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Multicentre randomised controlled trial of minimally-invasive surfactant therapy in preterm infants 29-32 weeks gestation on continuous positive airway pressure

Multicentre randomised controlled trial in preterm infants 29-32 weeks gestation on continuous positive airway pressure of the effect of minimally-invasive surfactant therapy in comparison to standard care (continuation of CPAP) on the duration of respiratory support (all hours of intubation, nasal CPAP and high flow nasal cannula).

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12611000917932
Acronym
OPTIMIST-B
Enrollment
454
Registered
2011-08-26
Start date
2017-01-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Research question: Does administration of exogenous surfactant using a minimally-invasive technique improve outcome in preterm infants 29-32 weeks gestation treated with continuous positive airway pressure (CPAP)? A multicentre, randomised, masked, controlled trial will be conducted in preterm infants 29-32 weeks gestation, aged less than 12 hours, requiring CPAP because of respiratory distress, with an FiO2 of >=0.32 (CPAP pressure 5-6) or >=0.28 (CPAP pressure 7-8). Infants randomised to surfactant treatment will receive 100 mg/kg of poractant alfa (Curosurf) administered under direct laryngoscopy using a surfactant instillation catheter, followed by reinstitution of CPAP. Controls will continue on CPAP. The intervention will be masked from the clinical team. Care thereafter will be as per usual in both groups, other than the requirement to adhere to intubation criteria. The primary outcome will be duration of respiratory support (all hours of intubation, CPAP and high flow nasal cannula). Secondary outcomes will include Need for intubation and surfactant therapy; durations of intubation, CPAP, intubation and CPAP, HFNC, oxygen therapy, intensive care stay and hospitalisation; hospitalisation cost; incidence of death, major neonatal morbidities, pneumothorax and patent ductus arteriosus; and applicability and safety of the MIST procedure. The sample size will be 227/group, allowing detection of a 25% reduction in duration of respiratory support with 90% power. The trial will commence at Royal Hobart Hospital and Royal Women's Hospital during 2011, and will ultimately be conducted over 5 years in multiple centres nationally and overseas.

Interventions

Minimally invasive surfactant therapy - delivery of exogenous surfactant to the lung via brief catheterisation of the trachea with an instillation catheter in a preterm infant who is being supported with continuous positive airway pressure (CPAP) via nasal prongs or mask. The surfactant dose will be 100 mg/kg, administered over 15 - 30 seconds. Total duration of the procedure will be less than 5 minutes, followed by reinstitution of CPAP. Only a single dose will be given within the first 12 hour

Minimally invasive surfactant therapy - delivery of exogenous surfactant to the lung via brief catheterisation of the trachea with an instillation catheter in a preterm infant who is being supported with continuous positive airway pressure (CPAP) via nasal prongs or mask. The surfactant dose will be 100 mg/kg, administered over 15 - 30 seconds. Total duration of the procedure will be less than 5 minutes, followed by reinstitution of CPAP. Only a single dose will be given within the first 12 hours of life.

Sponsors

Menzies Institute of Medical Research, University of Tasmania
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
0 to 12 Hours
Healthy volunteers
No

Inclusion criteria

1. Gestational age 29-32 completed weeks 2. Requiring CPAP with signs of early respiratory distress. 3. CPAP pressure of 5-6 cm H2O and FiO2 >=0.32, or a CPAP pressure 7-8 cm H2O and FiO2 >=0.28. 4. Less than 12 hours of age. 5. Agreement of the Treating Physician in charge of the infant’s care. 6. Signed parental consent.

Exclusion criteria

1. Previously intubated, or in imminent need of intubation because of respiratory distress, apnoea or persistent acidosis. 2. Congenital anomaly or condition that might adversely affect breathing. 3. Identifiable alternative cause for respiratory distress (e.g. congenital pneumonia or pulmonary hypoplasia). 4. Lack of availability of an OPTIMIST treatment team.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026