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Early Detection of Noise-Induced Hearing Loss

NCT01022710 · Status: WITHDRAWN · Type: OBSERVATIONAL

Last updated 2015-12-24

No results posted yet for this study

Summary

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.

Conditions

  • Hearing Loss, Sensorineural

Sponsors & Collaborators

  • VA Office of Research and Development

    lead FED

Principal Investigators

  • Glen K Martin, PhD · VA Loma Linda Healthcare System, Loma Linda, CA

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-01-31
Primary Completion
2015-06-30
Completion
2015-12-31

Countries

  • United States

Study Locations

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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 NCT01022710 on ClinicalTrials.gov