- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03374787
Evaluation of Sound Processor for a Transcutaneous System
April 23, 2019 updated by: Oticon Medical
Single Center Evaluation of a Sound Processor for a Transcutaneous System
A single center study evaluating the performance of an externally worn sound processor for a transcutaneous bone anchored hearing system using audiological outcomes measures such as aided thresholds and speech intelligibility and self evaluation questionnaires.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Bone conduction hearing systems use the body's natural ability to transfer sound through bone conduction.
The sound processor picks up sound and converts it into vibrations that are transferred through the skull bone to the inner ear (cochlea).
Thus, for patients with conductive or mixed hearing losses, patients with lasting hearing loss following a middle ear disease or malformations (such as microtia), the vibrations are bypassing the conductive problem in the ear canal or middle ear.
Bone conduction devices currently on the market are divided into three types; transcutaneous direct drive, percutaneous (skin penetrating) direct drive and transcutaneous skin drive bone conduction devices.
This evaluation focus on a sound processor used for a transcutaneous system.
Study Type
Interventional
Enrollment (Actual)
10
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
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Gothenburg, Sweden, 413 46
- ENT departement, Sahlgrenska University Hospital
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subjects implanted with the Bridging Bone Conductor (BBC) implant
- Subjects that have completed one year follow up in Osseofon BCI (Bone Conduction Implant) study
- Subjects available for 6 months study procedures without affecting the follow ups in the Osseofon BCI study
- Active user of the BCI SP
Exclusion Criteria:
- Inability to participate in follow-ups
- Unsuitable as judged by the principle investigator or the sub-investigator
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Device Feasibility
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Fusion sound processor
The sound processor picks up the sound and transfer it to the implant that convert the sound to vibrations that are transmitted to the inner ear.
|
Sound Processor
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Aided thresholds Fusion-unaided PTA
Time Frame: 6 months
|
Difference between Fusion-aided and unaided sound field Pure Tone Average of thresholds at frequencies 500, 1000, 2000 and 4000 Hz (PTA 4)
|
6 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Aided thresholds Fusion-unaided
Time Frame: 6 months
|
Difference between Fusion-aided and unaided sound field Pure Tone thresholds at frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 Hz
|
6 months
|
Aided thresholds Fusion PTA4
Time Frame: Baseline, 1 and 6 month(s)
|
Difference between Fusion-aided sound field PTA4 at frequencies 500, 1000, 2000 and 4000 Hz (PTA 4)
|
Baseline, 1 and 6 month(s)
|
Aided thresholds Fusion
Time Frame: Baseline, 1 and 6 month(s)
|
Difference between Fusion-aided sound field pure tones at frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 Hz at
|
Baseline, 1 and 6 month(s)
|
Aided thresholds Fusion-BCI PTA4
Time Frame: 6 months
|
Difference between Fusion-aided and BCI-aided sound field Pure Tone Average 4 at frequencies 500, 1000, 2000 and 4000 Hz (PTA4)
|
6 months
|
Aided thresholds Fusion-BCI
Time Frame: 6 months
|
Difference between Fusion-aided and BCI-aided sound field pure tones at frequencies 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 Hz
|
6 months
|
Speech intelligibility Fusion-unaided %
Time Frame: 6 months
|
Difference between Fusion-aided and unaided speech intelligibility scores (in % correct)
|
6 months
|
Speech intelligibility Fusion-unaided signal to noise ratio (SNR)
Time Frame: 6 months
|
Difference between Fusion-aided and unaided sound field speech intelligibility scores in SNR
|
6 months
|
Speech intelligibility Fusion %
Time Frame: Baseline, 1 and 6 month(s)
|
Difference between Fusion-aided speech intelligibility scores (in % correct)
|
Baseline, 1 and 6 month(s)
|
Speech intelligibility Fusion SNR
Time Frame: Baseline, 1 and 6 month(s)
|
Difference between Fusion-aided sound field sound field speech intelligibility scores in SNR
|
Baseline, 1 and 6 month(s)
|
Speech intelligibility Fusion-BCI %
Time Frame: 6 months
|
Difference between Fusion-aided BCI-aided speech intelligibility scores (in % correct)
|
6 months
|
Speech intelligibility Fusion-BCI SNR
Time Frame: 6 months
|
Difference between Fusion-aided and BCI-aided sound field speech intelligibility scores in SNR
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6 months
|
Magnet strength
Time Frame: Baseline, 1 and 6 month(s)
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Difference in magnet strength measured on the patient's heads in Newton
|
Baseline, 1 and 6 month(s)
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IPS (Inflammation, Pain, Skin height/numbness) evaluation
Time Frame: Baseline, 1 and 6 month(s)
|
Combined score of IPS evaluating the skin area under the sound processor.
I scale ranging from 0-4, Pain scale ranging from 0-2, Skin height/numbness ranging from 0-2.
Total score 0-8 (0 no adverse skin condition, 8 maximum adverse skin reactions on all subscales)
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Baseline, 1 and 6 month(s)
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Subjective evaluation
Time Frame: Baseline, 1 and 6 month(s)
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User satisfaction and usability as measured with questionniare "Usage of sound processor" consisting of rating scales on satisfaction of the sound processor
|
Baseline, 1 and 6 month(s)
|
Subjective evaluation SSQ
Time Frame: Baseline, 1 and 6 month(s)
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Subjective performance as measured by Speech, Spatial and Quality (SSQ) a scale from 0-10 where 0 represents "Not at all" and 10 represents "Perfect"
|
Baseline, 1 and 6 month(s)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Måns Eeg Olofsson, MD, Sahlgrenska University Hospital, Sweden
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
November 15, 2017
Primary Completion (Actual)
November 22, 2018
Study Completion (Actual)
November 22, 2018
Study Registration Dates
First Submitted
December 4, 2017
First Submitted That Met QC Criteria
December 14, 2017
First Posted (Actual)
December 15, 2017
Study Record Updates
Last Update Posted (Actual)
April 24, 2019
Last Update Submitted That Met QC Criteria
April 23, 2019
Last Verified
April 1, 2019
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- C58
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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