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- Registre américain des essais cliniques
- Essai clinique NCT07789665
Auditory Intranerve Stimulation Perceptual Study (ANI-NIH)
Scientific Assessment of Auditory Intranerve Stimulation Loudness and Pitch Percepts
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
The auditory nerve implant (ANI) targets the auditory nerve directly between the cochlea and the brainstem, whereas current implants like the cochlear and brainstem implants stimulate the cochlea or brainstem, respectively. By providing direct stimulation within the auditory nerve, a nerve implant offers a better electrode-nerve interface and may achieve improved hearing compared to a cochlear or brainstem implant. Preliminary results in animals, computer simulations, and acute clinical studies showed significantly better performance compared to other hearing aidsoptions. This study aims to investigate the extent to which these benefits are perceptible in the human auditory nerve.
The primary goal of this study is to gain scientific insight into the hearing experience with the direct auditory nerve stimulation. However, the results could contribute to the development of new hearing implants that directly stimulate the auditory nerve.
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Hubert Lim, Prof.
- Numéro de téléphone: +16126264565
- E-mail: Hlim@umn.edu
Lieux d'étude
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Hanover, Allemagne, 30625
- Recrutement
- Hannover Medical School
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Contact:
- Karl-Heinz Dyballa
- Numéro de téléphone: +4917615328589
- E-mail: dybala.karl-heinz@mh-hannover.de
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Sous-enquêteur:
- Rolf Salcher, Dr.
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Sous-enquêteur:
- Max Timm, Dr
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Sous-enquêteur:
- Waldo Nogueira, Prof.
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Sous-enquêteur:
- Karl-Heinz Dyballa, Dr.
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Chercheur principal:
- Thomas Lenarz, Prof.
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Hanover, Allemagne, 30625
- Actif, ne recrute pas
- Service provider for the performance of surgical procedures: International Neuroscience Institute
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Age ≥18 and ≤85 years
- Written informed consent
- Bilateral deafness with cochlea that does not allow the implantation of a cochlear implant (CI). This can include ossification, malformation of cochlea; poor CI performers (lowest quartile of CI performance); and patientparticipants with facial nerve stimulation using a CI which is not manageable without reduction of performance
- Eligible for routine auditory brainstem implant (ABI) where patientparticipants would undergo more invasive brainstem surgery than the ANI surgery
- Functional auditory nerve and central auditory pathway
- Post-linguistic onset of ipsilateral severe-to-profound hearing loss
- The contralateral ear has sufficient vestibular function
Women not able to become pregnant*
Women not able to become pregnant defined as follows:
- at least 6 weeks after surgical sterilization by bilateral tubal ligation or bilateral oophorectomy or
- hysterectomy or uterine agenesis or
- ≥ 50 years and in postmenopausal state > 1 year or
- < 50 years and in postmenopausal state > 1 year with serum FSH > 40 IU/l and serum estrogen < 30 ng/l or a negative estrogen test, both at screening
Exclusion Criteria:
- Medical, neurological, or psychological conditions that would contraindicate undergoing surgery, e.g. depression, acute cardiac infarction, history of stroke, dementia, epilepsy
- Additional handicaps that would prevent participation in evaluations
- Women able to become pregnant
- Pregnant women
- Persons who are deprived of their liberty on the basis of an official order or a court order or authorization
- Known allergies to one of the components of the implant (medical grade silicone, Parylene-C, Iridium oxide, Platinum-Iridium alloy (PtIr 10) and (PtIr 20) )
- Other active devices with potential interference with the auditory nerve implant
- Presence of anatomic abnormalities that would prevent appropriate placement of the stimulator housing in the bone of the skull
- Additionally, in the event of other health issues, the investigators will decide on a case-by-case basis whether to enroll the patientparticipant in the study
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Faisabilité de l'appareil
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Experimental: Direct Auditory Nerve Stimulation
Patients Participants will be implanted with an Auditory Nerve Implant (ANI) for one year to evaluate key perceptual measures of temporary direct auditory nerve stimulation.
Safety and efficacy will also be evaluated, as well as different speech perception capabilities.
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The investigational research device consists of a speech processor worn on the ear and an implant body with an electrode array.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Pitch perception performance of ANI
Délai: 12 months
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Systematic place pitch ordering maintained on month 12
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12 months
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Loudness perception performance of ANI
Délai: 12 months
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Collection of loudness growth functions (LGFs) across single electrodes that have a dynamic range greater than 6 dB and maintained on month 12
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12 months
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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Frequency Resolution
Délai: 12 months
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Minimum frequency specificity (i.e., current spread) of electrodes is narrower than 0.8 mm in bandwidth maintained on month 12
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12 months
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Position of ANI electrode array in auditory nerve
Délai: 12 months
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Evaluation of the final position of the ANI electrode array.
The number of electrodes eliciting auditory activation will be measured.
The stability of the percepts elicited will also be measured.
Both of these measurements provide the stability of the electrode array implanted within the auditory nerve.
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12 months
|
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Collection of adverse events
Délai: 12 months
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Collection of adverse events during the evaluation period
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12 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Thomas Lenarz, Prof., Hannover Medical School
- Chercheur principal: Amir Samii, Prof., International Neuroscience Institute Hannover
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 0000509678
- No.11979-BO-MPDG-M-2025 (Autre identifiant: Ethics committee Hannover Medical School)
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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