Long Term Safety of the Sonitus SoundBite System

October 10, 2014 updated by: Sonitus Medical Inc
The objective of this study is to assess the long-term safety and quality of life improvement of the Sonitus SoundBite Hearing System.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The Sonitus Bone Conduction Device (BCD) is a bone conduction device for single-sided deafness (SSD). The Sonitus BCD consists of an Oral Appliance (OA), an external microphone component, worn behind the ear (BTE), a calibration interface cable and a PC-controlled calibration software for subject calibration. The Sonitus BCD picks up sounds from a microphone located within the ear canal of the deaf ear, capitalizing on the acoustics of the natural pinna and ear canal. The signal picked up by the microphone is then transmitted wirelessly to a removeable bone conduction oral appliance located on the upper molars. The oral appliance receives the acoustic signal from the BTE and applies an equivalent vibratory signal to the teeth that reaches the skull via bone conduction and routed transcranially to the contralateral cochlea.

Study Type

Interventional

Enrollment (Actual)

22

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

  • United States
    • California
      • San Jose, California, United States, 95123
        • Camino Ear Nose and Throat

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

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Must be >18, <80 years old
  • Must be fluent in English, as determined by the PI
  • Must not be a member of a vulnerable group (IRB defined)
  • Must remain in geographic area during duration of the study
  • Diagnosis of acquired SSD (Section 3.1), time since onset (≥3 mos)
  • Must have a minimum of 6 posterior teeth remaining in the upper arch (3 teeth per side),third molars are acceptable if healthy, fully erupted and substituting for second molars

Exclusion Criteria:

  • Must not be current users of devices such as Baha, CROS or TransEar

  • Must not have known active medical causes of SSD

    • Active middle ear pathology
    • Conductive HL (Otosclerosis, otitis media, otitis externa and others)
    • Sudden hearing loss that is not stable
  • Must not have known medical problems that might be life-threatening or is a contraindication for elective dental or medical procedures
  • Must not have a history of seizures
  • Must not have known problems that may interfere with the impression procedure, such as inability to breath through nose (e.g. severe flu, allergies or cold)
  • Must not have allergies to polymers

  • Must not have known dental abnormalities

    • Temporary crowns or undergoing dental treatment
    • Poor oral hygiene and/or rampant decay
    • Current orthodontics
    • Active caries in one or more of the possible abutment teeth for the device
    • Active moderate to severe periodontal disease around abutment teeth for the device
    • Suspicious oral/facial lesions or swelling of any type
    • Severe pain on palpation on any area of mouth, face or neck
    • Moderate to severe heat sensitivity on any of the upper teeth
    • Subject currently being treated for temporomandibular joint disorder (TMJ), pain, full mouth reconstruction or posterior dental implants

  • Must not have known Audiological conditions

    • Conductive hearing loss (air-bone gap >10dB HL at more than 3 frequencies)
    • Word recognition scores inconsistent with pure tone averages
    • Fluctuating hearing loss
  • Must not have known psychological factors that interfere with their ability to comply, comprehend, consent and cooperate

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: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: SoundBite Hearing System

The objective of this study was to assess the long-term safety and quality of life impact of the SoundBite™ Hearing System.

Safety was measured in terms of dental, audiological and medical adverse events related to device or procedure.

Quality of Life was measured in terms of changes in Abbreviated Profile of Hearing Aid Benefit (APHAB) and as reported in a quality of life survey (SSD Questionnaire).

The duration of the study was 6 months with measures taken at Day 1, 3 months and 6 months.
Device: Sonitus SoundBite System
Non Surgical Bone Conduction Device
Other Names:
  • Sonitus Bone Conduction Device
Device: SoundBite Hearing System

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Long Term Safety
Time Frame: 6 months
The safety outcomes were defined as no changes in medical, auditory, or dental status and no device or procedure related adverse events during the study period. Safety was evaluated by conducting a Comprehensive Medical evaluation at Enrollment and at study termination; Comprehensive Dental evaluation at Enrollment and at 3 and 6 months, with interim dental checks in between if necessary and Comprehensive Audiological evaluation at Enrollment and at 6 months.
6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measurement of Device Benefit With the Abbreviated Profile of Hearing Aid Benefit (APHAB)
Time Frame: 3 months and 6 months
The measure of the benefit of the device was assessed using the Abbreviated Profile of Hearing Aid Benefit (APHAB) , a 24-item self-assessment inventory in which the amount of difficulty in everyday situations is reported with larger numbers indicating more difficulty. Device benefit is calculated by subtracting the score obtained after using a device from the score obtained before using the device. Software is used to score the APHAB and results are compared from the different timepoints. The APHAB is well characterized and broadly used as a quantifiable measurement. The APHAB benefit scores can range from -99 (treatment worse than no treatment) to +99 (treatment better than no treatment).
3 months and 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sonitus Medical Inc

Investigators

  • Principal Investigator: Michael Murray, MD, Camino ENT

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

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

April 1, 2010

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

April 15, 2010

First Submitted That Met QC Criteria

April 20, 2010

First Posted (Estimate)

April 22, 2010

Study Record Updates

Last Update Posted (Estimate)

October 20, 2014

Last Update Submitted That Met QC Criteria

October 10, 2014

Last Verified

October 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CLN005.00

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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