Clinical Trial

Exploration of the Functional Effect of Modified Gain Precalculation on Soft Speech Intelligibility

Terminated
View on ClinicalTrials.gov →
Why the trial stopped
Despite heavy recruiting efforts not enough participants could be found
Summary
An exploratory investigation of gain precalculation principles in CE-labelled Sonova brand hearing instruments (e.g. Phonak hearing instruments) is intended to be conducted on hearing impaired participants. These gain precalculation principles are enabled by respective hearing instrument technologies and hearing instrument algorithms. The aim of the study is to investigate and assess strength and weaknesses of these gain precalculation principles in terms of speech intelligibility 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.
Protocol Amendment History 8 changes
critical Trial terminated 2026-07-28
critical Trial terminated: Despite heavy recruiting efforts not enough participants could be found 2026-07-28
notable Enrollment reduced: 16 -> 14 participants 2026-07-28
notable Primary completion pushed: 2026-05-30 -> 2026-07-22 2026-07-28
minor Completion pushed: 2026-05-30 -> 2026-07-22 2026-07-28
critical Recruitment opened 2026-04-25
notable Primary completion pushed: 2026-04-30 -> 2026-05-30 2026-04-25
minor Completion pushed: 2026-04-30 -> 2026-05-30 2026-04-25
Trial Details
NCT Number NCT07388784
Lead Sponsor Sebastian Griepentrog
Conditions Hearing Loss
Enrollment 14 participants
Start Date 2026-04-20
Primary Completion 2026-07-22 (estimated)
Study Completion 2026-07-22 (estimated)
Updated on ClinicalTrials.gov 2026-07-27