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VertiGO! - Get up and GO! With the Vestibular Implant

Primary Purpose

Bilateral Vestibular Loss

Status
Recruiting
Phase
Not Applicable
Locations
Netherlands
Study Type
Interventional
Intervention
Cochlear Vestibular Implant (CVI)
Sponsored by
Maastricht University Medical Center
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional device feasibility trial for Bilateral Vestibular Loss focused on measuring Vestibular Implant, Cochlear vestibular implant, Bilateral vestibulopathy, Bilateral vestibular hypofunction, Bilateral vestibular loss, Cochlear implant

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion criteria:

  1. Chronic vestibular syndrome being presented by disabling symptoms of postural imbalance and/or impaired image stabilization (e.g. oscillopsia)
  2. Reduced or absent bilateral VOR function based on at least one of the tests below meeting criteria A, with the other tests meeting criteria B:

    Criteria A: Caloric response: Each side ≤6°/sec, vHIT gain: Bilateral horizontal SCC ≤ 0.6 AND Bilateral vertical SCC <0.7, Rotatory chair gain: ≤ 0.1 (0.1 Hz)

    Criteria B: Caloric response: Each side <10°/sec, vHIT gain: 2 Bilateral SCC <0.7, Rotatory chair gain: ≤ 0.2 (0.1 Hz)

  3. Onset of bilateral vestibular loss after the age of 2
  4. Vestibular dysfunction from a peripheral origin or idiopathic BV
  5. Patent vestibular end-organ (judged by CT)
  6. Vestibular function and symptoms have not recovered beyond inclusion criteria within 6 months from onset of symptoms including a 3 month rehabilitation program off vestibular suppressant medications
  7. Meeting CI-candidacy in ear to implant with CVI
  8. Agreed to receive a MED-EL CVI implant with MED-EL sound processor
  9. Capacitated adults ≥ 18 years
  10. Proficient speaker of the Dutch language
  11. No contra-indications for CVI surgery
  12. Active participation in the trial related procedures such as regular testing, the VI fitting period, the baseline testing day and three weeks of intensive VI rehabilitation and testing in the study center (MUMC+) including an exercise regimen
  13. Agreed not to swim or to use or operate vehicles, heavy machinery, powered tools or other devices that could pose a threat to the participant, to others, or to property throughout the period of VI activation and until at least 1 day after VI deactivation

Remark: Patients who qualify to receive a regular CI as part of standard clinical care will have a preferential position to be included in the trial.

Exclusion Criteria:

  1. Signs of central vestibular/cochlear dysfunction or structural vestibular/cochlear nerve pathology (judged by physical examination / MRI)
  2. Clear signs of structural nerve pathology or indications of improperly functioning vestibular/cochlear nerves
  3. Requirement for electric-acoustic activation of the CI part (e.g. "hybrid" processor) prior to completion of the prolonged VI stimulation period
  4. Having received a cochlear implant earlier on the side to implant (e.g. explantation/reimplantation)
  5. Having received a cochlear implant from another brand than MED-EL in the other ear (bilateral implantation with different brands is not supported)
  6. Unwillingness to stop the use of antihistamines which might suppress VOR responses (e.g. cinnarizine) in the period of 1 month before until after each measurement point.
  7. Pre-lingual onset of bilateral profound deafness (< 4 years of age)
  8. Active participation in another prospective clinical trial
  9. Pregnancy or having plans to become pregnant at the time of imaging or during the VI trial
  10. Orthopedic, ocular, neurologic or other non-vestibular pathologic conditions of sufficient severity to confound vestibular function tests used in the study
  11. Current psychological or psychiatric disorders that could significantly interfere with the use or evaluation of VI stimulation
  12. Physical or non-physical contraindications for MRI or CT imaging prior to surgery
  13. Making chronic use of psychiatric medication which suppresses VOR responses (e.g. SSRI's, benzodiazepines)
  14. Significant dental problems which prohibit the stable use of a 'bite bar' (used as calibration reference for the gyroscope functionality of the CVI)
  15. Any medical condition, judged by the research team, that is likely to interfere with a study candidate's participation in the study

Sites / Locations

  • Maastricht UMC+Recruiting

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Other

Other

Other

Other

Other

Other

Arm Label

ABC

ACB

BAC

BCA

CAB

CBA

Arm Description

A = Baseline stimulation, no modulation B = Baseline stimulation, modulation stimulation C = Reduced baseline stimulation, modulation stimulation

A = Baseline stimulation, no modulation C = Reduced baseline stimulation, modulation stimulation B = Baseline stimulation, modulation stimulation

B = Baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation C = Reduced baseline stimulation, modulation stimulation

B = Baseline stimulation, modulation stimulation C = Reduced baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation

C = Reduced baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation B = Baseline stimulation, modulation stimulation

C = Reduced baseline stimulation, modulation stimulation B = Baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation

Outcomes

Primary Outcome Measures

Safety of vestibular stimulation via the CVI
Amount of (S)AE's after implantation to determine safety of the device
The feasibility of vestibular stimulation improving Dynamic Visual Acuity during walking
Quantifying vestibulo-ocular reflex restoration on a functional level by evaluating the capacity of vestibular stimulation (via the CVI) to improve dynamic visual acuity while walking. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation improving Dynamic Visual Acuity during passive head movements
Quantifying vestibulo-ocular reflex restoration on a functional level by evaluating the capacity of vestibular stimulation (via the CVI) to improve dynamic visual acuity during fast passive head movements measured with the functional Head Impulse Test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation restoring the high-frequency vestibulo-ocular reflex
Evaluating the capacity of vestibular stimulation (via the CVI) to increase vestibulo-ocular reflex gain during fast passive head movements in the LHRH, RALP and LARP planes measured with the video Head Impulse Test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation restoring the low-frequency vestibulo-ocular reflex
Evaluating the capacity of vestibular stimulation (via the CVI) to increase vestibulo-ocular reflex gain during slow, passive, full body rotations measured with the Torsion Swing test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation improving the self-movement perception in dark
Evaluating whether vestibular stimulation (via the CVI) can improve self-motion perception measured by controlled motion stimuli delivered by a moving platform. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation improving gait stability and balance based on motion capture data
Evaluating the influence of vestibular stimulation (via the CVI) on walking patterns and stability based on motion capture data. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
The feasibility of vestibular stimulation improving balance based on clinical evaluation
Clinical evaluation of the influence of vestibular stimulation (via the CVI) on balance measured with the MiniBESTest. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Speech perception with CVI in quiet without simultaneous vestibular stimulation
Evaluating hearing performance with the CVI based on speech perception in quiet measured with an aided consonant-nucleus-consonant word test, without simultaneous vestibular stimulation
Interaction between vestibular and cochlear stimulation on speech perception in quiet
Evaluating hearing performance with the CVI based on speech perception in quiet while simultaneously providing vestibular stimulation, measured with an aided consonant-nucleus-consonant word test. The influence of each vestibular stimulation algorithm will be evaluated separately.
Speech perception with CVI in noise without simultaneous vestibular stimulation
Evaluating hearing performance with the CVI based on speech perception in noise measured with a sentence speech In noise test, without simultaneous vestibular stimulation
Change in otolith function due to CVI implantation
Evaluating the influence of CVI implantation on otolith function based on cVEMP and oVEMP responses post-operatively, comparing with the pre-operative situation.
Vestibular and cochlear electrode location
Evaluating the location and potential migration of the vestibular and cochlear electrodes of the CVI with cone-beam CT scans- of the mastoid.

Secondary Outcome Measures

Characterization of study population on perceived dizziness
Characterizing the study population based on their perceived dizziness and the related handicap measured with the Dizziness Handicap Inventory.
Characterization of study population on perceived risk of falling
Characterizing the study population based on their perceived risk of falling measured with the Falls Efficacy Scale-International
Characterization of study population on perceived severity of oscillopsia
Characterizing the study population based on their perceived severity of oscillopsia measured with the Oscillopsia Severity Questionnaire
Subjective hearing performance of the CVI
Evaluating the subjective hearing performance of the CVI measured with the Speech and Spatial Qualities of hearing scale-12
Effect of CVI implantation on tinnitus burden
Evaluating the influence of CVI implantation on the subjective severity and burden of tinnitus measured with the Tinnitus Questionnaire
Characterization of study population on perceived health-related quality of life
Characterizing the study population based on their perceived health-related quality of life measured with the Health Utility Index - 3
Evaluating the influence of receiving and using a CVI on quality of life
Evaluating the influence of the different stages of receiving and using a CVI on quality of life measured with the EuroQOL 5 Dimensional questionnaire. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on quality of life
Evaluating the influence of receiving and using a CVI on capabilities in life
Evaluating the influence of the different stages of receiving and using a CVI on capabilities in life measured with the ICEPOP Capability measure for adults. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on quality of life.
Evaluating the influence of receiving and using a CVI on anxiety and depression
Evaluating the influence of the different stages of receiving and using a CVI on anxiety and depression measured with the Hospital Anxiety and Depression Scale. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on these aspects.
Evaluating the daily experience with vestibular stimulation
A self-developed visual-analog scale-based list of questions for evaluating the participant's experience with the CVI on a daily basis during the prolonged stimulation period.
Characterizing the participant's experience with vestibular stimulation
Semi-standardized interviews for in-depth qualitative analysis of the participant's experience with receiving vestibular stimulation (via the CVI)

Full Information

First Posted
April 28, 2021
Last Updated
December 5, 2022
Sponsor
Maastricht University Medical Center
Collaborators
University Hospital, Geneva, MED-EL Elektromedizinische Geräte GesmbH, Health Holland, Heinsius-Houbolt Fund, Radboud University Medical Center
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1. Study Identification

Unique Protocol Identification Number
NCT04918745
Brief Title
VertiGO! - Get up and GO! With the Vestibular Implant
Official Title
VertiGO! - Get up and GO! With the Vestibular Implant
Study Type
Interventional

2. Study Status

Record Verification Date
November 2022
Overall Recruitment Status
Recruiting
Study Start Date
July 1, 2021 (Actual)
Primary Completion Date
December 2024 (Anticipated)
Study Completion Date
June 2027 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Maastricht University Medical Center
Collaborators
University Hospital, Geneva, MED-EL Elektromedizinische Geräte GesmbH, Health Holland, Heinsius-Houbolt Fund, Radboud University Medical Center

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
In the VertiGO! trial 13 participants with bilateral vestibulopathy (BV) and severe sensory neural hearing loss in the ear to be implanted will receive a combined cochlear (CI) and vestibular implant (VI), capable of stimulating both the cochlear and vestibular nerves (CVI). The participants will make use of this combined stimulation during 3 weeks of prolonged use under supervision in a hospital environment. This trial will serve as a proof-of-concept for restoring vestibular function in patients with BV, an as-of-yet untreatable disorder causing severe impairment and discomfort. The aims of this trial are to investigate efficacy and safety of prolonged vestibular stimulation, to identify the influence of different stimulation algorithms, to assess the feasibility of the combined VI/CI device, to develop a VI rehabilitation program and to further build on the fundamental knowledge of vestibular organ stimulation while also taking into account the patient perspective.
Detailed Description
The vestibular sensory organ is essential for balance and image stabilization. Patients with severe function loss of both vestibular organs present themselves with serious day-to-day disabilities such as strong balance disturbances, higher risk of falling, visual symptoms (oscillopsia) and a loss of autonomy. Up until now no effective treatment is available for these patients to restore vestibular function. In the past years experimental electric stimulation of the vestibular nerve in humans by means of a VI has shown to be able to partly restore balance and gaze functionality in test situations. To evaluate combined prolonged stimulation of both the vestibular organ and the cochlea, participants will be implanted with a CVI. This modified CI also consists of 3 vestibular electrodes, each placed in individual electrode leads for insertion into the three semicircular canals. Therefore the CVI is capable of stimulating both the cochlear and vestibular nerves. Hearing rehabilitation with the CI part of the device will follow the standard clinical protocol, with the participant using a standard CI processor. Functionality of prolonged combined vestibular and cochlear stimulation will be assessed using a research processor during 3 weeks (3x4 days, +- 8 hours a day) of prolonged stimulation under supervision in the safety of a hospital environment. During each identical period of 4 days a different stimulation algorithm will be used for vestibular stimulation, with the order being randomized and single-blinded. The stimulation algorithms which will be used are (1) baseline stimulation without motion modulation, (2) baseline stimulation with motion modulation, and (3) reduced baseline stimulation with motion modulation. Alongside the 3 weeks of prolonged stimulation, the participant will make yearly visits to our clinic up to 5 years after implantation for evaluation of long-term response to acute vestibular stimulation and general CI performance.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Bilateral Vestibular Loss
Keywords
Vestibular Implant, Cochlear vestibular implant, Bilateral vestibulopathy, Bilateral vestibular hypofunction, Bilateral vestibular loss, Cochlear implant

7. Study Design

Primary Purpose
Device Feasibility
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Model Description
Controlled clinical trial with a randomized single-blind 3-treatment 3-period crossover design
Masking
Participant
Allocation
Randomized
Enrollment
13 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
ABC
Arm Type
Other
Arm Description
A = Baseline stimulation, no modulation B = Baseline stimulation, modulation stimulation C = Reduced baseline stimulation, modulation stimulation
Arm Title
ACB
Arm Type
Other
Arm Description
A = Baseline stimulation, no modulation C = Reduced baseline stimulation, modulation stimulation B = Baseline stimulation, modulation stimulation
Arm Title
BAC
Arm Type
Other
Arm Description
B = Baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation C = Reduced baseline stimulation, modulation stimulation
Arm Title
BCA
Arm Type
Other
Arm Description
B = Baseline stimulation, modulation stimulation C = Reduced baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation
Arm Title
CAB
Arm Type
Other
Arm Description
C = Reduced baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation B = Baseline stimulation, modulation stimulation
Arm Title
CBA
Arm Type
Other
Arm Description
C = Reduced baseline stimulation, modulation stimulation B = Baseline stimulation, modulation stimulation A = Baseline stimulation, no modulation
Intervention Type
Device
Intervention Name(s)
Cochlear Vestibular Implant (CVI)
Intervention Description
The Cochlear Vestibular Implant (CVI) is a modified cochlear implant (CI) which also incorporates a vestibular component (VI) in order to restore both hearing and vestibular function. Three vestibular stimulation algorithms will be compared in a randomized order (3 treatments x 3 periods, = 6 arms). These stimulation algorithms are: A - Baseline stimulation, no modulation stimulation B - Baseline stimulation, modulated stimulation C - Reduced baseline stimulation, modulated stimulation
Primary Outcome Measure Information:
Title
Safety of vestibular stimulation via the CVI
Description
Amount of (S)AE's after implantation to determine safety of the device
Time Frame
Through full trial period, up to 5 years postoperatively
Title
The feasibility of vestibular stimulation improving Dynamic Visual Acuity during walking
Description
Quantifying vestibulo-ocular reflex restoration on a functional level by evaluating the capacity of vestibular stimulation (via the CVI) to improve dynamic visual acuity while walking. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation improving Dynamic Visual Acuity during passive head movements
Description
Quantifying vestibulo-ocular reflex restoration on a functional level by evaluating the capacity of vestibular stimulation (via the CVI) to improve dynamic visual acuity during fast passive head movements measured with the functional Head Impulse Test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation restoring the high-frequency vestibulo-ocular reflex
Description
Evaluating the capacity of vestibular stimulation (via the CVI) to increase vestibulo-ocular reflex gain during fast passive head movements in the LHRH, RALP and LARP planes measured with the video Head Impulse Test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation restoring the low-frequency vestibulo-ocular reflex
Description
Evaluating the capacity of vestibular stimulation (via the CVI) to increase vestibulo-ocular reflex gain during slow, passive, full body rotations measured with the Torsion Swing test. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation improving the self-movement perception in dark
Description
Evaluating whether vestibular stimulation (via the CVI) can improve self-motion perception measured by controlled motion stimuli delivered by a moving platform. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation improving gait stability and balance based on motion capture data
Description
Evaluating the influence of vestibular stimulation (via the CVI) on walking patterns and stability based on motion capture data. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
The feasibility of vestibular stimulation improving balance based on clinical evaluation
Description
Clinical evaluation of the influence of vestibular stimulation (via the CVI) on balance measured with the MiniBESTest. Adaptation to stimulation will be evaluated through each 4-day stimulation period with each stimulation algorithm being evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
Speech perception with CVI in quiet without simultaneous vestibular stimulation
Description
Evaluating hearing performance with the CVI based on speech perception in quiet measured with an aided consonant-nucleus-consonant word test, without simultaneous vestibular stimulation
Time Frame
Through the full trial period, until 5 years after implantation
Title
Interaction between vestibular and cochlear stimulation on speech perception in quiet
Description
Evaluating hearing performance with the CVI based on speech perception in quiet while simultaneously providing vestibular stimulation, measured with an aided consonant-nucleus-consonant word test. The influence of each vestibular stimulation algorithm will be evaluated separately.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
Speech perception with CVI in noise without simultaneous vestibular stimulation
Description
Evaluating hearing performance with the CVI based on speech perception in noise measured with a sentence speech In noise test, without simultaneous vestibular stimulation
Time Frame
Through the full trial period, until 5 years after implantation
Title
Change in otolith function due to CVI implantation
Description
Evaluating the influence of CVI implantation on otolith function based on cVEMP and oVEMP responses post-operatively, comparing with the pre-operative situation.
Time Frame
preoperatively and 1 month postoperatively
Title
Vestibular and cochlear electrode location
Description
Evaluating the location and potential migration of the vestibular and cochlear electrodes of the CVI with cone-beam CT scans- of the mastoid.
Time Frame
Through the full trial period, until 5 years after implantation
Secondary Outcome Measure Information:
Title
Characterization of study population on perceived dizziness
Description
Characterizing the study population based on their perceived dizziness and the related handicap measured with the Dizziness Handicap Inventory.
Time Frame
Measured pre-operatively and directly before the start of the VI stimulation period
Title
Characterization of study population on perceived risk of falling
Description
Characterizing the study population based on their perceived risk of falling measured with the Falls Efficacy Scale-International
Time Frame
Measured pre-operatively and directly before the start of the VI stimulation period
Title
Characterization of study population on perceived severity of oscillopsia
Description
Characterizing the study population based on their perceived severity of oscillopsia measured with the Oscillopsia Severity Questionnaire
Time Frame
Measured pre-operatively and directly before the start of the VI stimulation period
Title
Subjective hearing performance of the CVI
Description
Evaluating the subjective hearing performance of the CVI measured with the Speech and Spatial Qualities of hearing scale-12
Time Frame
Yearly evaluation through the full trial period, until 5 years after implantation
Title
Effect of CVI implantation on tinnitus burden
Description
Evaluating the influence of CVI implantation on the subjective severity and burden of tinnitus measured with the Tinnitus Questionnaire
Time Frame
Pre-operatively and 1 month postoperatively
Title
Characterization of study population on perceived health-related quality of life
Description
Characterizing the study population based on their perceived health-related quality of life measured with the Health Utility Index - 3
Time Frame
Measured pre-operatively and directly before the start of the VI stimulation period
Title
Evaluating the influence of receiving and using a CVI on quality of life
Description
Evaluating the influence of the different stages of receiving and using a CVI on quality of life measured with the EuroQOL 5 Dimensional questionnaire. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on quality of life
Time Frame
Through the full trial period, until 5 years after implantation
Title
Evaluating the influence of receiving and using a CVI on capabilities in life
Description
Evaluating the influence of the different stages of receiving and using a CVI on capabilities in life measured with the ICEPOP Capability measure for adults. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on quality of life.
Time Frame
Through the full trial period, until 5 years after implantation
Title
Evaluating the influence of receiving and using a CVI on anxiety and depression
Description
Evaluating the influence of the different stages of receiving and using a CVI on anxiety and depression measured with the Hospital Anxiety and Depression Scale. Aimed at separating CI-only use and full CVI use throughout the trial to get an accurate assessment of the influence vestibulo-cochlear electrical stimulation (via the CVI) can have on these aspects.
Time Frame
Through the full trial period, until 5 years after implantation
Title
Evaluating the daily experience with vestibular stimulation
Description
A self-developed visual-analog scale-based list of questions for evaluating the participant's experience with the CVI on a daily basis during the prolonged stimulation period.
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation
Title
Characterizing the participant's experience with vestibular stimulation
Description
Semi-standardized interviews for in-depth qualitative analysis of the participant's experience with receiving vestibular stimulation (via the CVI)
Time Frame
Through each 4-day VI stimulation period, within 2 years after implantation

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion criteria: Chronic vestibular syndrome being presented by disabling symptoms of postural imbalance and/or impaired image stabilization (e.g. oscillopsia) Reduced or absent bilateral VOR function based on at least one of the tests below meeting criteria A, with the other tests meeting criteria B: Criteria A: Caloric response: Each side ≤6°/sec, vHIT gain: Bilateral horizontal SCC ≤ 0.6 AND Bilateral vertical SCC <0.7, Rotatory chair gain: ≤ 0.1 (0.1 Hz) Criteria B: Caloric response: Each side <10°/sec, vHIT gain: 2 Bilateral SCC <0.7, Rotatory chair gain: ≤ 0.2 (0.1 Hz) Onset of bilateral vestibular loss after the age of 2 Vestibular dysfunction from a peripheral origin or idiopathic BV Patent vestibular end-organ (judged by CT) Vestibular function and symptoms have not recovered beyond inclusion criteria within 6 months from onset of symptoms including a 3 month rehabilitation program off vestibular suppressant medications Meeting CI-candidacy in ear to implant with CVI Agreed to receive a MED-EL CVI implant with MED-EL sound processor Capacitated adults ≥ 18 years Proficient speaker of the Dutch language No contra-indications for CVI surgery Active participation in the trial related procedures such as regular testing, the VI fitting period, the baseline testing day and three weeks of intensive VI rehabilitation and testing in the study center (MUMC+) including an exercise regimen Agreed not to swim or to use or operate vehicles, heavy machinery, powered tools or other devices that could pose a threat to the participant, to others, or to property throughout the period of VI activation and until at least 1 day after VI deactivation Remark: Patients who qualify to receive a regular CI as part of standard clinical care will have a preferential position to be included in the trial. Exclusion Criteria: Signs of central vestibular/cochlear dysfunction or structural vestibular/cochlear nerve pathology (judged by physical examination / MRI) Clear signs of structural nerve pathology or indications of improperly functioning vestibular/cochlear nerves Requirement for electric-acoustic activation of the CI part (e.g. "hybrid" processor) prior to completion of the prolonged VI stimulation period Having received a cochlear implant earlier on the side to implant (e.g. explantation/reimplantation) Having received a cochlear implant from another brand than MED-EL in the other ear (bilateral implantation with different brands is not supported) Unwillingness to stop the use of antihistamines which might suppress VOR responses (e.g. cinnarizine) in the period of 1 month before until after each measurement point. Pre-lingual onset of bilateral profound deafness (< 4 years of age) Active participation in another prospective clinical trial Pregnancy or having plans to become pregnant at the time of imaging or during the VI trial Orthopedic, ocular, neurologic or other non-vestibular pathologic conditions of sufficient severity to confound vestibular function tests used in the study Current psychological or psychiatric disorders that could significantly interfere with the use or evaluation of VI stimulation Physical or non-physical contraindications for MRI or CT imaging prior to surgery Making chronic use of psychiatric medication which suppresses VOR responses (e.g. SSRI's, benzodiazepines) Significant dental problems which prohibit the stable use of a 'bite bar' (used as calibration reference for the gyroscope functionality of the CVI) Any medical condition, judged by the research team, that is likely to interfere with a study candidate's participation in the study
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Raymond van de Berg, MD, PhD
Phone
+31 43 387 54 00
Email
contact@vestibularimplant.com
First Name & Middle Initial & Last Name or Official Title & Degree
Elke MJ Devocht, MSc
Phone
+31 43 387 54 00
Email
contact@vestibularimplant.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Raymond van de Berg, MD, PhD
Organizational Affiliation
Maastricht UMC
Official's Role
Principal Investigator
Facility Information:
Facility Name
Maastricht UMC+
City
Maastricht
State/Province
Limburg
ZIP/Postal Code
6229 HX
Country
Netherlands
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Raymond van de Berg, MD, PhD
Phone
+31 43 387 54 00
Email
contact@vestibularimplant.com
First Name & Middle Initial & Last Name & Degree
Elke MJ Devocht, PhD
Phone
+31 43 387 54 00
Email
contact@vestibularimplant.com

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Pseudonymized data will be shared via scientific publications in open source, peer-reviewed journals. Pseudonymized data will also be available upon request (see below).
IPD Sharing Time Frame
Data will be available 6 months after completion of the prolonged stimulation period
IPD Sharing Access Criteria
A data agreement including research proposal needs to be signed prior to data sharing.
Citations:
PubMed Identifier
17561766
Citation
Wall C 3rd, Kos MI, Guyot JP. Eye movements in response to electric stimulation of the human posterior ampullary nerve. Ann Otol Rhinol Laryngol. 2007 May;116(5):369-74. doi: 10.1177/000348940711600509.
Results Reference
background
PubMed Identifier
21991260
Citation
van de Berg R, Guinand N, Stokroos RJ, Guyot JP, Kingma H. The vestibular implant: quo vadis? Front Neurol. 2011 Aug 11;2:47. doi: 10.3389/fneur.2011.00047. eCollection 2011.
Results Reference
background
PubMed Identifier
21510138
Citation
Guyot JP, Sigrist A, Pelizzone M, Kos MI. Adaptation to steady-state electrical stimulation of the vestibular system in humans. Ann Otol Rhinol Laryngol. 2011 Mar;120(3):143-9. doi: 10.1177/000348941112000301.
Results Reference
background
PubMed Identifier
22363317
Citation
van de Berg R, Guinand N, Guyot JP, Kingma H, Stokroos RJ. The modified ampullar approach for vestibular implant surgery: feasibility and its first application in a human with a long-term vestibular loss. Front Neurol. 2012 Feb 20;3:18. doi: 10.3389/fneur.2012.00018. eCollection 2012.
Results Reference
background
PubMed Identifier
24808890
Citation
Perez Fornos A, Guinand N, van de Berg R, Stokroos R, Micera S, Kingma H, Pelizzone M, Guyot JP. Artificial balance: restoration of the vestibulo-ocular reflex in humans with a prototype vestibular neuroprosthesis. Front Neurol. 2014 Apr 29;5:66. doi: 10.3389/fneur.2014.00066. eCollection 2014.
Results Reference
background
PubMed Identifier
25073124
Citation
Nguyen TA, Ranieri M, DiGiovanna J, Peter O, Genovese V, Perez Fornos A, Micera S. A real-time research platform to study vestibular implants with gyroscopic inputs in vestibular deficient subjects. IEEE Trans Biomed Circuits Syst. 2014 Aug;8(4):474-84. doi: 10.1109/TBCAS.2013.2290089.
Results Reference
background
PubMed Identifier
24869447
Citation
Pelizzone M, Fornos AP, Guinand N, van de Berg R, Kos I, Stokroos R, Kingma H, Guyot JP. First functional rehabilitation via vestibular implants. Cochlear Implants Int. 2014 May;15 Suppl 1:S62-4. doi: 10.1179/1467010014Z.000000000165. No abstract available.
Results Reference
background
PubMed Identifier
26366566
Citation
van de Berg R, van Tilburg M, Kingma H. Bilateral Vestibular Hypofunction: Challenges in Establishing the Diagnosis in Adults. ORL J Otorhinolaryngol Relat Spec. 2015;77(4):197-218. doi: 10.1159/000433549. Epub 2015 Sep 15.
Results Reference
background
PubMed Identifier
25653601
Citation
van de Berg R, Guinand N, Nguyen TA, Ranieri M, Cavuscens S, Guyot JP, Stokroos R, Kingma H, Perez-Fornos A. The vestibular implant: frequency-dependency of the electrically evoked vestibulo-ocular reflex in humans. Front Syst Neurosci. 2015 Jan 20;8:255. doi: 10.3389/fnsys.2014.00255. eCollection 2014.
Results Reference
background
PubMed Identifier
26367113
Citation
Guinand N, van de Berg R, Cavuscens S, Stokroos RJ, Ranieri M, Pelizzone M, Kingma H, Guyot JP, Perez-Fornos A. Vestibular Implants: 8 Years of Experience with Electrical Stimulation of the Vestibular Nerve in 11 Patients with Bilateral Vestibular Loss. ORL J Otorhinolaryngol Relat Spec. 2015;77(4):227-240. doi: 10.1159/000433554. Epub 2015 Sep 15.
Results Reference
background
PubMed Identifier
26737951
Citation
Guinand N, van de Berg R, Ranieri M, Cavuscens S, DiGiovanna J, Nguyen TA, Micera S, Stokroos R, Kingma H, Guyot JP, Perez Fornos A. Vestibular implants: Hope for improving the quality of life of patients with bilateral vestibular loss. Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:7192-5. doi: 10.1109/EMBC.2015.7320051.
Results Reference
background
PubMed Identifier
27396631
Citation
Nguyen TA, DiGiovanna J, Cavuscens S, Ranieri M, Guinand N, van de Berg R, Carpaneto J, Kingma H, Guyot JP, Micera S, Fornos AP. Characterization of pulse amplitude and pulse rate modulation for a human vestibular implant during acute electrical stimulation. J Neural Eng. 2016 Aug;13(4):046023. doi: 10.1088/1741-2560/13/4/046023. Epub 2016 Jul 11.
Results Reference
background
PubMed Identifier
27148528
Citation
DiGiovanna J, Nguyen TA, Guinand N, Perez-Fornos A, Micera S. Neural Network Model of Vestibular Nuclei Reaction to Onset of Vestibular Prosthetic Stimulation. Front Bioeng Biotechnol. 2016 Apr 20;4:34. doi: 10.3389/fbioe.2016.00034. eCollection 2016.
Results Reference
background
PubMed Identifier
27083882
Citation
Guyot JP, Perez Fornos A, Guinand N, van de Berg R, Stokroos R, Kingma H. Vestibular assistance systems: promises and challenges. J Neurol. 2016 Apr;263 Suppl 1:S30-5. doi: 10.1007/s00415-015-7922-1. Epub 2016 Apr 15.
Results Reference
background
PubMed Identifier
28066163
Citation
Guinand N, Van de Berg R, Cavuscens S, Stokroos R, Ranieri M, Pelizzone M, Kingma H, Guyot JP, Perez Fornos A. Restoring Visual Acuity in Dynamic Conditions with a Vestibular Implant. Front Neurosci. 2016 Dec 22;10:577. doi: 10.3389/fnins.2016.00577. eCollection 2016.
Results Reference
background
PubMed Identifier
29209162
Citation
Nguyen TAK, Cavuscens S, Ranieri M, Schwarz K, Guinand N, van de Berg R, van den Boogert T, Lucieer F, van Hoof M, Guyot JP, Kingma H, Micera S, Perez Fornos A. Characterization of Cochlear, Vestibular and Cochlear-Vestibular Electrically Evoked Compound Action Potentials in Patients with a Vestibulo-Cochlear Implant. Front Neurosci. 2017 Nov 21;11:645. doi: 10.3389/fnins.2017.00645. eCollection 2017.
Results Reference
background
PubMed Identifier
29184530
Citation
Guinand N, Van de Berg R, Cavuscens S, Ranieri M, Schneider E, Lucieer F, Kingma H, Guyot JP, Perez Fornos A. The Video Head Impulse Test to Assess the Efficacy of Vestibular Implants in Humans. Front Neurol. 2017 Nov 14;8:600. doi: 10.3389/fneur.2017.00600. eCollection 2017.
Results Reference
background
PubMed Identifier
29312107
Citation
van de Berg R, Guinand N, Ranieri M, Cavuscens S, Khoa Nguyen TA, Guyot JP, Lucieer F, Starkov D, Kingma H, van Hoof M, Perez-Fornos A. The Vestibular Implant Input Interacts with Residual Natural Function. Front Neurol. 2017 Dec 14;8:644. doi: 10.3389/fneur.2017.00644. eCollection 2017.
Results Reference
background
PubMed Identifier
28387690
Citation
Perez Fornos A, Cavuscens S, Ranieri M, van de Berg R, Stokroos R, Kingma H, Guyot JP, Guinand N. The vestibular implant: A probe in orbit around the human balance system. J Vestib Res. 2017;27(1):51-61. doi: 10.3233/VES-170604.
Results Reference
background
PubMed Identifier
28443060
Citation
van de Berg R, Lucieer F, Guinand N, van Tongeren J, George E, Guyot JP, Kingma H, van Hoof M, Temel Y, van Overbeeke J, Perez-Fornos A, Stokroos R. The Vestibular Implant: Hearing Preservation during Intralabyrinthine Electrode Insertion-A Case Report. Front Neurol. 2017 Apr 10;8:137. doi: 10.3389/fneur.2017.00137. eCollection 2017.
Results Reference
background
PubMed Identifier
31396689
Citation
Fornos AP, van de Berg R, Armand S, Cavuscens S, Ranieri M, Cretallaz C, Kingma H, Guyot JP, Guinand N. Cervical myogenic potentials and controlled postural responses elicited by a prototype vestibular implant. J Neurol. 2019 Sep;266(Suppl 1):33-41. doi: 10.1007/s00415-019-09491-x. Epub 2019 Aug 8.
Results Reference
background
PubMed Identifier
30566413
Citation
Guyot JP, Perez Fornos A. Milestones in the development of a vestibular implant. Curr Opin Neurol. 2019 Feb;32(1):145-153. doi: 10.1097/WCO.0000000000000639.
Results Reference
background
PubMed Identifier
31661687
Citation
Starkov D, Guinand N, Lucieer F, Ranieri M, Cavuscens S, Pleshkov M, Guyot JP, Kingma H, Ramat S, Perez-Fornos A, van de Berg R. Restoring the High-Frequency Dynamic Visual Acuity with a Vestibular Implant Prototype in Humans. Audiol Neurootol. 2020;25(1-2):91-95. doi: 10.1159/000503677. Epub 2019 Oct 29.
Results Reference
background
PubMed Identifier
31225823
Citation
Seppen BF, van Hoof M, Stultiens JJA, van den Boogert T, Guinand N, Guyot JP, Kingma H, Fornos AP, Handschuh S, Glueckert R, Jacobi L, Schrott-Fischer A, Johnson Chacko L, van de Berg R. Drafting a Surgical Procedure Using a Computational Anatomy Driven Approach for Precise, Robust, and Safe Vestibular Neuroprosthesis Placement-When One Size Does Not Fit All. Otol Neurotol. 2019 Jun;40(5S Suppl 1):S51-S58. doi: 10.1097/MAO.0000000000002211.
Results Reference
background
PubMed Identifier
31677739
Citation
Stultiens JJA, Postma AA, Guinand N, Perez Fornos A, Kingma H, van de Berg R. Vestibular Implantation and the Feasibility of Fluoroscopy-Guided Electrode Insertion. Otolaryngol Clin North Am. 2020 Feb;53(1):115-126. doi: 10.1016/j.otc.2019.09.006. Epub 2019 Oct 31.
Results Reference
background
PubMed Identifier
32213673
Citation
Cretallaz C, Boutabla A, Cavuscens S, Ranieri M, Nguyen TAK, Kingma H, Van De Berg R, Guinand N, Perez Fornos A. Influence of systematic variations of the stimulation profile on responses evoked with a vestibular implant prototype in humans. J Neural Eng. 2020 Jun 12;17(3):036027. doi: 10.1088/1741-2552/ab8342.
Results Reference
background
PubMed Identifier
32651339
Citation
van de Berg R, Ramos A, van Rompaey V, Bisdorff A, Perez-Fornos A, Rubinstein JT, Phillips JO, Strupp M, Della Santina CC, Guinand N. The vestibular implant: Opinion statement on implantation criteria for research. J Vestib Res. 2020;30(3):213-223. doi: 10.3233/VES-200701. Erratum In: J Vestib Res. 2023;33(1):85.
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