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Trial registered on ANZCTR
Registration number
ACTRN12614001106628
Ethics application status
Approved
Date submitted
21/09/2014
Date registered
17/10/2014
Date last updated
30/06/2021
Date data sharing statement initially provided
30/06/2021
Type of registration
Retrospectively registered
Titles & IDs
Public title
Gastric emptying after ingestion of clear fluids and nutritional liquid
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Scientific title
Assessing the duration of gastric emptying by ultrasound after ingesting clear fluid and nutritional liquid in healthy volunteers.
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Secondary ID [1]
285377
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None
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Universal Trial Number (UTN)
U1111-1162-0122
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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:
Aspiration pneumonia
293108
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Condition category
Condition code
Oral and Gastrointestinal
293381
293381
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0
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Normal oral and gastrointestinal development and function
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Respiratory
293417
293417
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0
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Other respiratory disorders / diseases
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Infection
293418
293418
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0
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Other infectious diseases
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Twenty volunteers will fast at least for 6 hours for food and for 2 hours for clear liquid prior to this study. Gastric ultrasound is done to determine the baseline gastric residual volume (GRV). The volunteers are then randomised into two groups, one receiving 250mls of nutritional liquid (Up and Go, which contains protein 8.3g, total fat 3.8g, saturated fat 0.5g, carbohydorate 30.3g, sugars 19.0g, sodium 163mg, dietary fibre 3.8g, monounsaturated 1.5g, polyunsaturated 1.8g, potassium 538mg, folic acid 100mcg, viatminA 128mcg, Vitamin B1 0.28mg, Vitamin B2 0.28mg, Vitamin B3 2.5mg, Vitamin B6 0.40mg, Vitamin B12, Vitamin C 10.0mg, calcium 400mg, energy 198cal) and the other 250mls of clear fluid (water). Gastric ultrasound is done immediately post ingestion then every 10 minutes for the 1st 30 mins then every hour until the gastric volume returns to baseline.
After each volunteer's gastric volume has returned to baseline, he/she will then crossover to the other group and the process is repeated.
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Intervention code [1]
290290
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Prevention
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Comparator / control treatment
Drinking water
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Control group
Active
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Outcomes
Primary outcome [1]
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Primary outcome 1: The duration required for gastric emptying after ingestion of fluid with the same caloric composition(Up&Go) as a standard meal and clear fluid(water) of equal volume, which will be assessed by gastric ultrasound.
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Assessment method [1]
293209
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Timepoint [1]
293209
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Immediately post ingestion then every 10 minutes for the 1st 30 mins then every hour until the gastric volume returns to baseline.
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Primary outcome [2]
293210
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Primary outcome 2: Whether ingesting water prior to ingesting Up&Go influences the speed of gastric emptying or not which will be assessed by gastric ultrasound only when water is ingested first. The order of treatments is randomised.
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Assessment method [2]
293210
0
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Timepoint [2]
293210
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Immediately post ingestion then every 10 minutes until the gastric volume returns to baseline.
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Secondary outcome [1]
310599
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Correlation of scanning technique between two operators. The technique will be assessed by the results of the calculated cross sectional area of stomachs.
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Assessment method [1]
310599
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Timepoint [1]
310599
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When the study is completed.
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Eligibility
Key inclusion criteria
Healthy volunteers
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Previous gastro-oesophageal surgery or abnormality of the gastrointestinal tract
Recent Pregnancy (within 3 months)
Age less than 18
Unable to give informed consent themselves
Hiatus Hernia
History of gastroesophageal reflux
Cognitive impairement/ mental disability
Those unable to lie still
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Study design
Purpose of the study
Prevention
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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)
Allocation is concealed with sealed opaque envelopes.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation using a "Research Randomizer".
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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
Prospective
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Phase
Not Applicable
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Type of endpoint/s
Safety
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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
18/09/2014
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Actual
18/09/2014
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Date of last participant enrolment
Anticipated
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Actual
20/12/2014
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Date of last data collection
Anticipated
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Actual
20/12/2014
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Sample size
Target
20
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Accrual to date
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Final
20
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Recruitment in Australia
Recruitment state(s)
WA
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Recruitment hospital [1]
3006
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Royal Perth Hospital - Perth
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Recruitment postcode(s) [1]
8718
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6000 - Perth
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Funding & Sponsors
Funding source category [1]
289987
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Hospital
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Name [1]
289987
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Department of Anaesthesia and Pain Medicine at Royal Perth Hospital
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Address [1]
289987
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197 Wellington Street, Perth, WA 6000
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Country [1]
289987
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Australia
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Primary sponsor type
Hospital
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Name
Department of Anaesthesia and Pain Medicine at Royal Perth Hospital
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Address
197 Wellington Street, Perth, WA 6000
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Country
Australia
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Secondary sponsor category [1]
288672
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Hospital
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Name [1]
288672
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Department of Radiology and Imaging Service at Royal Perth Hospital
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Address [1]
288672
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197 Wellington Street, Perth, WA 6000
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Country [1]
288672
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
291695
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Royal Perth Hospital Ethics Committee
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Ethics committee address [1]
291695
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197 Wellington Street, Perth, WA 6000
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Ethics committee country [1]
291695
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Australia
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Date submitted for ethics approval [1]
291695
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09/12/2013
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Approval date [1]
291695
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31/07/2014
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Ethics approval number [1]
291695
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REG13-175
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Summary
Brief summary
Aspiration pneumonia or pneumonitis is a fatal complication under general anaesthesia. Current fasting guidelines before general anaetshesia recommend 2 hours for clear fluid and 6 hours for light meal. However the guidelines do not account for the fact that some fasted surgical patients may still not have empty stomachs at that time of their surgery. The technique of gastric ultrasound to determine the types of gastric contents and the volume has been well described and standardised. The hypothesis of this study is gastric volume will return to baseline more rapidly after ingestion of clear fluid as compared to a fluid equivalent of a standard meal.
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Trial website
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Trial related presentations / publications
None
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Public notes
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Contacts
Principal investigator
Name
51586
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Dr Yayoi Ohashi
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Address
51586
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Royal Perth Hospital
Department of anaesthesia and pain medicine
197 Wellington Street, Perth, WA 6000
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Country
51586
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Australia
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Phone
51586
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+61892241036
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Fax
51586
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Email
51586
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[email protected]
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Contact person for public queries
Name
51587
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Yayoi Ohashi
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Address
51587
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Royal Perth Hospital
197 Wellington Street, Perth, WA 6000
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Country
51587
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Australia
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Phone
51587
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+61892241036
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Fax
51587
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Email
51587
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[email protected]
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Contact person for scientific queries
Name
51588
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Tomas Corcoran
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Address
51588
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Royal Perth Hospital
Department of anaesthesia and pain medicine
197 Wellington Street, Perth, WA 6000
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Country
51588
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Australia
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Phone
51588
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+61892241036
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Fax
51588
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Email
51588
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
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No/undecided IPD sharing reason/comment
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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
No additional documents have been identified.
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