Hearing Loss, Cochlear Clinical Trial
Official title:
Expanded Indications in the MED-EL Pediatric Cochlear Implant Population
Sixty (60) subjects between the ages of 7 months and 5 years, 11 months will be implanted with the MED-EL SYNCHRONY/SYNCHRONY 2 Cochlear Implant System. All subjects will demonstrate a severe to profound sensorineural hearing loss (SNHL) in the high frequencies (2000 Hz and above) and insufficient functional access to sound with appropriately fit amplification and aural habilitation. Additionally, subjects implanted under 12 months of age will demonstrate a severe to profound sensorineural hearing loss, defined by a 3-frequency Pure Tone Average (PTA) of ≥ 70 dB HL at 500, 1000 and 2000 Hz, while subjects 12 months to 5 years, 11 months of age will demonstrate a mild to profound sensorineural hearing loss in the low frequencies, defined by a 3-frequency PTA of ≥ 25 dB HL at 500, 1000 and 2000 Hz. For the purposes of this study, insufficient functional access to sound for children who lack the requisite language to complete open-set word recognition testing will be based on the LittlEARS Auditory Questionnaire (LEAQ) and defined as a Total Score below the expected value for normal hearing (NH) children of the same chronological age1. For children with the requisite language to complete MLNT/LNT testing, insufficient functional access to sound will be defined by word recognition scores of ≤ 60% on the MLNT/LNT. Subjects will be followed for twelve (12) months following initial activation of the audio processor, with post-operative evaluations occurring at device.
Status | Recruiting |
Enrollment | 60 |
Est. completion date | November 30, 2022 |
Est. primary completion date | September 30, 2021 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 7 Months to 6 Years |
Eligibility |
Inclusion Criteria: - Children 7 months to 5 years, 11 months of age at the time of implantation Page 15 of 55 - Bilateral, severe to profound sensorineural hearing loss (SNHL) in the high frequencies (> 70 dB HL at 2000 Hz and above) and: - For subjects implanted under 12 months of age: bilateral, severe to profound SNHL, defined by a 3-frequency Pure Tone Average (PTA) of = 70 dB HL at 500, 1000 and 2000 Hz - For subjects implanted at 12 months to 5 years, 11 months of age: bilateral, mild to profound sensorineural hearing loss in the low frequencies, defined by a 3-frequency PTA of = 25 dB HL at 500, 1000 and 2000 Hz. - For bilateral implantation, unaided audiometric thresholds of = 70 dB HL at each required frequency between 250 and 8000 Hz. - Insufficient functional access to sound with appropriately fit amplification and aural habilitation (based on clinic standard of care), defined as: - For children who lack the requisite language to complete open-set word recognition testing: LEAQ Total Score below the expected value for normal hearing (NH) children of the same chronological age1 in the everyday listening condition, or - For children with the requisite language to complete open-set word recognition testing: Monosyllabic word score < 60% on the MLNT/LNT at 60 dB SPL, in the ear(s) to be implanted. - Objective measures consistent with repeatable unaided audiometric thresholds: optional for subjects 12 months of age and older with reliable, ear-specific behavioral thresholds. Specific measure (e.g., ABR, ASSR, DPOAE, TOAE, etc.), protocol used, and clinical interpretation should be based on clinic judgement and standard of care. (Note: Candidates with Auditory Neuropathy Spectrum Disorder (ANSD) may be considered, if all other inclusion and exclusion criteria are met.) - Radiologic evidence of potential for full insertion with one of the included electrode arrays in the ear(s) to be implanted - Ability to undergo general anesthesia. Subjects implanted under 12 months of age must meet the criteria for ASA (American Society of Anesthesiologists) Class 1 or Class 2, as determined by a board-certified anesthesiologist and according to the American Society of Anesthesiologists Physical Status Classification System43 - At least one parent/guardian who is fluent in one of the available languages of the LEAQ - Parental commitment to study parameters, as determined by the implant team Exclusion Criteria: - Magnetic Resonance Imaging (MRI) evidence of cochlear nerve aplasia/hypoplasia in the ear(s) to be implanted - Active middle ear infection - Permanent conductive hearing loss, defined as a persistent air-bone-gap (ABG) of greater than 10 dB HL at 3 or more frequencies and diagnosed pathology of the outer or middle ear. (Note: Candidates with a pseudo-conductive hearing loss (like that seen in Enlarged Vestibular Aqueducts) and no diagnosed pathology of the outer or middle ear may be considered, if all other inclusion and exclusion criteria are met.) - Treatable mixed hearing loss - Current or history of meningitis - Common cavity in the ear(s) to be implanted - Skin or scalp condition precluding use of external audio processor - Suspected cognitive impairment, organic brain dysfunction, or syndromic etiology that may affect performance (based on medical history, early intervention services, clinical judgment and/or developmental milestones) - ASA (American Society of Anesthesiologists) Class 3 or higher in subjects under 12 months of age, as determined by a board-certified anesthesiologist and according to the American Society of Anesthesiologists Physical Status Classification System43 - History of prior use of a hearing implant - Unrealistic parental/patient expectations - Child is not able to complete developmentally-appropriate speech perception testing in English |
Country | Name | City | State |
---|---|---|---|
United States | Lurie Children's Hospital | Chicago | Illinois |
Lead Sponsor | Collaborator |
---|---|
Ann & Robert H Lurie Children's Hospital of Chicago | Med-El Corporation |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Evaluate the effectiveness of MED-EL cochlear implants for newly implanted children | Little Ears Auditory Questionnaire (LEAQ) total Score will be 25 or greater (out of 35 total points) for subjects who lacked the requisite language to complete MLNT/LNT testing pre-operatively. | 12 months | |
Primary | Improvement in percentage in the MLNT/LNT testing | Improvement of 10 percentage points or greater in the Multi-Syllabic Lexical Neighborhood Test/ Lexical Neighborhood Test (MLNT/LNT) testing in the individual implanted ear(s) post-operatively, compared to pre-operative scores with hearing aids. | 12 months | |
Secondary | Compare post-operative outcomes with the MED-EL SYNCHRONY/SYNCHRONY 2 Cochlear Implant System to pre-operative performance with appropriately fit hearing aids | Look at the change from baseline in Total Score on the LittlEARS Auditory Questionnaire (LEAQ) at 12 months post-activation in the everyday listening condition. The LEAQ is a 35-item parent questionnaire available in 40 languages that has been studied extensively and validated in a number of languages, including American English and Spanish. A Total Score of 25 or greater on the LEAQ is a primary effectiveness endpoint for subjects who lack the requisite language to complete open-set word recognition testing pre-operatively. The LEAQ will be administered pre-operatively, at initial activation and at one, three, six, and twelve months post-activation for all subjects until ceiling performance is reached. Ceiling performance is defined as = 33/35 on the LEAQ. | 12 months | |
Secondary | Compare post-operative outcomes with the MED-EL SYNCHRONY/SYNCHRONY 2 Cochlear Implant System to pre-operative performance with appropriately fit hearing aids. | Look at the change from baseline in Total Score on the Auditory Skills Questionnaire (ASC) at 12 months post-activation in the everyday listening condition. The ASC is a 35-item checklist that incorporates both family and clinician observations. It is administered in an interview format by the clinician and showed "excellent validity when compared to the commonly used [Infant-Toddler Meaningful Auditory Integration Scale] IT-MAIS". ASC will be administered pre-operatively, at initial activation and at one, three, six, and twelve months post-activation for all and = 65/70 on the ASC. | 12 months | |
Secondary | Compare post-operative outcomes with the MED-EL SYNCHRONY/SYNCHRONY 2 Cochlear Implant System to pre-operative performance with appropriately fit hearing aids | Percent change from baseline on a hierarchy of developmentally-appropriate measures of word and sentence recognition in the implanted ear(s), including the ESP, MLNT, LNT, CNC, Pediatric AzBio in quiet and noise | 12 months |
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