Status:

ACTIVE_NOT_RECRUITING

Safety and Efficacy Study of Inhaled Carbon Monoxide to Treat Acute Respiratory Distress Syndrome (ARDS)

Lead Sponsor:

Brigham and Women's Hospital

Collaborating Sponsors:

Massachusetts General Hospital

Weill Medical College of Cornell University

Conditions:

Acute Respiratory Distress Syndrome

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

This study will be a multi-center, prospective, randomized, partially double-blind, placebo-controlled Phase II clinical trial of inhaled CO (iCO) for the treatment of ARDS. The trial will be conducte...

Detailed Description

Acute respiratory distress syndrome (ARDS) is a devastating disease affecting military, veteran, and civilian populations. ARDS is a syndrome of severe acute lung inflammation and hypoxemic respirator...

Eligibility Criteria

Inclusion

  • All intubated patients ≥ 18 years old with ARDS
  • ARDS is defined when all four of the following criteria are met:
  • A PaO2/FiO2 ratio ≤ 300 with at least 5 cm H2O positive end-expiratory airway pressure (PEEP)
  • Bilateral opacities on frontal chest radiograph (not fully explained by effusions, lobar/lung collapse, or nodules) within 1 week of a known clinical insult or new or worsening respiratory symptoms
  • A need for positive pressure ventilation by an endotracheal or tracheal tube
  • Respiratory failure not fully explained by cardiac failure or fluid overload; need objective assessment (e.g., echocardiography) to exclude hydrostatic edema if no risk factor present.
  • ARDS onset is defined as the time the last of criteria 1-4 are met. ARDS must persist through the enrollment time window of 168 hours.

Exclusion

  • An individual who meets any of the following criteria will be excluded from participation in this study:
  • Age less than 18 years
  • Greater than 168 hours since ARDS onset
  • Pregnant or breastfeeding
  • Prisoner
  • Patient, surrogate, or physician not committed to full support (exception: a patient will not be excluded if he/she would receive all supportive care except for attempts at resuscitation from cardiac arrest)
  • No consent/inability to obtain consent or appropriate legal representative not available
  • Physician refusal to allow enrollment in the trial
  • Moribund patient not expected to survive 24 hours
  • No arterial or central line/no intent to place an arterial or central line
  • No intent/unwillingness to follow lung protective ventilation strategy
  • Severe hypoxemia defined as SpO2 \< 95 or PaO2 \< 90 on FiO2 ≥ 0.9
  • Hemoglobin \< 7.0 g/dL
  • Subjects who are Jehovah's Witnesses or are otherwise unable or unwilling to receive blood transfusions during hospitalization
  • Acute myocardial infarction (MI) or acute coronary syndrome (ACS) within the last 90 days
  • Coronary artery bypass graft (CABG) surgery within 30 days
  • Angina pectoris or use of nitrates with activities of daily living
  • Cardiopulmonary disease classified as NYHA class IV
  • Stroke (ischemic or hemorrhagic) within the prior 1 month, cardiac arrest requiring CPR within the prior 72 hours, or inability to assess mental status following cardiac arrest
  • Burns \> 40% total body surface area (TBSA)
  • Severe airway inhalational injury
  • Use of high frequency oscillatory ventilation
  • Use of extracorporeal membrane oxygenation (ECMO)
  • Concomitant use of inhaled pulmonary vasodilator therapy (eg. nitric oxide \[NO\] or prostaglandins)
  • Diffuse alveolar hemorrhage from vasculitis
  • Concurrent participation in other investigational drug study

Key Trial Info

Start Date :

July 1 2019

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

January 1 2026

Estimated Enrollment :

32 Patients enrolled

Trial Details

Trial ID

NCT03799874

Start Date

July 1 2019

End Date

January 1 2026

Last Update

August 24 2025

Active Locations (7)

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Page 1 of 2 (7 locations)

1

Massachusetts General Hospital

Boston, Massachusetts, United States, 02114

2

Brigham and Women's Hospital

Boston, Massachusetts, United States, 02115

3

Washington University

St Louis, Missouri, United States, 63130

4

New York-Presbyterian Brooklyn Methodist Hospital

Brooklyn, New York, United States, 11215