ReAl-woRld Evaluation of tEzepelumab for Chronic rhinoSinusitis With Nasal Polyps in Russia

This real-world observational study is tracking how well tezepelumab — a biologic injection that blocks an inflammatory protein called TSLP — works in Russian patients with chronic sinusitis with nasal polyps (CRSwNP), a condition causing persistent blocked nose, reduced sense of smell, and often requiring repeated surgery. The study will compare patients' health before and after starting the drug. **You may be eligible if...** - You are 18 or older - You have been diagnosed with chronic sinusitis with nasal polyps for at least 52 weeks - Your doctor has already prescribed tezepelumab for your condition - Your medical records cover at least the past year **You may NOT be eligible if...** - You have not been prescribed tezepelumab, or it was prescribed but not yet started - You are enrolled in another interventional clinical trial at the same time - Your past medical records are insufficient for the study's requirements Talk to your doctor to see if this trial is right for you.