EarGenie MVP Performance Evaluation

NCT ID: NCT06406088

Last Updated: 2025-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-15

Study Completion Date

2025-12-15

Brief Summary

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This is a single-group clinical trial to evaluate the performance of the EarGenie minimum viable product (MVP) in normal hearing infants. The EarGenie MVP tests for detection and discrimination of sounds will be administered, and the sensitivity and specificity of the tests will be estimated for a range of sound levels (detection) and speech sound contrasts (discrimination).

Detailed Description

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Procedures:

All procedures will be carried out in a single test session.

Determination of infant eligibility will be undertaken by confirming that the infant has passed hearing screening or diagnostic audiological assessment and is under the age of 2 years.

Before completing the fNIRS tests, the infant will undergo otoscopy and tympanometry to exclude possible temporary conductive hearing loss associated with abnormal tympanometric results. These are standard audiological procedures. If the infant has abnormal tympanometric results in both ears on the day, the test session will be rescheduled. The parent/guardian will be advised of the finding and its possible consequences (possible conductive hearing loss, possible progression to acute otitis media) and advised to seek medical advice should the infant show signs of illness or if hearing loss is suspected.

All assessments in the fNIRS test session will be undertaken by qualified paediatric audiologists who are trained in the fNIRS procedures.

For the fNIRS tests, the infant will be asleep or in a quietly entertained response state.

After the headgear is placed on the infant's head, an optode calibration procedure is undertaken to ensure the equipment is ready. During the actual test, blocks of speech sounds lasting 5.4 seconds will be played to the infant either via tubephone or via speakers. During and after the test session, the infant will be monitored for any signs of discomfort or distress. Testing will discontinue if the infant is not either asleep or in a quiet response state.

For the detection test, a single speech sound "BA" will be presented at several levels (35, 50, and 65 dBSPL), and the test blocks will include "no sound" blocks to allow estimates of false positive results.

For the discrimination test, three different speech contrasts will be presented ("BA/TEA", "BA/BEE", and "BA/GA") at 65 dB SPL. The test will also include blocks of "BA/BA" to allow estimates of false positive rates.

For each infant, the sound levels at which "BA" evoked a statistically significant response will be recorded, and/or the speech contrasts which evoked a significant discrimination response will be recorded. Each infant will either have a detection test or a discrimination test, or both if their response state allows. At least 50 full detection and 50 full discrimination test results for estimating sensitivity and specificity outcome measures will be obtained.

Conditions

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Hearing Impaired Children

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

A single group of infants without hearing impairment will be recruited so that the performance of the two EarGenie MVP tests of speech sound detection and discrimination can be estimated.
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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EarGenie MVP

Infants who have a test completed with EarGenie MVP in a single test session

Group Type EXPERIMENTAL

EarGenie MVP test

Intervention Type DEVICE

The EarGenie MVP test consists of placing the EarGenie headgear containing light emitting diodes (LEDs) and light detectors on the infant and running the fNIRS tests of sound detection or sound discrimination via the user interface. Blocks of speech sounds are presented to the infant via earphones or via speaker, and the EarGenie MVP measures changes in the blood oxygenation in temporal and prefrontal regions of the cortex. Automatic analyses are run to determine whether the infant heard the sounds (at levels 35, 50, and 65 dBSPL) or discriminated between two sounds (Ba/Tea, Ba/Bee, or Ba/Ga). The infant will be in a natural sleep or quiet awake state when the fNIRS test is run. Prior to the test, standard audiometric procedures (otoscopy and tympanometry) will confirm normal middle ear function.

Interventions

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EarGenie MVP test

The EarGenie MVP test consists of placing the EarGenie headgear containing light emitting diodes (LEDs) and light detectors on the infant and running the fNIRS tests of sound detection or sound discrimination via the user interface. Blocks of speech sounds are presented to the infant via earphones or via speaker, and the EarGenie MVP measures changes in the blood oxygenation in temporal and prefrontal regions of the cortex. Automatic analyses are run to determine whether the infant heard the sounds (at levels 35, 50, and 65 dBSPL) or discriminated between two sounds (Ba/Tea, Ba/Bee, or Ba/Ga). The infant will be in a natural sleep or quiet awake state when the fNIRS test is run. Prior to the test, standard audiometric procedures (otoscopy and tympanometry) will confirm normal middle ear function.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Each infant must meet all of the following criteria to be enrolled in this trial:

* Is between the ages of 1 and 24 months at the time of fNIRS testing.
* Has no known hearing loss, having either passed newborn hearing screening or diagnostic audiological assessment.
* Has a legally acceptable representative capable of understanding the informed consent document and providing consent on the participant's behalf.

Exclusion Criteria

* Infants with skin conditions such as cradle cap, eczema, or other skin conditions on the head will be excluded.
Minimum Eligible Age

1 Month

Maximum Eligible Age

24 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The Bionics Institute of Australia

OTHER

Sponsor Role lead

Responsible Party

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Colette McKay

Leader, Translational Hearing Research and Principal Scientist

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Colette McKay, PhD

Role: PRINCIPAL_INVESTIGATOR

The Bionics Institute of Australia

Locations

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Bionics Institute

Fitzroy, Victoria, Australia

Site Status RECRUITING

Countries

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Australia

Central Contacts

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Colette M McKay, PhD

Role: CONTACT

+61 408698202

Julia Wunderlich, PhD

Role: CONTACT

+61 3 9667 7500

Facility Contacts

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Colette McKay, PhD

Role: primary

+61 408698202

Sally Herring

Role: backup

+61 3 96677592

Other Identifiers

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105500

Identifier Type: -

Identifier Source: org_study_id

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