Clinical trial Recruiting at 1 site Observational Ages 0 to 2

Examining the impact of COVID-19 on RSV-related emergency visits in children

Official title: Impact of Covid-19 on Respiratory Syncytial Virus Seasonality and Disease Severity in UK Children (BronchStart)

Run by University Hospitals, Leicester · NCT04959734 · Data updated 2026-11-12

This study looks at how COVID-19 affected emergency visits for bronchiolitis and RSV in young children to see what might happen as restrictions ease.

More Bronchiolitis trials

Quick facts

Study typeObservational
Ages0 Years to 2 Years
SexAll
Enrollment3000 (estimated)
SponsorUniversity Hospitals, Leicester
Academic / other
Locations1 site (Leicester)
StatusRecruiting
StartedJune 25, 2021
Main results expectedMarch 27, 2026
Study endsMarch 27, 2026
Registry record updatedJanuary 5, 2026
Trial IDNCT04959734 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are children under two years old presenting with symptoms of bronchiolitis or lower respiratory tract infections.

Probably not a fit

Patients with a history of recurrent wheeze responsive to bronchodilators may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates the effects of the COVID-19 pandemic on the incidence of bronchiolitis and respiratory syncytial virus (RSV) presentations in emergency departments. It focuses on children under two years of age who exhibit symptoms of bronchiolitis or lower respiratory tract infections. The study aims to understand how the absence of RSV during the pandemic may influence future cases as restrictions are lifted. By analyzing emergency department visits, the research seeks to provide insights into the potential resurgence of bronchiolitis in the post-pandemic period.

Why it matters

Potential benefit: If successful, this study could help healthcare providers better prepare for and manage bronchiolitis cases in children as COVID-19 restrictions are eased.

How similar studies have gone: While this study addresses a novel situation arising from the COVID-19 pandemic, similar studies in Australia have shown significant changes in RSV patterns, indicating potential relevance.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

i) Children under two years of age presenting to participating emergency departments with clinical features of:

* Bronchiolitis (cough, tachypnoea or chest recession, and wheeze or crackles on chest auscultation) or
* Lower Respiratory Tract infection or
* Afirst episode of acute viral wheeze.

Exclusion Criteria:

i) Children with previous episodes of wheeze responsive to bronchodilator (suggesting an underlying diagnosis of recurrent wheeze of early childhood)

Where it's running

  • University Hospitals of Leicester NHS Trust
    Leicester, United Kingdom
    Recruiting

Study contacts

  • Principal investigator: Damian Roland, BMBS PhD — University Hospitals, Leicester
  • Study coordinator: Damian Roland, BMBS PhD
  • Email: dr98@leicester.ac.uk
  • Phone: 07950891367

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.