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The Hear Clear Study

11 september 2026 bijgewerkt door: Duke University

Hearing Aid Benefit in Adults With Self-Reported Hearing Difficulty Yet Normal Pure-Tone Audiograms (Duke sIRB)

The purpose of this study is to determine if hearing aid use helps adults with "normal" hearing on clinical hearing tests (i.e., pure-tone audiogram), but who report hearing trouble in everyday life. Another purpose is to understand what factors and hearing aid features provide the most help for these people.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Participants will be randomly assigned to a hearing aid group and asked to wear a pair of hearing aids with a certain setting for 4 weeks, take a 4-week break, then wear hearing aids with a different setting for 4 weeks. Participants will complete several hearing-related assessments before and after each trial of hearing aids and share their experiences with each hearing aid setting. This study includes four research visits at a research laboratory at Duke University or The Ohio State University.

Studietype

Ingrijpend

Inschrijving (Geschat)

125

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Verenigde Staten
    • North Carolina
      • Durham, North Carolina, Verenigde Staten, 27710
        • Duke University Medical Center
        • Contact:
        • Contact:
        • Hoofdonderzoeker:
          • Sherri L Smith, Au.D., Ph.D.
    • Ohio
      • Columbus, Ohio, Verenigde Staten, 43210
        • The Ohio State University
        • Contact:
          • Christina M Roup, Ph.D.
          • Telefoonnummer: 614-247-8614
          • E-mail: roup.2@osu.edu
        • Hoofdonderzoeker:
          • Christina M Roup, Ph.D.

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion Criteria:

  • Are adults (≥18 years) presenting with "normal hearing" (pure-tone thresholds ≤25 dB HL from 250-4000 Hz) but hearing trouble (≥20 points on RHHI questionnaire)
  • Are willing to try amplification (i.e., hearing aids) for the first time
  • Can Read/write in American English
  • Have access to email, internet, and phone

Exclusion Criteria:

  • Participants with self-reported otologic history (e.g., ear surgery, ototoxic medications, middle-ear dysfunction, holes in ear drums)
  • Have moderate to severe traumatic brain injury
  • Have bothersome tinnitus as their primary complaint
  • Have a health condition that would interfere with study participation (e.g., dementia/cognitive disorder, blindness)
  • Prior hearing aid use

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Open-dome receiver-in-canal hearing aids
Air-conduction receiver-in-canal (RIC) hearing aids with open domes, which have holes or vents that let natural sound and air pass into the ear canal.
Ander: Signal-to-Noise Ratio Enhancement (SNR+)

Participants will be randomly assigned to either the open dome or closed dome group (Factor 1). Participants will then obtain their first treatment arm with a random assignment of either an SNR neutral (SNR-) or SNR enhanced (SNR+) hearing aid fitting (Factor 2). They will return to the lab for testing prior to crossing over to the second arm (the other SNR configuration: SNR- or SNR+).

The SNR+ setting contains features to improve the signal-to-noise ratio of the sound to optimize speech over noise through the hearing aids.

Ander: Signal-to-Noise Ratio Neutral (SNR-)

Participants will be randomly assigned to either the open dome or closed dome group (Factor 1). Participants will then obtain their first treatment arm with a random assignment of either an SNR neutral (SNR-) or SNR enhanced (SNR+) hearing aid fitting (Factor 2). They will return to the lab for unaided baseline testing prior to crossing over to the second arm (the other SNR configuration: SNR- or SNR+).

The SNR- setting contains focuses on improving audibility of sounds through the hearing aids.
Experimenteel: Closed-dome receiver-in-canal hearing aids
Air-conduction receiver-in-canal (RIC) hearing aids with closed domes, which have solid rubber with tiny or no vents to seal the ear.
Ander: Signal-to-Noise Ratio Enhancement (SNR+)

Participants will be randomly assigned to either the open dome or closed dome group (Factor 1). Participants will then obtain their first treatment arm with a random assignment of either an SNR neutral (SNR-) or SNR enhanced (SNR+) hearing aid fitting (Factor 2). They will return to the lab for testing prior to crossing over to the second arm (the other SNR configuration: SNR- or SNR+).

The SNR+ setting contains features to improve the signal-to-noise ratio of the sound to optimize speech over noise through the hearing aids.

Ander: Signal-to-Noise Ratio Neutral (SNR-)

Participants will be randomly assigned to either the open dome or closed dome group (Factor 1). Participants will then obtain their first treatment arm with a random assignment of either an SNR neutral (SNR-) or SNR enhanced (SNR+) hearing aid fitting (Factor 2). They will return to the lab for unaided baseline testing prior to crossing over to the second arm (the other SNR configuration: SNR- or SNR+).

The SNR- setting contains focuses on improving audibility of sounds through the hearing aids.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Revised Hearing Handicap Inventory (RHHI)
Tijdsspanne: Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)
18-item questionnaire that assesses self-perceived hearing difficulty associated with social and emotional situations and is considered a hearing-related quality of life measure. Higher scores indicate MORE hearing difficulty. Administered unaided and aided. Scores range from 0 - 72.
Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Abbreviated Profile of Hearing Aid Benefit (APHAB)
Tijdsspanne: Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)
24-item questionnaire used to assess hearing problems in various listening environments (e.g., quiet, background noise, reverberation, and aversiveness to sound). Higher scores indicate greater hearing problems. Administered unaided and aided. Scores range from 1% to 99%.
Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)
Words in Noise (WIN) Test
Tijdsspanne: Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)
35-word recognition in noise test with 5 words at each of the 7 signal-to-noise ratios that go from 24 dB SNR to 0 dB SNR in 4-dB decrements. The noise (six talker babble) is held constant with the level of the words varying to make up the SNRs. Listener repeats words in background noise of talkers where the words get progressively softer. Higher scores indicate more trouble hearing in noise. Administered unaided and aided. Scores range from 0dB to 24dB.
Baseline (unaided), 4 weeks (aided with intervention 1), 4 weeks (after wash-out period, and unaided), and 4 weeks (aided with intervention 2)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Duke University

Medewerkers

National Institute on Deafness and Other Communication Disorders (NIDCD)

Onderzoekers

  • Hoofdonderzoeker: Sherri L Smith, Au.D., Ph.D., Duke University

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 januari 2027

Primaire voltooiing (Geschat)

1 mei 2030

Studie voltooiing (Geschat)

1 mei 2030

Studieregistratiedata

Eerst ingediend

11 september 2026

Eerst ingediend dat voldeed aan de QC-criteria

11 september 2026

Eerst geplaatst (Werkelijk)

17 september 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

17 september 2026

Laatste update ingediend die voldeed aan QC-criteria

11 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • Pro00120285
  • 1R01DC022584-01A1 (Subsidie/contract van de Amerikaanse NIH)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

Investigators will share the de-identified analytic dataset and associated metadata as required by NIH policy.

IPD-tijdsbestek voor delen

1 year after the main publication or as required by NIH policy

IPD-toegangscriteria voor delen

Researchers interested in the study analytic dataset will request permission for use with justification for access.

IPD delen Ondersteunend informatietype

  • LEERPROTOCOOL
  • SAP
  • ICF
  • ANALYTIC_CODE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

product vervaardigd in en geëxporteerd uit de V.S.

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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