- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03850678
Restoration of Spectral Resolution With Hearing-aid Amplification
Study Overview
Detailed Description
Adults with hearing loss are more vulnerable to interference from background noise than adults with normal hearing. Despite the fact that the ability to extract speech information imbedded in background noise requires decoding differences in level across frequency (spectral information), few studies have addressed the extent to which spectral information can be provided to listeners with hearing loss. This fundamental gap in our knowledge prevents society from effectively addressing the systemic effects of hearing loss on communication, income, and ability to socialize with others. This work is a new application of established methods of characterizing spectral resolution to that of the most common device for rehabilitation of hearing loss, hearing-aid amplification. Because hearing aids do not require premarket approval, FDA oversight is not applicable to this clinical trial.
The experiments will examine the degree to which access to spectral information can be restored to adults with hearing loss and the feasibility of utilizing this information to decrease interference from background noise. Aim 1 will delineate the impact of hearing-aid amplification on spectral decoding. Technology options that must be set by the clinician or hearing-aid manufacturer will be examined, including the frequency-specific gain, compressor speed, and number of compression channels. The proposed experiments will test the hypothesis that restoration of the lost dynamic range of hearing can support the encoding of spectral information. It is also hypothesized that the combination of technology options that best restore access to spectral information will differ across individuals and that these differences across individuals can be partially accounted for by an estimate of outer hair cell function. Aim 2 will determine the extent to which restoring access to spectral information supports speech recognition in background noise, under the guiding hypothesis that improving spectral resolution increases speech understanding. If it can be demonstrated that measures of spectral resolution with the provision of amplification are useful at delineating those who stand to benefit from different technology options, the knowledge gained could then be applied to the clinic to allow for clinicians to more successfully choose among different rehabilitation options.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Marc Brennan, PhD
- Phone Number: 4024723132
- Email: amplab@unl.edu
Study Locations
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Nebraska
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Lincoln, Nebraska, United States, 68583
- Barkley Memorial Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- normal tympanograms (peak admittance of ≥ 0.2 mmhos, -200 to 50); Hearing thresholds for normal hearing group less than or equal to 20 decibels in hearing level (dB HL) from .25 to 8 kHz. Pure-tone average (2, 4 & 6 kHz) hearing thresholds for participants with hearing loss of 30 - 65 dB HL.
Exclusion Criteria:
- cognitive impairment
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Factorial Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Hearing Aid
Group of participants with hearing loss.
Subjects will complete a questionnaire that asks relevant questions about their medical and developmental history and educational level.
Participants will be screened for a potential cognitive impairment using the Montreal Cognitive Assessment Basic (MOCA-B).
Working memory span will be assessed using the reading span test.
Each subject will undergo a routine audiological examination, including audiometric testing and tympanometry.
The ability of the subjects to detect different frequencies and to repeat speech presented at a variety of levels, while manipulating different hearing aid parameters and also without the provision of amplification, will be assessed.
|
Hearing Aid
|
No Intervention: Normal Hearing
Group of participants with normal hearing that serve as a reference group.
Subjects will complete a questionnaire that asks relevant questions about their medical and developmental history and educational level.
Participants will be screened for a potential cognitive impairment using the Montreal Cognitive Assessment Basic (MOCA-B).
Working memory span will be assessed using the reading span test.
Each subject will undergo a routine audiological examination, including audiometric testing and tympanometry.
The ability of the subjects to detect different frequencies and to repeat speech presented at a variety of levels will be assessed.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Spectral resolution
Time Frame: Each test is approximately 10 minutes and will be completed after each experimental manipulation
|
Measure of spectral resolution (Q10) obtained from the fast psychophysical tuning curve test
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Each test is approximately 10 minutes and will be completed after each experimental manipulation
|
Speech Recognition
Time Frame: Each test is approximately 10 minutes and will be completed after each experimental manipulation
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measure of percent correctly repeated words embedded in sentences and background noise
|
Each test is approximately 10 minutes and will be completed after each experimental manipulation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Working memory
Time Frame: Each test is approximately 30 minutes and will be completed once per subject
|
Measure of working memory (correctly repeated words and sentences from the reading span test)
|
Each test is approximately 30 minutes and will be completed once per subject
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Marc Brennan, PhD, University of Nebraska Lincoln
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 (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 18892
- R21DC017588 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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
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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
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Oticon MedicalRecruitingEar Diseases | Hearing Loss, Conductive | Hearing Loss Mixed | Hearing Disability | Conductive Hearing Loss | Conductive Hearing Loss, Bilateral | Conductive Hearing Loss, UnilateralUnited Kingdom
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MED-EL Elektromedizinische Geräte GesmbHCompletedHearing Loss | Hearing Loss, Sensorineural | Hearing Loss, Bilateral | Hearing Loss, Conductive | Hearing Loss, Unilateral | Hearing Loss, MixedAustria, Germany, United Kingdom
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Oticon MedicalNot yet recruitingSensorineural Hearing Loss, Bilateral | Sensorineural Hearing Loss, Severe | Sensorineural Hearing Loss, Profound
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Manchester University NHS Foundation TrustUniversity of ManchesterCompletedCochlear Hearing Loss | Sensorineural Hearing Loss, BilateralUnited Kingdom
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Oticon MedicalCompletedConductive Hearing Loss | Conductive and Sensori-neural Hearing Loss in the Same Ear | Unilateral, Profound Sensori-neural Hearing LossUnited States
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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
-
Frequency TherapeuticsCompletedHearing Loss, Sensorineural | Noise Induced Hearing Loss | Sudden Hearing LossUnited States
Clinical Trials on Hearing Aid
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Northwestern UniversityNational Institute on Deafness and Other Communication Disorders (NIDCD)Completed
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Sonova AGCompletedHearing Loss, Sensorineural | Hearing Loss, BilateralCanada
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Bernafon AGCompletedHearing LossSwitzerland
-
Sonova AGCompleted
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Sonova AGWestern UniversityRecruiting
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Sonova AGCompletedHearing Loss, Sensorineural | Hearing Loss, BilateralCanada
-
Sonova AGCompleted
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Sonova AGCompletedHearing Loss | Normal HearingSwitzerland