NCT06951815

Brief Summary

This randomised controlled trial aims to test the effect of hearing adjustment using hearing aids, on the ease and effectiveness of communication such as listening effort, fatigue, and sentence recognition in noise, in addition to wellbeing and sleep; and to reveal the role of cognitive resources and sleep efficiency in this relationship.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 18, 2025

Completed
12 days until next milestone

First Posted

Study publicly available on registry

April 30, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2025

Completed
Last Updated

February 24, 2026

Status Verified

February 1, 2026

Enrollment Period

3 months

First QC Date

April 18, 2025

Last Update Submit

February 22, 2026

Conditions

Keywords

Cognitive resource depletionhearing handicaphearing losslistening effortmental fatigueease of communicationsleep efficiency

Outcome Measures

Primary Outcomes (1)

  • Subjective Listening-related Mental Fatigue

    Subjective listening-related mental fatigue is measured using the Visual Analogue Fatigue Scale at the end of a long listening exercise reworded to reflect listening-related fatigue. It is a one-item scale from 0 to 10, with higher scores indicating more fatigue. This will be measured before the intervention and 4 weeks after, and the analysis will focus on the post-intervention score while controlling for the pre-intervention score.

    From enrolment to the end of the trial at 6 weeks

Secondary Outcomes (1)

  • Subjective Listening-related Effort

    From enrolment to the end of the trial at 6 weeks

Other Outcomes (4)

  • Sentence Recognition in Noise

    From enrolment to the end of the trial at 6 weeks

  • Objective Cognitive Resource Availability

    From enrolment to the end of the trial at 6 weeks

  • Objective Sleep Efficiency

    From enrolment to the end of the trial at 6 weeks

  • +1 more other outcomes

Study Arms (2)

Hearing Aid Group

EXPERIMENTAL

This group will be fitted with hearing aids and will be the intervention group.

Device: Hearing aids programmed to each participant's hearing loss.

Information Session Control Group

NO INTERVENTION

This group will receive an information session during the time that the experimental group receives the hearing-aid fitting about available hearing care solutions.

Interventions

This study is not investigating the efficacy of hearing aids, rather it is investigating the effect of adjusting hearing on cognitive resources, listening effort, and fatigue.

Hearing Aid Group

Eligibility Criteria

Age60 Years - 99 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 60 or older
  • Hearing aid candidate (hearing loss of an average of 25 dB HL or worse)
  • Novice to hearing aids

You may not qualify if:

  • Younger than 60
  • Normal hearing
  • Already uses hearing aids

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Manchester Centre for Audiology and Deafness

Manchester, M13 9PL, United Kingdom

Location

MeSH Terms

Conditions

Mental FatigueHearing Loss

Condition Hierarchy (Ancestors)

FatigueSigns and SymptomsPathological Conditions, Signs and SymptomsBehavioral SymptomsBehaviorHearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System Diseases

Study Officials

  • Karolina Kluk de-Kort, Doctorate

    University of Manchester

    STUDY DIRECTOR
  • Antje Heinrich, Doctorate

    University of Manchester

    STUDY DIRECTOR
  • Josef Schlittenlacher, Doctorate

    University of Manchester

    STUDY DIRECTOR
  • Stephanie Loukieh, Masters Degree

    University of Manchester

    PRINCIPAL INVESTIGATOR
  • Raffael Schmitt, Doctorate

    Sonova AG

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Concealed allocation prevents the recruiter and data collector from knowing the assignment of each participant before the fitting session.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: The study will include 2 groups of older adult hearing aid candidates, one will receive a hearing aid intervention (the test group) and one will attend an explanation session instead (the control group) and they will be randomly assigned. Interested participants will be prescreened over the phone before being invited to the lab for official recruitment. Participants will be invited into the lab if they meet the age requirement (60 or above), get a positive screen in the RHHI-S (6 or above) and meet the condition of having no prior hearing aid experience. Participants will be randomly assigned in parallel as enrolment occurs with a biological sex balance. To achieve the randomisation element while still being able to assign as they enrol and maintain biological sex balance, stratified block randomisation will be used with a predetermined random assignment list attached here. Both groups will have a pre-test and a post-test.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

April 18, 2025

First Posted

April 30, 2025

Study Start

July 1, 2025

Primary Completion

September 30, 2025

Study Completion

September 30, 2025

Last Updated

February 24, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Aggregated anonymised data will be shared on an online data registry.

Locations