NCT03379870

Brief Summary

Purpose: Routine clinical care and pilot study data has shown evidence of postoperative hearing preservation in pediatric cochlear implant (CI) recipients. The primary aim of this study is to investigate speech perception performance in pediatric CI recipients with functional pre-operative hearing. Participants: Two cohorts of CI recipients aged 6 through 17 years who had pre-operative low frequency residual hearing. Subjects in Arm 1 (EAS Arm; electric-acoustic stimulation) will present with a post-operative low frequency pure tone average (125, 250, and 500 Hz) of ≤ 75 dB HL, and those in Arm 2 (FES Arm; full-electric stimulation) will present with a post-operative low frequency pure tone average (LFPTA) that exceeds 75 dB HL. Procedures (methods): Subjects will complete speech perception and quality of life testing during post-operative intervals. Subjects in the EAS Arm will be evaluated with combined electric-acoustic stimulation (EAS). Subjects in FES Arm will be evaluated with FES alone.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 15, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 20, 2017

Completed
5 months until next milestone

Study Start

First participant enrolled

May 25, 2018

Completed
5.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 14, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 14, 2023

Completed
10 months until next milestone

Results Posted

Study results publicly available

October 15, 2024

Completed
Last Updated

October 15, 2024

Status Verified

May 1, 2024

Enrollment Period

5.6 years

First QC Date

December 15, 2017

Results QC Date

July 31, 2024

Last Update Submit

September 19, 2024

Conditions

Keywords

cochlear implantelectric acoustic stimulationEAShearing losspediatric

Outcome Measures

Primary Outcomes (2)

  • Mean CNC Word Scores

    The Consonant Nucleus Consonant (CNC) word list is established as a standard test of speech perception outcomes. Results for EAS and FES Arms at 12 months post stimulation will be compared. Lower scores indicate a poorer outcome and higher scores a better outcome. Scale 0 - 100%

    12 months post stimulation

  • Mean BKB-SIN SNR-50 Scores

    Sentences and babble will be presented from the same speaker. An average score known as the SNR-50 will be obtained in both conditions. The SNR-50 score is an estimate of the signal-to-noise ratio associated with 50% correct based on word-level scoring. Results for EAS and FES listeners at 12 months post stimulation will be compared. In this test, lower scores indicate a better outcome and higher scores a poorer outcome. Scores range from -6 dB to +21 dB.

    12 months post-stimulation

Secondary Outcomes (4)

  • Mean Pediatric SSQ Scores

    Baseline, 12 months post-stimulation

  • Receptive Language Scores

    12 months post-stimulation

  • Articulation Scores

    12 months post-stimulation

  • Expressive Language Scores

    12 months post-stimulation

Study Arms (2)

EAS Arm

EXPERIMENTAL

Subjects who receive a CI and present with a post-operative LFPTA of ≤ 75 dB HL. Electric Acoustic Speech Processor: Electric-acoustic stimulation (EAS) fitting.

Device: Electric Acoustic Speech Processor: Electric-acoustic stimulation fitting

FES Arm

EXPERIMENTAL

Subjects with pre-operative low frequency hearing who receive a CI and present with a post-operative LFPTA of \> 75 dB HL. Electric Acoustic Speech Processor: Full-electric stimulation (FES) fitting

Device: Electric Acoustic Speech Processor: Full-electric stimulation fitting

Interventions

Electric Acoustic Stimulation for children with post-operative residual low frequency hearing averages of 75 dB HL or better,

Also known as: MED-EL SONNET EAS, MED-EL SONNET 2 EAS
EAS Arm

Electric Stimulation for children with post-operative residual low frequency hearing averages of 75 dB HL or poorer and pre-operative low frequency hearing averages of 75 dB HL or better.

Also known as: MED-EL SONNET EAS, MED-EL SONNET 2 EAS
FES Arm

Eligibility Criteria

Age60 Months - 215 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Aged 5 through 17 years
  • Spoken English as the primary language (speech perception testing conducted in English).
  • Recipient of a MED-EL SYNCHRONY Cochlear Implant device.
  • Pre-operative LFPTA of ≤ 75 dB HL.
  • Willing and able to participate in study procedures.
  • Realistic parental/patient expectations.
  • Language skills judged to be adequate enough to perform study tasks.

You may not qualify if:

  • Inability to perform open set speech perception due to oral motor delays.
  • Inability to perform test battery due to behavior or cognitive impairment
  • Unwilling or unable to participate in study procedures.
  • Cochlear nerve deficiency.
  • Anatomical considerations that necessitated surgical modifications such as ossification, incomplete insertion, or placement in scala vestibuli.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Children's Cochlear Implant Center at UNC

Durham, North Carolina, 27713-6102, United States

Location

MeSH Terms

Conditions

Hearing Loss

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Lisa Park, AuD
Organization
The Children's Cochlear Implant Center at UNC

Study Officials

  • Lisa Park, AuD

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 15, 2017

First Posted

December 20, 2017

Study Start

May 25, 2018

Primary Completion

December 14, 2023

Study Completion

December 14, 2023

Last Updated

October 15, 2024

Results First Posted

October 15, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations