ClinicalTrials.gg
RecruitingNCT07294976Updated Dec 19, 2025

Evaluation of Actual Maximum Gain in Bone Anchored Devices

An interventional study of Bone Anchored Device A and Bone Anchored Device B in Mixed Hearing Loss, sponsored by Oticon Medical. Recruiting at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-12-19.

Sponsored by Oticon Medical · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Jan 2026, 9 months ago, but the record still lists the study as recruiting.
  • Started Dec 2025; still recruiting 11 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This study will look at how much sound amplification (gain) different bone-anchored hearing devices can provide. The goal is to understand if there are differences between devices and whether these differences affect how well the devices meet the hearing needs of users.

Bone-anchored hearing systems send sound vibrations directly to the inner ear through a small implant in the skull. The amount of amplification a device can provide is important for people with hearing loss. However, the actual maximum amplification available to a user depends on feedback control during fitting and can vary between devices and individuals.

In this study, the actual maximum amplification of Device A and Device B will be compared. In addition the actual maximum amplification of Device A will be compared to Device C as well as the Device B compared to Device C. It will also be investigated whether the amplification limits the prescribed settings for the users.

02

Conditions studied

  • Mixed Hearing Loss
03

In context

Hearing Loss, Mixed Conductive-Sensorineural

44 studies on the registry are indexed under Hearing Loss, Mixed Conductive-Sensorineural; 9 are open to participants now.

This study's planned enrollment of 20 is below the median of 25 across 33 interventional studies indexed under Hearing Loss, Mixed Conductive-Sensorineural.

Browse Hearing Loss, Mixed Conductive-Sensorineural studies →

Lead sponsor

Oticon Medical is the lead sponsor of 45 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. BAHS user with an Oticon Medical compatible abutment
  2. Signed Form
  3. Adult, 18 years or older
  4. MHL with pure tone average (PTA) bone conduction (BC) threshold (measured at 0.5, 1, 2 and 3 kHz) of 25-65dB HL on the indicated ear
  5. MHL with an air-bone-gap (difference between BC and AC thresholds) of at least 15 dB measured at 0.5, 1, 2 and 3 kHz
  6. At least 3 months of experience using a bone conduction device.
  7. Fluent in Swedish to be able to read and understand patient information and informed consent process

Exclusion criteria

Exclusion Criteria:

  1. Participation in another clinical investigation which might cause interference with study participation.
  2. Subjects who do not have the ability or are unwilling to follow procedures/requirements, e.g. to complete questionnaires, according to investigator's discretion.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    All study participants

    All study patients will sequentially be measured with Device A, Device B and Device C

    Device: Bone Anchored Device A · Device: Bone Anchored Device B · Device: Bone Anchored Device C

Interventions

  • DeviceBone Anchored Device A

    Fitting Device A

  • DeviceBone Anchored Device B

    Fitting Device B

  • DeviceBone Anchored Device C

    Fitting Device C

06

What researchers measure

Primary outcomes

  1. Difference in actual maximum gain in dB, between Device A compared to Device B for the mean average of the frequencies 500, 1000, 2000, 3000 and 4000

    Time frame: Baseline, at fitting

Secondary outcomes

  1. Difference in actual maximum gain in dB, between Device A compared to Device B for the for the mean average of the frequencies 500, 1000, 2000 and 4000

    Time frame: Baseline, at fitting

  2. Difference in actual maximum gain in dB, between Device A compared to Device B across frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 kHz

    Time frame: Baseline, at fitting

  3. Difference in actual maximum gain in dB, between Device C compared to Device B for the mean average of the frequencies 500, 1000, 2000, 3000 and 4000

    Time frame: Baseline, at fitting

  4. Difference in actual maximum gain in dB, between Device C compared to Device B for the mean average of the frequencies 500, 1000, 2000 and 4000

    Time frame: Baseline, at fitting

  5. Difference in actual maximum gain in dB, between Device C compared to Device B across frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 kHz

    Time frame: Baseline, at fitting

  6. Number of subjects with a limitation of the prescribed gain in any frequency band with Device A, Device B and Device C

    Time frame: Baseline, at fitting

07

Study locations

1 of 1 sites recruiting
  • Göteborgs Universitet
    Gothenburg, Sweden
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2025 (actual). Primary completion is estimated for Jan 2026, 1 month after the start.

Of 24 industry-sponsored interventional studies with no phase under Hearing Loss, Mixed Conductive-Sensorineural, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 19. This study's planned 1 month is below that.

Counting every sponsor, half of 26 studies reached it within 12 months; a quarter within 5 and three quarters within 24.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 27, 2025
First posted
Dec 19, 2025
StartActual
Dec 4, 2025
Primary completionEst.
Jan 15, 2026
CompletionEst.
Jan 15, 2026
Last update
Dec 19, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 19, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07294976
Lead sponsor
Oticon Medical
Responsible party
Sponsor
First posted
Dec 19, 2025
Start date
Dec 4, 2025
Primary completion
Jan 15, 2026 (estimated)
Completion
Jan 15, 2026 (estimated)
Last update
Dec 19, 2025

Study contacts

Marianne Philipsson Senior Clinical Trial Manager
Contact
maph@oticonmedical.com
+46 (0)70 098 17 15

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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