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Design Improvements With SONNET 3

Evaluating Design Improvements With SONNET 3 in Experienced Cochlear Implant Users

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06597747
Enrollment
20
Registered
2024-09-19
Start date
2024-12-16
Completion date
2025-07-31
Last updated
2025-12-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hearing Loss, Sensorineural

Brief summary

Measuring user-reported satisfaction with the latest behind-the-ear (BTE) audio processor model.

Detailed description

This prospective study will use a single-arm, repeated measures design with subjects serving as their own control. Participants will be experienced cochlear implant (CI) users wearing an approved BTE MED-EL audio processor. Participants will complete a take-home trial with the latest audio processor and then complete a custom questionnaire comparing design and usability to their existing audio processor.

Interventions

DEVICEAudio processor

MED-EL SONNET 3 (EAS) audio processor

Sponsors

Med-El Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
7 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Implanted with a MED-EL cochlear implant in at least one ear * ≥ 12 months since activation of the MED-EL audio processor * Consistently using a SONNET (EAS) or SONNET 2 (EAS) Audio Processor * Ability to complete all study procedures * Participant and parental (if applicable) commitment to comply with all study procedures for the duration of the study

Exclusion criteria

* Evidence that hearing loss is retrocochlear in origin * Unable to provide reliable feedback during cochlear implant programming * Skin or scalp condition precluding use of the study device * Unrealistic participant or parent (if applicable) motivation or expectations * Participants without a stable fitting map at enrollment e.g., due to changes in hearing, global health status, etc.

Design outcomes

Primary

MeasureTime frameDescription
Participants Reporting Improvement With SONNET 3 DesignMeasured 1 month after baselineThe proportion of participants reporting improvement in design aspects of SONNET 3 (EAS) on a user survey

Secondary

MeasureTime frameDescription
Audiologist Satisfaction RatingsMeasured after study completion, an average of 7.5 monthsScore on a 6-point Likert scale (1 = Strongly Disagree to 6 = Strongly Agree; higher scores indicate better outcomes). Values reported are the average scores on subsections of the audiologist survey.

Countries

United States

Participant flow

Participants by arm

ArmCount
SONNET 3 (EAS)
Participants complete a take-home trial using SONNET 3 (EAS) audio processor
20
Total20

Baseline characteristics

CharacteristicSONNET 3 (EAS)
Age, Continuous44.7 years
STANDARD_DEVIATION 24.1
Cochlear Implant Experience6.1 years
STANDARD_DEVIATION 5.3
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
12 Participants
Region of Enrollment
United States
20 Participants
Sex: Female, Male
Female
13 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
1 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

Participants Reporting Improvement With SONNET 3 Design

The proportion of participants reporting improvement in design aspects of SONNET 3 (EAS) on a user survey

Time frame: Measured 1 month after baseline

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SONNET 3 (EAS)Participants Reporting Improvement With SONNET 3 Design20 Participants
Secondary

Audiologist Satisfaction Ratings

Score on a 6-point Likert scale (1 = Strongly Disagree to 6 = Strongly Agree; higher scores indicate better outcomes). Values reported are the average scores on subsections of the audiologist survey.

Time frame: Measured after study completion, an average of 7.5 months

ArmMeasureGroupValue (MEAN)Dispersion
SONNET 3 (EAS)Audiologist Satisfaction RatingsSONNET 3 Design5.4 Score on 6-point Likert scaleStandard Deviation 0.3
SONNET 3 (EAS)Audiologist Satisfaction RatingsMAESTRO 115.5 Score on 6-point Likert scaleStandard Deviation 0.5

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026