Mouth spray could curb virus spread in the air

NCT ID NCT07041671

Recruiting now Disease control Sponsor: Lund University Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether ColdZyme mouth spray can lower the amount of virus people breathe out when they have a cold or flu. 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.

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.
What could go wrong: This is an early study with only one dose, and it measures virus levels in breath, not actual infection rates. The spray may not significantly reduce transmission in real-world settings.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

respiratory tract infectious disorder viral respiratory tract infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

URTI - VIRAL UPPER RESPIRATORY TRACT INFECTION

Contacts and locations

Locations

Lund University
RECRUITING

Lund, 22100, Sweden

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