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Allergic RhinitisNCT01461200

Effects of Allergic Rhinitis on the Nasal/Sinus Microbiome

An observational study of Allergic Rhinitis, 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

The purpose of this study is to find out if the bacteria present in the nose or sinuses of people with seasonal allergies changes during their allergy season. Another purpose of this study is to see if the bacteria present in the nose and sinuses of non-allergic people are the same as allergic people before the… Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Allergic Rhinitis
What is being tested?
Swab of vestibule and middle meatus of nose
How many people
40 participants
Where
1 siteUnited States
Study dates
Mar 2011to Feb 2012
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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: Patients with seasonal allergies and healthy controls from the community.

Who may be able to join

  • Males and females between 18 and 55 years of age.
  • History of tree and/or grass allergic rhinitis for at least 2 years (allergic subjects) or no allergy history at all (normal controls).
  • For allergic subjects, a positive skin test to trees and/or grass antigen within prior 12 months. For non-allergic subjects, negative skin tests to common allergens in the Chicago area.

Who cannot join

  • Respiratory disease other than allergic rhinitis, allergic conjunctivitis and mild asthma.
  • Use of nasal steroids, antihistamines in the last 4 weeks.
  • Upper respiratory infection, sinusitis less than 2 weeks before screening.
  • Structural nasal abnormalities or nasal polyps on examination, nasal ulcer, frequent nose bleeding, recent nasal surgery or nasal trauma (within 90 days).
  • Participation in other investigational therapy in the last 30 days.
  • Any systemic disorder or medication interfering with the study.
Show all 10Show fewer
  • Undergoing allergen desensitization therapy.
  • Not willing to give informed consent
  • Inability to understand the nature and requirements of the study, or to comply with the study procedures.
  • Any social or medical condition that, in the opinion of the investigator, would preclude provision of informed consent, make participation in the study unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Chicago

    Chicago, Illinois, 60637

Other trials in United States

About this study

Official title: A Parallel Group Observational Study of the Effects of Allergic Rhinitis on the Nasal/Sinus Microbiome

The purpose of this study is to find out if the bacteria present in the nose or sinuses of people with seasonal allergies changes during their allergy season. Another purpose of this study is to see if the bacteria present in the nose and sinuses of non-allergic people are the same as allergic people before the allergy season and if it changes during the season. Many bacteria are difficult to grow in the laboratory so the investigators are using analysis of DNA (the genetic material in cells) of the bacteria in the nose and sinus to find them. The investigators will be testing DNA of the bacteria only and not of the human subjects taking part in this study. This research is being done to help us understand how allergy affects bacteria in the nose and sinuses.

Being tested
Swab of vestibule and middle meatus of nose
Medical subject headings
Rhinitis, Allergic

What participants receive

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

  • Swab of vestibule and middle meatus of noseOther

    Swabs of vestibule and middle meatus of nose will be taken prior to and during the grass/tree allergy season

Study groups in NCT01461200
Study groupRoleWhat they receive
Non allergicsNot described
Receives: Other: Swab of vestibule and middle meatus of nose
allergicsNot described
Receives: Other: Swab of vestibule and middle meatus of nose

What is being measured

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

  1. Change in bacterial profile of the sinuses

    DNA isolation to determine the bacterial profiles of samples taken at baseline (out of subjects' allergy season) and 1 to 3 months later during subjects' allergy season.

    Measured: Measured at baseline and 1 to 3 months later.

Timeline

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

  1. First posted28 Oct 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionJan 2012
  4. Study completionFeb 2012

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01461200
Sponsor's protocol ID
10-712-A
Status last verified
Mar 2014
First submitted
24 Oct 2011
Last updated
27 Mar 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Allergic Rhinitis, 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 3 inclusion and 10 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 27 Mar 2014. 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.

What does the primary outcome measure?

Change in bacterial profile of the sinuses (time frame: Measured at baseline and 1 to 3 months later.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 27 Mar 2014; AzTrials last refreshed its copy on 7 Nov 2026.

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