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ClinicalTrials.gov public records Last synced Sep 22, 2026, 10:36 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Blood Gas Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nonin 4 Wavelength Cerebral Oximeter Study

NCT01762722
View directory record Official record
Conditions
Healthy
Interventions
Reduction of inspired oxygen
Device
Lead sponsor
Duke University
Other
Eligibility
21 Years to 35 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 15, 2013 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Risk Factors for Post-Operative Respiratory Complications in Patients at Risk for OSA

NCT02729077
View directory record Official record
Conditions
Respiratory Complications
Interventions
Pulse Oximetry
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 75 Years
Enrollment
324 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional

Correlation of Arterial Blood Gas (ABG) and Venous Blood Gas (VBG) in the Undifferentiated Critically Ill Patient

NCT01287884
View directory record Official record
Conditions
Patients Needing Blood Gases
Interventions
Venous Blood Gas
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Nov 8, 2012 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of Ice Application to Reduce Pain From Arterial Punctures

NCT02065115
View directory record Official record
Conditions
Vessel Puncture Site Pain
Interventions
Cryotherapy (ice pack)
Other
Lead sponsor
St. Joseph Hospital, New Hampshire
Other
Eligibility
18 Years to 100 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Nashua, New Hampshire
Source: ClinicalTrials.gov public record
Updated Nov 28, 2024 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional

Expanded Quantitative Urinary Culture (EQUC) vs Standard Culture (SUC) Techniques in the Clinical Care

NCT03190421
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
Expanded Urinary Culture, Standard Urine Culture (SUC)
Diagnostic Test
Lead sponsor
Loyola University
Other
Eligibility
18 Years and older · Female only
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Phase 3 Interventional Results available

Non-Invasive Vagal Nerve Stimulation in Opioid Use Disorders

NCT04556552
View directory record Official record
Conditions
Substance-Related Disorders, Substance Use Disorders, Substance Abuse, Intravenous, Substance Withdrawal, Substance Abuse, Opioid-use Disorder, Opioid Use Disorder, Severe, Opioid Use
Interventions
Non invasive VN stimulation (nVNS), Oxygen (15-O) Water, Sham Stimulation
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Sep 22, 2026, 10:36 PM EDT
Terminated No phase listed Observational

Study of Proton SBRT and Immunotherapy for Recurrent/Progressive Locoregional or Metastatic Head and Neck Cancer

NCT03539198
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Proton Stereotactic Body Radiation Therapy (SBRT) (5 fractions; 3500-4500 cGy), Proton Stereotactic Body Radiation Therapy (SBRT) (3-5 fractions; various dose and fractionation regimens depending on treatment site)., Nivolumab 3 mg/kg IV q2 weeks, Proton or Photon SBRT (3-5 fractions; various dose and fractionation regimens depending on treatment site).
Radiation · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 13, 2024 · Synced Sep 22, 2026, 10:36 PM EDT
Terminated No phase listed Observational

Obesity Hypoventilation Syndrome Prevalence Study

NCT01964339
View directory record Official record
Conditions
Obesity Hypoventilation Syndrome
Interventions
BMI greater than or equal to 30kg/m2 scheduled for PSG. Undergo blood draw (venous blood gas and metabolic panel) and data collection from PSG study., BMI greater than or equal to 30kg/m2 scheduled for PSG. Undergo blood draw (arterial blood gas and metabolic panel) and data collection from PSG study.
Other
Lead sponsor
Philips Respironics
Industry
Eligibility
21 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational

Clinical Performance Evaluation of Pediatric and Neonatal Low Saturation Oximetry Sensors

NCT00843401
View directory record Official record
Conditions
Low Oxygen Saturation
Interventions
Not listed
Lead sponsor
Children's National Research Institute
Other
Eligibility
Up to 21 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 1, 2011 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pulse Oximeter Hypoxia

NCT04562584
View directory record Official record
Conditions
Oximetry
Interventions
MyHomeDoc
Device
Lead sponsor
MyHomeDoc Ltd.
Industry
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 23, 2020 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Diagnostic Device for the Assessment of Pulpal Blood Flow

NCT03578549
View directory record Official record
Conditions
Dental Pulp Test
Interventions
Pulse Oximetry
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 22, 2026, 10:36 PM EDT
Not yet recruiting No phase listed Observational

Observational Data Collection for Blood Hemoglobin Algorithm Validation in Pediatrics

NCT07706140
View directory record Official record
Conditions
Hemoglobin, Cerebral Oxygenation, Congenital Heart Disease
Interventions
Noninvasive hemoglobin monitoring
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
0 Days to 21 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 22, 2026, 10:36 PM EDT
Not listed Not applicable Interventional

Evaluation of Clinical Tool to Improve Adherence to Ventilator Management at UM

NCT05661695
View directory record Official record
Conditions
Respiratory Therapy
Interventions
RT Assistant
Device
Lead sponsor
Convergent Engineering, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 22, 2026, 10:36 PM EDT
Withdrawn Phase 2 Interventional

Effects of Prolonged Delivery of Nitric Oxide Gas on Plasma Reduction-Oxidation Reactions in Cardiac Surgical Patients

NCT04022161
View directory record Official record
Conditions
Cardiovascular Diseases, Oxidative Stress, Endothelial Dysfunction
Interventions
Nitrogen Gas for Inhalation, Blood withdrawal, Nitric Oxide
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 22, 2026, 10:36 PM EDT
Terminated Not applicable Interventional Results available

Evaluating the Use of Thromboelastography (TEG) in Patient's Requiring Extracorporeal Membrane Oxygenation (ECMO)

NCT02887820
View directory record Official record
Conditions
Heart Disease, Lung Disease
Interventions
Thromboelastograph
Device
Lead sponsor
Stephen Esper
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional

The Influence of Cardiorespiratory Fitness on Firefighter Cardiovascular Health Under Exercise Conditions

NCT04514354
View directory record Official record
Conditions
Cardiovascular Diseases, Post-Exercise Hypotension
Interventions
GEST
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pulse Oximeter Test

NCT03569163
View directory record Official record
Conditions
Hypoxia
Interventions
Spry Loop oximeter
Device
Lead sponsor
Spry Health
Industry
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional Results available

Feasibility of Obtaining Pulse Oximetry Readings From the Oropharynx

NCT05690633
View directory record Official record
Conditions
Surgery, Arterial Catheterization, Peripheral
Interventions
Pulse oximetry
Device
Lead sponsor
Joseph D. Tobias
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational

Correlation of PaCO2 to the Inspired and Expired Oxygen Gradient

NCT01513213
View directory record Official record
Conditions
Neurosurgery
Interventions
Not listed
Lead sponsor
Swedish Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 23, 2017 · Synced Sep 22, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Accuracy of Pulse Oximeters With Profound Hypoxia

NCT03710980
View directory record Official record
Conditions
Oximetry
Interventions
Oximeter
Device
Lead sponsor
Hancock Medical, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 17, 2018 · Synced Sep 22, 2026, 10:36 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Oxygen Toxicity: Mechanisms in Humans

NCT05761756
View directory record Official record
Conditions
Oxygen Toxicity, Hypercapnia, Seizures
Interventions
Sleep Deprivation, Caffeine, Methylphenidate, Carbon Dioxide
Behavioral · Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 45 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Sep 22, 2026, 10:36 PM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Intracervical Balloon Placement With Nitrous Oxide Administration

NCT06498908
View directory record Official record
Conditions
Labor Pain, Induced; Birth
Interventions
Nitrous oxide, Oxygen
Drug
Lead sponsor
Jefferson Drapkin
Other
Eligibility
18 Years to 45 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Sep 22, 2026, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

EmbracePlus SpO2 Accuracy Validation

NCT04964609
View directory record Official record
Conditions
Oximetry
Interventions
EmbracePlus
Device
Lead sponsor
Empatica, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 24, 2022 · Synced Sep 22, 2026, 10:36 PM EDT
Recruiting No phase listed Observational

Continuous Jugular Venous Oxygen Saturation (SjO2) Measurement After Cardiac Arrest

NCT06511999
View directory record Official record
Conditions
Cardiac Arrest
Interventions
Continuous SjO2 monitoring with a PediaSat Oximetry Catheter, Intermittent SjO2 monitoring with a PediaSat Oximetry Catheter
Device · Diagnostic Test
Lead sponsor
Byron Drumheller
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 22, 2026, 10:36 PM EDT