NCT00784043

Brief Summary

The purpose of this study is to evaluate and document longitudinal efficacy in young children implanted bilaterally with MED-EL COMBI 40+ / PULSARCI100/SONATATI100 cochlear implant systems.

Trial Health

60
Monitor

Trial Health Score

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

Enrollment
37

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2004

Longer than P75 for not_applicable

Geographic Reach
2 countries

9 active sites

Status
terminated

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

Study Start

First participant enrolled

March 1, 2004

Completed
4.7 years until next milestone

First Submitted

Initial submission to the registry

October 30, 2008

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 3, 2008

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2009

Completed
7.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2017

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

May 25, 2018

Completed
Last Updated

May 25, 2018

Status Verified

April 1, 2018

Enrollment Period

5.5 years

First QC Date

October 30, 2008

Results QC Date

February 20, 2018

Last Update Submit

April 26, 2018

Conditions

Keywords

Cochlear implanthearing loss

Outcome Measures

Primary Outcomes (1)

  • Longitudinal Efficacy in Young Children Implanted Bilaterally With MED-EL COMBI 40+ / PULSARCI100/SONATATI100 Cochlear Implant Systems

    Speech perception scores will be compared pre-operatively and postoperatively.

    60 months post initial stimulation

Secondary Outcomes (2)

  • Language Acquisition Over Time in Bilaterally Implanted Children.

    60 months post initial activation

  • Speech Production Over Time in Children Implanted Bilaterally With a MED-EL Cochlear Implant.

    5 years

Study Arms (2)

Bilateral

EXPERIMENTAL

Bilaterally implanted simultaneously

Device: Cochlear Implant

Unilateral

EXPERIMENTAL

Unilaterally implanted

Device: Cochlear Implant

Interventions

Bilateral Implantation in children

Also known as: MED-EL Cochlear Implant, Combi 40+, PulsarCI100, SonataTI100
BilateralUnilateral

Eligibility Criteria

Age12 Months - 36 Months
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Between 12 and 36 months of age at time of implantation
  • Profound bilateral sensorineural hearing loss
  • English as the primary language in the home
  • Realistic expectations of guardians
  • Child must be enrolled in a post-operative rehabilitative/educational program that supports the use of cochlear implants and the development of auditory-based skills
  • Willing and available to comply with all scheduled procedures as defined in the protocol
  • Audiological:
  • Profound bilateral sensorineural hearing loss with average thresholds between ears of 90 dB HL or greater at 1000 Hz and above, and must demonstrate minimal functional benefit from conventional amplification
  • Behavioral test measures must include unaided threshold measures for the right and left ears using insert earphones; left-alone and right-alone aided sound field threshold measurements; and aided and unaided speech-awareness / detection thresholds (for each ear individually)
  • Children accepted into the study must be able to demonstrate a consistent response to sound. If a child has no measurable hearing, he/she must be able to demonstrate a consistent response to vibrotactile stimuli.
  • Medical:
  • Good general health status, as judged by Primary Investigator
  • Patent cochleae bilaterally, as indicated by radiological evaluation
  • No contraindications for surgery, in general, or cochlear implant surgery in particular

You may not qualify if:

  • Prior experience with any cochlear implant system
  • Younger than 12 months or older than 36 months at time of implantation
  • Audiological: Presence of otoacoustic emissions and/or cochlear microphonic, indicating possible condition of auditory neuropathy
  • Medical:
  • Evidence of ossification that would prevent full insertion of the standard C40+ / PULSARCI100 /SONATATI100 electrode array in the cochlea(e) to be implanted, as indicated by radiological evaluation
  • Abnormal or malformed cochlea(e) to be implanted
  • Severed or non-functional auditory nerve in the ear(s) to be implanted
  • Central auditory lesion
  • Cognitive and/or neurological dysfunction
  • Auditory neuropathy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Nemours Children's Clinic

Jacksonville, Florida, 32207, United States

Location

Children's Healthcare of Atlanta

Atlanta, Georgia, 30324, United States

Location

Cleveland Clinic Foundation

Cleveland, Ohio, 44124, United States

Location

Dallas Otolaryngology Associates

Dallas, Texas, 75230, United States

Location

Callier Center

Dallas, Texas, 75235, United States

Location

Texas Children's Hospital

Houston, Texas, 77030, United States

Location

Eastern Virginia Medical School

Norfolk, Virginia, 23507, United States

Location

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Location

London Health Sciences Centre

London, Ontario, N6A 5A5, Canada

Location

Related Publications (72)

  • Kuhn-Inacker H, Shehata-Dieler W, Muller J, Helms J. Bilateral cochlear implants: a way to optimize auditory perception abilities in deaf children? Int J Pediatr Otorhinolaryngol. 2004 Oct;68(10):1257-66. doi: 10.1016/j.ijporl.2004.04.029.

    PMID: 15364496BACKGROUND
  • Nopp P, Schleich P, D'Haese P. Sound localization in bilateral users of MED-EL COMBI 40/40+ cochlear implants. Ear Hear. 2004 Jun;25(3):205-14. doi: 10.1097/01.aud.0000130793.20444.50.

    PMID: 15179112BACKGROUND
  • Schleich P, Nopp P, D'Haese P. Head shadow, squelch, and summation effects in bilateral users of the MED-EL COMBI 40/40+ cochlear implant. Ear Hear. 2004 Jun;25(3):197-204. doi: 10.1097/01.aud.0000130792.43315.97.

    PMID: 15179111BACKGROUND
  • Muller J, Schon F, Helms J. Speech understanding in quiet and noise in bilateral users of the MED-EL COMBI 40/40+ cochlear implant system. Ear Hear. 2002 Jun;23(3):198-206. doi: 10.1097/00003446-200206000-00004.

    PMID: 12072612BACKGROUND
  • Schon F, Muller J, Helms J. Speech reception thresholds obtained in a symmetrical four-loudspeaker arrangement from bilateral users of MED-EL cochlear implants. Otol Neurotol. 2002 Sep;23(5):710-4. doi: 10.1097/00129492-200209000-00018.

    PMID: 12218624BACKGROUND
  • Tyler RS, Gantz BJ, Rubinstein JT, Wilson BS, Parkinson AJ, Wolaver A, Preece JP, Witt S, Lowder MW. Three-month results with bilateral cochlear implants. Ear Hear. 2002 Feb;23(1 Suppl):80S-89S. doi: 10.1097/00003446-200202001-00010.

    PMID: 11883771BACKGROUND
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    PMID: 11140998BACKGROUND
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    PMID: 17609614BACKGROUND
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    PMID: 17086085BACKGROUND
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    PMID: 15064664BACKGROUND
  • Laback B, Pok SM, Baumgartner WD, Deutsch WA, Schmid K. Sensitivity to interaural level and envelope time differences of two bilateral cochlear implant listeners using clinical sound processors. Ear Hear. 2004 Oct;25(5):488-500. doi: 10.1097/01.aud.0000145124.85517.e8.

    PMID: 15599195BACKGROUND
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    PMID: 11951849BACKGROUND
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    PMID: 1797610BACKGROUND
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    PMID: 17473710BACKGROUND
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    PMID: 12218623BACKGROUND
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    PMID: 17823546BACKGROUND
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    PMID: 16151344BACKGROUND
  • Senn P, Kompis M, Vischer M, Haeusler R. Minimum audible angle, just noticeable interaural differences and speech intelligibility with bilateral cochlear implants using clinical speech processors. Audiol Neurootol. 2005 Nov-Dec;10(6):342-52. doi: 10.1159/000087351. Epub 2005 Aug 5.

    PMID: 16103645BACKGROUND
  • Sharma A, Dorman MF, Kral A. The influence of a sensitive period on central auditory development in children with unilateral and bilateral cochlear implants. Hear Res. 2005 May;203(1-2):134-43. doi: 10.1016/j.heares.2004.12.010.

    PMID: 15855038BACKGROUND
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    PMID: 15547426BACKGROUND
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    PMID: 15148192BACKGROUND
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    PMID: 15547421BACKGROUND
  • Seeber BU, Baumann U, Fastl H. Localization ability with bimodal hearing aids and bilateral cochlear implants. J Acoust Soc Am. 2004 Sep;116(3):1698-709. doi: 10.1121/1.1776192.

    PMID: 15478437BACKGROUND
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    PMID: 14740301BACKGROUND
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    PMID: 12579478BACKGROUND
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MeSH Terms

Conditions

Hearing Loss

Interventions

Cochlear Implants

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Neural ProsthesesImplantable NeurostimulatorsElectrodes, ImplantedElectrodesElectrical Equipment and SuppliesEquipment and SuppliesProstheses and ImplantsHearing AidsSensory Aids

Limitations and Caveats

Protocol was terminated due to inability to find unilateral matches.

Results Point of Contact

Title
Jennifer Bulls
Organization
MED-EL Corporation

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

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

Study Record Dates

First Submitted

October 30, 2008

First Posted

November 3, 2008

Study Start

March 1, 2004

Primary Completion

September 1, 2009

Study Completion

February 1, 2017

Last Updated

May 25, 2018

Results First Posted

May 25, 2018

Record last verified: 2018-04

Locations