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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT03294681
Registration number
NCT03294681
Ethics application status
Date submitted
15/09/2017
Date registered
27/09/2017
Date last updated
29/06/2020
Titles & IDs
Public title
Collection and Characterization of Objective Measures to Explore the Specificity of Algorithms
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Scientific title
Trans-impedance Matrix
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Secondary ID [1]
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CLTD5676
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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
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Treatment: Devices - Objective measures with CSEP
Cochlear Implant Recipients -
Treatment: Devices: Objective measures with CSEP
Objective measures to be conducted with Custom SoundTM EP 5 software and the CP900 series sound processor in CI532 and CI512 Cochlear Implant recipients
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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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Specificity (%) of Transimpedance Measurement to Identify Electrode Fold-over
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Assessment method [1]
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Measured with Custom SoundTM EP 5. It took one minute to measure all electrodes in surgery.
Intraoperative transimpedance measures from 148 ears without fold-overs (as evidenced by radiographic imaging) were analysed to assess the specificity of the algorithm.
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Timepoint [1]
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at surgery, within one minute
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Eligibility
Key inclusion criteria
* Candidate for cochlear implantation with the CI532 or CI512 devices
* 18 years of age or older at the time of enrolment
* Normal cochlea anatomy, established via pre-operative Computer Tomography
* 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
* Prior cochlear implantation in the ear to be implanted
* Ossification or any other cochlear anomaly that might prevent complete insertion of the electrode array
* Abnormal cochlear anatomy on pre-operative Computer Tomography or Magnetic Resonance Imaging
* Additional handicaps that would prevent participation in evaluations
* Pregnant and breast feeding women, prisoners, or anyone in custody
* Unrealistic expectations on the part of the subject, regarding the possible benefits, risks and limitations that are inherent to the procedure
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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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
3/10/2017
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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
29/05/2019
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Sample size
Target
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Accrual to date
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Final
153
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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HEARing CRC - Carlton
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Recruitment postcode(s) [1]
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- Carlton
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Recruitment outside Australia
Country [1]
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Germany
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State/province [1]
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Erlangen
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Country [2]
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Germany
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State/province [2]
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Frankfurt am Main
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Country [3]
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Germany
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State/province [3]
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Kiel
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Country [4]
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Spain
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State/province [4]
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Las Palmas de Gran Canaria
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Country [5]
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Spain
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State/province [5]
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Pamplona
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Cochlear
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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 aim of this descriptive study is to collect and describe the characteristics of objective measures to explore the specificity of algorithms.
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Trial website
https://clinicaltrials.gov/study/NCT03294681
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Trial related presentations / publications
Hoppe U, Brademann G, Stover T, Ramos de Miguel A, Cowan R, Manrique M, Falcon-Gonzalez JC, Hey M, Baumann U, Huarte A, Liebscher T, Bennett C, English R, Neben N, Ramos Macias A. Evaluation of a Transimpedance Matrix Algorithm to Detect Anomalous Cochlear Implant Electrode Position. Audiol Neurootol. 2022;27(5):347-355. doi: 10.1159/000523784. Epub 2022 Mar 18.
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Public notes
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Contacts
Principal investigator
Name
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Bart Volckaerts, PhD
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Address
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Cochlear
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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
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
https://cdn.clinicaltrials.gov/large-docs/81/NCT03294681/Prot_000.pdf
Statistical analysis plan
https://cdn.clinicaltrials.gov/large-docs/81/NCT03294681/SAP_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT03294681
Download to PDF