- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04610450
The Performance of a Robot-assisted Minimally Invasive Direct Cochlear Access for Cochlear Implantation
November 23, 2022 updated by: University Hospital Inselspital, Berne
The cochlear implant is a neural prosthesis and has been the gold standard treatment for severe to profound sensorineural hearing loss over several decades.
The surgical procedure for cochlear implantation 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 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 portions of the mastoid bone through a 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 performance of robotic cochlear implantation surgery.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
3
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Bern, Switzerland, 3010
- Inselspital, Bern University Hospital
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subjects scheduled for CI surgery according to clinical routine
- Subjects who will receive a cochlear implant
- 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
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: RCI-BE-10
Robot assisted cochlear implant surgery.
|
Robotic system for otological procedures
Otological surgical planning software
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Relative ratio of successful electrode array insertions through the drilled direct cochlear access with the HEARO procedure to the total HEARO procedures.
Time Frame: day 0
|
The primary outcome measure of this study is to explore the relative ratio of the successful electrode array insertions into the cochlea through the drilled direct cochlear access with the HEARO procedure to the total HEARO procedures.
Aborted or converted procedures count as procedure in which insertion through the direct cochlea access was not possible.
The results will be expressed in relative numbers and in percentage.
|
day 0
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Electrode array insertion outcome
Time Frame: day 0
|
The angular insertion depth (in degrees) will be evaluated.
|
day 0
|
Electrode array insertion outcome
Time Frame: day 0
|
The number of inserted electrode contacts will be evaluated.
|
day 0
|
Electrode array insertion outcome
Time Frame: day 0
|
The surgical outcome (categories: nominal, tip-fold over or scalar deviation) will be evaluated.
|
day 0
|
Insertion depth prediction accuracy
Time Frame: day 0
|
The insertion depth prediction accuracy as the difference between the estimated insertion depth of the electrode at the planning and the actual insertion depth.
|
day 0
|
Absolute angular accuracy of the drilled tunnel access
Time Frame: day 0
|
The absolute in-plane and out-plane accuracy of the drilled tunnel is measured as the angular deviation between the planned trajectory in-plane and out-plane angles and the actual drilled angles from the intra-op image.
|
day 0
|
Absolute lateral accuracy of the drilled tunnel at the facial recess
Time Frame: day 0
|
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.
|
day 0
|
Absolute lateral accuracy of the drilled tunnel at the target
Time Frame: day 0
|
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.
|
day 0
|
Ratio of the round window membrane preservation during the inner ear access
Time Frame: day 0
|
The ratio of the visibility of round window membrane surface at the robotic inner ear access by visual inspection.
This will be assessed as subjective evaluation by the surgeon.
|
day 0
|
Timing of the HEARO procedure
Time Frame: day 0
|
The timing of the different steps of the HEARO procedure will be recorded.
|
day 0
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Marco Caversaccio, Prof. Dr., University hospital Bern (Inselspital)
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
April 26, 2021
Primary Completion (Actual)
November 23, 2022
Study Completion (Actual)
November 23, 2022
Study Registration Dates
First Submitted
October 22, 2020
First Submitted That Met QC Criteria
October 29, 2020
First Posted (Actual)
October 30, 2020
Study Record Updates
Last Update Posted (Actual)
November 25, 2022
Last Update Submitted That Met QC Criteria
November 23, 2022
Last Verified
May 1, 2022
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- RCI-NEXT
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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.
Clinical Trials on Sensorineural Hearing Loss
-
Oticon MedicalNot yet recruitingSensorineural Hearing Loss, Bilateral | Sensorineural Hearing Loss, Severe | Sensorineural Hearing Loss, Profound
-
Otologics LLCUnknownMixed Conductive and Sensorineural Hearing Loss, Bilateral
-
CochlearCompletedUnilateral Mixed Conductive and Sensorineural Hearing Loss (Diagnosis) | Sensorineural Hearing Loss, Unilateral With Normal Hearing on the Contralateral SideCanada
-
University College, LondonUnknownSensorineural Hearing Loss | Sensory Hearing Loss | Sensorineural Hearing Loss in Left Ear | Sensorineural Hearing Loss in Right Ear | Sensorineural HearingUnited Kingdom
-
Fundación Pública Andaluza para la gestión de la...RecruitingBilateral Sensorineural Hearing Loss | Unilateral Sensorineural Hearing LossSpain
-
University Hospital, AntwerpCochlearRecruitingHearing Loss, Unilateral | Cochlear Implants | Hearing Loss, Sensorineural, Severe | Hearing Loss, Sensorineural, Bilateral | Hearing Loss, Sensorineural, ProfoundBelgium
-
Auris Medical, Inc.TerminatedHearing Loss, Idiopathic Sudden SensorineuralUnited States, Korea, Republic of, Canada
-
Manchester University NHS Foundation TrustUniversity of ManchesterCompletedCochlear Hearing Loss | Sensorineural Hearing Loss, BilateralUnited Kingdom
-
Cochlear Bone Anchored SolutionsCompletedSingle Sided Sensorineural Deafness | Mixed Hearing Loss, UnilateralDenmark, Spain, United Kingdom, Belgium
-
MED-EL Elektromedizinische Geräte GesmbHCompletedSensorineural Hearing Loss, BilateralFrance
Clinical Trials on HEARO
-
Prof. Vedat TopsakalCompletedSensorineural Hearing LossBelgium
-
Prof. Vedat TopsakalUnknownSensorineural Hearing LossBelgium
-
Cordio MedicalRecruitingHeart FailureUnited States, Israel
-
Cordio MedicalRecruitingChronic Heart FailureUnited States, Israel
-
Medical University of ViennaMED-EL Elektromedizinische Geräte GesmbHRecruiting