Could scented nose plugs be the key to restoring lost smell?
NCT ID NCT06142565
First seen Jun 26, 2026 ยท Last updated Jun 26, 2026
Summary
This study tested whether scented nose plugs could make smell training more effective for people who lost their sense of smell after a virus like COVID-19. 120 adults with reduced smell were split into two groups: one did regular smell training at home, and the other used scented nose plugs. The goal was to see if the nose plugs improved smell function, symptoms, and quality of life.
What this could mean
Our plain-language read of the trial. This is informational only โ not medical advice or a prediction.
- Active substance
- scented nose plugs
- What this could lead to
- If it works, this could offer a more convenient and effective way to regain smell after a viral infection.
- What could go wrong
- This is a small, completed study, so results may not apply to everyone. The improvement might be small or not better than standard smell training.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for HYPOSMIA are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Karolinska Institutet
Solna, Stockholm County, 17177, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Sniffing your way back: does scent therapy rebuild COVID-Shattered smell?
- Smartwatch AI could spot Parkinson's years before symptoms
- Sniffing out solutions: new device aims to restore lost smell in seniors
- Can a blood injection restore lost smell? new study aims to find out
- Neck injection may restore smell in long COVID patients
- New drug aims to restore lost smell in clinical trial