Mouth spray could curb cold virus spread, early trial hints
NCT ID NCT07041671
First seen Apr 24, 2026 · Last updated Jun 23, 2026 · Updated 5 times
Summary
This study tests whether ColdZyme mouth spray can lower the amount of virus people with cold or flu symptoms breathe out. Researchers will measure virus particles in exhaled air before and after using the spray. The goal is to see if the spray might help reduce airborne transmission of respiratory viruses.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Lund University
RECRUITINGLund, 22100, Sweden
Contact Phone: •••-•••-•••• Email: •••••@•••••
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What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
ColdZyme mouth spray (a medical device that forms a protective barrier in the mouth and throat)
What this could lead to
If it works, this could show that a simple mouth spray helps reduce the spread of cold and flu viruses from infected people to others.
What could go wrong
This is an early-stage study with only one dose, and it measures virus levels in breath, not actual infection rates. The spray may not meaningfully reduce transmission in real-world settings.
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.