Overview

Topical and systemic steroids constitute the first choice in medical treatment for nasal polyps. Glucocorticoids sensitivity is significantly correlated with CST1 level in nasal secretions. The goal of this single-arm clinical trial based on a multicenter platform is to test CST1 in patients with chronic rhinosinusitis and nasal polyps before and after oral glucocorticoid therapy. Endoscopic polyp score, Total Nasal Symptom Score(TNSS), SNOT-22 score and other biomarkers are also evaluated before and after the treatment. Researchers will develop a CST1 predictive model of oral glucocorticoid therapy for Chronic Rhinosinusitis with Polyps.

Eligibility

Inclusion Criteria:

1. All meet the diagnostic criteria of CRSwNP in EPOS2020 (Age 18-70 years old);
2. Investigator-assessed endoscopic bilateral Nasal Polyp Size Score (NPSS) was greater than or equal to 4 (minimum score of 2 per nasal cavity);

Exclusion Criteria:

1. Oral glucocorticoid contraindications, such as diabetes, femoral head necrosis, gastric ulcer, etc.
2. Medication history of oral glucocorticoids or immunomodulator within 1 months before enrollment, antibiotics within 2 weeks;
3. fungal sinusitis, allergic fungal sinusitis (AFRS), cystic fibrosis, primary ciliary dyskinesia