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Updated: Jan 8, 2026

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
Protocol for a non-inferiority randomized controlled trial of spontaneous breathing trial in children with and
José Colleti Junior1, Orlei Ribeiro de Araujo2, Karina Tavares Weber1
1Department of Pediatrics, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo - Ribeirão Preto (SP), Brazil.
Insights
This study compares continuous positive airway pressure (CPAP) to pressure support during spontaneous breathing trials in children needing mechanical ventilation. The goal is to determine if CPAP is non-inferior to pressure support for successful extubation.
Area of Science:
- Pediatric critical care medicine
- Respiratory physiology
- Clinical trial methodology
Background:
- Mechanical ventilation weaning is critical for pediatric intensive care unit (PICU) patients.
- Optimal spontaneous breathing trial (SBT) methods lack robust evidence.
- This study addresses the need for evidence-based SBT approaches in children.
Purpose of the Study:
- To compare the non-inferiority of continuous positive airway pressure (CPAP) versus pressure support (PS) during SBT in mechanically ventilated children.
- To evaluate successful liberation from mechanical ventilation as the primary outcome.
- To assess secondary outcomes including post-extubation respiratory support and PICU length of stay.
Main Methods:
- Multicenter, open-label, non-inferiority randomized controlled trial (NCT06593288).
- Inclusion: Children < 18 years, > 36 weeks corrected gestational age, requiring invasive mechanical ventilation for ≥ 24 hours and ready for weaning.
- Randomization to CPAP or PS during SBT; primary outcome: successful liberation ≥ 48 hours post-extubation.
Main Results:
- Study results are anticipated within one year of completion.
- The primary outcome is successful extubation and liberation from mechanical ventilation.
- Secondary outcomes focus on respiratory support needs and PICU length of stay.
Conclusions:
- Evidence guiding SBT in critically ill children is limited.
- This trial rigorously compares CPAP and pressure support during SBT.
- Findings will inform optimal weaning strategies for pediatric mechanical ventilation.
Objective:
To investigate whether continuous positive airway pressure during spontaneous breathing trial is non-inferior to pressure support by comparing both techniques in mechanically ventilated children.
Methods:
This is a multicenter, open-label, non-inferiority randomized controlled trial. The primary outcome is successful liberation from invasive mechanical ventilation for at least 48 hours post-extubation. Secondary outcomes include the need for post-extubation respiratory support and the length of stay in the pediatric intensive care unit. The sample size is estimated to be 170 participants. Non-inferiority will be assessed using the Farrington-Manning test. The trial registration number is NCT06593288 (clinicaltrials.gov). Infants older than 36 weeks corrected gestational age and < 18 years old admitted to the pediatric intensive care unit requiring invasive mechanical ventilation for at least 24 hours and ready to wean will be included. Patients with chronic pulmonary conditions, congenital heart disease, upper airway abnormalities, morbid obesity, and in palliative care will be excluded. Patients who have passed the extubation readiness test will be randomized to receive either continuous positive airway pressure or pressure support during a spontaneous breathing trial.
Results:
the results of the study should be ready and published within a year.
Conclusion:
The transition from mechanical ventilation to spontaneous breathing is a pivotal moment in the care of critically ill children. Yet, limited high-quality evidence informs the optimal approach to spontaneous breathing trials. Our protocol outlines a rigorously designed non-inferiority randomized controlled trial comparing spontaneous breathing trials conducted with and without pressure support.
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