HealthyNCT00006076
Genetic Studies of Tone Deafness
An observational study of Healthy and Tone Deafness, run by National Institute on Deafness and Other Communication Disorders (NIDCD) at 1 site in United States.
Trial summary
This study will examine the hereditary basis of tone deafness by identifying regions of the human genome linked to this condition. Both exceptionally good pitch recognition (perfect pitch) and exceptionally poor pitch recognition (tone deafness) run in families. Read more about this study
- Who is it for?
- Ages 15 years and older
- Conditions the study is for
- Healthy, Tone Deafness
- How many people
- 968 participants
- Where
- 1 siteUnited States
- Study dates
- 26 Jul 2000to 29 Jun 2010
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Individuals over the age of 15.
- This study includes both males and females, and includes members of all racial and ethnic groups. This study includes both normal and tune deaf individuals, as well as individuals that may have intermediate scores on the Distorted Tunes Test, indicating a status between completely tune deaf and normal.
Who cannot join
- Hearing impaired individuals, as first estimated by a score of 25 or greater on the American Academy of Otolaryngology's 5 Minute Hearing Test, or subsequently by audiological exam.
- Cognitively impaired individuals.
- Family members in families where only one person exhibits tune deafness.
- Individuals currently using psychoactive medication.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: Genetic Studies of Tune Deafness
This study will examine the hereditary basis of tone deafness by identifying regions of the human genome linked to this condition. Both exceptionally good pitch recognition (perfect pitch) and exceptionally poor pitch recognition (tone deafness) run in families. A better understanding of what causes tone deafness may provide new insights into auditory (hearing) function.
Individuals with two or more family members 15 years of age or older who are tone deaf or have trouble recognizing different melodies may be eligible for this study. Candidates will be screened with a short listening test for pitch and a short written test. Those identified with poor pitch recognition will fill out a brief questionnaire about their family tree and family members (without identifying names) who have trouble recognizing melodies or tones. Individuals with poor pitch recognition will be asked to help contact family members who may be interested in participating.
Members of families with two or more first-degree relatives (parents, grandparents, siblings) who are tone deaf may enroll in the study. They will provide a blood sample (about 2 tablespoons) for genetic studies and may take a 20-minute hearing test using headphones.
Read the detailed description
The primary goal of this study is to identify regions of the genome which show genetic linkage to deficits in pitch recognition. Pitch recognition in subjects will be tested to identify individuals and families with poor pitch recognition, known as tune deafness, defined as the inability to recognize wrong notes in a popular melody. We will undertake a 2-stage process, first a screening to identify probands, and secondly a full family ascertainment and enrollment. Probands and family members will be given an auditory and verbal attention test, and additions listening tests to measure aspects of center auditory processing and attention. Family phenotypic data will be used for additional epidemiological studies of tune deafness. Affected and unaffected members of families containing multiple tune deaf individuals will have 20 cc of blood drawn to obtain DNA. These DNA samples will then be genotyped using markers distributed across the human genome, and the genotypic information analyzed to determine which markers show linkage to tune deafness. Genetic linkage is the initial step in the process of positional cloning, and cloning the defective genes which underlie tune deafness is a long term goal of this research.
- Conditions
- Healthy, Tone Deafness
- Keywords
- Hearing, Auditory Processing, Pitch Recognition, Tone Deafness, Tune Deafness, HV, Deafness, Congenital Amusia, Healthy Volunteer
- Medical subject headings
- Tune Deafness, Deafness
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Jul 2000 (estimated)
- Study start26 Jul 2000
- Study completion29 Jun 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 968 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00006076
- Sponsor's protocol ID
- 000176
- Other IDs
- 00-DC-0176
- Status last verified
- 29 Jun 2010
- First submitted
- 28 Jul 2000
- Last updated
- 2 Jul 2017
- Results posted
- No
Publications
Profita J, Bidder TG. Perfect pitch. Am J Med Genet. 1988 Apr;29(4):763-71. doi: 10.1002/ajmg.1320290405.
PubMed 3400722Wightman FL, Green DM. The perception of pitch. Am Sci. 1974 Mar-Apr;62(2):208-15. No abstract available.
PubMed 4815736Baharloo S, Johnston PA, Service SK, Gitschier J, Freimer NB. Absolute pitch: an approach for identification of genetic and nongenetic components. Am J Hum Genet. 1998 Feb;62(2):224-31. doi: 10.1086/301704.
PubMed 9463312
Study at a glance
From the registry record, last updated by the sponsor on 2 Jul 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Genetic Studies of Tune Deafness
- ClinicalTrials.gov ID
- NCT00006076
- Acronym / sponsor ID
- 000176
- Conditions
- Healthy, Tone Deafness
- Keywords
- Hearing, Auditory Processing, Pitch Recognition, Tone Deafness, Tune Deafness, HV, Deafness, Congenital Amusia
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 968 participants (actual)
- Lead sponsor
- National Institute on Deafness and Other Communication Disorders (NIDCD)US National Institutes of Health
- Study start
- 26 Jul 2000
- Study completion
- 29 Jun 2010
- First posted
- 31 Jul 2000 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will examine the hereditary basis of tone deafness by identifying regions of the human genome linked to this condition. Both exceptionally good pitch recognition (perfect pitch) and exceptionally poor pitch recognition (tone deafness) run in families. A better understanding of what causes tone deafness may provide new insights into auditory (hearing) function.
Individuals with two or more family members 15 years of age or older who are tone deaf or have trouble recognizing different melodies may be eligible for this study. Candidates will be screened with a short listening test for pitch and a short written test. Those identified with poor pitch recognition will fill out a brief questionnaire about their family tree and family members (without identifying names) who have trouble recognizing melodies or tones. Individuals with poor pitch recognition will be asked to help contact family members who may be interested in participating.
Members of families with two or more first-degree relatives (parents, grandparents, siblings) who are tone deaf may enroll in the study. They will provide a blood sample (about 2 tablespoons) for genetic studies and may take a 20-minute hearing test using headphones.
Detailed description
The primary goal of this study is to identify regions of the genome which show genetic linkage to deficits in pitch recognition. Pitch recognition in subjects will be tested to identify individuals and families with poor pitch recognition, known as tune deafness, defined as the inability to recognize wrong notes in a popular melody. We will undertake a 2-stage process, first a screening to identify probands, and secondly a full family ascertainment and enrollment. Probands and family members will be given an auditory and verbal attention test, and additions listening tests to measure aspects of center auditory processing and attention. Family phenotypic data will be used for additional epidemiological studies of tune deafness. Affected and unaffected members of families containing multiple tune deaf individuals will have 20 cc of blood drawn to obtain DNA. These DNA samples will then be genotyped using markers distributed across the human genome, and the genotypic information analyzed to determine which markers show linkage to tune deafness. Genetic linkage is the initial step in the process of positional cloning, and cloning the defective genes which underlie tune deafness is a long term goal of this research.
Study design
Who may qualify
- Ages
- 15 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (2 listed)
- Individuals over the age of 15.
- This study includes both males and females, and includes members of all racial and ethnic groups. This study includes both normal and tune deaf individuals, as well as individuals that may have intermediate scores on the Distorted Tunes Test, indicating a status between completely tune deaf and normal.
Key exclusion criteria (4 listed)
- Hearing impaired individuals, as first estimated by a score of 25 or greater on the American Academy of Otolaryngology's 5 Minute Hearing Test, or subsequently by audiological exam.
- Cognitively impaired individuals.
- Family members in families where only one person exhibits tune deafness.
- Individuals currently using psychoactive medication.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jul 2017.
- Background: PubMed 3400722Profita J, Bidder TG. Perfect pitch. Am J Med Genet. 1988 Apr;29(4):763-71. doi: 10.1002/ajmg.1320290405.
- Background: PubMed 4815736Wightman FL, Green DM. The perception of pitch. Am Sci. 1974 Mar-Apr;62(2):208-15. No abstract available.
- Background: PubMed 9463312Baharloo S, Johnston PA, Service SK, Gitschier J, Freimer NB. Absolute pitch: an approach for identification of genetic and nongenetic components. Am J Hum Genet. 1998 Feb;62(2):224-31. doi: 10.1086/301704.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Healthy and Tone Deafness, run by National Institute on Deafness and Other Communication Disorders (NIDCD) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00006076, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2017.