Optimization and Validation of Electric Acoustic Stimulation (EAS) Mapping as a Function of Residual Hearing After CI-Implantation

Starting soon · Not applicable

Conditions studied: Fitting Methods by EAS Patients

In brief

The aim of this clinical study is to investigate how the fitting of an EAS (electrical acoustic stimulation) based on electrocochleography (ECochG) thresholds compares to fitting based on pure tone audiogram thresholds in terms of speech intelligibility in quiet and noise. The personal feedback from the study participants regarding the question of better fitting and the resulting sound quality should also be included in the analysis.

Key facts

Study ID

NCT07476079

Run by

Luzerner Kantonsspital

People needed

12

Starts

2026-05-01

Expected to finish

2027-11-01

Last updated by the study team

2026-04-24

Who can join

Age: 18 and older, up to 85. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients aged between 18-85 years.
• Cochlear Implant (CI) candidates with measurable post-operative low-frequency residual hearing (125Hz <65dB, 250Hz <65dB, 500Hz <65dB).
• Only patients with MED-EL EAS.
• Written informed consent must be obtained prior to study start.

You may not qualify if…

• Patients with cognitive impairments who, as a result, lack the capacity to make decisions.
• Uncooperative patients regarding pure tone audiometry thresholds measurements.
• Morbus Menière or intracochlear/ vestibular schwannoma

Full record on ClinicalTrials.gov

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