Evaluation of Speech-in-noise Performance in Cochlear Implant Recipients With a CROS Device on the Contralateral Ear

Hearing Loss, Sensorineural Clinical Trial

Official title:

Evaluation of Speech-in-noise Performance in Cochlear Implant Recipients Using Either a Conventional Hearing Aid or a CROS Device on the Contralateral Ear

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03867396
• Other study ID #: 18-1101
• Status: Completed
• Phase: N/A
• Start date: January 23, 2019
• Est. completion date: February 11, 2021

Study information

• Verified date: April 2022
• Source: University of Colorado, Denver
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Speech understanding in noise remains the greatest challenge for people using cochlear implants, particularly when the speech of interest comes from the side of the head opposite to the implant. Recent findings in hearing technology allow for people to either use a hearing aid or a Contralateral Routing of Signal (CROS) device on the non-implanted ear. Differences in speech understanding may result depending on the device chosen by a person, and these differences may be measureable through speech discrimination measurement methods.

This study intends to determine whether or not a CROS device improves speech perception in noise when the source of the speech of interest originates from the side of the head opposite to the implant.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: February 11, 2021
• Est. primary completion date: February 11, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 89 Years

Eligibility

Inclusion Criteria*:

• An Advanced Bionics cochlear implant recipient with at least 6 months of listening experience

• Low frequency Pure Tone Audiometry (PTA)

Exclusion Criteria*:

• Non-English speakers

• Additional Inclusion and Exclusion criteria apply

Related Conditions & MeSH terms

• Deafness
• Hearing Loss
• Hearing Loss, Sensorineural

Intervention

Device:
• CROS
Advanced Bionics CROS
• Hearing Aid
Advanced Bionics Naida hearing aid

Other:
• Cochlear Implant Alone
No hearing device on contralateral ear

Locations

Country	Name	City	State
United States	University of Colorado School of Medicine	Aurora	Colorado

Sponsors (1)

Lead Sponsor	Collaborator
University of Colorado, Denver

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Cochlear Implant: Signal to Noise Ratio (SNR) Threshold Obtained From IEEE (Speech Perception in Noise Test) Sentence in Noise Test.	The IEEE test allows a researcher to evaluate how well a subject understands sentences in noisy situations. Primary Outcome #1 will assess how well the listener can hear with his/her cochlear implant. The listener will be tested without a contralateral device versus also wearing a contralateral device while listening to sentences coming from various directions along with competing noise coming from various directions. The directions of the sentences or noise are as follows: Omni: from all directions; Ipsi: the same side; Front; Contra: Contralateral, from the opposite side of the implant Visits are flexible, based on participant preference and may be completed any time between enrollment and end of study. Testing takes about 12 minutes.	12 minutes
Primary	CI CROS: Signal to Noise Ratio (SNR) Threshold Obtained From IEEE (Speech Perception in Noise Test) Sentence in Noise Test.	The IEEE test allows a researcher to evaluate how well a subject understands sentences in noisy situations. Primary Outcome #2 will assess how well the listener can hear wearing his/her cochlear implant and a CROS (Contralateral Routing of Signals device). A CROS is a device on the opposite ear that sends the nose to the cochlear implant. The listener will be tested without a contralateral device versus also wearing a contralateral device while listening to sentences coming from various directions along with competing noise coming from various directions. The directions of the sentences or noise are as follows: Omni: from all directions; Ipsi: the same side; Front; Contra: Contralateral, from the opposite side of the implant Visits are flexible, based on participant preference and may be completed any time between enrollment and end of study. Testing takes about 12 minutes.	12 minutes
Primary	CI HA: Signal to Noise Ratio (SNR) Threshold Obtained From IEEE (Speech Perception in Noise Test) Sentence in Noise Test.	The IEEE test allows a researcher to evaluate how well a subject understands sentences in noisy situations. Primary Outcome #3 will assess how well the listener can hear wearing his/her cochlear implant and hearing aid. The listener will be tested without a contralateral device versus also wearing a contralateral device while listening to sentences coming from various directions along with competing noise coming from various directions. The directions of the sentences or noise are as follows: Omni: from all directions; Ipsi: the same side; Front; Contra: Contralateral, from the opposite side of the implant Visits are flexible, based on participant preference and may be completed any time between enrollment and end of study. Testing takes about 12 minutes.	12 minutes