Evidence map›Paper›PMID 37876994›Full record

ArticleCritical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine2023

Protocol and statistical analysis plan for the mega randomised registry trial comparing conservative vs. liberal oxygenation targets in adults with nonhypoxic ischaemic acute brain injuries and conditions in the intensive care unit (Mega-ROX Brains).

Paul J Young, Abdulrahman Al-Fares, Diptesh Aryal, Yaseen M Arabi, Muhammad Sheharyar Ashraf, Sean M Bagshaw, Mohd Basri Mat-Nor, Abigail Beane, Giovanni Borghi, Airton L de Oliveira Manoel and 20 more

Open access · hybridAbstract read
In one paragraph

Article in Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Mean arterial pressure targets in intensive care unit patients receiving noradrenaline: An international survey.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2025
    Article
  6. Article
  7. Article
  8. Protocol summary and statistical analysis plan for the low oxygen intervention for cardiac arrest injury limitation (LOGICAL) trial.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

30 authors at 13 institutions in 12 countries.

Paul J YoungIntensive Care Unit, Wellington Hospital, Wellington, New Zealand.
Abdulrahman Al-FaresDepartment of Anesthesia, Critical Care Medicine, and Pain Medicine, Al-Amiri Hospital, Ministry of Health, Kuwait.
Diptesh AryalNepal Intensive Care Research Foundation, Kathmandu, Nepal.
Yaseen M ArabiCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, And Intensive Care Department, King Abdulaziz Medical City, Ministry of National-Guard Health Affairs, Riyadh, Saudi Arabia.
Muhammad Sheharyar AshrafDepartment of Anesthesia and Critical Care Unit, Lady Reading Hospital, Peshawar, Pakistan.
Sean M BagshawDepartment of Critical Care Medicine, University of Alberta, And the Critical Care Strategic Clinical Network, Alberta Health Services, Edmonton, Alberta, Canada.
Mohd Basri Mat-NorDepartment of Anaesthesiology and Intensive Care, School of Medicine, International Islamic University of Malaysia, Kuantan, Pahang, Malaysia.
Abigail BeaneCentre for Inflammation Research, University of Edinburgh, Edinburgh, UK.
Giovanni BorghiDepartment of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy.
Airton L de Oliveira ManoelDepartment of Critical Care Medicine, Sultan Qaboos Comprehensive Cancer Care and Research Center, Muscat, Oman.
Layoni DullaweNational Intensive Care Surveillance - MORU (NICS-MORU), Colombo, Sri Lanka.
Fathima FazlaNational Intensive Care Surveillance - MORU (NICS-MORU), Colombo, Sri Lanka.
Tomoko FujiiAustralian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia.
Rashan HaniffaDepartment of Anaesthesiology and Intensive Care, School of Medicine, International Islamic University of Malaysia, Kuantan, Pahang, Malaysia.
Carol L HodgsonAustralian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia.
Anna HuntMedical Research Institute of New Zealand, Wellington, New Zealand.
Cassie LawrenceMedical Research Institute of New Zealand, Wellington, New Zealand.
Diane MackleMedical Research Institute of New Zealand, Wellington, New Zealand.
Kishore MangalDepartment of Critical Care Medicine, Fortis Escorts Hospital, Jaipur, India.
Alistair D NicholAustralian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia.
Shaanti OlatunjiMedical Research Institute of New Zealand, Wellington, New Zealand.
Aasiyah RashanCentre for Inflammation Research, University of Edinburgh, Edinburgh, UK.
Sumayyah RashanCentre for Inflammation Research, University of Edinburgh, Edinburgh, UK.
Bruno TomaziniHCor Research Institute, São Paulo, Brazil.
Jessica KaszaSchool of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
Mega-ROX management committee
Australian and New Zealand Intensive Care Society Clinical Trials Group
Brazilian Research in Intensive Care Network
Critical Care Asia and Africa Network
Irish Critical Care-Clinical Trials Group
Medical Research Institute of New Zealand · NZMonash University · AUCentre for Inflammation Research · GBInternational Islamic University Malaysia · MYAlberta Health · CAAlfred Health · AUFortis Escorts Hospital · INLady Reading Hospital · PKMinistry of Health · KWNational Guard Health Affairs · SAThe Jikei University Hospital · JPUniversity of Edinburgh · GBVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The effect of conservative vs. liberal oxygen therapy on 90-day in-hospital mortality in adults who have nonhypoxic ischaemic encephalopathy acute brain injuries and conditions and are receiving invasive mechanical ventilation in the intensive care unit (ICU) is uncertain. Objective: The objective of this study was to summarise the protocol and statistical analysis plan for the Mega-ROX Brains trial. Design setting and participants: Mega-ROX Brains is an international randomised clinical trial, which will be conducted within an overarching 40,000-participant, registry-embedded clinical trial comparing conservative and liberal ICU oxygen therapy regimens. We expect to enrol between 7500 and 9500 participants with nonhypoxic ischaemic encephalopathy acute brain injuries and conditions who are receiving unplanned invasive mechanical ventilation in the ICU. Main outcome measures: The primary outcome is in-hospital all-cause mortality up to 90 d from the date of randomisation. Secondary outcomes include duration of survival, duration of mechanical ventilation, ICU length of stay, hospital length of stay, and the proportion of participants discharged home. Results and conclusions: Mega-ROX Brains will compare the effect of conservative vs. liberal oxygen therapy regimens on 90-day in-hospital mortality in adults in the ICU with acute brain injuries and conditions. The protocol and planned analyses are reported here to mitigate analysis bias. Trial Registration: Australian and New Zealand Clinical Trials Registry (ACTRN 12620000391976).

Indexed as

Critical careHyperoxaemiaHypoxaemiaIntensive careOxygenOxygen therapyStrokeSubarachnoid haemorrhageTraumatic brain injury

Identifiers

PMID37876994
PMCPMC10581272
OpenAlexW4377121490

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.