# The Effectiveness of Early Immunisation With Nirsevimab on Preschool Wheezing in France, Based on an Analysis of Data From the French Health System Database.

> **NCT07317141** · — · NOT_YET_RECRUITING · sponsor: **Hospices Civils de Lyon** · enrollment: 218000 (estimated)

## Conditions studied

- Infant Wheeze
- Preschool Age Children
- Asthma Childhood

## Interventions

- **OTHER:** Effectiveness of passive immunization with nirsevimab

## Key facts

- **NCT ID:** NCT07317141
- **Lead sponsor:** Hospices Civils de Lyon
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2026-01-01
- **Primary completion:** 2027-06-01
- **Final completion:** 2029-06-01
- **Target enrollment:** 218000 (ESTIMATED)
- **Last updated:** 2026-01-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07317141

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07317141, "The Effectiveness of Early Immunisation With Nirsevimab on Preschool Wheezing in France, Based on an Analysis of Data From the French Health System Database.". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT07317141. Licensed CC0.

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