PRP for smell loss: injection vs. nose drops
Treatments studied
Part of Brain & nervous system clinical trials.
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.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 80 years old
- You have had a poor sense of smell for at least 3 months, confirmed by a smell test
- You have tried smell training for at least 3 months but still have smell problems
- You do not have a serious brain condition or injury that would prevent smell recovery
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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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.
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This study uses brain imaging and electrical recordings to understand the brain's role in smell loss from any cause—like COVID, sinus problems, or chemotherapy. You may be eligible if you have any degree of smell loss lasting under a year.
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