Sensory Function in Idiopathic Voice Disorders
Public ClinicalTrials.gov record NCT00001922. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This research study is designed to improve understanding about voice disorders that are due to uncontrolled muscle contractions affecting the voice box. The type of voice disorder depends on which muscles of the voice box are involved. Abductor spasmodic dysphonia may lead to a weak voice. Adductor spasmodic dysphonia may result in a strangled voice. Muscular tension dysphonia may lead to a strained voice. Some of the major goals of the study are to; 1. understand how sensation from the voice box affects voice and speech production 2. develop better ways to diagnose sensation abnormalities affecting the voice box 3. determine if patients with voice disorders differ from persons without voice disorders in the way they respond to sensory information from their voice box Researchers believe that by understanding better how sensations of the voice box are presented and how the muscles in the larynx respond to those sensations they will be able to develop better treatments for patients suffering from voice disorders. ...
Study identification
- NCT ID
- NCT00001922
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 370 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 20 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 4, 1998
- Primary completion
- Sep 13, 2009
- Completion
- Not listed
- Last update posted
- Jul 1, 2017
Started 1998
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00001922, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 1, 2017 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00001922 live on ClinicalTrials.gov.