Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jun 25, 2026, 9:25 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 51 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Carbon Monoxide Clear all
Terminated Phase 1Phase 2 Interventional Results available

CO as a Stimulant for Mitochondrial Biogenesis in Human Cardiac Muscle

NCT01727167
View directory record Official record
Conditions
Cardiac Disease, Mitochondrial Biogenesis, Carbon Monoxide
Interventions
200ppm CO for one hour, Control
Drug · Other
Lead sponsor
John J Freiberger
Other
Eligibility
20 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2016 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Utilizing Exhaled Breathe Condensate Collection to Study Ion Regulation in Cystic Fibrosis

NCT01880723
View directory record Official record
Conditions
Cystic Fibrosis, Healthy
Interventions
Albuterol, Placebo saline
Drug
Lead sponsor
University of Arizona
Other
Eligibility
15 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Jun 25, 2026, 9:25 PM EDT
Terminated No phase listed Observational

Outcome Following Carbon Monoxide Poisoning in Children

NCT01059708
View directory record Official record
Conditions
Carbon Monoxide Poisoning
Interventions
Not listed
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
6 Years to 16 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 16, 2011 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carbon Monoxide Monitor for the Measurement of End-Tidal Carbon Monoxide Levels in Children With or Without Hemolysis

NCT01848691
View directory record Official record
Conditions
Sickle Cell Anemia
Interventions
Measurement of carbon monoxide level in exhaled breath
Other
Lead sponsor
Ashutosh Lal
Other
Eligibility
5 Years to 14 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jun 1, 2014 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

CO Monitoring for Tobacco Cessation in Quitlines

NCT05327660
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Quitline Treatment as Usual (TAU), Remote Carbon Monoxide (CO) Monitoring, Incentivized Remote CO Monitoring
Combination Product
Lead sponsor
Consumer Wellness Solutions
Industry
Eligibility
18 Years and older
Enrollment
229 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 27, 2024 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Emergency Department Brief Intervention to Increase Carbon Monoxide Detector Use

NCT00959478
View directory record Official record
Conditions
Intervention-carbon Monoxide Alarm + Educational Tool, Control- Usual Care Flyer on Carbon Monoxide
Interventions
Educational Tool & Carbon Monoxide Alarm
Behavioral
Lead sponsor
Lara McKenzie
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Phase 1Phase 2 Interventional

Carbon Monoxide-Saturated Medium for Islet Isolation

NCT02567240
View directory record Official record
Conditions
Chronic Pancreatitis
Interventions
Carbon monoxide-bubbled mediums
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 69 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Not applicable Interventional Results available

Postoperative Heme Oxygenase Induction and Carbon Monoxide Production as a Novel Method to Assess Hepatic Regeneration and Predict Hepatic Related Morbidity After Partial Hepatectomy

NCT04195438
View directory record Official record
Conditions
Liver Cancer
Interventions
CO Testing Pre/Post Hepatic Resection, ABG Testing Pre/Post Hepatic Resection, CT Evaluations
Procedure · Diagnostic Test
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
1
States / cities
Glen Burnie, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 20, 2024 · Synced Jun 25, 2026, 9:25 PM EDT
Completed No phase listed Observational

Prospective Evaluation of Biomarker Profiles in Idiopathic Pulmonary Fibrosis

NCT02151435
View directory record Official record
Conditions
IPF
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
35 Years to 80 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 25, 2017 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Phase 1 Interventional

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

NCT02425579
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS)
Interventions
Inhaled Carbon Monoxide at 100ppm (4 participants), Placebo for Inhaled Carbon Monoxide at 100ppm (2 participants), Inhaled Carbon Monoxide at 200ppm (4 participants), Placebo for Inhaled Carbon Monoxide at 200ppm (2 participants)
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
4
States / cities
Boston, Massachusetts • New York, New York • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 16, 2019 · Synced Jun 25, 2026, 9:25 PM EDT
Terminated No phase listed Observational

Suspected Cases of Carbon Monoxide Poisoning in the ED

NCT03004235
View directory record Official record
Conditions
Carbon Monoxide Poisoning
Interventions
Observational data collection
Device
Lead sponsor
Nonin Medical, Inc
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Jun 25, 2026, 9:25 PM EDT
Withdrawn No phase listed Observational

Exhaled Carbon Monoxide as a Marker of Hemolysis in Sickle Cell Disease- an Exploratory Study

NCT01888614
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Not listed
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 22, 2016 · Synced Jun 25, 2026, 9:25 PM EDT
Completed No phase listed Observational

Analysis of Emergency Department (ED) Volumes During Natural Disasters

NCT01059981
View directory record Official record
Conditions
Dialysis, Trauma Related Injuries, Carbon Monoxide Poisoning
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 7, 2010 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Assess the Safety and Pharmacokinetics of HBI-002, an Oral Carbon Monoxide Therapeutic, in Healthy Volunteers

NCT03926819
View directory record Official record
Conditions
Anemia, Sickle Cell
Interventions
HBI-002
Drug
Lead sponsor
Hillhurst Biopharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Not applicable Interventional Results available

COach2Quit TRIAL: Assessing a Prototype Personal Carbon Monoxide Monitor for Smoking Cessation

NCT03142932
View directory record Official record
Conditions
Smoking, Smoking Cessation
Interventions
Individualized carbon monoxide (iCO) monitor, COach2Quit smartphone application, Cessation counseling
Device · Other · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Phase 2 Interventional Results available

Study of Inhaled Carbon Monoxide to Treat Idiopathic Pulmonary Fibrosis

NCT01214187
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
inhaled carbon monoxide, Oxygen
Drug · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
8
States / cities
San Francisco, California • Chicago, Illinois • New Orleans, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Jun 25, 2026, 9:25 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prediction of Jaundice in Term Infants

NCT01203410
View directory record Official record
Conditions
Infant, Newborn, Jaundice
Interventions
Not listed
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 8 Hours
Enrollment
535 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1991 – 1992
U.S. locations
13
States / cities
Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced Jun 25, 2026, 9:25 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Evaluation of Short-term Safety and Use Patterns of an Electronic Nicotine Delivery System

NCT01898169
View directory record Official record
Conditions
Nicotine Dependence
Interventions
NJOY King 26 mg nicotine Electronic Nicotine Delivery System
Other
Lead sponsor
LA Clinical Trials
Other
Eligibility
18 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Burbank, California
Source: ClinicalTrials.gov public record
Updated Jul 11, 2013 · Synced Jun 25, 2026, 9:25 PM EDT
Completed Early Phase 1 Interventional

Non Invasive Oral Cancer Screening Among HIV Infected Individuals

NCT02823847
View directory record Official record
Conditions
Malignant Neoplasms of Mesothelial and Soft Tissue, Human Immunodeficiency Virus
Interventions
Screening Interview, Carbon Monoxide Test, Self-Help Materials, Visual Oral Screening Examination, Direct Fluorescent Oral Visualization Examination, Oral Biopsy
Behavioral · Device · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2022 · Synced Jun 25, 2026, 9:25 PM EDT
Not listed Not applicable Interventional

Carbon Monoxide Monitoring and Emergency Treatment

NCT00841165
View directory record Official record
Conditions
Carbon Monoxide Poisoning
Interventions
Continuous Positive Airway Pressure, Non-rebreather oxygen mask
Device
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Apr 1, 2010 · Synced Jun 25, 2026, 9:25 PM EDT
Recruiting Phase 2 Interventional

Low-dose Carbon Monoxide (HBI-002) Trial to Evaluate Safety, Tolerability, PK, and Biomarkers in Parkinson's Disease

NCT07005180
View directory record Official record
Conditions
Parkinson Disease
Interventions
HBI-002, Vehicle (placebo)
Drug
Lead sponsor
Hillhurst Biopharmaceuticals, Inc.
Industry
Eligibility
40 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Farmington Hills, Michigan
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Jun 25, 2026, 9:25 PM EDT
Recruiting Not applicable Interventional

Novel Method to Assess Hepatic Regeneration and Predict Hepatic Related Morbidity After Partial Hepatectomy

NCT06681818
View directory record Official record
Conditions
Liver Cancer Adult, Liver Regeneration
Interventions
carbon monoxide measurement via smokerlyzer
Other
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2039
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Jun 25, 2026, 9:25 PM EDT
Completed No phase listed Observational

Effects of Hemoperitoneum Driven Carbon Monoxide on Post-Traumatic Stability and Platelet Aggregation

NCT01594034
View directory record Official record
Conditions
Hemoperitoneum
Interventions
expired air
Procedure
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older · Female only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 13, 2012 · Synced Jun 25, 2026, 9:25 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Carbon Monoxide Therapy for Severe Pulmonary Arterial Hypertension

NCT01523548
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Carbon Monoxide
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Jun 25, 2026, 9:25 PM EDT