The purpose of this study is to determine whether the addition of budesonide inhalation suspension (BIS) to the standard therapy of albuterol, ipratropium bromide, and systemic corticosteroids (SCS) for moderate to severe asthma flares in children reduces asthma severity more rapidly than standard therapy alone.
Context: Acute asthma is a leading cause of emergency department (ED) visits and hospitalizations. Although standard therapy for acute asthma includes systemic corticosteroids (SCS), these drugs take many hours to have an effect. Recent studies demonstrate that inhaled corticosteroids (ICS) may improve patients' asthma severity more rapidly than SCS and may decrease hospitalizations. Only a few small studies have evaluated ICS added to standard therapy for acute asthma in children. Objective: To determine if adding the nebulized steroid budesonide to standard therapy including SCS improves patients' asthma severity faster than standard therapy alone and leads to fewer hospitalizations. Study Design/Setting/Participants: A double-blind, randomized, controlled trial of budesonide inhalation suspension (BIS) versus placebo for children 2 to 18 years of age who present to a tertiary care, urban pediatric ED with a moderate to severe asthma flare. Intervention: Participants will receive standard therapy including SCS, albuterol, and ipratropium bromide and will be randomly assigned to also receive either nebulized BIS or saline. Study Measures: Differences in asthma scores, vital signs, and the need for hospitalization will be compared between treatment groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
179
Patients randomized to budesonide inhalation suspension (BIS) receive 2 nebulized albuterol sulfate (5mg/mL) doses (2mL =10mg for patients over 20kg, 1.5mL =7.5mg for patients 10-20kg) mixed with 8mL (2mg) of BIS(0.5mg/2mL). The albuterol sulfate and BIS mixture is delivered by a medium volume, high flow nebulizer (AirLife Mister FinityTM)with an oxygen flow rate of 8L/min via a tight-fitting face mask.
All patients are given 2mg/kg of systemic corticosteroids (max 60mg). Patients who can tolerate pills are given oral prednisone, those who cannot are given oral prednisolone, and those who cannot tolerate oral medications are given IV methylprednisolone.
Children's Hospital of Philadelphia Emergency Department
Philadelphia, Pennsylvania, United States
Median Change in Asthma Score 2 Hours After Intervention
The scale used is the Asthma Score published by Qureshi et al. The Asthma Score ranges from a low of 5 to maximum of 15 points. One to 3 points are given for each of 5 categories: age-based respiratory rate, oxygen saturation, wheeze, retractions, and dyspnea. For category detalails, please see the Qureshi reference. Scores of 5-7 are considered mild, 8-11 moderate, and 12-15 severe. Asthma Scores are recorded prior to any intervention and at 2 hours after budesonide inhalation suspension/albuterol intervention or saline placebo/albuterol comparator.
Time frame: Initial asthma score minus score 2 hours after budesonide/albuterol intervention or saline placebo/albuterol comparator
Mean Change in Asthma Score at 2 Hours
The scale used is the Asthma Score published by Qureshi et al. The Asthma Score ranges from a low of 5 to maximum of 15 points. One to 3 points are given for each of 5 categories: age-based respiratory rate, oxygen saturation, wheeze, retractions, and dyspnea. For category detalails, please see the Qureshi reference. Scores of 5-7 are considered mild, 8-11 moderate, and 12-15 severe. Asthma Scores are recorded prior to any intervention and at 2 hours after budesonide inhalation suspension/albuterol intervention or saline placebo/albuterol comparator.
Time frame: Initial asthma score minus score 2 hours after budesonide/albuterol intervention or saline placebo/albuterol comparator
Number of Patients Hospitalized
The number of patients requiring hospital admission 4 hours after budesonide/albuterol intervention or saline/albuterol comparator. All hospitalization decisions are made at the discretion of the attending physician.
Time frame: within 4 hours after the budesonide/albuterol intervention or saline/albuterol placebo
Change in Mean Heart Rate
Mean of heart rate in beats per minute before treatment minus mean of heart rate 2 hours after treatment with either budesonide/albuterol or saline/albuterol
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While guardians are approached for possible participation, patients are given a single nebulized dose of albuterol sulfate (5mg/mL) mixed with ipratropium bromide (500mcg/2.5mL). Patients who weigh 10-20kg receive 3.75mg of albuterol. Patients over 20kg receive 5mg of albuterol. All patients receive 500mcg of ipratropium bromide. Albuterol sulfate and ipratropium bromide are delivered by a medium volume, high flow nebulizer (AirLife Mister FinityTM)with an oxygen flow rate of 8L/min via a tight-fitting face mask.
500 mcg/2.5mL. All patients receive a final dose of ipratropium bromide after the intervention or placebo. The ipratropium bromide is delivered by a medium volume, high flow nebulizer (AirLife Mister FinityTM) with an oxygen flow rate of 8L/minute via a tight-fitting face mask.
Time frame: From the initial heart rate to heart rate 2 hours after intervention with budesonide/albuterol or saline/albuterol comparator
Mean Change in Respiratory Rate.
Mean respiratory rate in breaths per minute before treatment minus respiratory rate 2 hours after treatment with either budesonide/albuterol or saline/albuterol comparator.
Time frame: Initial rate, minus rate taken 2 hours after budesonide/albuterol intervention or saline/albuterol comparator
Oxygen Saturation.
Mean oxygen saturation (non-invasive pulse-oximetry, % hemoglobin saturation) 2 hours after treatment with either budesonide/albuterol or saline/albuterol comparator minus mean oxygen saturation before treatment.
Time frame: 2 hours after treatment with either budesonide/albuterol or saline/albuterol comparator
Number of Subjects Remaining in the Severe Asthma Category
Of the patients who presented in the severe asthma category (Asthma Severity score of 12-15), those who remained in this category 2 hours after the budesonide/albuterol intervention or saline/albuterol comparator.
Time frame: From the initial score to 2 hours after intervention with budesonide/albuterol or saline/albuterol comparator
Number of Subjects Moving From the Severe Asthma to Moderate Asthma Category
Of the patients who presented in the severe asthma category (Asthma Severity score of 12-15), those who moved to the moderate category (Asthma Severity score 8-11) 2 hours after the budesonide/albuterol intervention or saline/albuterol comparator.
Time frame: From the initial score to 2 hours after intervention with budesonide/albuterol or saline/albuterol comparator
Number of Subjects Moving From the Severe Asthma to Mild Asthma Category
Of the patients who presented in the severe asthma category (Asthma Severity score of 12-15), those who moved to the mild category (Asthma Severity score 5-7) 2 hours after the budesonide/albuterol intervention or saline/albuterol comparator.
Time frame: From the initial score to 2 hours after intervention with budesonide/albuterol or saline/albuterol comparator
Relapse / Readmission Numbers.
Participants admitted to the hospital within 5 days of the ED visit
Time frame: within 5 days of ED visit
Number of Participants With Adverse Events (Non-serious).
Time frame: within 30 days of the ED visit
Serious Adverse Events
Serious Adverse Events
Time frame: 0-5 days