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Rhinitis, Allergic, NonseasonalNCT00041821

Nasal Irritation Study: Individual Factors in Nasal Irritant Sensitivity

A study testing Nasal irritation thresholds and irritant provocation in people with Rhinitis, Allergic, Nonseasonal, run by National Institute of Environmental Health Sciences (NIEHS) 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

This study seeks to document differences in nasal irritant sensitivity within the population. The investigators are interested in knowing whether age, gender, and allergy status (nasal allergies) predict nasal irritant sensitivity. Read more about this study

Who is it for?
Ages 18 to 69 yearsHealthy volunteers can take part
Conditions the study is for
Rhinitis, Allergic, Nonseasonal
What is being tested?
Nasal irritation thresholds and irritant provocation
Type of treatment
Surgery or procedure
How many people
64 participants
Where
1 siteUnited States
Study dates
Sep 2000to not given
Phase
Interventional
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 69 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Non-smokers
  • 18-69 years of age
  • With or without allergic rhinitis (hay fever)
  • In good general health and with no prior history of asthma

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Upper Airway Biology Laboratory

    Richmond, California, 94804

Other trials in United States

About this study

Official title: Individual Factors in Nasal Irritant Sensitivity

This study seeks to document differences in nasal irritant sensitivity within the population. The investigators are interested in knowing whether age, gender, and allergy status (nasal allergies) predict nasal irritant sensitivity. This is important in understanding symptom reporting patterns in air pollution situations (particularly in so-called "problem buildings"), as well as in understanding the reflex mechanism of a response of the nose to irritants (e.g., nasal congestion).

Being tested
Nasal irritation thresholds and irritant provocation
Keywords
rhinitis, irritation, trigeminal
Medical subject headings
Rhinitis, Allergic, Perennial, Rhinitis

What participants receive

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

  • Nasal irritation thresholds and irritant provocationProcedure or surgery

Timeline

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

  1. First posted22 Jul 2002 (estimated)
  2. Study startSep 2000

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 N/A
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Enrolment
64 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00041821
Sponsor's protocol ID
10424-CP-001
Status last verified
Mar 2006
First submitted
18 Jul 2002
Last updated
23 Mar 2006
Results posted
No

Publications

  • Shusterman DJ, Murphy MA, Balmes JR. Subjects with seasonal allergic rhinitis and nonrhinitic subjects react differentially to nasal provocation with chlorine gas. J Allergy Clin Immunol. 1998 Jun;101(6 Pt 1):732-40. doi: 10.1016/S0091-6749(98)70302-1.

    PubMed 9648699
  • Shusterman D, Murphy MA, Balmes J. The influence of sex, allergic rhinitis, and test system on nasal sensitivity to airborne irritants: a pilot study. Environ Health Perspect. 2001 Jan;109(1):15-9. doi: 10.1289/ehp.0110915.

    PubMed 11171519

Questions about this trial

What is this clinical trial studying?

A study testing Nasal irritation thresholds and irritant provocation in people with Rhinitis, Allergic, Nonseasonal, run by National Institute of Environmental Health Sciences (NIEHS) 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 4 inclusion and 0 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 23 Mar 2006. 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 NCT00041821, which also lists 2 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 23 Mar 2006.

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