Cheap nasal spray could slash COVID transmission in households

NCT ID NCT05204550

First seen May 19, 2026 · Last updated May 23, 2026 · Updated 3 times

Summary

This study tested whether a nasal spray containing heparin, a common and safe medicine, can reduce the spread of COVID-19 among people living in the same home. Over 500 adults and children who lived with someone who tested positive for COVID-19 used the spray or a dummy spray three times daily for 10 days. The goal was to see if fewer household contacts caught the virus compared to those using the placebo.

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Contacts and locations

Locations

  • The Northern Hospital

    Epping, Victoria, 3076, Australia

Conditions

Explore the condition pages connected to this study.