MINImising Total Radiation EXposure in Preterm Infants
MINI T-Rex
Lung Ultrasound to Reduce the Number of Chest X-rays in Very Preterm Infants in the First 2 Weeks After Birth: A Randomised Controlled Trial
1 other identifier
interventional
180
1 country
1
Brief Summary
Being born too early (preterm birth) is the leading cause of death in children world-wide. In Australia, 97% of very preterm babies who are admitted to Neonatal Intensive Care Units need breathing support after birth to survive. Despite this significant global impact, neonatal clinicians have few tools available to guide breathing support. Currently, the only lung imaging tool that is routinely used in the Neonatal Intensive Care Unit is a chest X-ray. To reduce radiation exposure, chest X-rays are usually only performed one or two times a day. As chronic lung disease in babies who survive preterm birth is increasing, there is an urgent need to develop new ways to monitor the lungs of these fragile babies. Lung ultrasound is a form of imaging that is fast, gentle and radiation free. However, it has not been routinely adopted into caring for preterm babies in most countries. This is because there are no randomised controlled trials that have demonstrated the benefit and safety of using lung ultrasound as the first-line imaging tool in preterm babies. The investigators will conduct a randomised controlled trial to demonstrate that lung ultrasound is a quick, safe and accurate alternative to chest x-rays in preterm babies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Apr 2026
Typical duration for phase_2
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
April 9, 2025
CompletedFirst Posted
Study publicly available on registry
May 16, 2025
CompletedStudy Start
First participant enrolled
April 13, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2029
April 16, 2026
April 1, 2026
3.3 years
April 9, 2025
April 13, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The mean difference in number of x-rays and radiation exposure in the intervention group
The total number of chest X-rays performed in the study period
Until day 14 of life
Secondary Outcomes (5)
The mean difference of X-rays for entire admission (until discharge or death)
From date of randomization until the date of discharge or date of death from any cause, whichever came first, assessed up to 12 months
The mean difference of X-rays and radiation exposure by gestational age at birth
Until day 14 of life
Time to administering surfactant if clinically indicated
Until day 14 of life
Proportion of infants in the intervention arm who require CXR as first-line imaging due to lung ultrasound not being available
Until day 14 of life
Cost-effectiveness
Until day 14 of life
Other Outcomes (26)
Serious adverse event [1]
During or within 1 hour after each scheduled lung imaging assessment
Serious adverse event [2]
During or within 1 hour after each scheduled lung imaging assessment
Serious adverse event [3]
During or within 1 hour after each scheduled lung imaging assessment
- +23 more other outcomes
Study Arms (2)
Lung ultrasound group
EXPERIMENTALInfants randomised to this group will have lung ultrasound as their first
Standard care
ACTIVE COMPARATORInfants in the standard arm will receive chest X-ray as their first form of lung imaging. Lung ultrasound will not be permitted in this group.
Interventions
Infants in the intervention arm will receive lung ultrasound as their first line imaging. Clinicians will be permitted to order a chest x-ray if they require further information or if the lung ultrasound findings are inconclusive or not consistent with the clinical findings.
Infants in the standard group will receive chest X-ray as their first line imaging tool. Lung ultrasound will not be permitted in this group.
Eligibility Criteria
You may qualify if:
- All infants born \<32 weeks' gestation and admitted to the neonatal intensive care unit (NICU) who require lung imaging for respiratory indications will be considered eligible. Each infant must meet all the following criteria to be enrolled in this study:
- The infant is born from 22 to 31+6 weeks' gestation by best obstetric estimate and admitted to the NICU
- The infant is considered to require lung imaging for respiratory indications
- The infant has a parent/guardian who can provide informed consent.
You may not qualify if:
- The infant will only require CXR to be performed solely to confirm device position i.e. central line, endotracheal tube, gastric tubes
- The infant will only require CXR to be performed for specifically for non-respiratory indications i.e. assessment of cardiac silhouette
- The infant's Clinician has concern regarding clinical stability and tolerability of ultrasound scans
- The infant's skin integrity will not tolerate ultrasound gel
- Refusal of informed consent by their parent/guardian/legally acceptable representative
- The infant does not have a parent/guardian who can provide informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Joan Kirner Women's and Children's, Sunshine Hospital, Western Health
Melbourne, Victoria, 3021, Australia
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- Clinicians and participants will be unblinded to the study intervention. All outcome analysis will be performed blinded to the study intervention.
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Neonatologist
Study Record Dates
First Submitted
April 9, 2025
First Posted
May 16, 2025
Study Start
April 13, 2026
Primary Completion (Estimated)
August 1, 2029
Study Completion (Estimated)
December 1, 2029
Last Updated
April 16, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
De-identified individual patient data will be shared to research parties who have a sound research proposal and prior institutional review board approval.