Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2020-2021 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT ID: NCT04551677

Last Updated: 2025-09-12

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-16

Study Completion Date

2020-12-18

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Primary Objective:

To provide serum samples (collected from participants before vaccination \[Blood Sample 1\] and after final vaccination \[Blood Sample 2\]) to Center for Biologics Evaluation and Research (CBER) for further analysis by the 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. In addition, serum samples from adult participants may be further analyzed by the Sponsor to assess breadth of immune response induced by the study vaccines.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Study duration per participant was approximately 28 days for participants 6 months to less than (\<) 9 years of age, and 21 days for participants greater than or equal to (\>=) 65 years of age, including 1 to 3 visits (1 or 2 vaccination visits) and 1 or 2 telephone calls, depending on study Group.

The aim of study GRC00101 was to obtain serum samples for submission to CBER to aid in the influenza vaccine strain selection process. There were no outcome measures defined in the protocol; however, the number of collected samples was listed as an outcome for disclosure purposes since outcomes were mandatory for study registration.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Influenza Immunization Healthy Volunteers

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

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

Participants aged 6 to \<36 months received a 0.5-milliliters (mL) dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 1. Participants for whom 2 doses of influenza vaccine were recommended per Advisory Committee on Immunization Practices (ACIP), a second dose was administered at Day 28.

Group Type EXPERIMENTAL

Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation

Intervention Type BIOLOGICAL

Pharmaceutical form: Suspension for injection in a pre-filled syringe,

Route of administration: Intramuscular (IM)

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

Participants aged 3 to \<9 years received a 0.5-mL dose of Fluzone Quadrivalent vaccine, intramuscularly, at Day 1. Participants for whom 2 doses of influenza vaccine were recommended per ACIP, a second dose was administered at Day 28.

Group Type EXPERIMENTAL

Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation

Intervention Type BIOLOGICAL

Pharmaceutical form: Suspension for injection in a pre-filled syringe,

Route of administration: Intramuscular (IM)

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

Participants aged \>=65 years received a 0.7-mL dose of Fluzone High-Dose Quadrivalent vaccine intramuscularly at Day 1.

Group Type EXPERIMENTAL

Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2020-2021 formulation

Intervention Type BIOLOGICAL

Pharmaceutical form: Suspension for injection in a pre-filled syringe,

Route of administration: IM

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation

Pharmaceutical form: Suspension for injection in a pre-filled syringe,

Route of administration: Intramuscular (IM)

Intervention Type BIOLOGICAL

Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2020-2021 formulation

Pharmaceutical form: Suspension for injection in a pre-filled syringe,

Route of administration: IM

Intervention Type BIOLOGICAL

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Fluzone® Quadrivalent Fluzone High-Dose Quadrivalent

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* 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 pound (lbs) (2.5 kilograms \[kg\]).
* Informed consent form (ICF) was signed and dated by participants \>=65 years of age.
* Assent form was signed and dated by participants 7 to \<9 years of age, and ICF was signed and dated by parent(s) or guardian(s) for participants 6 months to \< 9years of age.
* Participants and parent/guardian (of participants 6 months to \<9 years of age) were able to attend all scheduled visits and to comply with all study procedures.

Exclusion Criteria

\- 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.

Note: Participants were considered eligible for enrollment if no intervention for the other study occurred within the 30 days prior to the first study vaccination and none are planned before the participant would complete safety surveillance for the present study.

* Receipt of any vaccine in the 30 days preceding the first study vaccination, or planned receipt of any vaccine before Visit 2 for participants received 1 dose of influenza vaccine or Visit 3 for participants received 2 doses of influenza vaccine.
* Previous vaccination against influenza (in the 2020-2021 influenza season) with either study vaccine or another vaccine.
* Receipt of immune globulins, blood, or blood-derived products in the 3 months preceding planned inclusion.
* Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the 6 months preceding planned inclusion; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the 3 months preceding planned inclusion).
* 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.

Note: The list of vaccine components was included in the Prescribing Information for each study vaccine.

* Thrombocytopenia, which might be a contraindication for IM vaccination, at the discretion of the Investigator.
* Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination.
* 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 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 participant 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.
* Known seropositivity for human immunodeficiency virus, hepatitis B, or hepatitis C.

The above information was not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Minimum Eligible Age

6 Months

Maximum Eligible Age

84 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Sanofi Pasteur, a Sanofi Company

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Clinical Sciences & Operations

Role: STUDY_DIRECTOR

Sanofi Pasteur, a Sanofi Company

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Investigational Site Number 8400001

Bardstown, Kentucky, United States

Site Status

Investigational Site Number 8400002

Salt Lake City, Utah, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Related Links

Access external resources that provide additional context or updates about the study.

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

U1111-1238-1821

Identifier Type: OTHER

Identifier Source: secondary_id

GRC00101

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.