
Last update posted
Mar 28, 2022

2018

United States locations

U.S. sites
3
U.S. states
3
U.S. cities
3
Facility City State ZIP Site status
Investigational Site Number 8400003 Bardstown Kentucky 40004
Investigational Site Number 8400001 Metairie Louisiana 70006
Investigational Site Number 8400002 Salt Lake City Utah 84121

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03617523, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 28, 2022 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03617523 live on ClinicalTrials.gov.

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