Clinical Study of Cochlear Implants in Adults With Asymmetrical Hearing Loss
Completed · Not applicable
Conditions studied: Hearing Loss
In brief
The objective of this study is to investigate benefits of binaural hearing for non-traditional cochlear implant candidates (with Asymmetric Hearing Loss). Asymmetric candidates are patients with severe to profound hearing loss in one ear and better hearing in the other ear. (One ear is deaf and the other ear has better hearing and in most cases uses a hearing aid.) The investigators hypothesize that cochlear implantation of the poorer ear provides a functional increase in word and sentence understanding in quiet or noise, perceived benefit, localization ability, and other measures of auditory performance relative to use of the better hearing ear alone.
Key facts
- Study ID
- NCT02004535
- Run by
- Washington University School of Medicine
- People needed
- 59
- Starts
- 2006-04-01
- Expected to finish
- 2019-07-01
- Last updated by the study team
- 2026-03-11
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- 18 years of age or older at time of surgery
- The poorer ear (implant ear) will have a severe-to-profound hearing loss and meet current cochlear implant candidacy criteria.
- The better ear (contralateral ear) will have hearing levels less than current cochlear implant candidacy criteria and stable/non-fluctuating hearing levels for at least the previous year
- Normal/patent cochlear anatomy
- Fluent in English
- Desire to have more functional binaural hearing and willingness to comply with all of the study requirements
You may not qualify if…
- Medical or psychological conditions that contraindicate undergoing surgery
- Additional handicaps that would prevent or restrict participation in the audiological evaluations
- Ossification or any other cochlear anomaly that might prevent complete insertion of the electrode array
- Hearing loss of neural or central origin, including auditory neuropathy
- Chronic and severe tinnitus in the ear to be implanted
- Unwillingness or inability to comply with all investigational requirements
Where it is running
- Washington University School of Medicine — St Louis, Missouri, United States
Full record on ClinicalTrials.gov
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