NCT07310472

Brief Summary

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

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
6,000

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 27, 2025

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 16, 2025

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 30, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2026

Completed
Last Updated

January 22, 2026

Status Verified

December 1, 2025

Enrollment Period

5 months

First QC Date

December 16, 2025

Last Update Submit

January 20, 2026

Conditions

Keywords

InfluenzaChildrenVaccination coverageNasal influenza vaccine

Outcome Measures

Primary Outcomes (1)

  • Influenza vaccination coverage

    Study child receiving any influenza vaccine

    From enrollment to the end of seasonal influenza vaccinations about 3 to 10 weeks later.

Study Arms (2)

Intervention group

EXPERIMENTAL

Participants are offered a nasal influenza vaccine at daycare

Behavioral: Possibility to get live attenuated nasal influenza vaccine at daycare

Comparison group

NO INTERVENTION

Participants are not offered a nasal influenza vaccine at daycare

Interventions

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.

Intervention group

Eligibility Criteria

Age2 Years - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Turku

Turku, 20014, Finland

RECRUITING

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Central Study Contacts

Ville Peltola, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Cluster-randomized study, daycare units being clusters for randomization. Data collection from the vaccination registry.
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 16, 2025

First Posted

December 30, 2025

Study Start

October 27, 2025

Primary Completion

March 31, 2026

Study Completion

March 31, 2026

Last Updated

January 22, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

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

Locations