Actively Recruiting

Phase 3
Age: 3Months - 24Months
All Genders
ID06946264

Characterization of Bronchodilator Response in Children With Bronchiolitis Using Phenotypic and Genotypic Features

Led by Nemours Children's Clinic · Updated on 2026-05-08

400

Participants Needed

1

Research Sites

52 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Bronchiolitis is a common cause of illness in young children, leading to significant healthcare use. This research aims to understand how children with bronchiolitis respond to bronchodilator treatments like albuterol, focusing on differences in clinical features and genetics. The study explores whether certain genetic variants and physical signs linked to allergic tendencies can predict how well a child with bronchiolitis responds to bronchodilators. Children aged 3 to 24 months diagnosed with bronchiolitis will be randomly assigned to receive either a nebulized dose of albuterol sulfate or a placebo solution (normal saline). This is a double-blind trial, meaning neither the participants nor the researchers know which treatment is given until after the study. The treatments will be prepared and stored securely in the emergency department. Participants will have their respiratory status assessed before and after the treatment. Researchers will collect samples including blood, urine, DNA from cheek swabs, and nasal swabs to study genetic and clinical responses. The main outcomes measured are changes in respiratory scores immediately after treatment and the relationship between genetic markers and bronchodilator response over about one year. The goal is to develop a prediction model combining clinical and genetic information to better identify children who may benefit from bronchodilator therapy.

CONDITIONS

Brief Title

Characterization of Bronchodilator Response in Children With Bronchiolitis Using Phenotypic and Genotypic Features

Who Can Participate

Age: 3Months - 24Months
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Children between 3 to 24 months of age
  • Clinical diagnosis of bronchiolitis by the treating provider(s), defined by the American Academy of Pediatrics as a clinical syndrome involving lower respiratory tract symptoms
  • Children who either have no history of prematurity or have a history of prematurity but without associated co-morbidities
  • Emergency department visit to seek care at Nemours Children's Health-Florida
Not Eligible

You will not qualify if you...

  • Patients previously enrolled in the PI's K12 study
  • Documented history of asthma or reactive airway disease
  • Co-morbidities affecting airway response such as chronic lung disease, bronchopulmonary dysplasia, bronchiectasis, congenital heart disease, immunodeficiency, or neurologic condition
  • Diagnosis of pneumonia by chest radiography
  • Use of inhaled, nebulized, or oral corticosteroids within 72 hours of emergency department evaluation
  • Use of inhaled, nebulized, or oral bronchodilators within 4 hours of emergency department arrival

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Treatment

Duration - Single administration during the emergency department visit

Participants receive a nebulized inhalation solution of either albuterol sulfate or sodium chloride as part of the randomized treatment.

1 treatment visit (in-person)

Follow-up

Duration - Up to 1 year after treatment

Participants are monitored for clinical response and genetic outcomes after the treatment.

Periodic follow-up visits as scheduled

Trial Site Locations

Total: 1 location

1

Nemours Children's Health

Orlando, Florida, United States, 32827

Actively Recruiting

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Research Team

A

Andrea Rivera-Sepulveda, MD, MSc

How is the study designed?

Study Type

INTERVENTIONAL

Masking

TRIPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Assessing the impact of national guidelines on the management of children hospitalized for acute bronchiolitis.

Russell J McCulloh, Sarah E Smitherman, Kristin L Koehn...

https://pubmed.ncbi.nlm.nih.gov/23868897

Trends in Hospital Costs and Levels of Services Provided for Children With Bronchiolitis Treated in Children's Hospitals.

Robert J Willer, Eric R Coon, Wade N Harrison...

https://pubmed.ncbi.nlm.nih.gov/34698848