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Clinical Evaluation of Hearing Aid OTC Self-Assessment Methods for Adults With Perceived Mild-to-Moderate Hearing Loss

30 luglio 2026 aggiornato da: Rehear Audiology Company LTD

Clinical Evaluation of Two Rehear RH210 Self-Assessment Methods for Generating NAL-R-Based Prescribed Gain Compared With Conventional Audiometry in Adults With Perceived Mild-to-Moderate Hearing Loss

The goal of this clinical trial is to compare two methods of self assessment of hearing with conventional audiometry in an OTC Hearing Aid for adults with perceived mild to moderate hearing loss. The main questions it aims to answer are:

  1. To evaluate agreement between prescribed gain outputs generated from conventional audiometry and those generated from the self-assessment response method.
  2. Determine whether either self-assessment response method provides acceptable estimated audibility.
  3. Evaluate participant preference between the detection response method and the audibility-release response method.

Researchers will compare the two novel methods with conventional audiometry to determine levels of agreement.

Participants will self assess their hearing methods using two novel methods of hearing assessment as well as receive a conventional audiometric evaluation of hearing levels.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

The purpose of this clinical investigation is to evaluate two RH210 hearing aid software self-assessment response methods used to generate NAL-R-based prescribed gain for adults with perceived mild-to-moderate hearing loss. The study will compare prescribed gain outputs derived from each RH210 self-assessment response method with prescribed gain outputs derived from conventional audiometry using the same NAL-R prescription approach. The study will also assess whether the resulting prescribed gain provides estimated audibility using Speech Intelligibility Index (SII) analysis, and will evaluate participant preference between the two self-assessment response methods. The RH210A is an air-conduction hearing aid designed for adults with perceived mild-to-moderate sensorineural hearing loss.

The two RH210 self-assessment response methods evaluated in this study are:

  1. Detection response method (Option 1): the participant presses a response control when they hear the tone or beep.
  2. Audibility-release response method (Option 2): the participant maintains a press while the tone or beep is audible and releases the response control when they no longer hear it.

The study is designed to:

  1. Evaluate agreement between NAL-R prescribed gain outputs generated from conventional audiometry and NAL-R prescribed gain outputs generated from each RH210 self-assessment response method.
  2. Compare the detection response method and audibility-release response method with respect to prescribed gain agreement by ear and frequency.
  3. Assess estimated audibility associated with the self-assessment-derived NAL-R prescriptions using Speech Intelligibility Index (SII) analysis.
  4. Determine whether either self-assessment response method provides acceptable estimated audibility, including in cases where prescribed gain does not exactly match the conventional-audiometry-derived NAL-R prescription.
  5. Evaluate participant preference between the detection response method and the audibility-release response method.
  6. Assess general agreement, completeness, invalid-test rate, usability and response consistency for each self-assessment response method.
  7. Support validation of the Rehear assessment-to-fitting pathway without positioning the RH210 self-assessment function as a diagnostic audiometer.

This study is not intended to establish Human Factors performance. However, observations arising during execution of the assessment workflow may identify opportunities to improve the user interface, workflow or user guidance before the final Human Factors validation study. These observations are exploratory development outputs and are not formal study endpoints.

Tipo di studio

Interventistico

Iscrizione (Stimato)

24

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

  • Nome: Sanna Hou, Master of Audiology
  • Numero di telefono: +61 2 9412 6872
  • Email: sann.hou@nal.gov.au

Luoghi di studio

    • New South Wales
      • Macquarie Park, New South Wales, Australia, 2113
        • National Acoustic Laboratories
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Age 18 years
  • Self-perceived mild-to-moderate hearing difficulties/ hearing loss
  • Competent smartphone use (able to complete self-fitting via the app)
  • Able and willing to provide informed consent
  • HHIA screening consistent with perceived hearing difficulty
  • Willingness and ability to attend two in-person research appointments
  • Ability to operate a SmartPhone

Exclusion Criteria:

  • Conductive or mixed hearing loss
  • Occluding cerumen
  • Otologic disease/ active ear pathology
  • Severe or profound hearing loss (PTA >S0dBHL) (WHO, 2021)
  • Presence of (red-flag) conditions relevant to OTC hearing aid use (per 21 CFR 801.421)
  • Visible deformity of the ear (congenital or traumatic).
  • Fluid, pus, or blood coming from the ear (e.g., active drainage).
  • Sudden or rapidly progressive hearing loss within the recent past (often defined as within ~90 days).
  • Any acute or chronic dizziness or vertigo associated with hearing issues.
  • Pain or discomfort in or around the ear.
  • Visible evidence of significant cerumen (ear wax) accumulation or foreign body in the ear canal.
  • Unilateral hearing loss of sudden onset or large asymmetry between ears.
  • Audiometric air-bone gap suggestive of possible conductive pathology (e.g., gap equal or more than 15 dB at key frequencies)
  • Visible evidence of significant cerumen (ear wax) accumulation or foreign body in the ear canal.
  • Unilateral hearing loss of sudden onset or large asymmetry between ears

Exclusion Criteria:

-

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione incrociata
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Conventional manual pure-tone audiometry
The comparator for this clinical investigation is conventional manual pure-tone audiometry performed in accordance with ANSI/ASA S3.21-2004 (R2023), Methods for Manual Pure-Tone Threshold Audiometry, followed by generation of a NAL-R-based prescribed gain output.
Sperimentale: Mode A
RH210 self-test method 1: detection response method, where the participant presses when they hear the tone or beep

The Investigational Medical Device (IMD) consists of the RH210 hearing aid software self-test function accessed through the Rehear smartphone application and used in combination with the RH210A compatible in-ear hardware platform.

For this clinical investigation, the RH210A hardware platform is used to present calibrated test sounds (pure tones) to the participant during the app-based self-test. The RH210A is not being evaluated as a diagnostic audiometer, and the study is not designed to evaluate the hearing aid's amplification performance.

The two RH210 self-test response methods evaluated in this study are:

  • Detection response method: the participant presses the response control when they hear the tone or beep (Mode A).
  • Audibility-release response method: the participant maintains the response control while the tone or beep is audible and releases the response control when they no longer hear the tone or beep (Mode B).
Sperimentale: Mode B
RH210 self-test method 2: audibility-release response method, where the participant releases the response control when they no longer hear the tone or beep

The Investigational Medical Device (IMD) consists of the RH210 hearing aid software self-test function accessed through the Rehear smartphone application and used in combination with the RH210A compatible in-ear hardware platform.

For this clinical investigation, the RH210A hardware platform is used to present calibrated test sounds (pure tones) to the participant during the app-based self-test. The RH210A is not being evaluated as a diagnostic audiometer, and the study is not designed to evaluate the hearing aid's amplification performance.

The two RH210 self-test response methods evaluated in this study are:

  • Detection response method: the participant presses the response control when they hear the tone or beep (Mode A).
  • Audibility-release response method: the participant maintains the response control while the tone or beep is audible and releases the response control when they no longer hear the tone or beep (Mode B).

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Agreement of NAL-R prescribed gain outputs (dB) between the comparator conditions
Lasso di tempo: Day 1

The primary endpoint is the agreement of NAL-R prescribed gain outputs (dB), by ear (R/L) and frequency (Hz), between:

  • Conventional-audiometry-derived NAL-R prescribed gain (dB), and
  • RH210 self-test-derived NAL-R prescribed gain (dB), generated using each of the two RH210 response methods.

The frequency-specific analysis will include: 500 Hz; 1 kHz; 2 kHz; and 4 kHz.

The two RH210 response methods are:

  • Detection response method: participant presses when they hear the tone or beep (Mode A).
  • Audibility-release response method: participant releases the response control when they no longer hear the tone or beep Mode B).
Day 1

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Number of Participants with Treatment-Related Adverse Events as classified by ISO14155:2026
Lasso di tempo: Day 1

The secondary safety objective is to assess the safety of participant exposure to the RH210 app-based self-test procedure when the RH210A in-ear hardware platform is used to present test sounds.

Safety will be assessed by the incidence, severity, seriousness and relationship to the investigational device or study procedure of:

  • adverse events;
  • adverse device effects;
  • anticipated adverse device effects;
  • discomfort associated with in-ear device use;
  • excessive loudness or sound intolerance;

No formal statistical hypothesis is proposed for safety. Safety outcomes will be summarized descriptively.

Day 1
Difference in Speech Intelligibility Index (SII) and SRT in quiet (CNC words) between the three conditions
Lasso di tempo: Day 1

The secondary objective is to evaluate whether RH210 self-test-derived NAL-R prescribed gain outputs (dB) provide estimated audibility comparable to the conventional-audiometry-derived NAL-R reference pathway.

The secondary endpoint is the difference in Speech Intelligibility Index / Audibility Index and SRT in quiet between:

(1) The conventional-audiometry-derived NAL-R prescribed gain condition (dB); and (2) Each RH210 self-test-derived NAL-R prescribed gain (dB) condition.

The analysis will be conducted under a pre-specified standard aided speech condition (SRT50% dB), for example adaptive speech in quiet SRT50, with the final method defined in the Statistical Analysis Plan

Day 1

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Participant preference (A vs B questionnaire) will be assessed after completion of both self fit response methods.
Lasso di tempo: Day 1

The first exploratory objective is to evaluate participant preference between the two RH210 self-test response methods.

Participant preference will be assessed after completion of both RH210 response methods. The endpoint will include:

  • proportion of participants preferring the detection response method;
  • proportion preferring the audibility-release response method;
  • proportion reporting no preference;
  • reasons for preference, where collected. No formal hypothesis is proposed. Results will be summarized descriptively.
Day 1
Compare the practical performance of the two RH210 self-test response methods using NAL checklist.
Lasso di tempo: Day 1

Exploratory endpoints will include, for each response method:

  • completion rate;
  • invalid or unusable test rate;
  • missing frequency-specific data rate;
  • test duration;
  • participant-reported ease of use;
  • observed difficulty or need for clarification;
  • repeatability or response consistency, where repeat data are available.

No formal hypothesis is proposed. Results will be summarized descriptively.

Day 1

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Investigatori

  • Investigatore principale: Bettina Turnbull, Doctor of Audiology, National Acoustic Laboratories

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

15 agosto 2026

Completamento primario (Stimato)

1 ottobre 2026

Completamento dello studio (Stimato)

1 ottobre 2026

Date di iscrizione allo studio

Primo inviato

26 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

26 luglio 2026

Primo Inserito (Effettivo)

31 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

3 agosto 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

30 luglio 2026

Ultimo verificato

1 luglio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • NAL C26.08

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

The study is a commercial sponsor investigation of a product that is not yet cleared by regulatory agencies

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .