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Immunogenicity of Concomitant Administration of COVID-19 Vaccines With Influenza Vaccines

Immunogenicity of Concomitant Administration of Omicron-containing COVID-19 Vaccines With Influenza Vaccines : In-depth Immunogenicity Analysis.

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06091410
Enrollment
62
Registered
2023-10-19
Start date
2023-09-25
Completion date
2025-06-25
Last updated
2024-03-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Contaminant Injected, COVID-19, Influenza, Vaccine Reaction

Keywords

COVID-19 vaccine, influenza vaccine, immunogenicity, co-administration

Brief summary

The goal is to evaluate the in-depth immunogenicity analysis (including B-cell and T-cell response) of coadministration of a omicron-containing COVID-19 vaccine and influenza vaccine among healthy adults during 2023-24 season.

Detailed description

This was an open-label, randomized clinical trial conducted at the International St. Mary's Hospital in Incheon, South Korea. This study included two study groups: Concomitant administration of omicron containing messenger ribonucleic acid (mRNA) COVID-19 booster and quadrivalent influenza vaccination (QIV) and separate administration of influenza vaccination followed by mRNA booster ≥4 weeks later * immunogenicity analysis : Blood was drawn at baseline and follow-up visit 4 weeks, 3 months, 6 months, 10-12 months after immunization(For the COVID-19 vaccine, additional blood sampling will be conducted one week after vaccination). * safety analysis : At 7 days after each vaccine dose, the participants were requested to record the occurrence, severity of solicited adverse events (AEs) through a standardized electronic questionnaire. Participants were also asked to record any unsolicited AEs during the 28 days after vaccination.

Interventions

BIOLOGICALOmicron-containing COVID-19 vaccine

The COVID-19 vaccine approved for use in the 2023-2024 season

BIOLOGICALinfluenza vaccine

inactivated vaccine containing 15μg hemagglutinin antigen/strain in each 0.5-mL dose, containing four influenza vaccine strains from the 2023-2024 northern hemisphere season

Sponsors

Korea University Guro Hospital
CollaboratorOTHER
Catholic Kwandong University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Intervention model description

prospective, randomized clinical cohort study

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* who agreed to receive both booster COVID-19 vaccine and influenza vaccine * individuals who have received the COVID-19 vaccine three or more times and have passed at least 3 months after the last vaccination * individuals with a history of a single SARS-CoV-2 infection during the Omicron outbreak period (January 2022-February 2023)

Exclusion criteria

* individuals with a contraindication to any of the vaccine compounds * individuals with a history of influenza infection within the past 6 months

Design outcomes

Primary

MeasureTime frameDescription
geometric mean titer against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)at 7, 28 days, 3, 6, and 10-12 months after COVID-19 vaccinationgeometric mean titer against SARS-CoV-2 (Anti-S immunoglobulin G, Neutralizing antibody)

Secondary

MeasureTime frameDescription
geometric mean titer against four influenza strainat 28 days and 7 months after influenza vaccinationgeometric mean titer against four influenza strain
vaccine-induced B-cell responsesat 7, 28 days, 6, and 10-12 months after COVID-19 vaccinationvaccine-induced B-cell responses and their immune interactions between COVID-19 and influenza vaccines
vaccine-induced CD4+ T cell responsesat 7, 28 days, 6, and 10-12 months after COVID-19 vaccinationvaccine-induced CD4+ T cell responses and their immune interactions between COVID-19 and influenza vaccines
The incidence rate of adverse eventswithin 28 daysThe incidence rate of adverse events within 7 days, 28 days, and serious adverse events

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026