- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01802190
Prevalence of POU4F3 and SLC17A8 Mutations
Prevalence of POU4F3 (DFNA15) and SLC17A8 (DFNA25) Genes Mutations in Dominant Autosomal Deafness and Phenotypic Characterization of Carrier Patients.
Study Overview
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Montpellier, France, 34090
- Mondain Michel
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age > 18 years
Patients with a
suggestive neurosensory Deafness: The characteristics of the deafness will be determined from the data of the questionnaire, of the interrogation, the examination and results of the tonal audiometry.
*Neurosensory deafness: Audiometrics measurement(difference between the tonal audiometric average loss for the frequencies 0,5, 1, 2 and 4 kHz in air conduction and in osseous conduction) < 15 dB for each of both ears.
- Bilateral symetric: difference between the audiometric thresholds of both ears < or = 15 dB for at least two frequencies.
- Light to severe: The degree of deafness is defined according to the following classification (moderate hearing loss calculated on the frequencies 500 Hz, 1, 2 and 4 kHz): light hearing deficiency from 20 to 40 dB, moderate hearing deficiency of 40 to 70 dB, severe hearing deficiency of 70 in 90 dB and deep hearing deficiency beyond 90 dB.
- Whose thresholds frequency by frequency in tonal audiometry (air conduction) are superior to the thresholds of the 90th percentile of the standard ISO 7029.
- Without environmental exposition factors.
Dominant autosomal transmission diagnosed from one of the following elements:
- Deafness at a father and his son
- Deafness at a father and his daughter outside a suggestive context of a dominant form X-related. (deep deafness at the father and light to moderate deafness in daughter)
- Deafness at a mother and her daughter
- Deafness at a mother and her son outside a suggestive context of a dominant X-related(light to moderate deafness at the mother, and deep deafness at the son)
- Deafness at a patient whose a dead parent had a sure or likely deafness according to the criteria of diagnosis mentioned previously
- given the consent to participate at this clinical study
Exclusion Criteria:
- Suggestive symptom of a polymalformative syndrom
- familial Consanguinity
- Age < 18 years
- Deafness of transmission or mixed
- Deafness of asymmetric or fluctuating perception
- Prelingual deep Deafness
- Pathology of the ear (otospongiose, disease of Ménière, neurinome of the acoustics)
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Deafness patients
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SLC17A8 et POU4F3 mutations genes analysis on blood samples of deafness patients.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
SLC17A8 et POU4F3 mutations genes analysis
Time Frame: up to 1 year
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The mutations will be screened by direct sequencing
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up to 1 year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Phenotypic characterization of the carrier patients
Time Frame: up to 1 year
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The phenotypic characterization will be assessed by usual tests for genetic deafness (audiometry, electro-physiological explorations)
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up to 1 year
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Michel MONDAIN, PU-PH, CHRU Montpellier
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 8640
- 2010-A00561-38 (OTHER: ID-RCB)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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