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Trial registered on ANZCTR
Registration number
ACTRN12621000995875
Ethics application status
Approved
Date submitted
13/07/2021
Date registered
28/07/2021
Date last updated
30/06/2022
Date data sharing statement initially provided
28/07/2021
Date results provided
30/06/2022
Type of registration
Prospectively registered
Titles & IDs
Public title
A randomised controlled trial in cadavers investigating methods for intubation via a supraglottic airway device: comparison of fibre-optic-guided versus a modified retrograde technique performed by emergency physicians
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Scientific title
A randomised controlled trial in cadavers investigating methods for intubation via a supraglottic airway device: comparison of fibre-optic-guided versus a modified retrograde technique performed by emergency physicians
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Secondary ID [1]
304769
0
Nil known
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Universal Trial Number (UTN)
U1111-1267-9772
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Difficult Airway
322824
0
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Condition category
Condition code
Emergency medicine
320414
320414
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0
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Resuscitation
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Retrograde wire guided intubation technique via an i-gel supraglottic airway device (SGA), placed orally, by an emergency physician (EP) with preliminary training consisting of a 60 minute training session on kit familiarisation, practice on an airway mannequin, and then on a cadaver.
It is anticipated that the intubation technique will be completed within 3 minutes.
During the procedure the process will be supervised by an experienced emergency physician, familiar with the technique, who is able to offer advice on the procedure.
Regarding the 'wash out' period:
The physician will undertake both the intervention and comparator techniques on the cadavers as part of a randomised sequence of experiments. As such there will be no 'wash out'.
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Intervention code [1]
321151
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Treatment: Devices
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Comparator / control treatment
Standardised flexible airway scope guided intubation technique via an i-gel supraglottic airway device (SGA), placed orally by an emergency physician (EP) with preliminary training consisting of a 60 minute training session on scope familiarisation, practice on an airway mannequin, and then on a cadaver.
It is anticipated that the intubation technique will be completed within 3 minutes.
During the procedure the process will be supervised by an experienced emergency physician, familiar with the technique, who is able to offer advice on the procedure.
Regarding the 'wash out' period:
The physician will undertake both the intervention and comparator techniques on the cadavers as part of a randomised sequence of experiments. As such there will be no 'wash out'.
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Control group
Active
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Outcomes
Primary outcome [1]
328245
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Time to successful placement of cuffed endotracheal tube, from start of procedure, using a digital stopwatch.
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Assessment method [1]
328245
0
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Timepoint [1]
328245
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Successful endotracheal tube insertion into the trachea with balloon inflation.
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Secondary outcome [1]
398246
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Success or failure within three minutes of starting the procedure. A digital stopwatch will be used for this assessment.
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Assessment method [1]
398246
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Timepoint [1]
398246
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Three minutes from disconnecting the bag-valve-mask.
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Eligibility
Key inclusion criteria
Emergency Physician with preliminary training on use of the retrograde intubation kits.
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Minimum age
18
Years
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Maximum age
65
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
None
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Central randomisation by computer.
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Crossover
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
22/09/2021
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Actual
22/09/2021
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Date of last participant enrolment
Anticipated
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Actual
22/09/2021
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Date of last data collection
Anticipated
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Actual
22/09/2021
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Sample size
Target
4
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Accrual to date
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Final
4
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Recruitment in Australia
Recruitment state(s)
VIC
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Funding & Sponsors
Funding source category [1]
309139
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Hospital
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Name [1]
309139
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Emergency & Trauma Centre, The Alfred Hospital
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Address [1]
309139
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Emergency & Trauma Centre
The Alfred Hospital
55 Commercial Road
Melbourne
Victoria
3004
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Country [1]
309139
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Australia
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Primary sponsor type
Hospital
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Name
Emergency & Trauma Centre, The Alfred Hospital
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Address
Emergency & Trauma Centre
The Alfred Hospital
55 Commercial Road
Melbourne
Victoria
3004
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Country
Australia
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Secondary sponsor category [1]
310093
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None
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Name [1]
310093
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Address [1]
310093
0
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Country [1]
310093
0
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
309006
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The University of Melbourne Human Ethics Advisory Group
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Ethics committee address [1]
309006
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The University of Melbourne Human Ethics Advisory Group Office of Research Ethics and Integrity (OREI) The University of Melbourne 1/21 Bedford St North Melbourne Victoria AUSTRALIA 3010
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Ethics committee country [1]
309006
0
Australia
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Date submitted for ethics approval [1]
309006
0
30/09/2020
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Approval date [1]
309006
0
01/10/2020
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Ethics approval number [1]
309006
0
1648354
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Summary
Brief summary
In this study we have chosen to compare two options for intubation via a supraglottic airway device (SGA). We feel this is a scenario likely to be encountered by emergency physicians as these devices are commonly used in this setting as a ‘rescue device’, which can temporarily allow ventilation when traditional laryngoscopy has failed to secure a definitive airway. The first method is a novel retrograde technique where the guidewire is passed via the SGA; this second method is a fibre-optic guided approach, also via the SGA. Our theory is that intubation via an SGA will allow an emergency physician to reliably achieve a secure airway as these devices are designed to open directly at the laryngeal inlet and so may be an ideal conduit for either retrograde or fibre-optic intubation of the trachea. The null hypothesis is that there is no difference in the time taken to secure an endotracheal tube by these two methods.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
112630
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Dr Christopher Groombridge
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Address
112630
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The National Trauma Research Institute
Alfred Health
Commercial Road
Melbourne
Victoria
3004
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Country
112630
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Australia
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Phone
112630
0
+61 3 90763405
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Fax
112630
0
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Email
112630
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[email protected]
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Contact person for public queries
Name
112631
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Christopher Groombridge
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Address
112631
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The National Trauma Research Institute
Alfred Health
Commercial Road
Melbourne
Victoria
3004
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Country
112631
0
Australia
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Phone
112631
0
+61 3 90763405
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Fax
112631
0
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Email
112631
0
[email protected]
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Contact person for scientific queries
Name
112632
0
Christopher Groombridge
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Address
112632
0
The National Trauma Research Institute
Alfred Health
Commercial Road
Melbourne
Victoria
3004
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Country
112632
0
Australia
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Phone
112632
0
+61 3 90763405
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Fax
112632
0
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Email
112632
0
[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Analysed data will be submitted for publication.
Individual participant data will not be made available in order to maintain the privacy of the small sample of physicians from this cadaveric airway course.
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
Randomised controlled trial in cadavers investigating methods for intubation via a supraglottic airway device: Comparison of flexible airway scope guided versus a retrograde technique.
2022
https://dx.doi.org/10.1111/1742-6723.13908
N.B. These documents automatically identified may not have been verified by the study sponsor.
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