Exploration of the Functional Effect of Different Hearing Aid Noise Reduction Algorithms in an Ecologically Valid Conversational Situation
Key facts
- Who runs it
- Sebastian Griepentrog
- Where
- Stäfa, SwitzerlandSee the site
- Trial code
- Status
- Not yet recruiting
- People taking part
- 15 people, planned
- Started
- Aug 2025
- Planned end
- Sept 2025
- Type of study
- Interventional, 3 groupsOne group gets an existing treatment, for comparison.
- Treatments tested
- Hearing Aid with standard noise reduction (NR_1)
- Hearing Aid with NR_2
- Hearing Aid with NR_3
- Record updated
- 3 June 2025
Who can take part
- Age
- 18 years to 99 years
- Sex
- Women and men
- Healthy volunteers
- Cannot take part
The registry criteria, word for word
Show all 24 criteriaShow less
Who can take part
- Good written and spoken German language skills
- No suffering from any speech disorders
- Experienced hearing aid user (min. 6 months)
- Ability to stand and walk during the experiment
- Ability to fill in a questionnaire conscientiously
- Ability to produce a reliable hearing test result
- Ability to describe listening experiences/impressions
- The audiogram is in the fitting range of the hearing aid
- The audiogram is in the range of mild to moderate hearing losses (N2 - N4)
- Hearing loss in both ears
- Informed consent form
Who cannot take part
- Unwillingness to wear the investigational device during the investigational visits
- Active pacemaker implant
- Known hypersensitivity or allergy against synthetic materials
- Reported Parkinson's disease
- Contraindications to the medical device
- Unaidable hearing loss in one or both ears
- Acute tinnitus (in either one ear and occurrence for less than 3 months)
- Anatomical deformity of one or both ears
- Single-sided deafness
- Ear canals are too narrow to take ear impressions
- Ear canals are too narrow for the use of customized earpieces
- Uncomfortable loudness threshold less than 80 dB for at least one measured frequency
- Acute symptoms of vertigo or dizziness
Check if you might fit
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 99 years old?
Where in Switzerland
- Sonova AGStäfa, SwitzerlandContact: Sebastian GriepentrogNo longer taking part
About the trial
What the trial wants to find out
A methodical evaluation of sound changing principles in CE-labelled Sonova brand hearing instruments (e.g. Phonak hearing instruments) is intended to be conducted on hearing impaired participants. These sound changing principles are enabled by respective hearing instrument technologies and hearing instrument algorithms. The aim of the study is to investigate and asses strength and weaknesses of these novel sound changing principles in terms of hearing performance to determine their application in hearing instruments (Phase of development). Objective laboratory measurements as well as subjective ratings will be carried out. This will be a controlled, single blinded and randomized active comparator clinical evaluation which will be conducted mono centric at Sonova AG Headquarter based in Stäfa.
The 3 groups in the trial
- Hearing aid standard NR_1Existing treatment, for comparison
Hearing Aid with standard noise reduction (NR) serves as reference condition
Treatment: Hearing Aid with standard noise reduction (NR_1)
- Hearing Aid with NR_2Treatment being tested
NR\_2: Noise reduction principle 2
- Hearing Aid with NR_3Treatment being tested
NR\_3: Noise reduction principle 3
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Fit questions
- Built from NCT06992310, who can take part
- Record updated
- 3 June 2025