NCT04739436

Brief Summary

This study aims to evaluate the benefit of bilateral hearing aid use compared to a unilateral hearing aid. Patients with mild to moderate bilateral hearing loss who are considering the purchase of a commercially available hearing aid will be considered for participation. Eligible participants will be randomized to one of the following treatment arms: (1) a bilateral hearing aid fitting group, and (2) a unilateral hearing aid fitting group.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
278

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 26, 2021

Completed
9 days until next milestone

First Posted

Study publicly available on registry

February 4, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

April 26, 2021

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 12, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 20, 2024

Completed
7 months until next milestone

Results Posted

Study results publicly available

April 10, 2025

Completed
Last Updated

April 10, 2025

Status Verified

March 1, 2025

Enrollment Period

3.2 years

First QC Date

January 26, 2021

Results QC Date

March 21, 2025

Last Update Submit

March 21, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Hearing Aid Benefit as Measured by Abbreviated Profile of Hearing Aid Benefit (APHAB)

    The APHAB score ranges from 1 to 99. The change in APHAB score was calculated as the difference between scores at 3 months and baseline, so the range of possible values for the change score is -98 to 98. A lower APHAB score indicates a better benefit; a negative change score indicates greater benefit at 3 months than at baseline.

    Baseline, 3 months

Secondary Outcomes (12)

  • Hearing Aid Benefit, as Measured by the Measured by Glasgow Hearing Aid Benefit Profile (GHABP)

    3 months

  • Change in Hearing Aid Benefit as Measured by Bamford-Kowal-Bench Speech in Noise (BKB SIN) Test

    Baseline, 3 months

  • Change in Hearing Aid Benefit as Measured by the Abbreviated Word Auditory Recognition and Recall Measure (WARRM)

    Baseline, 3 months

  • Hearing Aid Satisfaction as Measured by Satisfaction With Amplification in Daily Life (SADL) Survey

    3 months , 6 months

  • Change in Hearing Related Quality Life as Measured by Hearing Handicap Inventory for Elderly (HHIE) Survey Completion

    Baseline, 3 months, 6 months

  • +7 more secondary outcomes

Study Arms (2)

Bilateral hearing aid fitting group

OTHER
Device: Hearing amplification

Unilateral hearing aid fitting group

ACTIVE COMPARATOR
Device: Hearing amplification

Interventions

Bilateral vs. unilateral hearing aids for hearing loss

Bilateral hearing aid fitting groupUnilateral hearing aid fitting group

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • + years of age
  • Ability to read and understand English
  • Mild to moderate sensorineural hearing loss (defined by a pure-tone average at 500, 1000, and 2000 Hz of \<55 dB HL in each ear, and the 3000 Hz and 4000 Hz threshold \<80 in each ear), based on a hearing test obtained within the last 6 months by a licensed audiologist.
  • Symmetrical hearing loss defined by \<20 dB difference between the pure-tone average of 500, 1000, and 2000 Hz between ears)
  • Interested in purchasing hearing aids, but is open minded about trying one or two hearing aids
  • No prior hearing aid use longer than 3 months (as documented via self-report)
  • Adequate literacy to complete questionnaires
  • Willing to purchase study-specific hearing aid(s)
  • Access to a smart phone and the internet

You may not qualify if:

  • Concerns for middle ear pathology (e.g., air bone gap of \>15 dB at 2 consecutive octave frequencies in either ear)
  • Concerns for retrocochlear pathology by audiologist (e.g unilateral tinnitus or ear fullness, referral to ENT/Auditory Brainstem Response testing to r/o acoustic neuroma)
  • Severe tinnitus as the reason for seeking amplification
  • Co-morbid condition that would interfere with study (e.g., dementia, blindness, neurologic pathology)
  • History of fluctuating hearing loss

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Duke University Medical Center

Durham, North Carolina, 27710, United States

Location

Vanderbilt University Medical Center

Nashville, Tennessee, 37232, United States

Location

MeSH Terms

Conditions

Hearing Loss

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Sherri L. Smith, PhD, AuD, CCC-A
Organization
Duke University Medical Center

Study Officials

  • Sherri Smith, AuD,PhD

    Duke Health

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 26, 2021

First Posted

February 4, 2021

Study Start

April 26, 2021

Primary Completion

July 12, 2024

Study Completion

September 20, 2024

Last Updated

April 10, 2025

Results First Posted

April 10, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

Open access to de-identified, coded IPD will be made available via Duke's Research Data Repository.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE

Locations