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
Public ClinicalTrials.gov record NCT04551677. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Collection of Serum Samples From Children 6 Months to < 9 Years of Age Who Received Fluzone® Quadrivalent and Adults ≥ 65 Years of Age Who Received Fluzone® High-Dose Quadrivalent, Influenza Vaccines, 2020-2021 Formulations
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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.
Study identification
- NCT ID
- NCT04551677
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 90 participants
Conditions and interventions
Conditions
Interventions
- Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation Biological
- Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2020-2021 formulation Biological
Biological
Eligibility (public fields only)
- Age range
- 6 Months to 84 Years
- 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 15, 2020
- Primary completion
- Dec 17, 2020
- Completion
- Dec 17, 2020
- Last update posted
- Sep 11, 2025
2020
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Investigational Site Number 8400001 | Bardstown | Kentucky | 40004 | — |
| 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.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04551677, 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 Sep 11, 2025 · Synced Sep 5, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04551677 live on ClinicalTrials.gov.