Bilevel Positive Airway Pressure (BiPAP) for the Treatment of Moderate to Severe Acute Asthma Exacerbations

NCT ID: NCT02347462

Last Updated: 2017-09-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2015-04-30

Study Completion Date

2015-12-31

Brief Summary

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Bilevel Positive Airway Pressure (BiPAP) is increasingly being reported as an effective and safe method of respiratory support for children with severe asthma exacerbations unresponsive to standard therapies and with impending respiratory failure. Much of the evidence base supporting its use comes from retrospective observational studies, and there is currently a lack of data from randomized controlled trials to inform this practice.

The investigators hypothesize that the use of BiPAP in children with moderate to severe asthma exacerbations could reduce the length of hospital stay, need for invasive ventilation, and use of intravenous bronchodilators. The investigators aim to test this hypothesis by randomizing children attending the Emergency Department with a moderate to severe clinical severity score refractory to inhaled bronchodilators to receive either BiPAP in addition to standard asthma care, or standard care alone.

Detailed Description

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Children aged 2 - 18 years presenting to the Emergency Department (ED) with a moderate or severe asthma exacerbation (Pediatric Respiratory Assessment Measure (PRAM) of \> 3) who fail to improve clinically with standard ED management with inhaled salbutamol and ipratropium will be randomized to receive either standard asthma management according to our local severe asthma guideline or management with BiPAP in addition to standard care. Both groups will receive a comparable dose of systemic steroid and hourly salbutamol inhalers with subsequent weaning according to PRAM score. Patients randomized to receive BiPAP will be admitted to the Pediatric Intensive Care Unit (PICU) and those randomized to the control group will be admitted to the medical ward. Both groups will be monitored with 3-hourly PRAM scoring through the duration of their admission.

Conditions

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Asthma Status Asthmaticus

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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BiPAP plus standard care

Bilevel Positive Airway Pressure (BiPAP) plus standard care according to the hospital's severe asthma protocol

Group Type EXPERIMENTAL

Bilevel Positive Airway Pressure (BiPAP) (Trilogy BiPAP, Philips Respironics)

Intervention Type DEVICE

Children in the intervention group will receive BiPAP (Trilogy, Philips Respironics; spontaneous trigger mode) via a nasal or full face mask. End expiratory positive airway pressure (EPAP) will be set at 5cm H20. Inspiratory positive airway pressure (IPAP) will be titrated to achieve a tidal volume of 6 - 9 ml/kg. These settings will remain unchanged throughout the study period.

Standard care

Intervention Type OTHER

Standard care according to the hospital severe asthma protocol

Standard care alone

Standard care according to the hospital's severe asthma protocol

Group Type ACTIVE_COMPARATOR

Standard care

Intervention Type OTHER

Standard care according to the hospital severe asthma protocol

Interventions

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Bilevel Positive Airway Pressure (BiPAP) (Trilogy BiPAP, Philips Respironics)

Children in the intervention group will receive BiPAP (Trilogy, Philips Respironics; spontaneous trigger mode) via a nasal or full face mask. End expiratory positive airway pressure (EPAP) will be set at 5cm H20. Inspiratory positive airway pressure (IPAP) will be titrated to achieve a tidal volume of 6 - 9 ml/kg. These settings will remain unchanged throughout the study period.

Intervention Type DEVICE

Standard care

Standard care according to the hospital severe asthma protocol

Intervention Type OTHER

Other Intervention Names

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Trilogy BiPAP, Philips Respironics

Eligibility Criteria

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Inclusion Criteria

* 2-18 years old
* Admitted to BC Children's Hospital with a clinical diagnosis of an acute asthma exacerbation
* PRAM score of \>3 following initial treatment with three rounds of inhaled salbutamol and ipratropium bromide, and one dose of systemic steroid
* Parents willing and able to sign consent
* Children over the age of 6 willing to provide assent

Exclusion Criteria

* Clinical suspicion of co-existing bacterial pneumonia: focal crackles or bronchial breathing, and/or major chest x-ray findings
* Impending respiratory failure at presentation requiring direct PICU admission
* Receiving maintenance dose of oral steroid at time of hospital admission
* Any contraindication to BiPAP use including altered mental status, recent bowel surgery, intractable vomiting, or inability to protect airway
* Current tracheostomy, home ventilation (IPPV or NIPPV) or home oxygen requirement
* History of congenital heart disease or chronic respiratory disease (including bronchopulmonary dysplasia, cystic fibrosis, pulmonary hypertension)
* Craniofacial abnormality precluding the use of a tight fitting facial mask
Minimum Eligible Age

2 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of British Columbia

OTHER

Sponsor Role lead

Responsible Party

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Michael Seear

Principle Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Michael Seear, MD

Role: PRINCIPAL_INVESTIGATOR

University of British Columbia

Locations

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Children's and Women's Hospital

Vancouver, British Columbia, Canada

Site Status

Countries

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Canada

References

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Martinez FD, Vercelli D. Asthma. Lancet. 2013 Oct 19;382(9901):1360-72. doi: 10.1016/S0140-6736(13)61536-6. Epub 2013 Sep 13.

Reference Type BACKGROUND
PMID: 24041942 (View on PubMed)

Papiris SA, Manali ED, Kolilekas L, Triantafillidou C, Tsangaris I. Acute severe asthma: new approaches to assessment and treatment. Drugs. 2009;69(17):2363-91. doi: 10.2165/11319930-000000000-00000.

Reference Type BACKGROUND
PMID: 19911854 (View on PubMed)

Soroksky A, Klinowski E, Ilgyev E, Mizrachi A, Miller A, Ben Yehuda TM, Shpirer I, Leonov Y. Noninvasive positive pressure ventilation in acute asthmatic attack. Eur Respir Rev. 2010 Mar;19(115):39-45. doi: 10.1183/09059180.00006109.

Reference Type BACKGROUND
PMID: 20956164 (View on PubMed)

Meduri GU, Cook TR, Turner RE, Cohen M, Leeper KV. Noninvasive positive pressure ventilation in status asthmaticus. Chest. 1996 Sep;110(3):767-74. doi: 10.1378/chest.110.3.767.

Reference Type BACKGROUND
PMID: 8797425 (View on PubMed)

Thill PJ, McGuire JK, Baden HP, Green TP, Checchia PA. Noninvasive positive-pressure ventilation in children with lower airway obstruction. Pediatr Crit Care Med. 2004 Jul;5(4):337-42. doi: 10.1097/01.pcc.0000128670.36435.83.

Reference Type BACKGROUND
PMID: 15215002 (View on PubMed)

Basnet S, Mander G, Andoh J, Klaska H, Verhulst S, Koirala J. Safety, efficacy, and tolerability of early initiation of noninvasive positive pressure ventilation in pediatric patients admitted with status asthmaticus: a pilot study. Pediatr Crit Care Med. 2012 Jul;13(4):393-8. doi: 10.1097/PCC.0b013e318238b07a.

Reference Type BACKGROUND
PMID: 22067982 (View on PubMed)

Ducharme FM, Chalut D, Plotnick L, Savdie C, Kudirka D, Zhang X, Meng L, McGillivray D. The Pediatric Respiratory Assessment Measure: a valid clinical score for assessing acute asthma severity from toddlers to teenagers. J Pediatr. 2008 Apr;152(4):476-80, 480.e1. doi: 10.1016/j.jpeds.2007.08.034. Epub 2007 Oct 31.

Reference Type BACKGROUND
PMID: 18346499 (View on PubMed)

Other Identifiers

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H14-02397

Identifier Type: -

Identifier Source: org_study_id