The Hilo Pilot -Trial to Assess Feasibility
HiLo-Pilot
Is the Use of Higher Versus Lower Oxygen Concentration Feasible in the Delivery Room: a Pilot Trial
1 other identifier
interventional
34
1 country
1
Brief Summary
Preterm birth, or birth before 37 weeks' gestation, is increasingly common, occurring in 8% of pregnancies in Canada. Preterm birth is associated with many health complications, particularly when the birth happens before 29 weeks' gestation. At this gestational age, the lungs are not fully developed and it is not uncommon for infants to have problems breathing at the time of birth. One complication that can arise is when an infant stops breathing and needs to be resuscitated. When preterm babies need to be resuscitated doctors must take special care because of the small infant size and the immaturity of the brain and lungs. Oxygen is used to resuscitate babies who need it, but unfortunately there is disagreement about the best oxygen concentration to use. Oxygen concentration is important because both too much and too little oxygen can cause brain injury. Our research aims to fill this knowledge gap by participating in an international clinical trial to compare the effects of resuscitating babies less than 29 weeks' gestational age with either a low oxygen concentration or a high oxygen concentration. The oxygen concentrations have been selected using the best available knowledge. During the first 2 months of the clinical trial we will treat all babies less than 29 weeks' gestation who need resuscitation with the oxygen concentration we are randomly assigned. Then in the next 2 months, we will treat babies using the other oxygen concentration. After the trial, we will determine whether the babies resuscitated with low oxygen or those resuscitated with high oxygen have better survival and long-term health outcomes. Our research fills a critical knowledge gap in the care of extremely preterm babies and will impact their survival both here in Canada and internationally.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Nov 2018
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 11, 2018
CompletedFirst Posted
Study publicly available on registry
October 16, 2018
CompletedStudy Start
First participant enrolled
November 1, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2019
CompletedSeptember 5, 2021
September 1, 2021
4 months
October 11, 2018
September 3, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Feasibility of 30% or 60% oxygen at birth
Titration oxygen during respiratory support at birth
10 Minutes after birth
Study Arms (2)
30% group
ACTIVE COMPARATORInfants in the 30 % group will remain in 30% oxygen (O2) until 5 min of age. At 5 min of age, the clinical team will assess oxygen saturation (SpO2). If SpO2 is \<85%, O2 should be increased by 10-20% every 60 sec to achieve SpO2 of 85% or greater or a SpO2 of 90-95% at 10 min of age. If SpO2 are greater than 95% at or before 5 min of age, O2 should be decreased stepwise (every 60 sec) with an aim to maintain SpO2 of 85% or greater during 5-10 min of age or 90-95% at and beyond 10 min of age.
60% group
EXPERIMENTALInfants in the 60 % group will remain in 60% oxygen (O2) until 5 min of age. At 5 min of age, the clinical team will assess oxygen saturation (SpO2). If SpO2 is \<85%, O2 should be increased by 10-20% every 60 sec to achieve SpO2 of 85% or greater or a SpO2 of 90-95% at 10 min of age. If SpO2 are greater than 95% at or before 5 min of age, O2 should be decreased stepwise (every 60 sec) with an aim to maintain SpO2 of 85% or greater during 5-10 min of age or 90-95% at and beyond 10 min of age.
Interventions
Infants in the 30 % group will remain in 30% oxygen (O2) until 5 min of age. At 5 min of age, the clinical team will assess oxygen saturation (SpO2). If SpO2 is \<85%, O2 should be increased by 10-20% every 60 sec to achieve SpO2 of 85% or greater or a SpO2 of 90-95% at 10 min of age. If SpO2 are greater than 95% at or before 5 min of age, O2 should be decreased stepwise (every 60 sec) with an aim to maintain SpO2 of 85% or greater during 5-10 min of age or 90-95% at and beyond 10 min of age.
Infants in the 60 % group will remain in 60% oxygen (O2) until 5 min of age. At 5 min of age, the clinical team will assess oxygen saturation (SpO2). If SpO2 is \<85%, O2 should be increased by 10-20% every 60 sec to achieve SpO2 of 85% or greater or a SpO2 of 90-95% at 10 min of age. If SpO2 are greater than 95% at or before 5 min of age, O2 should be decreased stepwise (every 60 sec) with an aim to maintain SpO2 of 85% or greater during 5-10 min of age or 90-95% at and beyond 10 min of age.
Eligibility Criteria
You may qualify if:
- Infants born at 23 0/7 weeks to 28 6/7 weeks' gestational age who will receive full resuscitation and are without major congenital abnormalities
You may not qualify if:
- Infants who are outborn - initial resuscitation not performed at the study centre
- Infants who are not born within the eligible gestational age range- this trial is specific to preterm infants
- Infants who are born with a major congenital abnormality- congenital abnormalities may affect oxygenation or neurodevelopmental outcomes
- Infants who will not receive full resuscitation at birth- these infants will not receive resuscitation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Royal Alexandra Hospital
Edmonton, Alberta, T5H 3V9, Canada
Related Publications (1)
Law BHY, Asztalos E, Finer NN, Yaskina M, Vento M, Tarnow-Mordi W, Shah PS, Schmolzer GM. Higher versus Lower Oxygen Concentration during Respiratory Support in the Delivery Room in Extremely Preterm Infants: A Pilot Feasibility Study. Children (Basel). 2021 Oct 20;8(11):942. doi: 10.3390/children8110942.
PMID: 34828655DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Georg Schmolzer
University of Alberta
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- outcome assessed will be unaware of group allocation
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 11, 2018
First Posted
October 16, 2018
Study Start
November 1, 2018
Primary Completion
February 28, 2019
Study Completion
March 31, 2019
Last Updated
September 5, 2021
Record last verified: 2021-09