Bone Conduction Auditory Performance Via the Tooth for Single-Sided Deafness

NCT ID: NCT00977314

Last Updated: 2014-10-17

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

35 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-09-30

Study Completion Date

2010-02-28

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to determine the safety and efficacy of using bone conduction via the teeth to treat Single-Sided Deafness (SSD).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

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.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Unilateral Hearing Loss

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

SoundBite Hearing System

The objective of this study was to assess the safety and effectiveness of the SoundBite hearing system by Sonitus Medical and to support its intended use for the treatment of unilateral hearing loss. The SoundBite hearing system is a Bone Conduction Device (BCD) and is occasionally referred to as such in the protocol and within this report.

Group Type EXPERIMENTAL

The Sonitus Bone Conduction Hearing System

Intervention Type DEVICE

Comparison of HINT scores (Speech front with noise at better ear) at 30 days tested with the device in place verses with the device removed.

SoundBite

Intervention Type DEVICE

SoundBite Hearing System

Intervention Type DEVICE

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

The Sonitus Bone Conduction Hearing System

Comparison of HINT scores (Speech front with noise at better ear) at 30 days tested with the device in place verses with the device removed.

Intervention Type DEVICE

SoundBite

Intervention Type DEVICE

SoundBite Hearing System

Intervention Type DEVICE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

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 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
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Sonitus Medical Inc

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Michael Murray, MD

Role: PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Hearing Resource Center

Redwood City, California, United States

Site Status

Camino Ear Nose and Throat

San Jose, California, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Ozer E, Adelman C, Freeman S, Sohmer H. Bone conduction hearing on the teeth of the lower jaw. J Basic Clin Physiol Pharmacol. 2002;13(2):89-96. doi: 10.1515/jbcpp.2002.13.2.89.

Reference Type BACKGROUND
PMID: 16411423 (View on PubMed)

Soli SD, Wong LL. Assessment of speech intelligibility in noise with the Hearing in Noise Test. Int J Audiol. 2008 Jun;47(6):356-61. doi: 10.1080/14992020801895136. No abstract available.

Reference Type BACKGROUND
PMID: 18569108 (View on PubMed)

Dahlin GC, Allen FG, Collard EW. Bone-conduction thresholds of human teeth. J Acoust Soc Am. 1973 May;53(5):1434-7. doi: 10.1121/1.1913490. No abstract available.

Reference Type BACKGROUND
PMID: 4712563 (View on PubMed)

Wazen JJ, Spitzer J, Ghossaini SN, Kacker A, Zschommler A. Results of the bone-anchored hearing aid in unilateral hearing loss. Laryngoscope. 2001 Jun;111(6):955-8. doi: 10.1097/00005537-200106000-00005.

Reference Type BACKGROUND
PMID: 11404603 (View on PubMed)

Wazen JJ, Spitzer JB, Ghossaini SN, Fayad JN, Niparko JK, Cox K, Brackmann DE, Soli SD. Transcranial contralateral cochlear stimulation in unilateral deafness. Otolaryngol Head Neck Surg. 2003 Sep;129(3):248-54. doi: 10.1016/S0194-5998(03)00527-8.

Reference Type BACKGROUND
PMID: 12958575 (View on PubMed)

Stenfelt SP, Hakansson BE. Sensitivity to bone-conducted sound: excitation of the mastoid vs the teeth. Scand Audiol. 1999;28(3):190-8. doi: 10.1080/010503999424761.

Reference Type BACKGROUND
PMID: 10489868 (View on PubMed)

Murray M, Miller R, Hujoel P, Popelka GR. Long-term safety and benefit of a new intraoral device for single-sided deafness. Otol Neurotol. 2011 Oct;32(8):1262-9. doi: 10.1097/MAO.0b013e31822a1cac.

Reference Type BACKGROUND
PMID: 21799455 (View on PubMed)

Miller R, Hujoel P, Murray M, Popelka GR. Safety of an intra-oral hearing device utilizing a split-mouth research design. J Clin Dent. 2011;22(5):159-62.

Reference Type BACKGROUND
PMID: 22403981 (View on PubMed)

Popelka GR, Derebery J, Blevins NH, Murray M, Moore BC, Sweetow RW, Wu B, Katsis M. Preliminary evaluation of a novel bone-conduction device for single-sided deafness. Otol Neurotol. 2010 Apr;31(3):492-7. doi: 10.1097/MAO.0b013e3181be6741.

Reference Type BACKGROUND
PMID: 19816229 (View on PubMed)

Murray M, Popelka GR, Miller R. Efficacy and safety of an in-the-mouth bone conduction device for single-sided deafness. Otol Neurotol. 2011 Apr;32(3):437-43. doi: 10.1097/MAO.0b013e3182096b1d.

Reference Type RESULT
PMID: 21221045 (View on PubMed)

Related Links

Access external resources that provide additional context or updates about the study.

http://www.soundbitehearing.com

SoundBite Hearing Device

http://sonitusmedical.com

Sonitus Medical Corporate Page

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CLN002

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Intracochlear Injection of Glucocorticoid
NCT07134075 NOT_YET_RECRUITING PHASE2
Sudden Deafness Treatment Trial
NCT00097448 COMPLETED PHASE3
FX-322 in Sensorineural Hearing Loss
NCT03616223 COMPLETED PHASE1/PHASE2