NCT06682676

Diagnostic Efficacy of CDA Nasal Provocation Test in Patients With IR

To Study the Diagnostic Efficacy of Cold Dry Air (CDA) Nasal Provocation Test in Patients With Idiopathic Rhinitis (IR)

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 100 (estimated)
• Sponsor: The First Affiliated Hospital with Nanjing Medical University · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

Chronic rhinitis is a common chronic nasal mucosal inflammatory disease. Its clinical symptoms and severity are diverse, mainly including allergic rhinitis, local allergic rhinitis, non-allergic rhinitis with hypereosinophilia syndrome and idiopathic rhinitis. All kinds of rhinitis have clinical symptoms such as nasal congestion, runny nose, sneezing, and nasal itching, but the causes are different. At present, the diagnosis of idiopathic rhinitis (IR) is based on detailed medical history and negative allergen test results, which is a diagnosis of exclusion. According to the position paper of the European Academy of Allergy and Clinical Immunology (EAACI), nasal hyperresponsiveness is an abnormal reaction of the nasal mucosa to stimuli that most people can tolerate. One of the distinguishing features of non-allergic rhinitis. cold dry air (CDA) nasal provocation test has been proved to be a good, safe and tolerable test for nasal hyperresponsiveness, with superior sensitivity and specificity. At present, there is still a lack of clear diagnostic criteria for IR. Therefore, optimizing CDA nasal provocation test, determining the diagnostic efficacy of CDA nasal provocation test with different parameters for IR, and initially constructing an IR diagnostic model can provide more comprehensive guidance for clinical diagnosis and treatment, which has important clinical significance.

Detailed description

The visual analogue scale (VAS) of nasal symptoms, rhinoconjunctivitis quality of life questionnaire (RQLQ), total nasal symptom score (TNSS), total nasal volume (TNV), minimum cross-sectional area (MCA), peak inspiratory flow (PNIF), and total nasal resistance (TNR) at 75Pa were recorded before and after nasal ventilation function test and CDA nasal provocation test.

Conditions

• Chronic Rhinitis

Interventions

Type	Name	Description
DEVICE	Nasal ventilation function test and cold and dry air nasal provocation test	The visual analogue scale (VAS) of nasal symptoms, rhinoconjunctivitis quality of life questionnaire (RQLQ), total nasal symptom score (TNSS), total nasal volume (TNV), minimum cross-sectional area (MCA), peak inspiratory flow (PNIF), and total nasal resistance (TNR) at 75Pa were recorded before and after nasal ventilation function test and CDA nasal provocation test.

Timeline

• Start date: 2024-11-07
• Primary completion: 2027-12-31
• Completion: 2032-12-31
• First posted: 2024-11-12
• Last updated: 2024-11-12