Flu Vaccine Study: LAIV in Young Children

We are studying how the LAIV flu vaccine affects the immune response in young children. This research aims to see how well it protects against flu and influences overall health.

≤3 months ≤5 visits Monitoring phase (IV)No Placebo Cost Reimbursement Investigational MedicinesPediatricsPulmonology

What diseases are being studied?

Health conditions and diseases that the clinical trial is designed to study and treat.

Who can participate in the clinical trial?

These questions help us understand your situation so we can let the trial team know whether you might be a potential match. This is not a medical evaluation and is not part of the official screening, the study doctor will make the final decision..

What active substances are being studied?

Active substances that are officially approved for use in the European Union and considered safe by EMA. These substances are already on the market and may be tested for new conditions or populations.

Influenza Virus A/Thailand/8/2022 (H3n2)-Like Strain (A/Thailand/8/2022, Medi 370626)

This influenza A (H3N2) strain is used as a vaccine component to help the immune system recognize and protect against that H3N2 flu.

Influenza Virus A/Victoria/4897/2022 (H1n1)pdm09 - Like Strain (A/Norway/31694/2022, Medi 369815)

An influenza A (H1N1)pdm09-like virus strain used in vaccines to stimulate the body's immune protection against H1N1 flu.

Influenza Virus B/Austria/1359417/2021 - Like Strain (B/Austria/1359417/2021, Medi 355292)

An influenza B virus strain used to stimulate immune protection against seasonal flu.

What experimental substances are being tested?

Experimental substances that are being investigated in this clinical trial. These are not yet approved for general use.

Fluenz

Sponsor: Leids Universitair Medisch Centrum (LUMC)

Last updated: Nov 27, 2025

Disclaimer: Parts of this content have been automatically extracted from the EU Clinical Trials registry. While we strive for accuracy, please always contact the trial site or sponsor directly for correct and official information before making any decisions about participation. View on EU Clinical Trials.