Early Detection of Noise-Induced Hearing Loss

Withdrawn before enrolling

Conditions studied: Hearing Loss, Sensorineural

In brief

This study measures sounds produced by the sensory receptors of the inner ear called hair cells. These sounds are called otoacoustic emissions and one special case the investigators are studying are called distortion product otoacoustic emissions (DPOAEs) produced by presenting two tones to the ear. If the ear is damaged by noise exposure DPOAEs are reduced. In this study the investigators are attempting to improve the DPOAE test by adding a third tone to make the test more frequency specific. Whether the third tone helps will be determined by comparing DPOAEs collected with and without the third tone to clinical audiograms. If the addition of the third tone helps then the investigators expect DPOAEs tracked as a function of frequency (DP-grams) will more closely match the clinical audiograms.

Key facts

Study ID

NCT01022710

Run by

VA Office of Research and Development

People needed

0

Starts

2010-01-01

Expected to finish

2015-12-01

Last updated by the study team

2015-12-24

Who can join

Age: 18 and older, up to 65. Sex: male. Healthy volunteers: accepted.

You may qualify if…

• Veterans 18-65 years old

You may not qualify if…

• Individuals with no measurable distortion-product otoacoustic emissions (DPOAEs) since the goal of the study is to relate DPOAEs to hearing function

Where it is running

• VA Loma Linda Healthcare System, Loma Linda, CA — Loma Linda, California, United States

Full record on ClinicalTrials.gov

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