Register a trial

Did you know?

The ANZCTR now automatically displays published trial results and simplifies the addition of trial documents such as unpublished protocols and statistical analysis plans.

These enhancements will offer a more comprehensive view of trials, regardless of whether their results are positive, negative, or inconclusive.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06578468




Registration number
NCT06578468
Ethics application status
Date submitted
21/08/2024
Date registered
29/08/2024

Titles & IDs
Public title
End-Tidal Oxygen for Intubation in the Emergency Department
Scientific title
Preoxygenation Using End-Tidal Oxygen for Rapid Sequence Intubation in the Emergency Department (The PREOXED Trial) - a Multicentre Stepped Wedge Cluster Randomised Control Trial
Secondary ID [1] 0 0
24-008
Universal Trial Number (UTN)
Trial acronym
PREOXED
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Critical Illness 0 0
Hypoxia 0 0
Respiratory Failure 0 0
Condition category
Condition code
Respiratory 0 0 0 0
Other respiratory disorders / diseases

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Devices - End-tidal oxygen monitor

No intervention: Control period - The control period includes a period whereby clinicians will not have access to ETO2 monitoring and routine RSI practices will be documented including all study variables. At all institutions, RSI is performed in a similar manner, utilising an airway checklist. There is no 'standard operating procedure' for RSI in any of the EDs and methods, therefore, vary depending on clinician preference and the condition of the patient, however, each site is a tertiary-level, university teaching hospital and therefore clinical practice is up to date and evidence-based. Standard preoxygenation methods in the Emergency department often consist of a bag-valve mask, with or without a PEEP valve, set at 15L/min, or the use of non-invasive ventilation or a non-rebreather mask, with or without a nasal cannula, set at 15 L/min or flush rate oxygen (\>40 L/min). US sites have access to high-flow (\>30L/min) oxygen. This is the only difference in the preoxygenation method.

Experimental: Study period - For all patients involved in the study, the only intervention will be the use of ETO2 to guide preoxygenation. All aspects of RSI will be at the discretion of the treating clinician including sedative/paralytic medications, positioning of the patient, preoxygenation method, intubation techniques and post-intubation sedation.

Clinicians will be encouraged to aim for the highest ETO2 result possible with a goal of \>85%. Clinicians will be able to view the ETO2 values and can decide on any changes to the preoxygenation techniques if deemed necessary. These techniques may include improved patient positioning, improved face mask seal, increased oxygen flow, length of preoxygenation time, or altering the preoxygenation device.


Treatment: Devices: End-tidal oxygen monitor
The only additional equipment required for this study is the Philips™ IntelliVue G7m Gas Analyser Module 866173. This provides a non-dispersive infrared measurement of respiratory gases and a paramagnetic measurement of oxygen. At Lincoln Medical Center, the gas analyser used will be a Philips G5 gas analyser connected to a Philips Intellivue MP 70. At the University of New Mexico Medical Center, the Masimo root monitor is used.

The gas analysers produce display waves for O2 and CO2, together with numerics for end-tidal values for O2 and CO2 and to our knowledge, there are no differences in values between the various devices used. The gas sampling occurs through a side-stream sampling tube at a rate of 200ml/min ±20 ml/min, which is either obtained from a nasal cannula in the spontaneously breathing patient or a sidestream line if connected to a BVM.
Intervention code [1] 0 0
Treatment: Devices
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Incidence of hypoxia
Timepoint [1] 0 0
The time when laryngoscope first enters the mouth to 2 minutes after the endotracheal tube [ETT] is confirmed on waveform capnography
Secondary outcome [1] 0 0
Lowest oxygen saturations
Timepoint [1] 0 0
The time when laryngoscope first enters the mouth to 2 minutes after the endotracheal tube [ETT] is confirmed on waveform capnography

Eligibility
Key inclusion criteria
1. The patient is located in the ED resuscitation bay of the participating centre.
2. The planned procedure is orotracheal intubation using a laryngoscope and RSI technique with preoxygenation for patients who are spontaneously breathing.
3. The patient is deemed to be at a high risk of hypoxia during RSI as per the treating ED clinician, as defined by:

* Any patient requiring any form of oxygen therapy before preoxygenation.
* Any patient with respiratory pathology based on clinical or radiological findings. Including, but not limited to:

* Pneumonia, pulmonary oedema, acute respiratory distress syndrome (ARDS), aspiration, pulmonary contusion from trauma, infective exacerbations of known lung disease (e.g. asthma, pulmonary fibrosis, emphysema) or pulmonary embolism (PE)
* Any patient with high oxygen consumption. Including, but not limited to:

* Sepsis, Diabetic ketoacidosis, alcohol or drug withdrawal, seizures, thyrotoxicosis
* Any underlying patient condition that may predispose to hypoxemia. Including, but not limited to:

* Obesity, pregnancy, underlying lung disease (e.g. asthma, pulmonary fibrosis, emphysema), severe injury- hypovolaemia/haemorrhage.
* or any other patient that the treating clinician has a high concern for hypoxemia during RSI.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Patient is known to be less than 18 years old.
2. The patient has a supraglottic device in-situ e.g iGel or LMA.
3. The patient is known to be pregnant.
4. The patient is known to be a prisoner.
5. The patient was intubated in the prehospital environment.
6. Immediate need for tracheal intubation precludes preoxygenation i.e. the patient is in cardiac arrest.

Study design
Purpose of the study
Diagnosis
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Crossover
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
5/08/2024
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
31/12/2025
Actual
Sample size
Target
1400
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,VIC
Recruitment hospital [1] 0 0
Westmead Hospital - Sydney
Recruitment hospital [2] 0 0
Royal Prince Alfred Hospital - Sydney
Recruitment hospital [3] 0 0
Liverpool Hospital - Sydney
Recruitment hospital [4] 0 0
Northern Beaches Hospital - Sydney
Recruitment hospital [5] 0 0
Royal North Shore Hospital - Sydney
Recruitment hospital [6] 0 0
The Alfred Hospital - Melbourne
Recruitment postcode(s) [1] 0 0
2000 - Sydney
Recruitment postcode(s) [2] 0 0
2050 - Sydney
Recruitment postcode(s) [3] 0 0
- Sydney
Recruitment postcode(s) [4] 0 0
- Melbourne
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Minnesota
Country [2] 0 0
United States of America
State/province [2] 0 0
New Mexico
Country [3] 0 0
United States of America
State/province [3] 0 0
New York

Funding & Sponsors
Primary sponsor type
Government body
Name
Sydney Local Health District
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Matthew Oliver, MBBS
Address 0 0
Sydney Local Health District
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Matthew Oliver, MBBS
Address 0 0
Country 0 0
Phone 0 0
+61410188680
Fax 0 0
Email 0 0
matthew.oliver@health.nsw.gov.au
Contact person for scientific queries

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
What data in particular will be shared?
Following publication, individual patient data will be made available for sharing to researchers with 1) a signed data access agreement, 2) research testing a hypothesis, 3) a protocol that has been approved by an institutional review board, and 4) a proposal that has received approval from the principal investigator.

Supporting document/s available: Study protocol, Statistical analysis plan (SAP)
When will data be available (start and end dates)?
No end date
Available to whom?
a signed data access agreement research testing a hypothesis a protocol that has been approved by an institutional review board a proposal that has received approval from the principal investigator
Available for what types of analyses?
How or where can data be obtained?


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

No documents have been uploaded by study researchers.


Results not provided in https://clinicaltrials.gov/study/NCT06578468