NCT05325450

Brief Summary

In the past two decades, the selection criteria for cochlear implantation have been greatly relaxed so that about 60-70% of present cochlear implant (CI) candidates have significant residual hearing in their contralateral ear. However, contralateral hearing is often not considered in rehabilitation programs, mainly due to the lack of scientific evidence on the role it may play. The present project aims to better understand the mechanisms of perceptual learning of CI-processed speech after implantation and to develop and test rehabilitation strategies for CI users.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2023

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 1, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 13, 2022

Completed
1.1 years until next milestone

Study Start

First participant enrolled

May 18, 2023

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 18, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 18, 2025

Completed
Last Updated

August 24, 2023

Status Verified

August 1, 2023

Enrollment Period

1.7 years

First QC Date

March 1, 2022

Last Update Submit

August 22, 2023

Conditions

Keywords

deafness, cochlear implant

Outcome Measures

Primary Outcomes (1)

  • The primary outcome is the percentage of correct speech recognition after training between the two training programs

    Month 12

Study Arms (3)

Training A

EXPERIMENTAL

Training A in Unilaterally postlingually-deafened adult cochlear implanted candidates

Procedure: Program A

Training B

EXPERIMENTAL

Training B in Unilaterally postlingually-deafened adult cochlear implanted candidates

Procedure: Program B

Control

ACTIVE COMPARATOR

Training in bilaterally postlingually-deafened adult cochlear implanted candidates

Procedure: Control

Interventions

Program APROCEDURE

Presentation of the sentence to the implant alone

Training A
Program BPROCEDURE

Presentation of the sentence to the implanted ear, associated for the non-implanted ear

Training B
ControlPROCEDURE

Presentation of the sentences alternately to the most recently implanted ear and both implanted ears at the same time

Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age\>18
  • Unilaterally postlingually-deafened adult cochlear implanted candidates (IC-Uni)
  • Person with almost normal or moderate contralateral hearing ( under 60dB)
  • Cochlear implanted person whose activation has not yet been performed
  • Cochlear implanted subjects with bilateral post-lingual profound deafness, who already benefit from a unilateral cochlear implant and candidates to a bilateral cochlear implant
  • Affiliated to social security

You may not qualify if:

  • \- Subjects under juridical protections or tutelage measure
  • Subjects with associated neurological or neurodegenerative conditions
  • Significant anatomical changes on CT scan of the temporal bone that may interfere with the insertion of the cochlear implant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Marx

Toulouse, France

RECRUITING

MeSH Terms

Conditions

Hearing LossDeafness

Interventions

Medicare Part A

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

MedicareMedical AssistancePublic AssistanceFinancing, GovernmentFinancing, OrganizedEconomicsHealth Care Economics and OrganizationsInsurance, HealthInsuranceLegislation as TopicSocial Control, Formal

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: two within-subject crossover experiments (short-term and long-term) where each subject will follow two phases of the protocol (training A and training B).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 1, 2022

First Posted

April 13, 2022

Study Start

May 18, 2023

Primary Completion

January 18, 2025

Study Completion

January 18, 2025

Last Updated

August 24, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations