Investigating the DNN Noise Reduction Feature in Phonak Hearing Aids Using Ecological Momentary Assessment

NCT07526428 | Terminated FDA Device

• 1 other identifier: SRF-36296
• Study Type: interventional
• Target: 21
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this interventional study is to evaluate the DNN Noise reduction feature of Phonak hearing aids in adults with moderate to moderate severe hearing loss. The main questions it aims to answer are: Do participants correctly identify significantly more words on the AZBio Sentence Test when using Phonak's DNN NR feature than when using Competitor device A in a lab setting? Do participants subjectively rate the speech clarity, ease of listening, and listening confidence higher when using Phonak's DNN feature than when using Competitor device A in both a lab setting and a real-world cafe setting? Do participants have an overall preference for the Phonak device over the Competitor device A in a real-world cafe setting? Participants will be fit with both the Phonak device and a Competitor device A in the lab. They will be given the AZBio Sentence test and repeat as many words as they can in a simulated noisy environment. Following the lab visit, participants will meet in a group with three other conversation partners in a real-world setting and asked to complete subjective questionnaires during the visit.

Conditions

Hearing Loss

Outcome Measures

Primary Outcomes (1)

• AZBio Sentence Test

  A validated speech perception test consisting of 25 different lists of sentences. Sentences are presented via a loudspeaker at a pre-determined level and the number of words correctly repeated are calculated into a percenteage. The higher the percentage, the better the participant's speech perception.

  Day 1 of study

Secondary Outcomes (1)

• Composite Questionnaire

  Days 1 and 2 of study

Study Arms (2)

Participants fit and tested with the Phonak device first, then the Competitor device A.

EXPERIMENTAL

Participants that are tested first with the Phonak device, and then with the Competitor device A.

Device: Phonak Audeo Infinio Hearing Aid; Device: Competitor Device A

Participants fit and tested with Competitor device A first, then with Phonak device.

EXPERIMENTAL

Participants that are tested first with the Competitor device A, then with the Phonak device.

Device: Phonak Audeo Infinio Hearing Aid; Device: Competitor Device A

Interventions

Phonak Audeo Infinio Hearing Aid DEVICE

Phonak Audeo Infinio RIC

Participants fit and tested with Competitor device A first, then with Phonak device.; Participants fit and tested with the Phonak device first, then the Competitor device A.

Competitor Device A DEVICE

Competitor Device A

Participants fit and tested with Competitor device A first, then with Phonak device.; Participants fit and tested with the Phonak device first, then the Competitor device A.

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Adults (18+ years old) with audiograms within fitting range of the hearing aid (e.g., moderate to severe sensorineural hearing losses {N3-N5}) and with hearing aid experience will be recruit-ed for this study.
• Ability to fill out questionnaires
• No known cognitive issues.
• Fluent in English, ability to read and write in English.
• Informed consent documented by signature.
• Willingness to wear binaural receiver-in-canal (RIC) devices with domes.
• Willingness to meet up outside of the lab at a local café with two other consented research participants.

You may not qualify if:

• Contraindications to medical device (MD) in this study: known hypersensitivity or allergy to investigational product/domes.
• Limited mobility/not being able to come to scheduled appoint-ments.
• Limited ability to describe listening impressions/experiences and the use of the hearing aid.
• Known psychological disorders.

Sponsors & Collaborators

• Sonova AG: lead

Study Sites (1)

Phonak Audiology Research Center

Aurora, Illinois, 60504-7940, United States

Location

MeSH Terms

Conditions

Hearing Loss

Condition Hierarchy (Ancestors)

Hearing Disorders; Ear Diseases; Otorhinolaryngologic Diseases; Sensation Disorders; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Masking Details: Participants will be blinded as to which hearing aid they are wearing during all of the testing.
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 6, 2026
• First Posted: April 13, 2026
• Study Start: April 9, 2026
• Primary Completion: April 19, 2026
• Study Completion: April 19, 2026
• Last Updated: May 29, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)