# Effect of Modified Playground Environment on Health, Particularly Immune System

> **NCT03997175** · NA · COMPLETED · sponsor: **University of Helsinki** · enrollment: 25 (actual)

## Conditions studied

- Atopic Disorders
- Immune System Diseases

## Interventions

- **OTHER:** Biodiversity powder
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT03997175
- **Lead sponsor:** University of Helsinki
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-04-15
- **Primary completion:** 2018-07-30
- **Final completion:** 2018-07-30
- **Target enrollment:** 25 (ACTUAL)
- **Last updated:** 2019-06-25

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03997175

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03997175, "Effect of Modified Playground Environment on Health, Particularly Immune System". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT03997175. Licensed CC0.

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