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Effectiveness of P02 Digital Hearing Aids (P02)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2014 by Kwanchanok Yimtae, M.D., Khon Kaen University.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
Kwanchanok Yimtae, M.D., Khon Kaen University Identifier:
First received: October 1, 2012
Last updated: April 17, 2014
Last verified: April 2014
To test the effectiveness of body-worn, digital hearing aids, model 02 which is developed by the National Electronics and Computer Technology Center, Thailand.

Condition Intervention Phase
Hearing Loss, Bilateral
Sensorineural Hearing Loss
Procedure: Hearing Aids Evaluation
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Health Services Research
Official Title: Effectiveness of NECTEC Model, Body-worn, Digital Hearing Aids and Cost of Screening and Hearing Aids Service in Elders

Resource links provided by NLM:

Further study details as provided by Kwanchanok Yimtae, M.D., Khon Kaen University:

Primary Outcome Measures:
  • functional gain [ Time Frame: Immediate after hearing aids fitting ]
    Different of hearing threshold between aids and un-aids

Secondary Outcome Measures:
  • Satisfaction [ Time Frame: immediate after hearing aids fitting ]
    Sound quality satisfaction

Estimated Enrollment: 100
Study Start Date: October 2012
Estimated Study Completion Date: September 2014
Estimated Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Hearing Aids, Model P02
A body-worn, local made, digital hearing aids Hearing Aids evaluation
Procedure: Hearing Aids Evaluation
Functional Gain Sound field Speech Audiometry
Other Name: Functional Gain
Active Comparator: Other hearing aids
Other Hearing Aids, Hearing Aids Evaluation
Procedure: Hearing Aids Evaluation
Functional Gain Sound field Speech Audiometry
Other Name: Functional Gain

Detailed Description:
Hearing aids distribution and service system are limited accessed in hearing disabled people in developing countries. The local-made, body-worn, digital hearing aids is developed by the National Electronics and Computer Technology Center, Thailand. The effectiveness of this model will be compares with other standard body-worn, hearing aids in community elders. The functional gain, quality of sound, customers' satisfaction, and quality of life (EQ-5D, HHIE, HUI-3, IOI-HA) are main outcomes.The cost of Screening and hearing aids will be also investigated. The validity and reliability of several tools used such as the Thai-Hearing Handicap Inventory for elderly (HHIE) questionnaire, Music Test, Thai-Five Minute Hearing Test, and Khon Kaen Hearing Aids Evaluation are also studied.

Ages Eligible for Study:   60 Years to 90 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • older than 60 years
  • bilateral sensorineural hearing loss
  • PTA (0.5-2 KHz) of better ear > 40 DB but <75 dB
  • no deformity of pinna and ear canal
  • new or unexperienced hearing aids user
  • can communicate with Thai or local language

Exclusion Criteria:

  • speech discrimination <40%
  • suspected of retrocochlear lesion
  Contacts and Locations
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Please refer to this study by its identifier: NCT01902914

Phu Wieng district Recruiting
Khon Kaen, Thailand
Contact: Kwanchanok Yimtae, MD    6643348396   
Principal Investigator: Kwanchanok Yimtae, MD         
Sub-Investigator: Panida Thanawirattananit, MA         
Sub-Investigator: Pornthep Kasemsiri, MD         
Sub-Investigator: Pipop Siripaopradit, MD         
Sub-Investigator: Puttaravoot Watanasarp, MD         
Sub-Investigator: Supawan Laohasiriwong, MD         
Sub-Investigator: Printaporn KingKaew, M.Sc.         
Sub-Investigator: Pasin Isarasaena, Ph.D         
Sub-Investigator: Anukool Noimai, M.Eng         
Sponsors and Collaborators
Khon Kaen University
Principal Investigator: Kwanchanok Yimtae, MD Khon Kaen University
  More Information

Responsible Party: Kwanchanok Yimtae, M.D., Assoc. Prof. Kwanchanok Yimtae, Khon Kaen University Identifier: NCT01902914     History of Changes
Other Study ID Numbers: HE551268
Study First Received: October 1, 2012
Last Updated: April 17, 2014

Keywords provided by Kwanchanok Yimtae, M.D., Khon Kaen University:
hearing aids
hearing disability
hearing aids service

Additional relevant MeSH terms:
Hearing Loss
Hearing Loss, Sensorineural
Hearing Loss, Bilateral
Hearing Disorders
Ear Diseases
Otorhinolaryngologic Diseases
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on May 25, 2017