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Spatial Hearing DevelopmentEarly Phase 1NCT05815537

Development of Functional Spatial Hearing in Reverberation

A Early Phase 1 study testing Low-Reverberation and High-Reverberation in people with Spatial Hearing Development, run by Father Flanagan's Boys' Home at 1 site in United States.

Completed

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

Official record
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Trial summary

The goal of the clinical trial study (Phase 0) is to map out the developmental trajectory of functional spatial hearing abilities in reverberant environments for children with normal hearing between the ages of 6 and 18 years, and to understand the inter-relationships between the three perceptual abilities: auditory… Read more about this study

Who is it for?
Ages 6 to 30 yearsHealthy volunteers can take part
Conditions the study is for
Spatial Hearing Development
What is being tested?
Low-Reverberation and High-Reverberation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
116 participants
Where
1 siteUnited States
Study dates
1 Jan 2024to 1 Mar 2026
Phase
Early Phase 1
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 6 to 30 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • All individuals within age limits who are typically developing with normal hearing who pass 25 dB HL from 250 Hz to 8000 Hz.

Who cannot join

  • Individuals who fail hearing screen as described above.
  • Individuals who have a diagnosed intellectual developmental disability

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boys Town National Research Hospital

    Omaha, Nebraska, 68131

Other trials in United States

About this study

The goal of the clinical trial study (Phase 0) is to map out the developmental trajectory of functional spatial hearing abilities in reverberant environments for children with normal hearing between the ages of 6 and 18 years, and to understand the inter-relationships between the three perceptual abilities: auditory object size formation, spatial acuity, and spatial unmasking during typical development. Children are asked to perform psychoacoustic tasks when the auditory stimuli are processed to present in virtual acoustic environments (1) with no reverberation and (2) with one of the two levels of reverberation that emulate everyday indoor environments. The intervention of this clinical study is in the random assignment of one of the two reverberant environments. Researchers will compare these children with a group of normal-hearing adults to anchor matured performances.

Being tested
Low-Reverberation, High-Reverberation

What participants receive

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

  • Low-ReverberationOther

    The exposure to low-reverberation is by presenting auditory stimuli to participants that are digitally processed to contain auditory cues that sound more or less reverberant, e.g., small classroom.

  • High-ReverberationOther

    The exposure to high-reverberation is by presenting auditory stimuli to participants that are digitally processed to contain auditory cues that sound more or less reverberant, e.g., large lecture hall/auditorium.

Study groups in NCT05815537
Study groupRoleWhat they receive
Low-ReverberationExperimentalParticipants perform psychoacoustic tasks under a low-reverberant environment and a control environment without reverberation.
Receives: Other: Low-Reverberation
High-ReverberationExperimentalParticipants perform psychoacoustic tasks under a high-reverberant environment and a control environment without reverberation.
Receives: Other: High-Reverberation

What is being measured

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

  1. Auditory Object Size (Apparent Source Width)

    Psychoacoustic measure of the smallest detectable change in width of an auditory image in degree angular span in the horizontal plane

    Measured: Year 1-3

  2. Spatial Acuity (Minimum audible angle)

    Psychoacoustic measure of the smallest detectable angular separation between two auditory objects

    Measured: Year 1-3

  3. Spatial Unmasking (Minimum angular separation)

    Psychoacoustic measure of the smallest angular separation to gain a target speech benefit in the presence of distracting speech maskers

    Measured: Year 1-3

Timeline

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

  1. First posted18 Apr 2023
  2. Study start1 Jan 2024
  3. Primary completion1 Mar 2026
  4. Study completion1 Mar 2026

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
Early Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Model description
There are two arms in the exposure of reverberation for participants. For children (n1=45) and adults (n1=15) assigned to Arm 1, they receive a non-reverberant environment (control) and a low-reverberant environment (intervention A). For children (n2 = 45) and adults (n2 = 15) assigned to Arm 2, they receive the same non-reverberant environment (control) and a high-reverberant environment (intervention B). Both arms of children and adults enrolled perform the same psychoacoustic tasks for outcome assessments.
Masking
None (open label)
Enrolment
116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05815537
Sponsor's protocol ID
BoysTown
Status last verified
Apr 2026
First submitted
4 Apr 2023
Last updated
28 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Low-Reverberation and High-Reverberation in people with Spatial Hearing Development, run by Father Flanagan's Boys' Home at 1 site 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 1 inclusion and 2 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 28 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Auditory Object Size (Apparent Source Width) (time frame: Year 1-3). The study lists 3 primary outcomes in all. 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 28 Apr 2026.

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