Platelet-rich plasma for smell loss not caused by tumors
Part of Brain & nervous system clinical trials.
This trial tests if platelet-rich plasma injections can help people with long-term smell loss from aging or head injury. It aims to see if this treatment is safe and improves smell function.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must be an adult with smell loss lasting more than 6 months due to aging or head injury.
- A smell test (Sniffin' Sticks) must show you have moderate to severe smell loss.
- You need an MRI from the last 6 months that rules out tumors or other brain causes.
- A nasal exam must be normal (no sinus issues like polyps).
- You cannot have a bleeding disorder or be on blood thinners.
- You cannot have smell loss from COVID-19 if it started less than 1 month after infection.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study compares two ways to give platelet-rich plasma (PRP) to help people who have lost their sense of smell. PRP is a treatment made from your own blood that may help repair smell nerves.
This study tests a new way of doing smell training to help people whose sense of smell has not recovered after a viral illness. It may help you smell things better again.
This study tests whether a special smell training program can help people with chronic sinusitis improve their sense of smell after sinus surgery. If you have ongoing smell loss three months after surgery, you may be able to join.
This study tests if injections of platelet-rich plasma (a treatment made from your own blood) can help people who have lost their sense of smell. You may qualify if your smell loss is not caused by injury or blockages in your nose.
This study tests whether a treatment made from your own blood (platelet-rich plasma) sprayed into the nose, with or without insulin, can help restore your sense of smell after an infection. You may be a good fit if smell training hasn't worked and your smell loss is recent.
This trial tests whether injecting a concentrated part of your own blood (platelet-rich plasma) into your nose can help improve a distorted sense of smell called parosmia. You will also do smell training at home, which is the current standard care.
Hear when a new Olfactory Dysfunction trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.