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Could 3D-Printed ear tips make hearing aids more comfortable?

NCT ID NCT07228845

Symptom relief Sponsor: University of Arizona Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares 3D-printed ear tips to standard ones for hearing aids in 32 adults with hearing loss. Participants will try each type for a week and rate comfort, sound quality, and fit. Researchers will also measure production time and cost to see if 3D printing is a practical alternative.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
3D-printed ear tips
What this could lead to
If successful, this could lead to more comfortable and affordable hearing aid fittings using 3D printing technology.
What could go wrong
This is a small, early-stage study with only 32 participants, so results may not apply to everyone. The ear tips are custom-made, which could limit widespread use.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 32 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2026

Expected to finish

Apr 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 89 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Bilateral, symmetric, sensorineural hearing loss, with thresholds between normal and severe degree of hearing loss * Normal otoscopy: patent ear canals with normal appearing eardrums and aerated middle ear, bilaterally. * English speaking. Exclusion Criteria: * Self reported history of extensive or current outer or middle ear pathology. * Self reported history of extensive outer or middle ear surgery. * Self reported history of neurological or cognitive disorder. * Active ear infection

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Conditions

The condition(s) this trial relates to.

hearing loss disorder sensorineural hearing loss disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

3D printing Hearing AIDS Hearing loss, bilateral sensorineural

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • The University of Arizona Hearing Clinic

    RECRUITING

    Tucson, Arizona, 85721, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.