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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01043406
Registration number
NCT01043406
Ethics application status
Date submitted
4/01/2010
Date registered
6/01/2010
Date last updated
24/10/2012
Titles & IDs
Public title
Seizure Advisory System Feasibility Study
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Scientific title
Safety and Effectiveness of a Seizure Advisory System in Epilepsy: A Feasibility Study (Victoria)
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Secondary ID [1]
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NVC1001
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Universal Trial Number (UTN)
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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:
Epilepsy
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Condition category
Condition code
Neurological
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Epilepsy
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Neurological
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Other neurological disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Devices - Seizure Advisory System
Experimental: Single Arm, Device Implant -
Treatment: Devices: Seizure Advisory System
Implant of Seizure Advisory System followed by data collection for algorithm training and subsequent enabling of seizure advisory indicators.
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Intervention code [1]
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Treatment: Devices
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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The primary evaluation of safety will be an assessment of adverse events .
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Assessment method [1]
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Timepoint [1]
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Adverse events through the primary safety endpoint four months post-implant.
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Secondary outcome [1]
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Seizure advisory performance will be assessed for the study population.
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Assessment method [1]
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Timepoint [1]
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At the primary advisory performance endpoint at the conclusion of the Data Collection Phase (approximately 3 months post-implant) .
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Secondary outcome [2]
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Clinical effectiveness will be evaluated.
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Assessment method [2]
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Timepoint [2]
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At the primary clinical effectiveness endpoint 4 months following the commencement of the Advisory Phase (approximately 7 months post-implant)
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Eligibility
Key inclusion criteria
1. Subject has disabling partial seizures and/or secondarily generalized partial seizures. Disabling refers to seizures that are severe enough to cause injuries or to significantly impair areas of function such as employment, psychological or social wellbeing, or mobility.
2. Subject has failed treatment with a minimum of two AED's used in typical therapeutic dosages.
3. For three months prior to enrollment, subject's anti-epileptic medication dosages have been stable and subject has had at least two disabling seizures per month, on average, with a seizure-free interval not to exceed 45 days. Seizures must be separated by a minimum of eight hours not to be considered part of a cluster. A cluster, for the purpose of this criterion, shall be considered a single seizure.
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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?
No
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Key exclusion criteria
1. For three months prior to enrollment, subject's anti-epileptic medication dosages have not been stable, or subject has had more than 12 disabling seizures per month, on average, or there was a seizure-free interval longer than 45 days. Clinical seizures must be separated by a minimum of eight hours to not be considered part of a cluster. A cluster, for the purpose of this criterion, shall be considered a single seizure.
2. Subject is implanted with pacemaker, implantable cardiac defibrillator, cardiac management product, or a medical device that interferes with the SAS or with which the SAS interferes. This includes, but is not limited to, direct brain neurostimulators, spinal cord stimulators, vagus nerve stimulators (VNS), and cochlear implants. Patients with a vagus nerve stimulator implanted but turned off through the duration of the study may be enrolled, provided their clinical status has been stable for at least one month with VNS turned off.
3. Subject has been diagnosed with primary generalized seizures.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
NA
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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
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Stopped early
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/03/2010
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/10/2012
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Sample size
Target
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Accrual to date
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Final
15
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Royal Melbourne Hospital - Melbourne
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Recruitment hospital [2]
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St. Vincent's Hospital (Melbourne) - Melbourne
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Recruitment hospital [3]
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Austin Health - Melbourne
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Recruitment postcode(s) [1]
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3050 - Melbourne
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Recruitment postcode(s) [2]
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3065 - Melbourne
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Recruitment postcode(s) [3]
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3081 - Melbourne
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
NeuroVista Corporation
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this prospective, single-arm, unblinded, multicenter clinical study is to evaluate the safety and effectiveness of the NeuroVista Seizure Advisory System (SAS) in patients with medically refractory epilepsy. A total of 15 subjects will be implanted at up to three study sites.
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Trial website
https://clinicaltrials.gov/study/NCT01043406
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Trial related presentations / publications
Snyder DE, Echauz J, Grimes DB, Litt B. The statistics of a practical seizure warning system. J Neural Eng. 2008 Dec;5(4):392-401. doi: 10.1088/1741-2560/5/4/004. Epub 2008 Sep 30. Cook MJ, O'Brien TJ, Berkovic SF, Murphy M, Morokoff A, Fabinyi G, D'Souza W, Yerra R, Archer J, Litewka L, Hosking S, Lightfoot P, Ruedebusch V, Sheffield WD, Snyder D, Leyde K, Himes D. Prediction of seizure likelihood with a long-term, implanted seizure advisory system in patients with drug-resistant epilepsy: a first-in-man study. Lancet Neurol. 2013 Jun;12(6):563-71. doi: 10.1016/S1474-4422(13)70075-9. Epub 2013 May 2.
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Public notes
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Contacts
Principal investigator
Name
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Warren D Sheffield, VMD, PhD
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Address
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NeuroVista Corporation
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Country
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Phone
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Fax
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Email
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Contact person for public queries
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Address
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Contact person for scientific queries
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
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT01043406
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