Chronic rhinosinusitis

This early-stage study tests a new drug called cizutamig in about 20 adults with IgE-mediated allergies, including food allergies. The main goal is to see if the drug can safely lower IgE levels, which are antibodies that trigger allergic reactions. Researchers will also monitor …

This study compares a new biodegradable nasal dressing that slowly releases a steroid (mometasone furoate) to a standard steroid-releasing stent, both used after sinus surgery. About 110 adults with chronic sinusitis (with or without nasal polyps) will receive the new dressing in…

This study tests a new treatment for chronic sinusitis, a long-lasting sinus infection that doesn't get better with standard care. Researchers will take healthy bacteria from a donor's sinuses and transfer them into the sinuses of 80 patients, after a special sinus wash. The goal…

This early study tests a new approach for people with chronic sinusitis that keeps coming back. A balloon coated with the drug paclitaxel is inflated in the nasal passages to deliver medication directly to the tissue. The goal is to see if it is safe and can reduce symptoms and t…

This study tests whether rinsing the nose with a xylitol solution can reduce sinus symptoms in adults with cystic fibrosis. Participants will use both xylitol and standard saline rinses at different times to compare effects. The goal is to see if xylitol, a natural sugar alcohol,…

This study tracks 80 adults with different smell disorders (like total loss, partial loss, or distorted smell) plus healthy volunteers over one year. Researchers use brain scans, smell tests, and questionnaires to see how the brain changes and how smell loss impacts mood and dail…

This study aimed to find out how often chronic sinusitis occurs in children treated for head and neck cancer, and how it affects their quality of life. Researchers planned to compare these children to those treated for cancer elsewhere in the body using a questionnaire called SNO…

This study aims to develop a new way to measure how well the sinuses work in people with chronic sinusitis. About 30 adults with chronic sinusitis and a recent bacterial infection will take the drug ivacaftor. The main goal is to see if a special test can detect changes in sinus …

This study tracks 40 people with nasal polyps and severe asthma who are taking mepolizumab, a drug that reduces inflammation. Researchers collect nose, blood, and sputum samples before treatment and at 3, 6, and 12 months to see how the drug affects symptoms, nose bacteria, and g…

This study investigates why some people develop chronic sinusitis with nasal polyps, focusing on how epigenetic changes and viruses might trigger the disease. Researchers will analyze tissue samples from 60 participants, including patients with active disease, those in remission,…

This study was designed to see how chronic sinusitis affects the tiny hair-like cells (cilia) that help clear mucus from the nose. Researchers planned to use special glowing nano-sticks to measure how well these cells work. However, the study was withdrawn before any participants…

This study looks at the bacteria living in the nose and sinuses of people with chronic sinusitis, allergies, and healthy individuals. By analyzing tissue samples from 285 participants, researchers hope to identify which bacteria are linked to long-term inflammation. The goal is t…

This study looks at the genes of 1,200 adults to find out why some people get chronic sinusitis. Participants must have a CT scan showing either normal sinuses or sinus disease. The goal is to identify genetic variations linked to the condition, which could lead to better underst…

This study is testing a new web-based tool designed to help people with chronic sinusitis make better decisions about their treatment, including whether to have surgery. About 50 patients from USC clinics will use the tool or receive standard information. Researchers will measure…