- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02746172
Clinical Metrics for Assessing Cochlear Implant Recipient MAPs
Clinical Metrics for Assessing Audibility, Comfort and Performance of Cochlear Implant Recipient MAPs
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Optimising the clinical fitting of a cochlear implant to an individual listener is an important aspect of post-operative clinical care. The level of success experienced by any individual with a cochlear implant can be influenced, to a significant extent, by the quality of the clinical programming by the audiologist. During clinical programming the audiologist typically measures the amount of electrical charge required to elicit first hearing (the T-level) and to provide a loud but comfortable percept (the C-level) on each of the 22 electrodes. The amount of electrical stimulation required for a threshold and a comfortably loud percept varies across the electrodes of the array and also across individual users. Appropriately set lower and upper electrical stimulation levels are vital for ensuring that the listener is able to detect reasonably soft sounds whilst loud sounds are perceived as loud while remaining comfortable. Achieving this result across the relevant frequency range is a prime aim of programming.
There are a number of challenges in achieving optimal fitting of cochlear implant recipients in the clinical setting. First, there are varying skill levels and experience level of health professionals and allied workers involved in programming devices for cochlear implant recipients, often resulting in variability in the quality of the program (or MAP) provided to an individual. Second, there are varying levels of access to specialized equipment such as sound booths which are required for some types of audiometric measures to be reliably obtained. Finally, there are increasing demands on clinical capacity, with the specialized centres typically treating recipients having limited resources and ability to effectively manage the rapidly increasing population.
As a result, there is an increased need for effective, quality-controlled but streamlined management of implanted recipients.
The aim of the current study is to investigate the potential use of specific metrics in assessing the quality and optimizing an individual's cochlear implant fitting. Assessment of the sensitivity and specificity of specific metrics that are potential predictors of inaccurate T-levels and C-levels is important to determining best methods for streamlined high quality fitting, as well as automated adjustments for optimizing. One of the key objectives is to integrate a new technological advance in the form of in-situ audiometry, which removes the need for a sound booth to conduct audibility checks of the program. Other planned investigations relate to identifying the metrics which best identify maps that are not optimized, and to development and assessment of a range of techniques which may be able to be effectively applied in the clinical setting.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Victoria
-
Melbourne, Victoria, Australia, 3010
- The HEARing CRC
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adult (>18 years) cochlear implant recipients
- Implanted with the CI500, CI24RE and Nucleus 24 Series and CI422 cochlear implants.
- User of commercially available Freedom, CP810 or CP900 series sound processor
- User of the ACE strategy
- At least 3 months experience with the cochlear implant
- Fluent speaker in the language used to assess speech perception performance
- Willingness to participate in and to comply with all requirements of the protocol
Exclusion Criteria:
- Additional handicaps that would prevent participation in evaluations
- Unrealistic expectations on the part of the subject, regarding the possible benefits, risks and limitations that are inherent to the procedure and investigational device
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Cochlear Implant Recipients
cochlear implant recipients
|
|
No Intervention: Normal Hearing Volunteers
Normal hearing volunteers
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Sensitivity of percentage words/ phonemes correct, in detecting MAPs with inaccurate T and C levels in cochlear implant MAPs.
Time Frame: Testing over 12 weeks
|
Testing over 12 weeks
|
Sensitivity of speech reception threshold for numbers and sentences in noise, in detecting MAPs with inaccurate T and C levels in cochlear implant MAPs.
Time Frame: Testing over 12 weeks
|
Testing over 12 weeks
|
Sensitivity of aided hearing thresholds, in detecting MAPs with inaccurate T and C levels in cochlear implant MAPs.
Time Frame: Testing over 12 weeks
|
Testing over 12 weeks
|
Sensitivity of loudness ratings for narrow band noise presented at different frequencies and levels, in detecting MAPs with inaccurate T and C levels in cochlear implant MAPs.
Time Frame: Testing over 12 weeks
|
Testing over 12 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Test-retest reliability of in-situ aided audiometry
Time Frame: Testing over 6 weeks
|
This will be compared to the test-retest reliability of free-field aided audiometry which is within a margin of 10 dB HL.
|
Testing over 6 weeks
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CRC5628
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Hearing Loss
-
University of California, San FranciscoPatient-Centered Outcomes Research InstituteRecruitingHearing Loss | Hearing Loss, Sensorineural | Hearing Loss, Bilateral | Hearing Loss, Conductive | Hearing Loss, Noise-Induced | Hearing Loss, Unilateral | Hearing Loss, Mixed | Hearing Disorders in ChildrenUnited States
-
Oticon MedicalRecruitingEar Diseases | Hearing Loss, Conductive | Hearing Loss Mixed | Hearing Disability | Conductive Hearing Loss | Conductive Hearing Loss, Bilateral | Conductive Hearing Loss, UnilateralUnited Kingdom
-
MED-EL Elektromedizinische Geräte GesmbHCompletedHearing Loss | Hearing Loss, Sensorineural | Hearing Loss, Bilateral | Hearing Loss, Conductive | Hearing Loss, Unilateral | Hearing Loss, MixedAustria, Germany, United Kingdom
-
Oticon MedicalNot yet recruitingSensorineural Hearing Loss, Bilateral | Sensorineural Hearing Loss, Severe | Sensorineural Hearing Loss, Profound
-
Manchester University NHS Foundation TrustUniversity of ManchesterCompletedCochlear Hearing Loss | Sensorineural Hearing Loss, BilateralUnited Kingdom
-
Oticon MedicalCompletedConductive Hearing Loss | Conductive and Sensori-neural Hearing Loss in the Same Ear | Unilateral, Profound Sensori-neural Hearing LossUnited States
-
Frequency TherapeuticsCompletedHearing Loss, Sensorineural | Presbycusis | Noise Induced Hearing Loss | Sudden Hearing LossUnited States
-
Frequency TherapeuticsCompletedHearing Loss, Sensorineural | Noise Induced Hearing Loss | Sudden Hearing LossUnited States
-
Otologic Pharmaceutics, Inc.CompletedHearing Loss | Sensorineural Hearing Loss | Noise-Induced Hearing LossUnited States
-
Otologics LLCUnknownMixed Conductive and Sensorineural Hearing Loss, Bilateral
Clinical Trials on Cochlear implant with in-situ audiometry
-
Assistance Publique - Hôpitaux de ParisRecruitingCochlear Implants | Profound Hearing LossFrance
-
Dr. Daniel LeeUniversity of Wisconsin, MadisonTerminatedTotal Unilateral Deafness | Unilateral Partial DeafnessUnited States
-
University of North Carolina, Chapel HillMed-El CorporationCompletedHearing Loss, UnilateralUnited States
-
CochlearCompletedHearing LossUnited States
-
Università degli Studi di SassariDr. Dario Melodia; Dr. Milena Pisano; Prof. Silvio Mario Meloni; Prof. Edoardo... and other collaboratorsNot yet recruitingDental Implant | Dental Implant-Abutment DesignItaly
-
University of Southern DenmarkRecruitingHearing Loss, CochlearDenmark
-
Istituto Clinico HumanitasRecruiting
-
hearX GroupCompletedHearing LossSouth Africa
-
Beijing Sanbo Brain HospitalRecruitingPulmonary Complication | Neurosurgery | Diaphragm IssuesChina
-
Vanderbilt University Medical CenterNational Institute on Deafness and Other Communication Disorders (NIDCD)RecruitingHearing Loss | Cochlear ImplantUnited States