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Trial registered on ANZCTR
Registration number
ACTRN12616000281493
Ethics application status
Approved
Date submitted
29/02/2016
Date registered
3/03/2016
Date last updated
25/10/2021
Date data sharing statement initially provided
25/10/2021
Date results provided
25/10/2021
Type of registration
Prospectively registered
Titles & IDs
Public title
The use of simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) to monitor the effects of ketamine and midazolam on brain activity
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Scientific title
The use of simultaneous EEG and fMRI to monitor the effects of ketamine and midazolam on brain activity in healthy adult males
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Secondary ID [1]
288646
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None
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Universal Trial Number (UTN)
U1111-1177-3828
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Trial acronym
EFKAM
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Healthy volunteers: Anaesthetic sedation
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Condition category
Condition code
Anaesthesiology
298001
298001
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0
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Anaesthetics
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Neurological
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0
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Studies of the normal brain and nervous system
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Ketamine IV. – bolus dose 0.25mg/kg then infusion at up to 0.25 mg/kg/hr (up to 1hr)
Midazolam IV – bolus dose 0.3mg/kg then infusion at up to 0.03 mg/kg/hr (up to 1hr)
Drug administration will be terminated at the completion of all EEG/fMRI scanning.
Infusion doses may be reduced at the discretion of the attending clinician if excessive sedation occurs.
A 3 day minimum washout between sessions will be employed.
All doses will be administered by study staff with doses logged in the trial master file
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Intervention code [1]
294061
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Treatment: Drugs
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Comparator / control treatment
Cannula inserted no infusion
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Control group
Placebo
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Outcomes
Primary outcome [1]
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Power spectral density of the EEG
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Assessment method [1]
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Timepoint [1]
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0-10 minutes post administration
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Secondary outcome [1]
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Functional connectivity measured with functional magnetic resonance imaging (fMRI)
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Assessment method [1]
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Timepoint [1]
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0-10 minutes post administration
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Eligibility
Key inclusion criteria
*Participant is willing and able to give informed consent for participation in the study
*In the Investigators’ opinion, is able and willing to comply with all study requirements
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Minimum age
18
Years
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Maximum age
45
Years
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Sex
Males
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
*Cardiovascular conditions including abnormal heart rate and blood pressure checked at screening.
*Participants who have participated in another research study involving an investigational product in the past 12 weeks.
*History of psychosis or personality disorder.
*Any unstable medical or neurologic condition.
*Substance abuse or dependence in previous 6 months.
*Any history of abuse of ketamine or benzodiazepenes.
*Contraindication to the use of ketamine/midazolam according to manufacturer guidelines.
*Body-weight <50kg or >120kg.
*BMI <18.5 or > 30
* Failure of the Health Questionnaire section of the “Anaesthesia assessment patient questionnaire”.
*Any other condition judged by the treating clinician as likely to impact on the ability of the participant to complete the study.
*Regular use of any medication deemed to be contraindicating as judged by the attending study physicians (e.g. benzodiazepenes / sedatives / sleeping agents / NMDA antagonists).
*Inability to speak or read English.
*Contraindications for MRI scanning
*Needle phobia
*History of claustrophobia
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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)
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Masking / blinding
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
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Type of endpoint/s
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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
28/03/2016
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Actual
24/03/2016
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Date of last participant enrolment
Anticipated
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Actual
30/08/2016
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Date of last data collection
Anticipated
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Actual
15/12/2016
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Sample size
Target
30
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Accrual to date
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Final
30
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Recruitment outside Australia
Country [1]
7630
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New Zealand
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State/province [1]
7630
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Funding & Sponsors
Funding source category [1]
293005
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Commercial sector/Industry
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Name [1]
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F Hoffmann La Roche
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Address [1]
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Grenzacherstrasse 124
Basel 4070
Switzerland
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Country [1]
293005
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Switzerland
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Primary sponsor type
University
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Name
The University of Auckland
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Address
Private Bag 92019
Auckland 1142
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Country
New Zealand
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
291783
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Central HDEC
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Ethics committee address [1]
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Ministry of Health Freyberg Building 20 Aitken Street PO Box 5013 Wellington 6011
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Ethics committee country [1]
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New Zealand
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Date submitted for ethics approval [1]
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19/02/2016
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Approval date [1]
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08/03/2016
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Ethics approval number [1]
294514
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Summary
Brief summary
EEG and fMRI are two of the principal techniques currently used to measure human brain function. However, EEG and fMRI measure different aspects of brain activity and it is unclear how the measures relate to each other. Both these techniques have the potential to provide important information in understanding how central nervous system medicines alter brain function. However, the results of previous drug studies where these two techniques are recorded separately are difficult to reconcile. While technically challenging it is now possible to simultaneously record EEG/fMRI. Recording simultaneous EEG/fMRI in the context of drug studies may help to resolve issues raised by previous studies. In this project we propose to record simultaneous EEG/fMRI in healthy volunteer participants while they are given two commonly used anaesthetic drugs, midazolam and ketamine. Our study aims to reconcile previous results in the literature and provide a template example for how future drug imaging studies (involving patients and new medications) might be conducted.
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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
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Dr Suresh Muthukumaraswamy
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Address
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School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
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Country
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New Zealand
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Phone
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+64 9373 7599 ext:85398
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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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Suresh Muthukumaraswamy
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Address
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School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
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Country
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New Zealand
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Phone
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+64 9373 7599 ext:85398
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Suresh Muthukumaraswamy
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Address
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School of Pharmacy
The University of Auckland
Private Bag 92019
Auckland 1142
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Country
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New Zealand
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Phone
63980
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+64 9373 7599 ext:85398
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Fax
63980
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Email
63980
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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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