Direct-to-Consumer Hearing Aids and Listening Effort

Study Overview
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Brief Summary
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The aim of this proposed project is to understand whether direct to consumer (DTC) hearing aids programmed to individual hearing losses, can reduce listening effort for effective communication. If DTC aids can provide benefits beyond amplification, then they could be an affordable option to reduce barriers to care and improve hearing aid uptake in adults with hearing loss.

Detailed Description
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Hearing loss is the third most common chronic health condition in the United States, affecting individuals of any age. According to the National Institute on Deafness and Other Communication Disorders approximately 15% of all adults over age 18 in the United States have reported some trouble with their hearing, and one in eight people in the United States (about 30 million) aged 12 and older have hearing loss in both ears. However, about 28.8 million US adults who could benefit from hearing aids do not wear them. The current model of dispensing hearing aids could be a barrier to adoption by those who could benefit from amplification. Possible barriers from the current model include cost and ability to visit a hearing care professional required to purchase, adjust and repair a hearing aid. The Food and Drug Administration (FDA) issued a proposal in 2021 to make hearing care more accessible for Americans, known as the Over-the-Counter Hearing Aid Act, part of the FDA Reauthorization Act of 2017. Unlike conventional hearing aids, these devices will not require appointments to an audiologist for adjustments. Due to their affordability and easy access, DTC hearing aids have the potential to reach more individuals with hearing loss. Despite the many potential benefits that DTC hearing aids could offer, there is little research into their use to meet unique patient listening needs and the accuracy of self-guided hearing aid fittings. The investigators will evaluate the benefit of DTC hearing aids via questionnaires and a conversation task the participant engages in with a familiar speaker.

Official Title
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Investigation of Direct-to-consumer Hearing Aids on Conversation Efficiency and Listening Effort

Conditions
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Hearing Loss, Hearing Loss, Sensorineural, Hearing Loss, Bilateral

Intervention / Treatment
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* Device: DTC Hearing Aids


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Speak English as their primary language No vision impairment that would interfere with the ability to complete study tasks (i.e., legally blind, severe cataracts, or macular degeneration) Bilateral mild to moderate sensorineural or mixed hearing loss Pass a cognitive screener Minimum Grade 10 education Ability to attend all study visits Eligible communication partner who can attend first study visit. Exclusion Criteria: Clinically significant unstable or progressive medical conditions, or conditions which, in the opinion of the investigator(s) places the participant at unacceptable risk if he or she were to participate in the study History of unresolved communication difficulties following another neurological problem (i.e., stroke or brain tumor), neurodevelopmental disorder (i.e., Down's syndrome), or head/neck cancer Diagnosis of dementia or cognitive impairment Positive history of major psychiatric disorder (i.e., schizophrenia, significant untreated depression) Co-enrolled in other intervention studies targeting hearing, language, or communication strategies History or current fluctuating hearing loss Evidence of conductive hearing loss Current active hearing aid wearer (defined as wearing hearing aid(s) at least 4 hours a day for most days within the past year) Current active hearing aid wearer within 30-day trial period of purchased hearing aids from a licensed provider

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: DTC Hearing Aid<br> | Device: DTC Hearing Aids<br>* DTC hearing aid programmed to the individual participant.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Diapix Conversation Task | Participant and their communication partner discuss pictures with slight differences and attempt to locate all the differences by discussion alone. | Task is completed at first 1 day study visit, with and without hearing aids. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pupillometry and Recall Repeat Task (RRT) | Participant completes the RRT, a measure of memory and reported listening effort where the listener repeats pre-recorded sentences as they are presented and is then asked to recall them 15 seconds later. The listener also provides subjective listening effort ratings. While completing this task, the participant's pupil size will be measured. | Task will be completed at second 1 day study visit |