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NCT00147940 · ClinicalTrials.gov registry record · Phase 4
Correlation of Nasal Volume, Cross-Sectional Area With Nasalance Scores Measured by Acoustic Rhinometry and Nasometry
A Phase 4 study, sponsored by University of Chicago.
- Terminated
- Registry status
- Phase 4
- Development phase
- 20
- Enrollment target
NCT00147940: Clinical Trial Phase 4 study, sponsored by University of Chicago.
NCT00147940 is a Phase 4 study that was terminated before completion, run by University of Chicago. The registered enrollment target is 20 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00147940, a Phase 4 study, was terminated before completion, sponsored by University of Chicago.
- TERMINATED
- Registry status
- Phase 4
- Development phase
- 20 participants
- Enrollment target
Study Summary
The purpose of our study is to correlate nasal volume and cross-sectional area with nasalance scores. We will measure nasal volume and cross-sectional area with acoustic rhinometry. Nasalance scores will be determined by Nasometry. Acoustic rhinometry is a means to study the volume and cross-sectional areas of the nasal cavity in a non-invasive, rapid, convenient and reliable manner. Acoustic rhinometry has the unique advantage of being completely non-invasive, and thus is able to measure nasal patency without the confounding effects of probes or invasive monitoring. Nasometry is a technique to measure the oral and nasal components of nasalance. Nasalance is the objective measure of the nasal component of speech that is determined by the ratio of sound pressure emitted from the nasal and oral cavities during speech. Nasality is the term used to characterize the nasal component of speech, and is a subjective measure. Eleven healthy subjects underwent acoustic rhinometry pre and post decongestion using oxymetazoline 0.05% nasal spray. Nasalance scores were based on the readings of three passages: rainbow, zoo, and nasal.
Interventions
- PROCEDURE Acoustic rhinometry (procedure)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 20 participants |
| Start Date | 2004-04 |
| Est. Completion | 2005-08 |
| Phase | Phase 4 |
Why NCT00147940 stopped before completion
NCT00147940 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower).
The record links to 0 conditions, and to 1 intervention - of which Acoustic rhinometry (procedure) is the first listed.
NCT00147940 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00147940 about?
NCT00147940 is a clinical study titled "Correlation of Nasal Volume, Cross-Sectional Area With Nasalance Scores Measured by Acoustic Rhinometry and Nasometry". The purpose of our study is to correlate nasal volume and cross-sectional area with nasalance scores. We will measure nasal volume and cross-sectional area with acoustic rhinometry. Nasalance scores will be determined by Nasometry. Acoustic rhinometry is a means to study the volume and cross-sectio...
What is the current status of trial NCT00147940?
This trial is currently terminated. It is a Phase 4 study. The enrollment target is 20 participants. The study started on 2004-04. Estimated completion is 2005-08.
What interventions are being tested in trial NCT00147940?
The interventions under investigation include: Acoustic rhinometry (procedure) (PROCEDURE).
Who is sponsoring clinical trial NCT00147940?
This trial is sponsored by University of Chicago, which has 796 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00147940's enrollment target sits among peer trials
20 1753rd of 2000 higher than 167 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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