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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03036410
Other study ID # AK-KEK-2016-01853
Secondary ID
Status Completed
Phase N/A
First received January 16, 2017
Last updated September 5, 2017
Start date February 1, 2017
Est. completion date August 21, 2017

Study information

Verified date August 2017
Source Advanced Bionics AG
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Communication on telephone is challenging for people with hearing loss. For hearing aid users, for instance, the inventions for improving speech intelligibility on the phone range from an integrated tele coil and individual hearing programs to specially designed phone devices. No formal studies involving these devices have been carried out with CI users.

Thus, this comparative study includes hearing aid as well as CI and bimodal users to evaluate different hearing solutions for communication on telephone in terms of intelligibility and ease of use.


Description:

Communication on telephone is challenging for people with hearing loss, due to a number of factors:

- The lack of visual cues (lip-reading),

- The lack of binaural abilities,

- The presence of (loud) background noise in a variety of listening situations,

- A modified speech signal due to reduced frequency bandwidth and

- Difficulties coupling the phone to the CI. For hearing aid users, for instance, the inventions for improving speech intelligibility on the phone range from an integrated tele coil and individual hearing programs to specially designed phone devices.

No formal studies involving these devices have been carried out with CI users.

Thus, this comparative study includes hearing aid as well as CI and bimodal users to evaluate the different hearing solutions for communication on telephone in terms of intelligibility and ease of use:

- Phonak DECT - cordless telephone for HA-, CI- users and bimodal users

- Phonak EasyCall - accessories for Bluetooth capable mobile telephones for HA-, CI- and bimodal users

- Phonak DuoPhone - streaming function, which provides the speech signal to both ears


Recruitment information / eligibility

Status Completed
Enrollment 25
Est. completion date August 21, 2017
Est. primary completion date August 21, 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria:

- Unilateral HA users with SRT of better (lower) than + 3 dB

- Bilateral HA users with SRT of better (lower) than 0 dB

- Unilateral CI users:

Unilaterally implanted with an Advanced Bionics CII, HiRes90k or Advantage implant

1-year acclimatization time after implantation at least 20% correct for a sentence test delivered with a SNR of + 10 dB, or a SRT of better (lower) than + 15 dB

- Bimodal (CI + HA) users:

Unilaterally implanted with an Advanced Bionics CII, HiRes90k or Advantage implant CI side: at least 20% correct for a sentence test delivered with a SNR of + 10 dB, or a SRT of better (lower) than + 15 dB HA side: unaided threshold = 80 dB at least for frequencies up to 500 Hz

- All users:

Informed Consent as documented by signature Ability for speech understanding in the presence of competing noise without any assistance from lip-reading Ability to give subjective feedback in a certain listening situation First language: German or Swiss-German

Exclusion Criteria:

- All users:

Difficulties additional to hearing impairment that would interfere with the study procedures Acute inflammation or pain in head-/neck area Dizziness Age of participants < 18 years Age of participants > 80 years

Study Design


Intervention

Device:
standard telephone setting
without streaming function
DECT
cordless telephone (streaming to both hearing devices)
EasyCall
accessories for Bluetooth capable mobile telephones (streaming to both hearing devices)
DuoPhone
streaming function, which provides the speech signal to both ears

Locations

Country Name City State
Switzerland University Hospital Zurich, Department of Otorhinolaryngology, Head and Neck Surgery Zurich

Sponsors (2)

Lead Sponsor Collaborator
Advanced Bionics AG Advanced Bionics

Country where clinical trial is conducted

Switzerland, 

References & Publications (5)

Adams JS, Hasenstab MS, Pippin GW, Sismanis A. Telephone use and understanding in patients with cochlear implants. Ear Nose Throat J. 2004 Feb;83(2):96, 99-100, 102-3. — View Citation

Anderson I, Baumgartner WD, Böheim K, Nahler A, Arnoldner C, D'Haese P. Telephone use: what benefit do cochlear implant users receive? Int J Audiol. 2006 Aug;45(8):446-53. Erratum in: Int J Audiol. 2006 Oct;45(10):617. Arnolder, Christoph [corrected to Arnoldner, Christoph]. — View Citation

Cray JW, Allen RL, Stuart A, Hudson S, Layman E, Givens GD. An investigation of telephone use among cochlear implant recipients. Am J Audiol. 2004 Dec;13(2):200-12. — View Citation

Picou EM, Ricketts TA. Comparison of wireless and acoustic hearing aid-based telephone listening strategies. Ear Hear. 2011 Mar-Apr;32(2):209-20. doi: 10.1097/AUD.0b013e3181f53737. — View Citation

Picou EM, Ricketts TA. Efficacy of hearing-aid based telephone strategies for listeners with moderate-to-severe hearing loss. J Am Acad Audiol. 2013 Jan;24(1):59-70. doi: 10.3766/jaaa.24.1.7. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary speech reception threshold (SRT) assessment with audiological measures differences in speech reception threshold (SRT) on the phone in the presence of background noise between the Phonak DECT phone and a standard phone will be assessed with audiological measures. 6 months
Secondary Subjective ratings assessment with scaling differences in preference ratings in the presence of background noise between a standard phone, a standard phone + DuoPhone algorithm, the DECT-telephone
differences in preference ratings in the presence of background noise between a standard mobile phone, a standard mobile phone + DuoPhone algorithm and a standard mobile phone + EasyCall accessory
6 months