Oral Prednisolone Dosing in Children Hospitalized With Asthma

Study Overview
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Brief Summary
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This study hopes to determine the appropriate oral steroid dose for treating children hospitalized with asthma exacerbations. Practice guidelines from different countries recommend a wide range of doses, and the doses used in actual practice vary widely. There is no data on what is the most appropriate dose of prednisone (or equivalent) in this situation. We will be looking at the dose recommended by the National Asthma Education and Prevention Program guidelines, which are published by the National Heart, Lung, and Blood Institute, as compared with a lower dose which is commonly used in practice. We hypothesize that the lower dose will be no worse than the higher dose as determined primarily by duration of hospitalization.

Detailed Description
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Practice guidelines for the management of asthma in children universally recommend systemic corticosteroids for the treatment of moderate to severe asthma exacerbations. However, these guidelines vary widely with respect to dose, frequency, method of delivery, and duration of therapy. In actual practice, there is also considerable variation among clinicians in terms of corticosteroid dosing in children hospitalized with asthma exacerbations. At the Children's Hospital of Philadelphia (CHOP) the current standard is to use an initial dose of 4.0 mg/kg/day (1.0 mg/kg every 6 hours to a maximum of 30 mg/dose) although many other pediatric hospitals use a 2.0 mg/kg/day dose (1.0 mg/kg every 12 hours to a maximum of 30 mg/dose). Systematic reviews of the literature have called for a clinical trial to evaluate the effect of different doses of corticosteroids in treating pediatric asthma patients hospitalized with exacerbations. This study will use a randomized, double-blind, controlled trial design in order to compare the efficacy of two different steroid doses in resolving acute exacerbations of asthma in hospitalized children. Children being hospitalized for asthma exacerbations from the CHOP emergency department (ED) will be eligible for study enrollment. Those that meet enrollment criteria will be randomized to receive prednisolone either in the higher dose (1.0 mg/kg (max 30 mg) every 6 hours), or the lower dose (1.0 mg/kg (max 30 mg) every 12 hours and placebo doses at 6 hour intervals in between) for the first 48 hours of hospitalization. Once 48 hours has past, all patients still hospitalized will receive 1.0 mg/kg (max 30 mg) every 12 hours for the duration of hospitalization. Approximately 156 patients with 78 in each arm of the study will be enrolled. This study should be completed in six to eight months. A non-inferiority study design will be used. The primary outcome will be duration of hospitalization, as determined by duration of time elapsed from first dose of prednisolone administered in the emergency department (ED) until the discharge dose of albuterol is administered. Secondary outcomes will include time elapsed from the time the admission order is written until the discharge order is written, time spent in each severity level of the asthma care pathway, degree and rate of improvement in forced expiratory volume in one second (FEV1), improvement in peak expiratory flows (PEF), improvement in asthma symptom scores, and rate of relapse after discharge.

Official Title
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Oral Prednisolone Dosing in Children Hospitalized With Asthma

Conditions
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Asthma

Intervention / Treatment
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* Drug: Prednisolone high dose
* Drug: Prednisolone lower dose


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Physician-diagnosed asthma with at least two previous visits to ED or primary care provider for asthma care Clinical decision by ED attending physician to admit to Acute Care Unit (ACU) after standardized initial ED treatment Exclusion Criteria: Clinical decision to begin continuous intravenous beta-agonist infusion Clinical decision to begin intravenous methylprednisolone therapy Clinical decision to admit to the Pediatric Intensive Care Unit Other concurrent disease such as sickle cell disease, cystic fibrosis, or cardiac disease Any contraindication to corticosteroid administration Any systemic corticosteroid treatment within two weeks of presenting to the ED Potential subjects will be excluded if informed consent is not obtained

Ages Eligible for Study
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Minimum Age: 2 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: 1<br>High dose prednisolone | Drug: Prednisolone high dose<br>* 4 mg/kg/day orally divided every 6 hours (maximum 30 mg per dose)<br>* Other names: asthma exacerbations;|
| Experimental: 2<br>Lower dose prednisolone alternating with placebo | Drug: Prednisolone lower dose<br>* 2 mg/kg/day orally divided q 12 (maximum 30mg/dose) alternating with placebo<br>* Other names: asthma exacerbations;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time Measured From the Administration of the Loading Dose of Prednisolone (2mg/kg up to Max 60mg) in the Emergency Department (ED) Until the Home Dose of Albuterol is Administered |  | Median time from loading dose to home dose of albuterol | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time Measured From the Writing of the Admission Order Until the Writing of the Discharge Order |  | Mean time from writing admit order until discharge order | 
| Time Spent in Each Severity Level of the Asthma Care Pathway |  | Time spent in each severity level of pathway | 
| The Rate and Degree of Change in Forced Expiratory Volume (FEV1) and Peak Expiratory Flow (PEF) Between Treatment Groups |  | Every 4 hours during hospitalization | 
| Differences in Clinical Asthma Symptom Scores During Hospitalization Between Treatment Groups |  | Every 4 hours during hospitalization | 
| Rate of Relapse Between Treatment Groups |  | 2 weeks after hospitalization | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Corticosteroids, Treatment, Pediatric