Deafness Clinical Trial
Official title:
Development and Assessment of Listener-tailored Programming for Cochlear Implant Listeners
Despite the success of cochlear implants, devices surgically placed in the inner ears of patients with severe hearing loss, there remains substantial variability in the overall speech perception outcomes for the children and adults who receive them. The main goals of this project are: i) to improve our understanding of how cochlear implants affect the developing auditory system, ii) apply that knowledge to test new methods for programming children and adults, and iii) to study how long it takes listeners to adapt to new cochlear implant programs over the short- and long-term. The results will improve our understanding of how the deafened auditory system develops with cochlear implant stimulation and advance clinical practice to improve hearing outcomes in cochlear implant listeners.
Status | Recruiting |
Enrollment | 200 |
Est. completion date | March 31, 2027 |
Est. primary completion date | March 31, 2027 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 6 Months and older |
Eligibility | Inclusion Criteria: Research Subjects with a Cochlear Implant ADULTS Inclusion Criteria - Adult at least 18 years old - Native speakers of American English - Wears a cochlear implant manufactured by Advanced Bionics (Clarion Hi-Focus I or newer), Cochlear, or MED-EL CHILDREN Inclusion Criteria - Children at least 6 months old - Native speakers of American English - Wears a cochlear implant manufactured by Advanced Bionics (Clarion Hi-Focus I or newer), Cochlear, or MED-EL - For both children and adults with a cochlear implant, some study criteria might pertain to a subset of subjects, such as a specific age at which the subjects developed a hearing loss, or was implanted. Exclusion Criteria: Exclusion for all Cochlear Implant Subjects: - Inability to provide informed consent - Does not meet the inclusion criteria for a specific study protocol, such as age of onset of hearing loss, age of cochlear implantation, duration of deafness, number of active electrodes in the cochlear implant device - Unable to carry out the study protocol or tasks required in the study Exclusion for all Normal Hearing Subjects: - Inability to provide informed consent - Hearing loss, or significant history of hearing related issues - Unable to carry out the study protocol or tasks required in the study |
Country | Name | City | State |
---|---|---|---|
United States | Mass Eye and Ear | Boston | Massachusetts |
United States | Boston Children's Hospital | Waltham | Massachusetts |
Lead Sponsor | Collaborator |
---|---|
Massachusetts Eye and Ear Infirmary | Boston Children's Hospital, University of Washington |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Slopes of the spread of excitation of the electrically evoked compound action potential responses | Responses of the auditory nerve can be measured directly from the cochlear implant using software developed by the implant manufacturer. By changing the distance between two electrodes, we can quantify the spread of activation in the cochlea. | Baseline | |
Primary | Slopes of a behavioral measure of spectral resolution called psychophysical tuning curves. | A behavioral test designed to measure how spectral information is processed in the auditory system. By changing the relationship between a masker and target signal, we can assess resolution. | Baseline | |
Primary | Changes in vowel identification scores | Medial vowel identification performance in background noise. Participants will complete age-appropriate testing. | Baseline and weekly for 10 weeks after the intervention | |
Primary | Changes in sentence recognition scores | Speech perception testing includes sentence recognition in noise. Participants will complete age-appropriate testing. | Baseline and weekly for 10 weeks after the intervention | |
Primary | Changes in speech-gap detection thresholds | Speech perception testing includes speech-gap detection. Participants will complete age-appropriate testing. | Baseline and weekly for 10 weeks after the intervention | |
Primary | Changes in phoneme discrimination scores | Speech perception testing includes phoneme discrimination. Participants will complete age-appropriate testing. | Baseline and weekly for 10 weeks after the intervention | |
Primary | Changes in time (weeks) with programming strategy | Outcome measures will be obtained at weekly intervals during the intervention, and the weekly collection of those measures will be analyzed. | Baseline and weekly for 10 weeks after the intervention | |
Secondary | Age | A secondary age analysis on all outcome measures will be applied. | Age at baseline | |
Secondary | Infant-Toddler Meaningful Auditory Integration Scale (ITMAIS) scores | The IT-MAIS is a study-team-guided parental report about how infants and toddlers are responding to sound. | Baseline, and weekly for 10 weeks after the intervention | |
Secondary | Macarthur-Bates vocabulary inventory scores | This test allows the study team and parents to monitor speech and language development, specifically new word learning. | Baseline, and weekly for 10 weeks after the intervention | |
Secondary | Hearing quality of life (HEARQL) scores | The HEAR-QL is a self-assessment test normed for children to assess how they hear in everyday life with different interventions | Baseline, 5 weeks, and 10 weeks after the intervention | |
Secondary | Sound quality questionnaire | Participants will be asked to rate sound quality with different interventions in comparison to their everyday listening on a 7-point scale (from minus 3 - much worse, up to plus 3 - much better, 0 is the same) | Baseline and weekly for 10 weeks after the intervention |
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