Study of Genic Expression Profiles of the Epithelium of the Nose and Bronchi in Healthy and Allergic Subjects (GENEBRO)

Centre Hospitalier Universitaire de Nice

Status: Unknown

Conditions: Allergy

Treatments: Procedure: bronchofiberscopy

Study type: Interventional

Funder types: Other

Identifiers

NCT01923519

13-PP-06

Details and patient eligibility

About

The respiratory epithelium plays a leading role in the development of allergic respiratory disease with barrier function alteration, its repair mechanisms, of anti-viral fight and the ability to induce by itself Th2 responses. The majority of allergic asthmatic patients have reached concomitant ENT: the concept of "one airway, one disease." Access to this material of epithelial study in the different phenotypes of the disease appears to be crucial. Nasal and bronchial epithelial tissues reveal essential differences in particular related to their environment (remodeling less intense and a lower sensitivity to the virus in the nose), but they nevertheless share many common cellular characteristics.

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 30 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• age ≥ 18 years and <30 years
• isolated allergic rhinitis according to clinical criteria ARIA
• absence of asthma whose diagnosis is made based on clinical criteria or mild to moderate persistent asthma controlled with a diagnosis is made based on clinical criteria

Exclusion criteria

• recent rhino-bronchial infection (<6 weeks)
• asthma exacerbation in the previous 6 weeks
• Chronic disease may in the opinion of the investigators interfere with the results of the study or expose them to additional risk.
• Treatment with nasal corticosteroids, inhaled or systemic in the past 6 weeks
• Current smoking no history of smoking or not smoking for at least 12 months and weaned smoking history <5 pack-years)
• Special Needs

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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30 participants in 3 patient groups

allergic rhinitis

Experimental group

Treatment:

Procedure: bronchofiberscopy

allergic rhinitis and asthma

Experimental group

Treatment:

Procedure: bronchofiberscopy

witnesses

Experimental group

Treatment:

Procedure: bronchofiberscopy