Plain-English translation of NCT06390878 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
Researchers are testing whether redesigning kindergarten yards with more plants, soil, and natural biodiversity can help prevent allergies, asthma, and other immune-related illnesses in young children. The study will compare children who play in these nature-rich yards with children in standard yards, and measure changes in their skin bacteria, gut bacteria, immune markers, stress levels, and thinking skills.
City life and modern building practices have reduced children's contact with diverse natural environments, which may be why more urban children are developing allergies, asthma, and other immune disorders. Researchers believe that exposing young children to more biodiversity and natural elements may strengthen their immune systems and prevent these conditions from developing.
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Your child will attend their kindergarten as usual, but half the participating kindergartens will have their yards redesigned with natural plants and biodiversity features. All yards will have playground equipment. Some families will provide saliva, skin, and stool samples, and answer health questionnaires about allergies, infections, and behavior over the study period.
AI-generated summary from trial data · Jun 3, 2026 · Not medical advice
Finland
Sponsor
Natural Resources Institute Finland
Collaborators
Tampere University
Enrollment target
~320 participants
Started
May 2024
Primary completion
August 2027
Age range
1 Year – 5 Years
Last updated on clinicaltrials.gov in June 2024.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Sanna Hurtola
Natural Resources Institute Finland
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.