- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04870125
Safety Study of Inhaled Carbon Monoxide to Treat Pneumonia and Sepsis-Induced Acute Respiratory Distress Syndrome (ARDS)
A Phase Ib Trial of Inhaled Carbon Monoxide for the Treatment of Pneumonia and Sepsis-Induced Acute Respiratory Distress Syndrome (ARDS)
Study Overview
Status
Conditions
Detailed Description
ARDS is a syndrome of severe acute lung inflammation and hypoxemic respiratory failure with an incidence of 180,000 cases annually in the United States. Despite recent advances in critical care management and lung protective ventilation strategies, ARDS morbidity and mortality remain unacceptably high. Furthermore, no specific effective pharmacologic therapies currently exist. Sepsis, life-threatening organ dysfunction caused by a dysregulated host response to infection, represents a major risk for the development of ARDS and multi-organ dysfunction syndrome (MODS). In recent years, the number of patients with severe sepsis has risen to 750,000 per year in the U.S., which bears an alarming forecast for critically ill patients in the intensive care unit with significant risk for the development of ARDS. The lack of specific effective therapies for ARDS indicates a need for new treatments that target novel pathways. Carbon monoxide (CO) represents a novel therapeutic modality in sepsis-induced ARDS based on data obtained in experimental models of sepsis and ARDS over the past decade.
CO has been shown to be protective in experimental models of acute lung injury (ALI) and sepsis. Furthermore, multiple human studies have demonstrated that experimental administration of several different concentrations of CO is well-tolerated and that low dose inhaled CO can be safely administered to subjects in a controlled research environment. The investigators have previously conducted a Phase I trial of low dose iCO in sepsis-induced ARDS which demonstrated that precise administration of low dose iCO (100 and 200 ppm) is feasible, well-tolerated, and safe in patients with sepsis-induced ARDS.
The purpose of this study is to assess the safety and accuracy of a CFK equation-based iCO personalized dosing algorithm of inhaled carbon monoxide (iCO) to achieve a target COHb level of 6-8% in mechanically ventilated patients with sepsis-induced ARDS.
Study Type
Enrollment (Estimated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Rebecca M Baron, MD
- Phone Number: 617-525-6642
- Email: rbaron@bwh.harvard.edu
Study Contact Backup
- Name: Mark A Perrella, MD
- Phone Number: 617-732-6809
- Email: mperrella@rics.bwh.harvard.edu
Study Locations
-
-
Massachusetts
-
Boston, Massachusetts, United States, 02115
- Recruiting
- Brigham and Women's Hospital
-
Contact:
- Rebecca Baron, MD
- Phone Number: 617-525-6642
- Email: rbaron@bwh.harvard.edu
-
Boston, Massachusetts, United States, 02114
- Recruiting
- Massachusetts General Hospital
-
Contact:
- Diana Barragan Bradford, MD
-
-
Missouri
-
Saint Louis, Missouri, United States, 63110
- Recruiting
- Washington University
-
Contact:
- Bryan D Kraft, MD
- Phone Number: 314-747-3000
- Email: kraft@wustl.edu
-
-
New York
-
Brooklyn, New York, United States, 11215
- Recruiting
- New York-Presbyterian Brooklyn Methodist Hospital
-
Contact:
- Jeremy A Weingarten, MD, MBA, MS
- Phone Number: 718-780-5835
- Email: jaw9031@nyp.org
-
Contact:
- Elizabeth M Peters, RN
- Email: elp2018@med.cornell.edu
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New York, New York, United States, 10065
- Recruiting
- Weill Cornell Medical College
-
Contact:
- Maria Plataki, MD, PhD
-
-
North Carolina
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Durham, North Carolina, United States, 27710
- Recruiting
- Duke University Hospital
-
Contact:
- Karen Welty-Wolf, MD
-
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
All patients (age 18 and older) will be eligible for inclusion if they meet all of the following consensus criteria for sepsis and ARDS3,4 or if they meet the criteria for pneumonia as described below.
Patients with sepsis are defined as those with life-threatening organ dysfunction caused by a dysregulated host response to infection:
- Suspected or proven infection: Sites of infection include thorax, urinary tract, abdomen, skin, sinuses, central venous catheters, and central nervous system
- Increase in Sequential Organ Failure Assessment (SOFA) Score ≥ 2 over baseline
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 is present
- Pneumonia (without ARDS or sepsis) will be defined as a unilateral or bilateral lung infiltrate on chest X-ray or chest CT (not fully explained by effusions, lobar/lung collapse or nodules) in the setting of receiving mechanical ventilation, a new suspected respiratory infection, an increase in SOFA score less than 2 at the time of randomization (baseline).
- Pneumonia (with sepsis, without ARDS) will be defined as a unilateral or bilateral lung infiltrate on chest X-ray or chest CT (not fully explained by effusions, lobar/lung collapse or nodules) in the setting of receiving mechanical ventilation and a new suspected respiratory infection with an increase in SOFA score of ≥ 2 over baseline at the time of randomization. Pneumonia with bilateral opacities, PaO2/FiO2 ratio ≤ 300, or an increase in SOFA score greater than or equal to 2 over baseline will continue to be considered ARDS and sepsis.
Exclusion Criteria:
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 line 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
- Severe cardiopulmonary disease classified as New York Heart Association (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
- Severe airway inhalational injury
- Use of high frequency oscillatory ventilation
- Use of extracorporeal membrane oxygenation (ECMO)
- Use of inhaled pulmonary vasodilator therapy (eg. nitric oxide [NO] or prostaglandins)
- Diffuse alveolar hemorrhage from vasculitis
- Concurrent participation in other investigational drug study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Medical air
Inhaled Medical Air for up to 90 minutes daily for 3 days.
|
Inhaled Medical Air for up to 90 minutes daily for 3 days.
|
Experimental: Inhaled Carbon Monoxide
Inhaled Carbon Monoxide at CFK equation-determined personalized dose (200-500 ppm to achieve a COHb level of 6-8%) for up to 90 minutes daily for 3 days.
|
Inhaled Carbon Monoxide at CFK equation-determined personalized dose (200-500 ppm to achieve a COHb level of 6-8%) for up to 90 minutes daily for 3 days.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Primary Safety Outcome: Number of pre-specified administration-related adverse events (AEs).
Time Frame: 7 days
|
Safety of inhaled CO, defined by the incidence of pre-specified administration-related AEs (as defined below) and spontaneously reported AEs through study day 7.
|
7 days
|
Accuracy of the Coburn-Forster-Kane (CFK) equation-based personalized iCO dosing algorithm to achieve a COHb level of 6-8%
Time Frame: day 1, day 2, and day 3
|
This will be assessed by comparing the measured 90-minute COHb level and the target COHb level of 6-8% daily on days 1-3.
|
day 1, day 2, and day 3
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Sequential Organ Failure Assessment (SOFA) score on days 1-5, 7, 14, 28
Time Frame: 28 days
|
Organ failure will be assessed using the SOFA score.
SOFA scores will be assessed daily on days 1-5, and thereafter on days 7, 14, and 28, as the SOFA score has been shown to be a reliable prognostic indicator of outcomes in critically ill patients.
To calculate the Sequential Organ Failure Assessment (SOFA) score, each of the six components (Respiratory, Coagulation, Liver, Cardiovascular, Central Nervous System, Renal) is categorized from 0-4, where a higher number is worse.
The SOFA score (0-24) will be calculated by summing all six components.
|
28 days
|
Ventilator-free days at day 28
Time Frame: 28 days
|
Ventilator-free days to day 28 are defined as the number of days from the time of initiating unassisted breathing to day 28 after randomization, assuming survival for at least two consecutive calendar days after initiating unassisted breathing and continued unassisted breathing to day 28.
If a subject returns to assisted breathing and subsequently achieves unassisted breathing to day 28, VFDs will be counted from the end of the last period of assisted breathing to day 28.
Participants who do not survive to day 28 are assigned zero ventilator-free days.
|
28 days
|
ICU-free days at day 28
Time Frame: 28 days
|
ICU-free days will be assessed on day 28.
ICU-free days is defined as the number of days between randomization and day 28 in which the patient is in the ICU (for any part of a day).
|
28 days
|
Hospital-free days at day 60
Time Frame: 60 days
|
Hospital-free days will be assessed on day 60.
Hospital-free days are days alive post hospital discharge through day 60.
Patients who die on or prior to day 60 are assigned zero hospital-free days.
|
60 days
|
Lung injury score (LIS) on days 1-5 and day 7
Time Frame: 7 days
|
The Lung Injury Score (LIS) is a composite 4-point scoring system including the PaO2/FiO2, PEEP, quasi-static respiratory compliance, and the extent of infiltrates on the chest X-ray.
Each of the four components is categorized from 0 to 4, where a higher number is worse.
The total Lung Injury Score is obtained by dividing the aggregate sum by the number of components used.
Previous randomized clinical trials in ARDS have shown that a decreased LIS correlates with improvement in lung physiology as well as important clinical outcomes including mortality and ventilator-free days (VFDs).
|
7 days
|
PaO2/FiO2 ratio on days 1-5 and day 7
Time Frame: 7 days
|
PaO2/FiO2 will be measured on days 1-5 and day 7 in ventilated subjects.
|
7 days
|
Oxygenation Index (OI) on days 1-5 and day 7
Time Frame: 7 days
|
The oxygenation index will be measured on days 1-5 and day 7 in ventilated subjects.
Oxygenation index is calculated as (FiO2 X mean airway pressure)/PaO2.
|
7 days
|
Dead Space Fraction (Vd/Vt) on days 1-3 and day 7
Time Frame: 7 days
|
The dead space fraction will be measured days 1-3 and day 7 in ventilated subjects.
|
7 days
|
Hospital mortality to day 28 and 60
Time Frame: 60 days
|
Mortality will be assessed on day 28 and day 60.
|
60 days
|
Montreal Cognitive Assessment- MoCA-Blind
Time Frame: 3 months, 6 months
|
The MoCA-Blind will be administered at 3 and 6 months via telephone interview to assess 4 items examining attention, verbal learning and memory, executive functions/language, and orientation.
The test is scored out of 22 with 18 and above considered normal.
|
3 months, 6 months
|
Hayling Sentence Completion Test
Time Frame: 3 months, 6 months
|
The Hayling Sentence Completion Test will be administered at 3 and 6 months via telephone interview.
The Hayling Sentence Completion Test is a neuropsychological test consisting of two types of sentence completion.
The first section is scored based on time taken to complete the sentence.
The second section is scored based on time taken to complete a sentence as well as the quality of answer.
Theses scores are combined and scaled according to age.
|
3 months, 6 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in biomarkers of mitochondrial dysfunction
Time Frame: 5 days
|
Mitochondrial DNA (mtDNA) plasma levels will be measured on days 1-3 and day 5 by quantitative PCR of human NADH dehydrogenase 1.
|
5 days
|
Change in biomarkers of inflammasome activation
Time Frame: 5 days
|
Plasma IL-18 levels will be measured on days 1-3 and day 5 by ELISA.
|
5 days
|
Change in biomarkers of necroptosis
Time Frame: 5 days
|
Plasma RIPK3 levels will be measured on days 1-3 and day 5 by ELISA.
|
5 days
|
Plasma lipid mediators (LM) and specialized pro-resolving mediators (SPMs)
Time Frame: 5 days
|
Lipid mediators (LM) and specialized pro-resolving mediators (SPMs) will be measured in plasma on days 1-3 and day 5 using liquid chromatography-tandem mass spectrometry (LC-MS-MS) based methods.
|
5 days
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Rebecca M Baron, MD, Brigham and Women's Hospital
Publications and helpful links
General Publications
- Rhodes MA, Carraway MS, Piantadosi CA, Reynolds CM, Cherry AD, Wester TE, Natoli MJ, Massey EW, Moon RE, Suliman HB. Carbon monoxide, skeletal muscle oxidative stress, and mitochondrial biogenesis in humans. Am J Physiol Heart Circ Physiol. 2009 Jul;297(1):H392-9. doi: 10.1152/ajpheart.00164.2009. Epub 2009 May 22.
- Fredenburgh LE, Kraft BD, Hess DR, Harris RS, Wolf MA, Suliman HB, Roggli VL, Davies JD, Winkler T, Stenzler A, Baron RM, Thompson BT, Choi AM, Welty-Wolf KE, Piantadosi CA. Effects of inhaled CO administration on acute lung injury in baboons with pneumococcal pneumonia. Am J Physiol Lung Cell Mol Physiol. 2015 Oct 15;309(8):L834-46. doi: 10.1152/ajplung.00240.2015. Epub 2015 Aug 28.
- Hausberg M, Somers VK. Neural circulatory responses to carbon monoxide in healthy humans. Hypertension. 1997 May;29(5):1114-8. doi: 10.1161/01.hyp.29.5.1114.
- Mayr FB, Spiel A, Leitner J, Marsik C, Germann P, Ullrich R, Wagner O, Jilma B. Effects of carbon monoxide inhalation during experimental endotoxemia in humans. Am J Respir Crit Care Med. 2005 Feb 15;171(4):354-60. doi: 10.1164/rccm.200404-446OC. Epub 2004 Nov 19.
- Peterson JE, Stewart RD. Predicting the carboxyhemoglobin levels resulting from carbon monoxide exposures. J Appl Physiol. 1975 Oct;39(4):633-8. doi: 10.1152/jappl.1975.39.4.633.
- Stewart RD, Peterson JE, Baretta ED, Bachand RT, Hosko MJ, Herrmann AA. Experimental human exposure to carbon monoxide. Arch Environ Health. 1970 Aug;21(2):154-64. doi: 10.1080/00039896.1970.10667214. No abstract available.
- Zevin S, Saunders S, Gourlay SG, Jacob P, Benowitz NL. Cardiovascular effects of carbon monoxide and cigarette smoking. J Am Coll Cardiol. 2001 Nov 15;38(6):1633-8. doi: 10.1016/s0735-1097(01)01616-3.
- Ren X, Dorrington KL, Robbins PA. Respiratory control in humans after 8 h of lowered arterial PO2, hemodilution, or carboxyhemoglobinemia. J Appl Physiol (1985). 2001 Apr;90(4):1189-95. doi: 10.1152/jappl.2001.90.4.1189.
- Pecorella SR, Potter JV, Cherry AD, Peacher DF, Welty-Wolf KE, Moon RE, Piantadosi CA, Suliman HB. The HO-1/CO system regulates mitochondrial-capillary density relationships in human skeletal muscle. Am J Physiol Lung Cell Mol Physiol. 2015 Oct 15;309(8):L857-71. doi: 10.1152/ajplung.00104.2015. Epub 2015 Jul 17.
- Fredenburgh LE, Perrella MA, Barragan-Bradford D, Hess DR, Peters E, Welty-Wolf KE, Kraft BD, Harris RS, Maurer R, Nakahira K, Oromendia C, Davies JD, Higuera A, Schiffer KT, Englert JA, Dieffenbach PB, Berlin DA, Lagambina S, Bouthot M, Sullivan AI, Nuccio PF, Kone MT, Malik MJ, Porras MAP, Finkelsztein E, Winkler T, Hurwitz S, Serhan CN, Piantadosi CA, Baron RM, Thompson BT, Choi AM. A phase I trial of low-dose inhaled carbon monoxide in sepsis-induced ARDS. JCI Insight. 2018 Dec 6;3(23):e124039. doi: 10.1172/jci.insight.124039.
- Rosas IO, Goldberg HJ, Collard HR, El-Chemaly S, Flaherty K, Hunninghake GM, Lasky JA, Lederer DJ, Machado R, Martinez FJ, Maurer R, Teller D, Noth I, Peters E, Raghu G, Garcia JGN, Choi AMK. A Phase II Clinical Trial of Low-Dose Inhaled Carbon Monoxide in Idiopathic Pulmonary Fibrosis. Chest. 2018 Jan;153(1):94-104. doi: 10.1016/j.chest.2017.09.052. Epub 2017 Oct 31.
- Bathoorn E, Slebos DJ, Postma DS, Koeter GH, van Oosterhout AJ, van der Toorn M, Boezen HM, Kerstjens HA. Anti-inflammatory effects of inhaled carbon monoxide in patients with COPD: a pilot study. Eur Respir J. 2007 Dec;30(6):1131-7. doi: 10.1183/09031936.00163206. Epub 2007 Aug 22.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Infections
- Respiratory Tract Infections
- Respiratory Tract Diseases
- Respiration Disorders
- Lung Diseases
- Systemic Inflammatory Response Syndrome
- Inflammation
- Disease
- Infant, Newborn, Diseases
- Lung Injury
- Infant, Premature, Diseases
- Sepsis
- Toxemia
- Syndrome
- Pneumonia
- Respiratory Distress Syndrome
- Respiratory Distress Syndrome, Newborn
- Acute Lung Injury
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Antimetabolites
- Gasotransmitters
- Carbon Monoxide
Other Study ID Numbers
- 2021P000745
- 1R61HL153011-01 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- ICF
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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