Multichannel Vestibular Implant Early Feasibility Study

  • STATUS
    Recruiting
  • End date
    Mar 31, 2026
  • participants needed
    30
  • sponsor
    Johns Hopkins University
Updated on 27 January 2022
imbalance
gentamicin
nystagmus
bilateral vestibulopathy

Summary

Although cochlear implants can restore hearing to individuals who have lost cochlear hair cell function, there is no adequately effective treatment for individuals suffering chronic imbalance, postural instability and unsteady vision due to loss of vestibular hair cell function. Preclinical studies have demonstrated that electrical stimulation of the vestibular nerve via a chronically implanted multichannel vestibular prosthesis can partially restore vestibular reflexes that maintain steady posture and vision. This pilot clinical feasibility study of a multichannel vestibular implant system will evaluate this approach in up to ten human subjects with bilateral vestibular deficiency due to gentamicin ototoxicity or other causes of inner ear dysfunction.

Description

The system used in this study is the (MVI) Multichannel Vestibular Implant System produced by Labyrinth Devices, LLC. It is similar to commercially available cochlear implants in that it includes an implanted stimulator powered and controlled by an external unit, which communicate with the implant across the skin via an inductive link. Unlike a cochlear implant, the implanted stimulator's electrode array is designed for implantation near the ends of the vestibular nerve. The implanted stimulator also includes additional magnets to help facilitate retention of the external unit on the scalp over the implant. The external unit includes a head-worn unit (for sensing head motion and delivering power and signals to the implanted stimulator) and a power and control unit containing a battery and microprocessor. Participants in this trial who meet candidacy criteria and who choose to proceed with implantation surgery, device activation and device deactivation will be asked to participate in a series of post-operative monitoring visits over a 1 year period.

Details
Condition Other Disorders of Vestibular Function, Bilateral, Bilateral Vestibular Deficiency (BVD), Gentamicin Ototoxicity, Labyrinth Diseases, Vestibular Diseases, Sensation Disorders
Treatment Labyrinth Devices MVI™ Multichannel Vestibular Implant
Clinical Study IdentifierNCT02725463
SponsorJohns Hopkins University
Last Modified on27 January 2022

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