- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04777565
Study of a Minimally Invasive Cochlear Access for Cochlear Implantation Via a Robotic Procedure
The Efficacy of a Minimally Invasive Direct Cochlear Access Via the HEARO Procedure
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The cochlear implant (CI) is a neural prothesis and has been the gold standard treatment for severe to profound sensorineural hearing loss over several decades. The surgical procedure for cochlear implantation surgery aims to atraumatically insert the electrode array of the cochlear implant into the cochlea. However, due to the location of the cochlea inside the skull, the surgeon is required to initially create an access from the surface of the temporal bone to the cochlea (inner ear). In conventional methods, this access is acquired by removal of large portions of the mastoid bone through a wide mastoidectomy and posterior tympanotomy. The outcome and success of the conventional procedure varies due to mainly two factors: surgeon skill and subject anatomical variation.
To overcome these variables toward a more consistent and less invasive cochlear implantation surgery, the development of robotic and image guided cochlear implantation has taken place.
This study primarily aims to explore the efficacy of the HEARO robotic cochlear implantation surgery.
Primary Objective
The primary objective of this study is to:
• explore the efficacy of a minimally invasive direct cochlear access via the HEARO procedure.
Secondary Objectives
The secondary objectives of this study are to:
- explore the safety of a minimally invasive direct cochlear access via the HEARO procedure.
- exploratively evaluate the electrode array insertion outcomes through the direct tunnel access.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Vincent Péan, PhD
- Phone Number: (+33)603592974
- Email: vincent.pean@medel.com
Study Locations
-
-
-
Montpellier, France, 34295
- CHU Montpellier
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subjects scheduled for CI surgery according to clinical routine
- Subjects who will receive a cochlear implant of the MED-EL portfolio
- Signed and dated informed consent form
Exclusion Criteria:
- Lack of compliance with any inclusion criteria
- Age under 18 years
- Pregnancy
- Distance of the planned trajectory to the facial nerve is < 0.4 mm as per screening CT scan
- Distance of the planned trajectory to the chorda tympani is < 0.3 mm as per screening CT scan
- A safe inner ear access cannot be planned for preservation of RW membrane and cochlear structures
- Individuals where image guidance or robotic procedures are not indicated
- Individuals who have known allergy to components of the cochlear implant
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: CI surgery
cochlear implant surgery
|
Cochlear implant surgery with HEARO procedure
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Electrode array insertion
Time Frame: During surgery
|
• Relative ratio of successful electrode array insertions through the drilled direct cochlear access with the HEARO procedure to the total HEARO procedures (i.e.
proportion of successful insertions with the procedure out of the total number of patients included in the study).
|
During surgery
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Electrode array insertion outcome (efficacy)
Time Frame: During surgery
|
• The angular insertion depth will be evaluated.
|
During surgery
|
Electrode array insertion outcome (efficacy)
Time Frame: During surgery
|
• The number of contacts inserted will be evaluated.
|
During surgery
|
Electrode array insertion outcome (efficacy)
Time Frame: During surgery
|
• The tip-fold over will be evaluated.
|
During surgery
|
Electrode array insertion outcome (efficacy)
Time Frame: During surgery
|
• The scalar deviation will be evaluated.
|
During surgery
|
Insertion depth prediction accuracy (efficacy)
Time Frame: During surgery
|
• The insertion depth prediction accuracy as the difference between the estimated insertion depth of the electrode at the planning and the actual insertion depth.
|
During surgery
|
Absolute angular accuracy of the drilled tunnel access (safety)
Time Frame: During surgery
|
• The absolute lateral accuracy of the drilled tunnel to the facial nerve and chorda tympani is measured as the difference between the planned trajectory and the actual drilled trajectory distance.
|
During surgery
|
Absolute lateral accuracy of the drilled tunnel at the target (safety)
Time Frame: During surgery
|
• The absolute lateral accuracy of the drilled tunnel is measured as the distance between the planned target trajectory position and actual target of the drilled trajectory position.
|
During surgery
|
Ratio of the round window membrane preservation during the inner ear access (safety)
Time Frame: During surgery
|
• The ratio of the preserved round window (RW) membrane at the robotic inner ear access by visual inspection.
This will be assessed as subjective evaluation by the surgeon.
|
During surgery
|
Timing of the HEARO procedure
Time Frame: During surgery
|
• The timing of the different steps of the HEARO procedure will be recorded.
|
During surgery
|
Adverse events (safety)
Time Frame: During surgery
|
• Adverse events will be recorded
|
During surgery
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MED-EL_HEARO_french_study
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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