Administration of the Nasal Influenza Vaccine to Children in Daycare or at a Healthcare Facility

January 20, 2026 updated by: Turku University Hospital

The goal of this intervention study is to learn if giving children influenza vaccinations in early childhood education facilities (i.e., daycare) will increase vaccination coverage compared to giving vaccinations only at healthcare. The main question it aims to answer is:

• Does offering children nasal influenza vaccine in daycare result in higher proportion of children getting influenza vaccine.

Researchers will compare daycare setting and healthcare setting as the location of giving influenza vaccines to children to see if more children will get vaccinated if they have an opportunity to receive nasal influenza vaccine at daycare.

Participants in the intervention group will:

• Have the opportunity to receive influenza vaccine in the daycare or in the healthcare

Participants in the comparison group will:

• Have the opportunity to receive influenza vaccine in the healthcare only

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

6000

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Finland
      • Turku, Finland, 20014
        • Recruiting
        • University of Turku
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Attending early childhood education (daycare) in the city of Turku

Exclusion Criteria:

  • No exclusion criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intervention group
Participants are offered a nasal influenza vaccine at daycare
Behavioral: Possibility to get live attenuated nasal influenza vaccine at daycare
The intervention is the possibility to get influenza vaccine in the daycare, in comparison to routine practice of getting influenza vaccine in a healthcare setting.
No Intervention: Comparison group
Participants are not offered a nasal influenza vaccine at daycare

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Influenza vaccination coverage
Time Frame: From enrollment to the end of seasonal influenza vaccinations about 3 to 10 weeks later.
Study child receiving any influenza vaccine
From enrollment to the end of seasonal influenza vaccinations about 3 to 10 weeks later.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Turku University Hospital

Collaborators

University of Turku

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 27, 2025

Primary Completion (Estimated)

March 31, 2026

Study Completion (Estimated)

March 31, 2026

Study Registration Dates

First Submitted

December 16, 2025

First Submitted That Met QC Criteria

December 16, 2025

First Posted (Actual)

December 30, 2025

Study Record Updates

Last Update Posted (Actual)

January 22, 2026

Last Update Submitted That Met QC Criteria

January 20, 2026

Last Verified

December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • T2025/11144

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

According to national regulations, it is not allowed to share individual health data.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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