ACTIVE_NOT_RECRUITING

Safety and Efficacy of a Drug Eluting Slim Modiolar Electrode Array

Conditions

Hearing Loss cochlear implant dexamethasone fibrosis

Quick Navigation

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This clinical study will test a new type of cochlear implant known as CI632D. This experimental cochlear implant has been designed to slowly release a drug called dexamethasone. Dexamethasone works to ease inflammation and reduce tissue injury, which is common after any type of surgery. The goal is to learn if the dexamethasone in the CI632D implant lessens these reactions inside the ear following surgery and if this makes the implant work as well, or even better, in improving hearing than what would be expected with a standard cochlear implant. The study will be conducted in adults with sensorineural hearing loss, a type of hearing loss caused by damage to the inner ear or auditory nerve (the nerve that carries sound signals from the ear to the brain). The study participants will receive the CI632D experimental implant and will complete tests to see how well they are hearing and how well the implant is working.

Official Title

A Pivotal, Prospective, Multicentre, Single-arm Study Evaluating the Safety and Efficacy of a Dexamethasone Eluting Slim Modiolar Electrode Array (EA32D).

Quick Facts

Study Start:2025-01-03

Study Completion:2026-09

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:ACTIVE_NOT_RECRUITING

Study ID

NCT06598059

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* 18 years or older, at time of consent. * Postlinguistic moderately severe to profound sensorineural hearing loss, defined by a four frequency (500, 1000, 2000, 4000 Hz) pure-tone average unaided threshold (PTA4) ≥ 60 decibels hearing level (dB HL), in the ear to be implanted (For this study, moderately severe is defined by a four-frequency, pure-tone average threshold (PTA4) over the range 500 through 4000 Hz of more than 55 dB HL through 70 dB HL, inclusive. Profound is defined by a PTA4 of more than 90 dB HL). * Pure-tone average unaided threshold (500 through 4000 Hz) ≥ 30 dB HL, in the contralateral ear. * Preoperative aided word score ≤ 40% correct in the ear to be implanted. * Evidence of pneumococcal vaccination (e.g., Pneumovax) according to local guidelines. * Candidate is proficient in the language used to assess speech perception performance. * Willing and able to provide written informed consent.	* Intra-axial (within the brain) lesions or deafness due to lesions of the acoustic nerve affecting the ear to be implanted. * Middle ear infection (including acute otitis media, chronic otitis media, suppurative otitis media, or serous drainage) in the ear to be implanted either at the time of surgery or within 3 months prior to enrolment. * Active autoimmune disease or active immunosuppressive therapy. * Presence of a tympanic membrane perforation or a history of otologic surgery within 3 months prior to enrolment, in the ear to be implanted. * Previously reported diagnosis of auditory neuropathy, in the ear to be implanted. * Previously reported diagnosis, in the ear to be implanted, of Large Vestibular Aqueduct Syndrome (LVAS), Meniere's disease, or cochlear hydrops. * Ossification, otosclerosis, malformation or any other cochlear anomaly, such as common cavity, that might prevent complete insertion of the electrode array, in the ear to be implanted. * Current cerebrospinal fluid (CSF) shunts or drains, existing perilymph fistula, skull fracture or CSF leaks. * Previously reported diagnosis of bacterial meningitis. * Known allergic reaction or contraindication to dexamethasone or corticosteroids. * Severe, or poorer, bilateral sensorineural hearing loss prior to 5 years of age, as reported by the subject. (For this study, severe is defined by a PTA4 of more than 70 dB HL through 90 dB HL, inclusive). * Severe, or poorer, sensorineural hearing loss for more than 20 years, as reported by the subject, in the ear to be implanted. * Prior cochlear implantation in either ear. * Medical plan for cochlear implantation during the clinical investigation, contralateral to the ear to be implanted. * Medical or psychological conditions that contraindicate general anaesthesia, surgery, or participation in the clinical investigation as determined by the Investigator. * Unrealistic expectations on the part of the subject regarding the possible benefits, risks, and limitations inherent to the surgical procedure(s) and prosthetic devices, as determined by the Investigator. * Women who are pregnant. * Additional disabilities that may affect the subject's participation or safety during the clinical investigation. * Unable or unwilling to comply with all the requirements of the clinical investigation as determined by the investigator. * Investigator site personnel directly affiliated with this study and/or their immediate families. Immediate family is defined as spouse, parent, child, or sibling. * Cochlear employees or employees of Contract Research Organisations or contractors engaged by Cochlear for the purposes of this investigation. * Current participation, or participation in another interventional clinical study/trial in the past 30 days, involving an investigational drug or device unless Cochlear sponsored and determined by Investigator or Sponsor to not impact this investigation.

Inclusion Criteria

Exclusion Criteria

* 18 years or older, at time of consent.
* Postlinguistic moderately severe to profound sensorineural hearing loss, defined by a four frequency (500, 1000, 2000, 4000 Hz) pure-tone average unaided threshold (PTA4) ≥ 60 decibels hearing level (dB HL), in the ear to be implanted (For this study, moderately severe is defined by a four-frequency, pure-tone average threshold (PTA4) over the range 500 through 4000 Hz of more than 55 dB HL through 70 dB HL, inclusive. Profound is defined by a PTA4 of more than 90 dB HL).
* Pure-tone average unaided threshold (500 through 4000 Hz) ≥ 30 dB HL, in the contralateral ear.
* Preoperative aided word score ≤ 40% correct in the ear to be implanted.
* Evidence of pneumococcal vaccination (e.g., Pneumovax) according to local guidelines.
* Candidate is proficient in the language used to assess speech perception performance.
* Willing and able to provide written informed consent.

* Intra-axial (within the brain) lesions or deafness due to lesions of the acoustic nerve affecting the ear to be implanted.
* Middle ear infection (including acute otitis media, chronic otitis media, suppurative otitis media, or serous drainage) in the ear to be implanted either at the time of surgery or within 3 months prior to enrolment.
* Active autoimmune disease or active immunosuppressive therapy.
* Presence of a tympanic membrane perforation or a history of otologic surgery within 3 months prior to enrolment, in the ear to be implanted.
* Previously reported diagnosis of auditory neuropathy, in the ear to be implanted.
* Previously reported diagnosis, in the ear to be implanted, of Large Vestibular Aqueduct Syndrome (LVAS), Meniere's disease, or cochlear hydrops.
* Ossification, otosclerosis, malformation or any other cochlear anomaly, such as common cavity, that might prevent complete insertion of the electrode array, in the ear to be implanted.
* Current cerebrospinal fluid (CSF) shunts or drains, existing perilymph fistula, skull fracture or CSF leaks.
* Previously reported diagnosis of bacterial meningitis.
* Known allergic reaction or contraindication to dexamethasone or corticosteroids.
* Severe, or poorer, bilateral sensorineural hearing loss prior to 5 years of age, as reported by the subject. (For this study, severe is defined by a PTA4 of more than 70 dB HL through 90 dB HL, inclusive).
* Severe, or poorer, sensorineural hearing loss for more than 20 years, as reported by the subject, in the ear to be implanted.
* Prior cochlear implantation in either ear.
* Medical plan for cochlear implantation during the clinical investigation, contralateral to the ear to be implanted.
* Medical or psychological conditions that contraindicate general anaesthesia, surgery, or participation in the clinical investigation as determined by the Investigator.
* Unrealistic expectations on the part of the subject regarding the possible benefits, risks, and limitations inherent to the surgical procedure(s) and prosthetic devices, as determined by the Investigator.
* Women who are pregnant.
* Additional disabilities that may affect the subject's participation or safety during the clinical investigation.
* Unable or unwilling to comply with all the requirements of the clinical investigation as determined by the investigator.
* Investigator site personnel directly affiliated with this study and/or their immediate families. Immediate family is defined as spouse, parent, child, or sibling.
* Cochlear employees or employees of Contract Research Organisations or contractors engaged by Cochlear for the purposes of this investigation.
* Current participation, or participation in another interventional clinical study/trial in the past 30 days, involving an investigational drug or device unless Cochlear sponsored and determined by Investigator or Sponsor to not impact this investigation.

Contacts and Locations

Principal Investigator

Aaron Parkinson, PhD

STUDY_DIRECTOR

Cochlear

Study Locations (Sites)

UCLA Medical Center

Los Angeles, California, 90095

United States

Rocky Mountain Ear Center

Englewood, Colorado, 80113

United States

University of Iowa

Iowa City, Iowa, 52242

United States

Henry Ford Health

Detroit, Michigan, 48202

United States

Washington University

St Louis, Missouri, 63141

United States

New York Eye and Ear Infirmary

New York, New York, 10010

United States

NYU Langone Health

New York, New York, 10017

United States

Northwell Health Long Island Jewish Medical Center

New York, New York, 11042

United States

University Hospitals

Cleveland, Ohio, 44106

United States

Oregon Health & Science University

Portland, Oregon, 97239

United States

Medical University of South Carolina

Charleston, South Carolina, 29425

United States

Collaborators and Investigators

Sponsor: Cochlear

Aaron Parkinson, PhD, STUDY_DIRECTOR, Cochlear

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-01-03

Study Completion Date2026-09

Study Record Updates

Study Start Date2025-01-03

Study Completion Date2026-09

Terms related to this study

Keywords Provided by Researchers

cochlear implant
dexamethasone
fibrosis

Additional Relevant MeSH Terms

Hearing Loss