Safety and Performance of Ultra/Ultra 3D Cl With HiFocus SlimJ Electrode in Adults With Severe-to-profound Hearing Loss
Clinical Investigation of the Safety and Performance of HiResTM Ultra Cl HiFocusTM SlimJ Electrode (Cl-1600-05) and HiResTM Ultra 3D Cl HiFocusTM SlimJ Electrode (Cl-1601-05) (Ultra X) in Adults With Severe-to-profound Hearing Loss
1 other identifier
observational
30
1 country
3
Brief Summary
This is a prospective study designed to evaluate the safety and performance of the HiResTM Ultra Cl HiFocusTM SlimJ Electrode and HiResTM Ultra 3D Cl HiFocusTM SlimJ Electrode (Ultra X) under normal conditions of use as it is approved for this device. Participants receive interventions as part of routine medical care.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Jul 2021
Longer than P75 for all trials
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 6, 2021
CompletedFirst Posted
Study publicly available on registry
June 18, 2021
CompletedStudy Start
First participant enrolled
July 6, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2026
CompletedSeptember 29, 2025
September 1, 2025
4.8 years
June 6, 2021
September 24, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Speech recognition score (word score)
The primary efficacy objective is to demonstrate that mean monosyllabic word recognition score (Minimum Score 0 percent and maximum score 100 percent wheras 0 percent is worse and 100 is better) with the Ultra implants used in combination with a sound processor programmed with the latest fitting software is at least 20 percent better than the mean monosyllabic word score at baseline with conventional amplification in the same ear.
6 months
Analysis of participants with device failure
A maximum of one device failure that require device replacement during the first six months following device activation (activation approximately one to eight weeks after surgery).
6 months
Secondary Outcomes (1)
Analysis of Speech reception threshold
6 months
Other Outcomes (6)
Device fitting data
6 months
Device verification data
6 months
Professional feedback from the audiologist using the latest fitting software to program the latest processor
6 months
- +3 more other outcomes
Interventions
patients receive a cochlear implantation within clinical routine
Eligibility Criteria
30 adult subjects with valid and useable data
You may qualify if:
- No previous experience with any auditory implant
- years of age or older
- Postlingual onset of severe hearing loss (≥ 4 years of age)
- Limited benefit from appropriately fitted hearing aids, defined as scoring 60% or less in Freiburger Monosyllabic word test
- German language proficiency
- Willingness to participate in all scheduled procedures outlined in the protocol
You may not qualify if:
- Cochlear malformation or obstruction that would preclude full insertion of electrode array.
- Presence of additional disabilities that would prevent or interfere with participation in the required study procedures
- Medical or psychological conditions that contraindicate surgery or impact the ability to manage an implanted device or the study related procedures
- Evidence of central auditory lesion or compromised auditory nerve
- Pregnancy at time of surgery.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
HNO-Klinik Düsseldorf
Düsseldorf, Düsseldorf, 40225, Germany
Unfallkrankenhaus Berlin (UKB)
Berlin, State of Berlin, 12683, Germany
Westfälische Wilhelms-Universität Münster
Münster, Germany
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Arneborg Ernst, Prof. Dr.
Unfallkrankenhaus Berlin
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 6, 2021
First Posted
June 18, 2021
Study Start
July 6, 2021
Primary Completion
May 1, 2026
Study Completion
May 1, 2026
Last Updated
September 29, 2025
Record last verified: 2025-09