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Hearing LossNCT04953390

Evaluating Benefits of Hearing Aid Microphone Directionality Technologies

A study testing Phonak Audeo hearing aid and Phonak hearing aid with multiple directionality settings, adjustable via a mobile app in people with Hearing Loss, run by Sonova AG at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will evaluate the impact of hearing aid microphone directionality technologies and settings on speech understanding in noise for experienced hearing aid users. It will also evaluate the participant's spatial awareness of sounds using these different hearing aid microphone directionality technologies. Read more about this study

Who is it for?
Ages 18 to 90 years
Conditions the study is for
Hearing Loss
What is being tested?
Phonak Audeo hearing aid and Phonak hearing aid with multiple directionality settings, adjustable via a mobile app
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
19 participants
Where
1 siteUnited States
Study dates
3 May 2021to 2 Jul 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18 years or older
  • experienced hearing aid users
  • moderate to moderate severe sensorineural symmetrical hearing loss defined as a difference of less than 10 dB between ears
  • must be able to use app and smart phone

Who cannot join

  • asymmetrical hearing losses
  • unable or unwilling to use app and smart phone

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sonova

    Aurora, Illinois, 60505

Other trials in United States

About this study

Official title: Evaluating Benefits of Hearing Aid Microphone Directionality Technologies on Spatial Awareness and Speech Intelligibility

This study will evaluate the impact of hearing aid microphone directionality technologies and settings on speech understanding in noise for experienced hearing aid users. It will also evaluate the participant's spatial awareness of sounds using these different hearing aid microphone directionality technologies.

Conditions
Hearing Loss
Being tested
Phonak Audeo hearing aid, Phonak hearing aid with multiple directionality settings, adjustable via a mobile app
Medical subject headings
Hearing Loss

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Phonak Audeo hearing aidDevice

    Commercially available hearing aid with three different microphone settings: DIR1, DIR2, and DIR3

  • Phonak hearing aid with multiple directionality settings, adjustable via a mobile appDevice

    Commercially available hearing aid with multiple directionality settings which will be adjustable by user via a mobile app during a home trial period.

Study groups in NCT04953390
Study groupRoleWhat they receive
ExperimentalExperimentalAll study participants wearing study devices and evaluating three different microphone settings in simulated noise environments in lab, and using study devices during home trial period.
Receives: Device: Phonak Audeo hearing aid; Device: Phonak hearing aid with multiple directionality settings, adjustable via a mobile app

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Subjective Description of DIR1, DIR2, and DIR3 in Controlled Soft Noise Environment

    Participant describes an acoustically noisy environment in which recorded speech is played from a speaker directly in front of the participant and recorded multi-talker babble is played from multiple speakers around the participant. The participant uses a slider tool to choose if scene sounds acoustically wide (hearing all noise and speech), or acoustically narrow (hearing more of the speech than the noise). The range of the slider is 0-100, with 0 indicating the sound scene is "wide" and 100 indicating the sound scene is "narrow". The slider moves in 5 point increments. This is a purely subjective description and there is no better or worse outcome.

    Measured: Third appointment (day 28 of study)

  2. Subjective Description of DIR1, DIR2, and DIR3 in Controlled Loud Noise Environment

    Participant describes an acoustically noisy environment in which recorded speech is played from a speaker directly in front of the participant and recorded multi-talker babble is played from multiple speakers around the participant. The participant uses a slider tool to choose if scene sounds acoustically wide (hearing all noise and speech), or acoustically narrow (hearing more of the speech than the noise). The range of the slider is 0-100, with 0 indicating the sound scene is "wide" and 100 indicating the sound scene is "narrow". The slider moves in 5 point increments. This is a purely subjective description and there is no better or worse outcome.

    Measured: Third appointment (day 28 of study)

  3. Subjective Preference DIR1, DIR2, and DIR3 in Controlled Soft Noise Environments

    Using a sliding scale, the participant chooses their preference for listening to the sound scene, however this time, 0 indicates "not preferred" and 100 indicates "most preferred". The slider moves in 5 point increments. This is purely subjective and there is no better or worse answer.

    Measured: Third appointment (day 28 of study)

  4. Subjective Preference DIR1, DIR2, and DIR3 in Controlled Loud Noise Environments

    Using a sliding scale, the participant chooses their preference for listening to the sound scene, however this time, 0 indicates "not preferred" and 100 indicates "most preferred". The slider moves in 5 point increments.

    Measured: Third appointment (day 28 of study)

Secondary outcomes (3)
  1. Speech Reception Threshold

    Objective measure of speech reception thresholds with all three microphone settings (DIR1,DIR2,DIR3). This is calculated as the Signal to Noise Ratio at which participant can correctly repeat 50% of the words. A negative number (i.e. -10) indicates that the participant correctly repeated 50% of the words when the speech signal was softer or lower than the noise level. For example, an SNR score of -10 means that the the participant correctly repeated 50% of the words when the speech signal was 10 dB softer than the noise level. In this case, the noise level was appropriate to the microphone setting, i.e., DIR1 was tested in softer noise and DIR2 and DIR3 were tested in loud noise.

    Measured: 2nd appointment (Day 14 of study)

  2. Observations and Ratings of Satisfaction of Microphone Directionality in Real Life

    Participants made adjustments of microphone directionality via an app, in real world listening situations. When participants adjusted the microphone directionality in real-time, they were also prompted via ecological momentary assessment to rate how satisfied they were with the adjustment. Participants chose one of three satisfaction ratings: no, slight, or clear. "Clear" satisfaction would be the best rating, indicating high satisfaction, "no" would be the worst rating, indicating no satisfaction, and "slight" would indicate somewhat satisfied.

    Measured: 4 weeks

  3. Subjective Ratings of Transition Speed From One Directional Microphone Setting to Another Directional Setting

    Participants listen to different samples of transition speed from one mic setting to another in an A/B comparison and rate which sample is more noticeable, i.e. A is more noticeable than B, A is less noticeable than B, or A and B are the same. No statistical analysis was done for this outcome measure. Frequency distribution was completed to record the number of responses in which participants rated a 0 second transition time more noticeable than a 2s, 4s, and 8s transition time.

    Measured: Third appointment (day 28 of study)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Jul 2021
  2. Study start3 May 2021
  3. Primary completion2 Jul 2021
  4. Study completion2 Jul 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
A single group of participants will be evaluating different directional microphone settings on commercially available hearing aids
Masking
None (open label)
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04953390
Sponsor's protocol ID
SRF-369
Status last verified
Jul 2021
First submitted
9 Jun 2021
Last updated
9 Nov 2022
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Phonak Audeo hearing aid and Phonak hearing aid with multiple directionality settings, adjustable via a mobile app in people with Hearing Loss, run by Sonova AG at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Nov 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Nov 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Subjective Description of DIR1, DIR2, and DIR3 in Controlled Soft Noise Environment (time frame: Third appointment (day 28 of study)). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Nov 2022.

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