Clinical trial No longer in our active list Interventional Ages 18 and up

Evaluating a new fitting method for cochlear implants using robotic surgery

Official title: Audiological and Quality of Life Outcomes of Anatomy Based Fitting in Patients Implanted by Robot Assisted Cochlear Implant Surgery (RACIS)

Run by Universitair Ziekenhuis Brussel · NCT05369598 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing a new way to fit cochlear implants using advanced imaging to see if it helps people with severe hearing loss hear better after robotic surgery.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorUniversitair Ziekenhuis Brussel
Academic / other
Locations1 site (Brussel)
Trial IDNCT05369598 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with post-lingual severe to profound sensorineural hearing loss who have received a MED-EL cochlear implant via robotic surgery.

Probably not a fit

Patients who do not meet the eligibility criteria, such as those with pre-lingual hearing loss or those not implanted with the specified MED-EL devices, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates a novel fitting strategy for cochlear implants (CIs) that utilizes post-operative CT scans to create a personalized frequency-band distribution. The aim is to improve sound perception for patients with severe to profound sensorineural hearing loss who have undergone Robot Assisted Cochlear Implant Surgery (RACIS). Participants will be fitted with either a standard clinical approach or the new anatomy-based fitting (ABF) method, allowing for a comparison of audiological and quality of life outcomes. The study focuses on patients implanted with specific MED-EL cochlear implants and audio processors.

Why it matters

Potential benefit: If successful, this approach could lead to improved hearing outcomes and quality of life for cochlear implant recipients.

How similar studies have gone: While this specific approach is novel, similar studies exploring personalized fitting strategies for cochlear implants have shown promising results.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years
* Post-lingual onset of severe to profound sensory-neural hearing loss in the implanted ear(s)
* Subject implanted by Robot Assisted Cochlear Implant Surgery (RACIS)
* Subject implanted with MED-EL cochlear implant(s) with Flex28, Flex 26 or FlexSoft electrode to obtain maximum cochlear coverage
* Subject planned to receive a MED-EL SONNET 2 or RONDO 3 audio processor on the newly implanted side
* Subject is either a user with unilateral implantation, bilateral implantation or a bimodal CI user (unilateral CI user with contralateral ear adequately fitted with a hearing aid)
* Pre- operative and post-operative CT scan of the temporal bone available
* Pre-operative result of pure-tone audiometry, speech test in quiet and in noise available
* Audio processor not yet activated on the newly implanted side
* Minimum of 10 active channels can be activated
* Fluent in the language of the test centre (Dutch or French)
* Signed and dated ICF before the start of any study-specific procedure

Exclusion Criteria:

* Subject is a Single-Sided Deafness (SSD) CI user
* Subject is an Electric Acoustic Stimulation (EAS) user (with an EAS audio processor)
* Lack of compliance with any inclusion criteria
* Anything that, in the opinion of the Investigator, would place the subject at increased risk or preclude the subject's full compliance with or completion of the study

Where it's running

  • UZ Brussel
    Brussel, Belgium
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.