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NO Prevention of COVID-19 for Healthcare Providers

NCT04312243 · Status: TERMINATED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2026-03-20

Study results available
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Summary

Thousands of healthcare workers have been infected with SARS-CoV-2 and contracted COVID-19 despite their best efforts to prevent contamination. No proven vaccine is available to protect healthcare workers against SARS-CoV-2.

This study will enroll 470 healthcare professionals dedicated to care for patients with proven SARS-CoV-2 infection. Subjects will be randomized either in the observational (control) group or in the inhaled nitric oxide group. All personnel will observe measures on strict precaution in accordance with WHO and the CDC regulations.

Conditions

  • Coronavirus Infections
  • Healthcare Associated Infection

Interventions

DRUG

Inhaled nitric oxide gas

Control group: a SARS-CoV2 rt-PCR will be performed if symptoms arise. Treatment group: the subjects will breathe NO at the beginning of the shift and before leaving the hospital. Inspired NO will be delivered at 160 parts per million (ppm) for 15 minutes in each cycle. A SARS-CoV-2 rt-PCR will be performed if symptoms arise. Safety: Oxygenation and methemoglobin levels will be monitored via a non-invasive CO-oximeter. If methemoglobin levels rise above 5% at any point of the gas delivery, inhaled NO will be halvened. NO2 gas will be monitored and maintained below 5 ppm.

Sponsors & Collaborators

  • Massachusetts General Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
99 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-04-07
Primary Completion
2022-01-10
Completion
2022-01-10
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04312243 on ClinicalTrials.gov