CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 455 enrolled
Drug / intervention
Simultaneous Vaccination (Influenza Vaccine and mRNA COVID booster) +2 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06020118
NCT06020118Phase 4Completed
CompareCT.gov

Randomized Study of the Immunogenicity and Duration of Antibody Response Against Circulating SARS-CoV-2 Variant and Influenza Viruses Following Concomitant Versus Sequential Administration of mRNA COVID-19 Vaccine and Quadrivalent Cell Culture-based Influenza Vaccine Among Children and Adults

Duke University·interventional·Posted Aug 31, 2023·Updated Jun 13, 2025

In Brief

A Phase 4 clinical trial evaluating Simultaneous Vaccination (Influenza Vaccine and mRNA COVID booster), Sequential Vaccination (Influenza vaccine then mRNA COVID booster), and 1 other intervention for Influenza and COVID-19. Completed, enrolled 455 participants across 8 sites.

Detailed Summary

This is a prospective, randomized randomized immunologic study of response to influenza and SARS-CoV-2 vaccination across four of the US Influenza Vaccine Effectiveness (Flu VE) Network study sites.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsInfluenza, COVID-19
CountriesUnited States
CollaboratorsCenters for Disease Control and Prevention, Arizona State University, University Hospitals Cleveland Medical Center, University of Pittsburgh, Washington University School of Medicine, Valleywise Health, Cleveland VA Medical Center, Senders Pediatrics

Timeline

Phase 4CompletedFinished
202420252026
First PostedAug 31, 2023
Enrollment StartSep 25, 2023
Primary CompletionMar 7, 2024
Study CompletionMay 17, 2024
TodayJul 2, 2026
Enrollment to primary: 5 monthsPosted 2.8 years ago

Interventions

Simultaneous Vaccination (Influenza Vaccine and mRNA COVID booster)biological

Influenza vaccination and mRNA COVID-19 booster will be given at Visit 1.

Sequential Vaccination (Influenza vaccine then mRNA COVID booster)biological

Influenza vaccine will be given at Visit 1 and mRNA COVID booster will be given at Visit 2.

Sequential Vaccination (mRNA COVID booster then Influenza vaccine)biological

mRNA COVID booster will be given at Visit 1 and Influenza vaccine will be given at Visit 2.