- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07789665
Auditory Intranerve Stimulation Perceptual Study (ANI-NIH)
Scientific Assessment of Auditory Intranerve Stimulation Loudness and Pitch Percepts
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
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.
Studientyp
Einschreibung (Geschätzt)
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
- Name: Hubert Lim, Prof.
- Telefonnummer: +16126264565
- E-Mail: Hlim@umn.edu
Studienorte
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Hanover, Deutschland, 30625
- Rekrutierung
- Hannover Medical School
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Kontakt:
- Karl-Heinz Dyballa
- Telefonnummer: +4917615328589
- E-Mail: dybala.karl-heinz@mh-hannover.de
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Unterermittler:
- Rolf Salcher, Dr.
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Unterermittler:
- Max Timm, Dr
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Unterermittler:
- Waldo Nogueira, Prof.
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Unterermittler:
- Karl-Heinz Dyballa, Dr.
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Hauptermittler:
- Thomas Lenarz, Prof.
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Hanover, Deutschland, 30625
- Aktiv, nicht rekrutierend
- Service provider for the performance of surgical procedures: International Neuroscience Institute
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Machbarkeit des Geräts
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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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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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Pitch perception performance of ANI
Zeitfenster: 12 months
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Systematic place pitch ordering maintained on month 12
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12 months
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Loudness perception performance of ANI
Zeitfenster: 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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Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Frequency Resolution
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 12 months
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Collection of adverse events during the evaluation period
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12 months
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Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Thomas Lenarz, Prof., Hannover Medical School
- Hauptermittler: Amir Samii, Prof., International Neuroscience Institute Hannover
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 0000509678
- No.11979-BO-MPDG-M-2025 (Andere Kennung: Ethics committee Hannover Medical School)
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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