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Biopsies and Polyps

NCT00835445 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 25

Last updated 2011-01-07

No results posted yet for this study

Summary

Background: Nasal polyps are found in about 5% of asthmatic patients.A close link exists between the upper and lower airways and the concept of the "United Airways" has emerged mainly from studies on allergic rhinitis and asthma. However, other upper airway diseases, such as chronic sinusitis and nasal polyposis may influence lower airway diseases. As for nasal polyposis, eosinophils are the major effector cells in asthma and have been associated with a worsening of this condition.

Aim: To compare normal nasal mucosa and nasal polyp biopsies from subjects with nasal polyposis with or without asthma.

Hypothesis: Nasal polyps from asthmatic subjects show a more aggressive pro-inflammatory pattern of cytokine expression compared to nasal polyps from non asthmatic subjects, and therefore contribute to the development and severity of asthma.

Conditions

Sponsors & Collaborators

  • Laval University

    lead OTHER

Principal Investigators

  • Louis-Philippe Boulet, MD · Centre de recherche, Hôpital Laval

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-07-31
Primary Completion
2008-10-31
Completion
2009-09-30

Countries

  • Canada

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00835445 on ClinicalTrials.gov