CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 19 enrolled
Drug / intervention
Hearing Aid without NR enabled +3 moredevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04578457
NCT04578457N/ACompleted
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Assessment of Novel Sound Changing Principles in Hearing Instruments to Determine Their Application - 2020_09

Sonova AG·interventional·Posted Oct 8, 2020·Updated Oct 5, 2021

In Brief

A clinical study evaluating Hearing Aid without NR enabled, Hearing Aid with NR(1), and 2 other interventions for Hearing Loss. Completed, enrolled 19 participants across 1 site.

Detailed Summary

Participants will perform two different listening tasks: (1) listening to, and repeating back, sentence lists presented in noise, and (2) Subjective rating of effort \& performance following each condition. During this study, continuous, non-invasive physiological measurements (skin conductance, changes in pupil dilation) will be recorded from participants. Using this paradigm we will be assessing the effect of different hearing aid processing algorithms on listening effort. The study takes the form of a one factor (algorithm), within-subjects design. Each participant performs the Speech perception task with each algorithm (reference, noise reduction I, noise reduction II, noise reduction III), at two individualized signal-to-noise ratios (SRT90 and SRT50). Additionally subjective performance ratings in real-life will be collected.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsHearing Loss
CountriesSwitzerland
Collaborators--

Timeline

N/ACompletedFinished
202120222023202420252026
First PostedOct 8, 2020
Enrollment StartOct 23, 2020
Primary CompletionMar 2, 2021
Study CompletionApr 22, 2021
TodayJul 2, 2026
Enrollment to primary: 4 monthsPosted 5.7 years ago

Interventions

Hearing Aid without NR enableddevice

Each participant will be fitted with noise reduction disabled. Disabled means that no sound processing algorithm that removes noise from the speech signal is active.

Hearing Aid with NR(1)device

Each participant will be fitted with the noise reduction program on the same hearing aid. The principle of the noise reduction algorithm is to remove noise from a speech signal with the aim of improving the speech intelligibility and comfort.

Hearing Aid with NR(2)device

Each participant will be fitted with a second noise reduction program on the same hearing aid. The parameterization of this NR algorithm differs from that in NR(1).

Hearing Aid with NR(3)device

Each participant will be fitted with a third noise reduction program on the same hearing aid. The parameterization of this NR algorithm differs from that in NR(1) and NR(2).