ANOSMIA

This study tests whether adding insulin to a platelet-rich plasma (PRP) nose spray helps people recover their sense of smell better than PRP spray alone. It is for adults who lost their smell after an infection and have not gotten it back with standard training. Participants will…

This study is testing two different ways to deliver a patient's own platelet-rich plasma (PRP) to help restore smell in adults who have had smell loss for over three months. Researchers will compare a less invasive method using a PRP-soaked sponge placed in the nose to a more dir…

This study is testing if a long-term, home-based walking program can help prevent or delay Parkinson's disease in people at higher risk. It will recruit 110 adults over 40 who have a reduced sense of smell—an early warning sign—and are not very active. Participants will use a fit…

This study is testing whether injections of platelet-rich plasma (made from a person's own blood) can improve smell function in adults who have persistent smell loss not caused by tumors. Participants will receive three injections over four weeks and have their smell function mea…

This study aims to understand how the brain changes in people who have lost or have a distorted sense of smell, often after illnesses like COVID-19 or the flu. Researchers will follow 80 adults with smell disorders and healthy volunteers for one year, using brain scans, smell tes…