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Mucosal CongestionPhase 4NCT00147888

Changes in Nasal Patency With Changes in Posture, Temperature, Humidity and Nasal Patency Seen by Acoustic Rhinometry

A Phase 4 study testing Acoustic rhinometry (procedure) in people with Mucosal Congestion, run by University of Chicago at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To study nasal physiologic responses to changes in posture, temperatures, humidity and nasal patency with acoustic rhinometry. Read more about this study

Who is it for?
Ages 18 to 58 yearsHealthy volunteers can take part
Conditions the study is for
Mucosal Congestion
What is being tested?
Acoustic rhinometry (procedure)
Type of treatment
Surgery or procedure
How many people
15 participants
Where
1 siteUnited States
Study dates
Mar 2004to Dec 2006
Phase
Phase 4
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 18 to 58 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy volunteers, 18-58 years old

Who cannot join

  • Any nasal symptoms in the last 3 weeks
  • Marked septal deviation/polyposis/infection
  • Any history of allergy, asthma or immunodeficiency
  • Any systemic condition or infection (e.g., hypertension/diabetes/heart, liver, thyroid or kidney disease
  • Any spine or neck condition that would not allow normal postures
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The University of Chicago

    Chicago, Illinois, 60637

Other trials in United States

About this study

Official title: Physiological Changes in Nasal Patency in Response to Changes in Posture, Temperature, Humidity and Nasal Patency Measured by Acoustic Rhinometry

To study nasal physiologic responses to changes in posture, temperatures, humidity and nasal patency with acoustic rhinometry.

Read the detailed description

The purpose of this study was to utilize acoustic rhinometry to assess changes in nasal patency after alterations in posture, unilateral mechanical obstruction, temperature, and humidity.

Eight healthy adult volunteer subjects underwent acoustic rhinometry under the following conditions: 1) upright, sitting position (control), 2) supine position, 3) left lateral recumbent position, 4) one nostril mechanically blocked, 5) icepack on neck, 6) drinking cold water, 7) drinking hot water, 8) nasal nebulizer, 9)oxymetazoline decongestant.

Changes in nasal cavity volumes were detected by acoustic rhinometry after alterations in posture, unilateral mechanical obstruction, temperature, and humidity. Nebulizer treatment and hot water ingestion caused a significant decrease in nasal volume. The nose was able to adapt to environmental and physiological changes in order to maintain a consistent total nasal volume.

Being tested
Acoustic rhinometry (procedure)
Keywords
Mucosal congestion, Acoustic rhinometry, Physiology

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Acoustic rhinometry (procedure)Procedure or surgery

    Acoustic rhinometry is a procedure that uses sound waves to measure the cross-sectional area and volume of the nasal cavity.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in nasal patency

    Measured: 5-10 minutes

Secondary outcomes (1)
  1. Nasal volume

    Measured: 5-10 minutes

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Sep 2005 (estimated)
  2. Study startMar 2004
  3. Primary completionDec 2006
  4. Study completionDec 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00147888
Sponsor's protocol ID
13028A
Status last verified
Sep 2013
First submitted
2 Sep 2005
Last updated
5 Sep 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Lundqvist GR, Pedersen OF, Hilberg O, Nielsen B. Nasal reaction to changes in whole body temperature. Acta Otolaryngol. 1993 Nov;113(6):783-8. doi: 10.3109/00016489309135901.

    PubMed 8291439
  • Yamagiwa M, Hilberg O, Pedersen OF, Lundqvist GR. Evaluation of the effect of localized skin cooling on nasal airway volume by acoustic rhinometry. Am Rev Respir Dis. 1990 Apr;141(4 Pt 1):1050-4. doi: 10.1164/ajrccm/141.4_Pt_1.1050.

    PubMed 2327639
  • DRETTNER B. VASCULAR REACTIONS ON THE INTAKE OF FOOD AND DRINK OF VARIOUS TEMPERATURES. Acta Otolaryngol Suppl. 1964;188:SUPPL 188:249+. doi: 10.3109/00016486409134570. No abstract available.

    PubMed 14147452
  • Kase Y, Hilberg O, Pedersen OF. Posture and nasal patency: evaluation by acoustic rhinometry. Acta Otolaryngol. 1994 Jan;114(1):70-4. doi: 10.3109/00016489409126019.

    PubMed 8128857
  • Fouke JM, Jackson AC. Acoustic rhinometry: effects of decongestants and posture on nasal patency. J Lab Clin Med. 1992 Apr;119(4):371-6.

    PubMed 1583387
  • Moinuddin R, Mamikoglu B, Barkatullah S, Corey JP. Detection of the nasal cycle. Am J Rhinol. 2001 Jan-Feb;15(1):35-9. doi: 10.2500/105065801781329473.

    PubMed 11258653
  • Haight JJ, Cole P. Reciprocating nasal airflow resistances. Acta Otolaryngol. 1984 Jan-Feb;97(1-2):93-8. doi: 10.3109/00016488409130968.

    PubMed 6689832
  • Hasegawa M. Nasal cycle and postural variations in nasal resistance. Ann Otol Rhinol Laryngol. 1982 Jan-Feb;91(1 Pt 1):112-4. doi: 10.1177/000348948209100125. No abstract available.

    PubMed 7073167
  • Rundcrantz H. Postural variations of nasal patency. Acta Otolaryngol. 1969 Nov;68(5):435-43. doi: 10.3109/00016486909121582. No abstract available.

    PubMed 5378632
  • Bickford L, Shakib S, Taverner D. The nasal airways response in normal subjects to oxymetazoline spray: randomized double-blind placebo-controlled trial. Br J Clin Pharmacol. 1999 Jul;48(1):53-6. doi: 10.1046/j.1365-2125.1999.00972.x.

    PubMed 10383560
  • Mamikoglu B, Houser S, Akbar I, Ng B, Corey JP. Acoustic rhinometry and computed tomography scans for the diagnosis of nasal septal deviation, with clinical correlation. Otolaryngol Head Neck Surg. 2000 Jul;123(1 Pt 1):61-8. doi: 10.1067/mhn.2000.105255.

    PubMed 10889483
  • Corey JP, Gungor A, Nelson R, Fredberg J, Lai V. A comparison of the nasal cross-sectional areas and volumes obtained with acoustic rhinometry and magnetic resonance imaging. Otolaryngol Head Neck Surg. 1997 Oct;117(4):349-54. doi: 10.1016/S0194-5998(97)70125-6.

    PubMed 9339795
  • Corey JP, Nalbone VP, Ng BA. Anatomic correlates of acoustic rhinometry as measured by rigid nasal endoscopy. Otolaryngol Head Neck Surg. 1999 Nov;121(5):572-6. doi: 10.1016/S0194-5998(99)70058-6.

    PubMed 10547472
  • Hendley JO, Abbott RD, Beasley PP, Gwaltney JM Jr. Effect of inhalation of hot humidified air on experimental rhinovirus infection. JAMA. 1994 Apr 13;271(14):1112-3.

    PubMed 8151855
  • Forstall GJ, Macknin ML, Yen-Lieberman BR, Medendrop SV. Effect of inhaling heated vapor on symptoms of the common cold. JAMA. 1994 Apr 13;271(14):1109-11.

    PubMed 8151854

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Acoustic rhinometry (procedure) in people with Mucosal Congestion, run by University of Chicago 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 1 inclusion and 6 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 5 Sep 2013. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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.

What does the primary outcome measure?

Changes in nasal patency (time frame: 5-10 minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00147888, which also lists 19 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 5 Sep 2013; AzTrials last refreshed its copy on 28 Oct 2026.

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