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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02879539
Registration number
NCT02879539
Ethics application status
Date submitted
21/08/2016
Date registered
25/08/2016
Titles & IDs
Public title
Cochlear Implant Low Power Strategy
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Scientific title
Clinical Assessment of a Low Power Strategy for Cochlear Implant Recipients
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Secondary ID [1]
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CRC5607
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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:
Hearing Loss
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Condition category
Condition code
Ear
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Deafness
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Experimental: MP3000-ACE strategy - MP3000 sound coding strategy or ACE strategy with lower stimulation rate
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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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Word recognition scores in quiet
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Assessment method [1]
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Word recognition scores in quiet for i) MP3000 strategy compared to default ACE strategy and ii) lower rate stimulation for ACE strategy
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Timepoint [1]
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Testing over 18 weeks
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Primary outcome [2]
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Sentence recognition scores in quiet
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Assessment method [2]
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Sentence recognition scores in quiet for i) MP3000 strategy compared to ACE strategy and ii) lower rate stimulation for ACE strategy
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Timepoint [2]
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Testing over 18 weeks
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Secondary outcome [1]
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Fundamental frequency (F0) discrimination
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Assessment method [1]
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F0 discrimination for MP3000 strategy compared to the ACE baseline
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Timepoint [1]
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Testing over 18 weeks
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Secondary outcome [2]
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Speech intelligibility and helpfulness subjective ratings
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Assessment method [2]
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For MP3000 strategy compared to the default ACE baseline
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Timepoint [2]
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Testing over 18 weeks
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Secondary outcome [3]
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Sentence in noise scores
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Assessment method [3]
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Comparison of MP3000 program with Spatial NR and NR3 enabled versus disabled.
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Timepoint [3]
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Testing over 18 weeks
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Eligibility
Key inclusion criteria
1. Adult (>18 years) cochlear implant recipients
2. Implanted with the CI500, CI24RE and Nucleus 24 Series and CI422 cochlear implants.
3. User of commercially available Freedom, CP810 or CP900 series sound processor
4. User of the ACE strategy or MP3000 strategy
5. At least 3 months experience with the cochlear implant
6. Native speaker in the language used to assess speech perception performance
7. Willingness to participate in and to comply with all requirements of the protocol
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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. Additional handicaps that would prevent participation in evaluations
2. Unrealistic expectations on the part of the subject, regarding the possible benefits, risks and limitations that are inherent to the procedure and investigational device
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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
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
NA
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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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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
31/03/2015
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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
27/01/2017
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Sample size
Target
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Accrual to date
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Final
32
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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The HEARing CRC - Melbourne
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Recruitment postcode(s) [1]
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3002 - Melbourne
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Funding & Sponsors
Primary sponsor type
Other
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Name
The Hearing Cooperative Research Centre
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Address
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Country
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Other collaborator category [1]
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Government body
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Name [1]
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Royal Victoria Eye and Ear Hospital
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Address [1]
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Country [1]
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Other collaborator category [2]
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Commercial sector/industry
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Name [2]
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Cochlear
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Address [2]
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Country [2]
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Ethics approval
Ethics application status
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Summary
Brief summary
Reducing power consumption in the cochlear implant is crucial to the development of future smaller sound processors. The commercial MP3000 sound coding strategy has been shown to be more efficient in power consumption to the standard ACE strategy. However in order to develop smaller sound processors, further battery life power savings are required. The aim of this study is to evaluate three experimental sets of MP3000 parameter sets, compared against the default ACE program. In the background for each of the four strategies, experimental noise reduction programs (SpatialNR and NR3) will also be in use. In an additional phase of the study, low stimulation rate ACE programs will also be evaluated against the default stimulation rate.
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Trial website
https://clinicaltrials.gov/study/NCT02879539
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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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Address
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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
Name
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Address
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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 scientific queries
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
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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/NCT02879539