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Trial registered on ANZCTR
Registration number
ACTRN12605000309684
Ethics application status
Approved
Date submitted
30/08/2005
Date registered
6/09/2005
Date last updated
26/11/2015
Type of registration
Retrospectively registered
Titles & IDs
Public title
Quantifying the effect of nitrous oxide on the depth of anaesthesia using theoretically based time series modelling
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Scientific title
The effect of nitrous oxide on a new measure of anaesthetic depth during sevoflurane anaesthesia
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Secondary ID [1]
288011
0
Nil known
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Universal Trial Number (UTN)
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Trial acronym
None
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Anaesthetic depth and EEG changes
397
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Condition category
Condition code
Anaesthesiology
469
469
0
0
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Anaesthetics
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Patient randomised to 0% (control), 33% or 66% nitrous oxide during induction of anaethesia with sevoflurane.
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Intervention code [1]
306
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Other interventions
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Comparator / control treatment
0% (control) nitrous oxide during induction of anaethesia with sevoflurane.
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Control group
Dose comparison
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Outcomes
Primary outcome [1]
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The effect of nitrous oxide on the EEG during induction of anaesthesia with sevoflurane
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Assessment method [1]
531
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Timepoint [1]
531
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The EEG is recorded continuously from the commencement of sevoflurane administration until loss of response to painful stimulation.
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Secondary outcome [1]
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None
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Assessment method [1]
1137
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Timepoint [1]
1137
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No secondary outcome - no timepoint for secondary outcome.
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Eligibility
Key inclusion criteria
Presenting for surgery, not at risk of gastrointestinal reflux during anaeshtesia, and without epilepsy or other EEG adnormalities.
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Minimum age
18
Years
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Maximum age
70
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
No exclusion criteria
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Study design
Purpose of the study
Diagnosis
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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)
Concealment in opaque envelopes
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Randomisation using computer generated random number list. No blocking or stratification
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Type of endpoint/s
Pharmacodynamics
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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
1/01/2005
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Actual
10/12/2004
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Date of last participant enrolment
Anticipated
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Actual
16/09/2005
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
68
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Accrual to date
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Final
69
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Recruitment in Australia
Recruitment state(s)
VIC
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Funding & Sponsors
Funding source category [1]
527
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Other Collaborative groups
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Name [1]
527
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ANZCA
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Address [1]
527
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630 St Kilda Rd, Melbourne, VIC, 3004
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Country [1]
527
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Australia
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Primary sponsor type
Government body
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Name
Melbourne Health
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Address
Royal Melbourne Hospital
Grattan St
Parkville Victoria 3050
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Country
Australia
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Secondary sponsor category [1]
428
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None
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Name [1]
428
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None
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Address [1]
428
0
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Country [1]
428
0
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Royal Melbourne Hospital
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Ethics committee address [1]
1528
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Parkville, VIC, 3050.
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Ethics committee country [1]
1528
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Australia
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Date submitted for ethics approval [1]
1528
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Approval date [1]
1528
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10/12/2004
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Ethics approval number [1]
1528
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2004.109
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Summary
Brief summary
The purpose of this study is to determine the effects of nitrous oxide on the EEG, by randomising patients to inhaled induction of anaesthesia using nitrous oxide 33% or 66% or 0% with sevoflurane
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Trial website
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Trial related presentations / publications
Liley DT, LESLIE K, Sinclair NC, Feckie M. Dissociating the effects of nitrous oxide on brain electrical activity using fixed order time series modeling. Computers in Biology and Medicine 2008: 38:1121-30
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Public notes
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Contacts
Principal investigator
Name
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Miss Kate Leslie
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Address
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Department of Anaesthesia and Pain Management
Royal Melbourne Hospital
Parkville VIC 3050
Australia
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Country
35946
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Australia
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Phone
35946
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61-418-374071
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Associate Professor Kate Leslie
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Address
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Department of Anaesthesia and Pain Management
Royal Melbourne Hospital
Parkville VIC 3050
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Country
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Australia
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Phone
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+61 3 93427000
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Fax
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+61 3 93428623
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Email
9495
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[email protected]
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Contact person for scientific queries
Name
423
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Associate Professor Kate Leslie
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Address
423
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Department of Anaesthesia and Pain Management
Royal Melbourne Hospital
Parkville VIC 3050
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Country
423
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Australia
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Phone
423
0
+61 3 93427000
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Fax
423
0
+61 3 93428623
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Email
423
0
[email protected]
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No information has been provided regarding IPD availability
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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