OLFACTORY DYSFUNCTION

This small pilot study is testing whether injections of a person's own platelet-rich plasma (PRP) can improve smell in adults who have had a reduced or lost sense of smell for more than six months due to aging or injury. Thirty participants will receive three PRP injections over …

This study tests two ways to give platelet-rich plasma (PRP) to adults who have had poor smell for over three months. One method uses a soaked sponge placed in the nose, the other uses a small injection. Sixty participants will get one treatment and then do daily smell training f…

This study aims to see the part of the nose responsible for smell using a special microscope originally designed for brain imaging. Researchers will compare images from people with and without smell loss to find differences in the tiny structures. About 36 adults undergoing nose …

This study looks at whether helping people identify and cope with smell loss can improve their overall health and well-being. Researchers will give 1000 adults with smell problems access to testing and coping resources. The goal is to see if this support reduces depression and im…

This study tests whether a smartphone-based exercise program is practical for adults aged 40 and older with a reduced sense of smell (hyposmia). Participants are randomly assigned to either a full-dose program aiming to double their daily steps or a low-dose control aiming for a …