- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07789665
Auditory Intranerve Stimulation Perceptual Study (ANI-NIH)
Scientific Assessment of Auditory Intranerve Stimulation Loudness and Pitch Percepts
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
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.
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Hubert Lim, Prof.
- Número de teléfono: +16126264565
- Correo electrónico: Hlim@umn.edu
Ubicaciones de estudio
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Hanover, Alemania, 30625
- Reclutamiento
- Hannover Medical School
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Contacto:
- Karl-Heinz Dyballa
- Número de teléfono: +4917615328589
- Correo electrónico: dybala.karl-heinz@mh-hannover.de
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Sub-Investigador:
- Rolf Salcher, Dr.
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Sub-Investigador:
- Max Timm, Dr
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Sub-Investigador:
- Waldo Nogueira, Prof.
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Sub-Investigador:
- Karl-Heinz Dyballa, Dr.
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Investigador principal:
- Thomas Lenarz, Prof.
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Hanover, Alemania, 30625
- Activo, no reclutando
- Service provider for the performance of surgical procedures: International Neuroscience Institute
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
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 de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Viabilidad del dispositivo
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: 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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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Pitch perception performance of ANI
Periodo de tiempo: 12 months
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Systematic place pitch ordering maintained on month 12
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12 months
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Loudness perception performance of ANI
Periodo de tiempo: 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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Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Frequency Resolution
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 12 months
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Collection of adverse events during the evaluation period
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12 months
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Thomas Lenarz, Prof., Hannover Medical School
- Investigador principal: Amir Samii, Prof., International Neuroscience Institute Hannover
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 0000509678
- No.11979-BO-MPDG-M-2025 (Otro identificador: Ethics committee Hannover Medical School)
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .