Sci Simple

New Science Research Articles Everyday

# Health Sciences # Pediatrics

New Hope for Treating Bronchiolitis in Infants

Research investigates combination treatment for bronchiolitis to reduce hospitalizations.

Amy C. Plint, Anna Heath, Tremaine Rowe, Kristina I. Vogel, Natasha Wills-Ibarra, Sharon O’Brien, Meredith L. Borland, David W. Johnson, Joseph J. Zorc, Petros Pechlivanoglou, Suzanne Schuh, Medhawani Rao, Megan Bonisch, Simon S. Craig, Serge Gouin, Amit Kochar, Graham C. Thompson, Chris Lash, Andrew Dixon, Scott Sawyer, Gary Joubert, Ed Oakley, Martin Offringa, Terry P. Klassen, Stuart R. Dalziel

― 7 min read


Hope for Bronchiolitis Hope for Bronchiolitis Treatment better infant care. New study tests combined therapy for
Table of Contents

Bronchiolitis is a common respiratory illness that mostly affects Infants, especially those under one year old. It's often caused by a viral infection, with the respiratory syncytial virus (RSV) being the most notable culprit. The condition can lead to inflammation and swelling of the small airways in the lungs, which results in symptoms such as wheezing, coughing, and difficulty breathing.

Every year, bronchiolitis leads to a significant number of hospital admissions in North America. In the United States alone, around 100,000 infants are hospitalized annually due to this condition, costing healthcare systems a staggering $1.73 billion. In Canada, the figures are also concerning, with 35 out of every 1,000 infants hospitalized, which translates to over $23 million in healthcare expenses each year. Despite doctors doing their best to manage the illness and reduce hospital visits, the admission rates remain high every bronchiolitis season.

Understanding the Impact of Bronchiolitis

The high rates of hospitalization for bronchiolitis indicate the seriousness of the illness. Parents naturally worry when their little ones are unwell, and the need for such substantial healthcare resources highlights why effective treatments are urgently needed.

The burden of bronchiolitis does not just fall on the healthcare system; it also affects families, who may need to take time off work to care for their sick child. The emotional strain of seeing a child struggle to breathe is immense, adding to the already significant stress that comes with parenthood.

The Quest for Better Treatment

Over the years, researchers have been investigating the best ways to treat bronchiolitis and minimize hospital stays. Two large studies have provided essential insights into how medications can help. The first study, conducted in the United States, tested the use of oral Dexamethasone, a corticosteroid. Unfortunately, the study found that this treatment did not significantly impact the rates of hospitalization.

The second study, conducted in Canada, had a more promising discovery. While it also found that oral dexamethasone alone did not help, it revealed that using dexamethasone alongside nebulized Epinephrine led to a notable decrease in symptoms. In fact, this combination treatment reduced Hospitalizations by about one-third! This unexpected outcome stirred up quite a discussion, as not everyone agreed on the findings.

The Need for More Evidence

Despite the encouraging results from the Canadian study, many pediatric emergency doctors were hesitant to change their practices. Most preferred to see more research confirming the safety and effectiveness of the combined treatment before adopting it widely. After all, no one wants to take unnecessary risks when it comes to the health of infants.

Many physicians also expressed a preference for a shorter treatment duration. Similar to how they manage croup, they suggested that a brief course of dexamethasone could be just as beneficial. The Canadian study indicated that the benefits of the combination therapy showed up within a few days, which fueled this belief.

Currently, official treatment guidelines for bronchiolitis do not recommend using the combination of epinephrine and dexamethasone. Most healthcare providers still advocate for supportive care, such as hydration and oxygen, as the first line of defense.

Designing a New Study

Recognizing the heavy toll bronchiolitis takes on healthcare systems and families, researchers felt it was critical to conduct another trial. The goal was to determine whether the combination of inhaled epinephrine and a short course of dexamethasone could reduce hospital admissions compared to traditional supportive care.

Study Goals

The main focus of the new study is to check if infants receiving the combination treatment experience fewer hospitalizations due to bronchiolitis within a week compared to those receiving a placebo treatment.

How the Study Works

This study, known as BIPED, involves multiple centers and is structured to ensure proper testing of the proposed treatment. Here are some key details:

Study Design

BIPED is a Phase III trial, meaning it is in the later stages of testing before any potential approval for use. This study includes twelve centers and uses a randomized, controlled design. This means infants will be randomly assigned to either the treatment group or the placebo group, ensuring reliable results.

The primary goal is to track how many patients end up in the hospital due to bronchiolitis within seven days of enrolling in the study.

Locations

The study will recruit participants from several pediatric emergency departments across Canada, New Zealand, and Australia. These sites are well-equipped to handle large volumes of patients, allowing for diverse participation.

Who Can Join?

To be eligible, infants must be between 60 days and 12 months old and need to present with symptoms of bronchiolitis, such as wheezing and signs of an upper respiratory infection. However, if they show very mild symptoms or have pre-existing health conditions affecting their lungs, they won’t qualify.

Treatment Groups

Infants in the study will be assigned to one of two groups:

  1. Active Intervention Group: This group will receive a small dose of oral dexamethasone and inhaled epinephrine. The dexamethasone will be given in the emergency department, followed by two treatments of inhaled epinephrine—a common medication for respiratory issues.

  2. Control Group: This group will receive a placebo version of both the oral and inhaled medications. Essentially, they will get a sugar pill and saline instead of the actual drugs. This helps scientists compare the results fairly.

Why These Medications?

The combination of epinephrine and dexamethasone was chosen based on earlier studies that hinted at their positive effects when used together. The doses have been adjusted to ensure safety while still aiming for maximum effectiveness.

Monitoring the Outcomes

During the trial, several outcomes will be monitored to assess the effectiveness and safety of the treatments. Here’s what will be observed:

Primary Outcome

The main outcome measured will be whether infants are admitted to the hospital for bronchiolitis within seven days of starting treatment. The aim is to see if the combination treatment leads to fewer hospital visits compared to the placebo group.

Secondary Outcomes

In addition to hospital admissions, the researchers will track:

  • Admissions related to bronchiolitis at the time of the first emergency visit.
  • Any hospital admissions for other reasons within 21 days following the first visit.
  • Any follow-up healthcare visits within three weeks.
  • Healthcare costs associated with the illnesses.

Safety Measures

Patient safety is a top priority, and several safety outcomes will be monitored. Researchers will be on the lookout for any serious reactions to the medications, such as gastrointestinal bleeding or significant infections.

Analyzing the Data

Once the study concludes, the researchers will analyze the results to see if the combination treatment has a clear advantage over the placebo. This will involve complex statistical analysis to ensure the findings are reliable and valid.

Importance of the Study

This new investigation is essential for several reasons. Firstly, it seeks to fill gaps left by previous studies and confirm whether the combination treatment truly works. Secondly, by including diverse populations in three different countries, the findings will be more applicable to a broader audience.

Importantly, if the findings support the use of combined epinephrine and dexamethasone, it could lead to new guidelines for treating bronchiolitis. This change could improve the way parents, doctors, and healthcare systems handle this common but serious illness.

Conclusion

In summary, bronchiolitis remains a significant concern for infants and their families. The combination of epinephrine and dexamethasone offers hope, but more solid evidence is necessary to change treatment practices. The BIPED study aims to provide the clarity needed to guide clinicians in treating this challenging condition effectively.

Through rigorous testing, monitoring, and analysis, researchers are working to ensure that infants receive the best possible care while reducing the burden of bronchiolitis on families and healthcare systems. Future findings from the study could potentially reshape how we approach the treatment of bronchiolitis, hopefully leading to fewer hospitalizations and better health outcomes for our littlest patients.

So, let's cross our fingers that the results are as good as a baby's giggle!

Original Source

Title: A randomized controlled trial comparing epinephrine and dexamethasone to placebo in the treatment of infants with bronchiolitis: the Bronchiolitis in Infants Placebo versus Epinephrine and Dexamethasone (BIPED) study protocol.

Abstract: BackgroundBronchiolitis exerts a significant burden of illness on infants worldwide predominantly due to need for hospitalization. Currently only supportive care is advised by national guidelines for infants with bronchiolitis. There is evidence that treating infants with bronchiolitis with a combination of inhaled epinephrine and dexamethasone may reduce hospital admissions. Synergy between beta-agonists and corticosteroids is recognized in asthma management and basic science literature demonstrates that co-administration of these medications enhances each others effectiveness. ObjectiveTo determine if infants with bronchiolitis treated with inhaled epinephrine (delivered by metered dose inhaler with spacer or nebulizer) in the emergency department and a 2-day course of oral dexamethasone have fewer hospitalizations (due to bronchiolitis) over 7 days compared to infants treated with placebo. DesignThe BIPED study (Bronchiolitis in Infants Epinephrine versus Dexamethasone and Placebo) is a randomized, placebo-controlled, observer, investigator, clinician, and patient blinded superiority clinical trial being conducted in 12 emergency departments across three countries (Canada, New Zealand, and Australia). We will recruit 864 infants between 60 days and 12 months of age with bronchiolitis to receive either (1) two inhaled epinephrine treatments (3 mg via nebulizer or 625 mcg via metered dose inhaler with spacer) 30 minutes apart and a simultaneous dose of oral dexamethasone (0.6 mg/kg, maximum 10 mg) in the emergency department with the dexamethasone repeated at 24 hours or (2) inhaled placebo and oral placebo. The primary outcome is hospital admission for bronchiolitis within 7 days (168 hours) of enrolment. Secondary outcomes include hospital admission during enrolment, and all cause hospital admissions and healthcare provider visits within 21 days of enrolment. We will use a Bayesian approach for data analysis and inference. DiscussionGiven the healthcare burden of bronchiolitis, there is urgent need for a trial to confirm if combination therapy with epinephrine and dexamethasone is effective. Trial registrationClinicalTrials.gov: NCT03567473. Registered on 2018-06-13. Protocol versionCTO 1423, dated 20 January 2023 Sponsor-InvestigatorDr. Amy C Plint, Childrens Hospital of Eastern Ontario, Ottawa, Ontario, Canada Secondary SponsorChildrens Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada

Authors: Amy C. Plint, Anna Heath, Tremaine Rowe, Kristina I. Vogel, Natasha Wills-Ibarra, Sharon O’Brien, Meredith L. Borland, David W. Johnson, Joseph J. Zorc, Petros Pechlivanoglou, Suzanne Schuh, Medhawani Rao, Megan Bonisch, Simon S. Craig, Serge Gouin, Amit Kochar, Graham C. Thompson, Chris Lash, Andrew Dixon, Scott Sawyer, Gary Joubert, Ed Oakley, Martin Offringa, Terry P. Klassen, Stuart R. Dalziel

Last Update: 2024-12-08 00:00:00

Language: English

Source URL: https://www.medrxiv.org/content/10.1101/2024.12.05.24318262

Source PDF: https://www.medrxiv.org/content/10.1101/2024.12.05.24318262.full.pdf

Licence: https://creativecommons.org/licenses/by/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to medrxiv for use of its open access interoperability.

Similar Articles