AzTrials
AzTrials

Hearing Loss, Noise-InducedNCT03834714

Noise Exposure and Near-Infrared Light

A study testing Near Infrared Light and Noise Stimulus in people with Hearing Loss, Noise-Induced, run by University of Miami at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The primary objective of this work is to determine the effect noise has on the auditory system (both auditory health and performance) and also the degree to which the effect of pre-noise therapy such as Near Infrared (NIR) light can mitigate the effects of noise exposure. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Hearing Loss, Noise-Induced
What is being tested?
Near Infrared Light and Noise Stimulus
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
14 participants
Where
3 sitesUnited States
Study dates
18 Feb 2020to 23 Dec 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 18-45 years old, male or female
  • Pass hearing exam with a threshold of 25 decibels (dB) hearing or less, for each ear, for all frequencies tested from 500 Hz to 8000 Hz
  • Normal otoscopic exam, otoacoustic emissions (OAEs), and middle ear function as demonstrated by a normal tympanogram
  • Completion of a hearing history questionnaire

Who cannot join

  • Screening hearing test failure
  • Pregnant females
  • Adults unable to provide consent
  • History of significant ear surgery

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • U.S. Army Aeromedical Research Laboratory

    Fort Rucker, Alabama, 36362

  • University of Miami Miller School of Medicine

    Miami, Florida, 33136

  • Wright-Patterson Air Force Base

    Wright-Patterson Air Force Base, Ohio, 45433

Other trials in United States

About this study

Official title: Effects of Noise Exposure and Near Infrared Light (NIL) on Auditory Health and Performance

The primary objective of this work is to determine the effect noise has on the auditory system (both auditory health and performance) and also the degree to which the effect of pre-noise therapy such as Near Infrared (NIR) light can mitigate the effects of noise exposure.

Being tested
Near Infrared Light, Noise Stimulus, Sham Near Infrared Light
Keywords
Noise induced hearing loss, Near infrared energy, Hering test
Medical subject headings
Hearing Loss, Noise-Induced

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Near Infrared LightDevice

    NIR Light Therapy will be administered with the Earlight Generation 1.4 device during 2 out of the 4 sessions. It will be administered to each ear individually for 30 minutes per ear.

  • Noise StimulusOther

    Noise stimulus will be administered, open ear, to continuous broadband noise up to 25% of the allowable daily dose of noise per the AFI 48-127 Occupational Noise and Hearing Conservation Program.

  • Sham Near Infrared LightDevice

    Sham NIR Light Therapy will be administered with the Earlight Generation 1.4 device during 2 out of the 4 sessions. It will be administered to each ear individually for 30 minutes per ear.

Study groups in NCT03834714
Study groupRoleWhat they receive
Noise Stimulus and Infrared LightActive comparatorAll participants will receive noise stimulus at each of the 4 visits. In addition, they will receive infrared light therapy for 2 out of the 4 visits and sham infrared light therapy for the other 2 visits.
Receives: Device: Near Infrared Light; Other: Noise Stimulus
Noise Stimulus and ShamSham comparatorAll participants will receive noise stimulus at each of the 4 visits. In addition, they will receive sham infrared light therapy for 2 out of the 4 visits and infrared light therapy for the other 2 visits.
Receives: Other: Noise Stimulus; Device: Sham Near Infrared Light

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in auditory threshold

    Auditory function tests will be measured through the change in air conduction threshold measurements from 500 up to 8000 Hz

    Measured: Baseline, up to 365 days

Secondary outcomes (2)
  1. Change in otoacoustic emissions (OAE)

    Auditory performance will be measured through OAE testing

    Measured: Baseline, up to 365 days

  2. Change in central auditory performance (CAP)

    Auditory performance will be measured through central auditory processing assessments

    Measured: Baseline, up to 365 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Feb 2019
  2. Study start18 Feb 2020
  3. Primary completion23 Dec 2021
  4. Study completion23 Dec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03834714
Sponsor's protocol ID
20181214
Other IDs
GR014085
Status last verified
Apr 2022
First submitted
5 Feb 2019
Last updated
19 Apr 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Near Infrared Light and Noise Stimulus in people with Hearing Loss, Noise-Induced, run by University of Miami at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in auditory threshold (time frame: Baseline, up to 365 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Apr 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in