Nitric oxide trial to shield hospital staff from COVID-19 fizzles out

NCT ID NCT04312243

First seen Jan 08, 2026 · Last updated Apr 29, 2026 · Updated 14 times

Summary

This study aimed to see if breathing in nitric oxide gas could protect healthcare workers from catching COVID-19. It planned to enroll 470 participants but was stopped early with only 24 people. The trial compared workers who inhaled the gas to those who did not, while everyone followed standard safety rules.

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Contacts and locations

Locations

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

Conditions

Explore the condition pages connected to this study.