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Real-World Benefit From Directional Hearing Aids

NCT00438334 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 105

Last updated 2016-11-22

No results posted yet for this study

Summary

Directional microphone hearing aids have been shown to provide benefit for individuals with hearing loss in a number of laboratory experiments. However, few studies have investigated the real-world, subject-reported benefit from these hearing aids, and even fewer have examined directional hearing aid benefit across varying degrees of hearing loss. This study will summarize data from a three-year, multi-faceted study of directional hearing aid benefit. Ninety four subjects were divided into three hearing loss groups (normal-to-moderate, mild-to-moderately-severe, and moderate-to-profound). These subjects were then fit with experimental hearing aids set to either directional or omnidirectional mode to determine if significant differences were present in hearing aid outcomes (both subjective and objective). Both subject and experimenter were blinded to the hearing aid settings. Following one month of use in each experimental setting, subjects completed: probe microphone measurements, speech understanding in noise testing, use questionnaires, subjective benefit scales, and satisfaction scales. At the conclusion of the study, subjects rated their preferences for the experimental settings in quiet, noise and overall. Both objective measures, as well as subjective data, were analyzed across hearing aid and hearing loss conditions.

Conditions

Interventions

DEVICE

Programmable directional/omni-directional hearing aid

Sponsors & Collaborators

  • VA Office of Research and Development

    collaborator FED

  • Vanderbilt University

    lead OTHER

Principal Investigators

  • David Gnewikow, Ph.D. · Vanderbilt University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2001-04-30
Primary Completion
2004-03-31
Completion
2004-03-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00438334 on ClinicalTrials.gov