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

NCT07476079 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 12

Last updated 2026-04-24

No results posted yet for this study

Summary

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.

Conditions

  • Fitting Methods by EAS Patients

Interventions

OTHER

The objective fitting method of the EAS based on the thresholds of electrocochleography is the intervention of our study.

Measured ECochG thresholds will be used in the initial EAS fitting in period 1 for sequence B. For sequence A, the ECochG-based EAS fitting (with up-to-date ECochG thresholds) will take place three months later at the beginning of period 2.

OTHER

The subjective adjustment of an EAS based on thresholds from the pure tone audiogram.

The control intervention is the subjective EAS fitting based on PTAs. This is provided to sequence A at the beginning of period 1 baseline and to sequence B at the beginning of period 2.

Sponsors & Collaborators

  • MED-EL Elektromedizinische Geräte GesmbH

    collaborator INDUSTRY

  • Luzerner Kantonsspital

    lead OTHER

Principal Investigators

  • Armina Kreuzer, Dr. · Luzerner Kantonsspital

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-01
Primary Completion
2027-11-01
Completion
2027-11-01

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07476079 on ClinicalTrials.gov