NCT04109222

Brief Summary

The primary objective of the study was to provide sera (collected from participants before vaccination \[Blood Sample 1\] and after final vaccination \[Blood Sample 2\]) to the Center for Biologics Evaluation and Research (CBER) for further analysis by the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA) to support formulation recommendations for subsequent influenza vaccines.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
90

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2019

Shorter than P25 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

First Submitted

Initial submission to the registry

September 26, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 30, 2019

Completed
Same day until next milestone

Study Start

First participant enrolled

September 30, 2019

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 10, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 10, 2019

Completed
1 year until next milestone

Results Posted

Study results publicly available

December 17, 2020

Completed
Last Updated

September 12, 2025

Status Verified

September 1, 2025

Enrollment Period

2 months

First QC Date

September 26, 2019

Results QC Date

November 20, 2020

Last Update Submit

September 11, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Number of Participants Aged 6 Months to < 9 Years Who Provided Serum Samples for Analysis: Groups 1 and 2

    Blood samples were collected from participants before first vaccination at Visit 1 (Day 0; pre-vaccination) and at Day 28 after final vaccination either at Visit 2 (Visit 1 + 28 days) for participants who received 1 dose of influenza vaccine; or at Visit 3 (Visit 2 + 28 days) for participants who received 2 doses of influenza vaccine as recommended by ACIP. Collected blood samples were provided to Center for Biologics Evaluation and Research (CBER) for further analysis by World Health Organization (WHO), Centers for Disease Control and Prevention (CDC), and Food and Drug Administration (FDA) to support formulation recommendations for subsequent influenza vaccines.

    Visit 1 (Day 0; pre-vaccination) and 28 days post-final vaccination at Visit 2/Visit 3

  • Number of Participants Aged >= 65 Years Who Provided Serum Samples for Analysis: Group 3

    Blood samples were collected from participants before vaccination at Visit 1 (Day 0; pre-vaccination) and 21 days after vaccination (Visit 2). Collected blood samples were provided to CBER for further analysis by WHO, CDC, and FDA to support formulation recommendations for subsequent influenza vaccines.

    Visit 1 (Day 0; pre-vaccination) and 21 days post-vaccination (Visit 2)

Study Arms (3)

Group 1: Fluzone Quadrivalent Influenza vaccine: 6 to < 36 Months

EXPERIMENTAL

Participants aged 6 to \<36 months received a 0.5-milliliters (mL) dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 0. Participants for whom 2 doses of influenza vaccine were recommended per ACIP, a second dose was administered at Day 28.

Biological: Fluzone Quadrivalent vaccine, no preservative (0.5-mL), 2019-2020 formulation

Group 2: Fluzone Quadrivalent Influenza Vaccine: 3 to < 9 years

EXPERIMENTAL

Participants aged 3 to 9 years received a 0.5-mL dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 0. Participants for whom 2 doses of influenza vaccine were recommended per ACIP, a second dose was administered at Day 28.

Biological: Fluzone Quadrivalent vaccine, no preservative (0.5-mL), 2019-2020 formulation

Group 3: Fluzone High-Dose Influenza Vaccine: >= 65 years

EXPERIMENTAL

Participants aged \>=65 years received a of 0.5-mL dose of Fluzone high-dose vaccine, intramuscularly, at Day 0.

Biological: Fluzone High-Dose vaccine, 2019-2020 formulation

Interventions

Pharmaceutical form: Suspension for injection Route of administration: Intramuscular

Also known as: Fluzone® Quadrivalent, No Preservative
Group 1: Fluzone Quadrivalent Influenza vaccine: 6 to < 36 MonthsGroup 2: Fluzone Quadrivalent Influenza Vaccine: 3 to < 9 years

Pharmaceutical form: Suspension for injection Route of administration: Intramuscular

Group 3: Fluzone High-Dose Influenza Vaccine: >= 65 years

Eligibility Criteria

Age6 Months - 83 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • An individual who fulfilled all of the following criteria were eligible for study enrollment:
  • Aged 6 months to \< 9 years or \>= 65 years of age on the day of first study vaccination (study product administration).
  • For participants 6 to \< 12 months of age, born at full term of pregnancy (\>= 37 weeks) and with a birth weight \>= 5.5 pounds (2.5 kilograms).
  • Informed consent form (ICF) had been signed and dated by participants \>= 65 years of age.
  • Assent form had been signed and dated by participants 7 to \< 9 years of age, and ICF had been signed and dated by parent(s) or guardian(s) for participants 6 months to \< 9 years of age.
  • Participant and parent/guardian (of participants 6 months to \< 9 years of age) were able to attend all scheduled visits and complied with all study procedures.

You may not qualify if:

  • An individual who fulfilled any of the following criteria were excluded from study enrollment:
  • Participation at the time of study enrollment (or in the 30 days preceding the first study vaccination) or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure.
  • Receipt of any vaccine in the 30 days preceding the first study vaccination, or planned receipt of any vaccine before Visit 2 for participants receiving 1 dose of influenza vaccine or Visit 3 for participants receiving 2 doses of influenza vaccine.
  • Previous vaccination against influenza (in the 2019-2020 influenza season) with either study vaccine or another vaccine.
  • Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to study vaccine or to a vaccine containing any of the same substances.
  • Thrombocytopenia, which might be a contraindication for intramuscular vaccination, at the discretion of the Investigator.
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily.
  • Current alcohol abuse or drug addiction.
  • Chronic illness that, in the opinion of the Investigator, was at a stage where it might interfere with study conduct or completion.
  • Moderate or severe acute illness/infection (according to Investigator judgment) on the day of planned vaccination or febrile illness (temperature \>= 100.4 degree (°) Fahrenheit \[38.0 °Celsius\]). A prospective participant were not included in the study until the condition had resolved or the febrile event had subsided.
  • Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) or in-laws of the Investigator or employee with direct involvement in the proposed study.
  • History of serious adverse reaction to any influenza vaccine.
  • Personal history of Guillain-Barré syndrome.
  • Any condition that in the opinion of the Investigator would pose a health risk to the participants if enrolled or could interfere with the evaluation of the vaccine.
  • Personal history of clinically significant developmental delay (at the discretion of the Investigator), neurologic disorder, or seizure disorder.
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Investigational Site Number 8400002

Bardstown, Kentucky, 40004, United States

Location

Investigational Site Number 8400001

Salt Lake City, Utah, 84121, United States

Location

Related Links

MeSH Terms

Conditions

Influenza, Human

Interventions

Influenza VaccinesVaccines

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Trial Transparency Team
Organization
Sanofi Pasteur

Study Officials

  • Clinical Sciences & Operations

    Sanofi Pasteur, a Sanofi Company

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 26, 2019

First Posted

September 30, 2019

Study Start

September 30, 2019

Primary Completion

December 10, 2019

Study Completion

December 10, 2019

Last Updated

September 12, 2025

Results First Posted

December 17, 2020

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will share

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Locations