Immunogenicity Trial of Egg- Versus Non-Egg-Based Influenza Vaccines Among HCP
Public ClinicalTrials.gov record NCT03722589. 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
Randomized Open-Label Trial to Compare the Immunogenicity of Cell Culture-Based and Recombinant Unadjuvanted Quadrivalent Influenza Vaccines to Conventional Egg-Based Unadjuvanted Quadrivalent Influenza Vaccines Among Healthcare Personnel Aged 18-64 Years
Study identification
- NCT ID
- NCT03722589
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- Centers for Disease Control and Prevention
- Federal
- Enrollment
- 944 participants
Conditions and interventions
Conditions
Interventions
- Fluarix Biological
- Flublok Biological
- Flucelvax Biological
- Fluzone Biological
- Fluzone High-Dose Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years to 65 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 11, 2018
- Primary completion
- Jul 30, 2020
- Completion
- Jul 30, 2020
- Last update posted
- Jul 21, 2024
2018 – 2020
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Kaiser Permanente Northwest | Portland | Oregon | 97227 | — |
| Baylor Scott and White Health | Temple | Texas | 76543 | — |
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 NCT03722589, 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 Jul 21, 2024 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03722589 live on ClinicalTrials.gov.