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ClinicalTrials.gov public records Last synced Oct 2, 2026, 7:02 AM EDT

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Showing 1–24 of 69 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Carbon Dioxide (CO2) 5% Clear all
Completed Not applicable Interventional

A Noninvasive Multimodal Biosensing Device for Screening and Monitoring Response to Treatment of Infectious Respiratory Diseases

NCT05035420
View directory record Official record
Conditions
COVID-19, Upper Respiratory Infection, Lower Respiratory Infection
Interventions
Fitbit, Douglas Bag, Periflux 6000 EPOS, BIOPAC, Flowmet, NIRS
Device
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 78 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 5, 2025 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional

Prematurity Related Ventilatory Control (PRE-VENT) - Specific Aim 2

NCT03333161
View directory record Official record
Conditions
Infant,Premature
Interventions
Cardiorespiratory monitoring
Diagnostic Test
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 15 Days
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 21, 2021 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional

A Simple Clinical Maneuver to Reduce Laparoscopy Induced Shoulder Pain

NCT00575237
View directory record Official record
Conditions
Shoulder Pain
Interventions
Recruitment manouver
Procedure
Lead sponsor
Phelps, Paul, M.D.
Individual
Eligibility
15 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Wildomar, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2007 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

CO2 Laser vs Lidocaine for Vestibulodynia in Premenopausal Women

NCT05336825
View directory record Official record
Conditions
Vulvodynia
Interventions
CO2 laser, Lidocaine patch 5%
Device · Drug
Lead sponsor
Atlantic Health System
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Denville, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 20, 2022 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fractional CO2 Laser System (Fraxel Repair Laser) Intended for Treatment of Perioral Rhytides/Wrinkles

NCT03715049
View directory record Official record
Conditions
Wrinkle
Interventions
Fraxel Laser Treatment
Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 22, 2018 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Spire Medical Health Tag Respiratory Rate Validation in Adults

NCT04104737
View directory record Official record
Conditions
Respiratory Rate
Interventions
Spire Medical Health Tag
Device
Lead sponsor
Spire, Inc.
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
2
States / cities
San Francisco, California • Louisville, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced Oct 2, 2026, 7:02 AM EDT
Enrolling by invitation Not applicable Interventional

Low-Intensity Mechanical Ventilation in the Operating Room: a Pilot Study

NCT07277244
View directory record Official record
Conditions
Robotic Surgery, Post Operative Pulmonary Complications
Interventions
Low Intensity Mechanical Ventilation
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 2, 2026, 7:02 AM EDT
Suspended Not applicable Interventional

Insulin Sensitivity in Men With the Metabolic Syndrome

NCT00433173
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
intravenous glucose tolerance test, testosterone, anastrozole, goserelin acetate implant, aerobic capacity (VO2 Max), MRI, muscle biopsy, measurement of resting metabolic rate (energy expenditure), Dual energy x-ray absorptiometry, Fasting oral glucose tolerance test
Procedure · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
50 Years to 75 Years · Male only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 2, 2010 · Synced Oct 2, 2026, 7:02 AM EDT
Recruiting Not applicable Interventional

Carbon Dioxide (CO2) Chemosensitivity and SUDEP

NCT04134754
View directory record Official record
Conditions
Epilepsy, SUDEP
Interventions
6% Carbon dioxide/50% oxygen/balance nitrogen mixture
Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 99 Years
Enrollment
335 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Exercise and Energy Balance on 24-hour Blood Glucose Control

NCT03350997
View directory record Official record
Conditions
Metabolic Disease, Adipose Tissue
Interventions
Trial 2 Exercise, Trial 1 Exercise
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Oct 2, 2026, 7:02 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Carbon Dioxide Administration and Brain Waste Clearance

NCT07357090
View directory record Official record
Conditions
Traumatic Brain Injury, Aging Disorder, Magnetic Resonance Imaging (MRI)
Interventions
Hypercapnia task performed during fMRI
Other
Lead sponsor
Andrew Mayer
Other
Eligibility
18 Years to 82 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 2, 2026, 7:02 AM EDT
Withdrawn Not applicable Interventional

Noninvasive Positive Airway Pressure in the Pediatric Emergency Department for the Treatment of Acute Asthma Exacerbations

NCT01497691
View directory record Official record
Conditions
Asthma
Interventions
NIPPV (PALMtop PTV), Volumetric CO2 (NM3), USCOM
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
2 Years to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 24, 2017 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Sibling Oocyte Study- Comparison of ZyMotTM Microfluidics Device to Density Gradient for Sperm Selection During ICSI

NCT04818593
View directory record Official record
Conditions
ART
Interventions
ZyMot Multi Sperm Separation Device (850 ul), Density Gradient Centrifugation
Device · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Substance P Neurotransmission in Panic Disorder by PET Imaging of NK1 Receptors With [18F]SPA-RQ

NCT00088738
View directory record Official record
Conditions
Panic Disorder, Healthy
Interventions
[18F] SPA-RQ
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 2, 2026, 7:02 AM EDT
Recruiting Not applicable Interventional

SEACOAST 1- SEdAtion With COllAteral Support in Endovascular Therapy for Acute Ischemic Stroke

NCT03737786
View directory record Official record
Conditions
Acute Stroke
Interventions
Tight control of end-tidal CO2 levels
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 110 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 26, 2025 · Synced Oct 2, 2026, 7:02 AM EDT
Completed No phase listed Observational

Home Sleep Testing in Neuromuscular Disease Patients

NCT00695591
View directory record Official record
Conditions
Neuromuscular Disease
Interventions
Evaluation for Nocturnal non invasive ventilation
Other
Lead sponsor
Landon Pediatric Foundation
Other
Eligibility
8 Years to 50 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2014 · Synced Oct 2, 2026, 7:02 AM EDT
Recruiting Not applicable Interventional

Cross-System Effects of Acute Intermittent Hypercapnia-Based Interventions in PD

NCT07674264
View directory record Official record
Conditions
Parkinson Disease, Parkinsonism
Interventions
Acute intermittent hypercapnic hypoxia (AIHH), Acute intermittent hypercapnic normoxia (AIHN)
Other
Lead sponsor
University of Florida
Other
Eligibility
40 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Noninvasive Ventilation Masks Carbon Dioxide Clearance in Normal Volunteers

NCT03882723
View directory record Official record
Conditions
CO2 Clearance, Mask Comfort, Rebreathing Exhaled Gas
Interventions
Evaluated 4 masks used for NIV with mechanical ventilators
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy Study of GLYC-101 to Evaluate Outcomes After Post-laser Ablation

NCT00656474
View directory record Official record
Conditions
Wounds
Interventions
Placebo gel, GLYC-101 gel (1.0 %)
Drug
Lead sponsor
TR Therapeutics
Industry
Eligibility
25 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Beverly Hills, California
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional

Mild Intermittent Hypoxia and Its Multipronged Effect on Sleep Apnea

NCT03736382
View directory record Official record
Conditions
Obstructive Sleep Apnea, Spinal Cord Injuries
Interventions
Mild intermittent hypoxia, Sham protocol, Continuous positive airway pressure (CPAP)
Other
Lead sponsor
Wayne State University
Other
Eligibility
18 Years to 60 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
2
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 2, 2026, 7:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Optical Imaging Measurement of Intravascular Solution Efficacy Trial

NCT01743872
View directory record Official record
Conditions
Peripheral Artery Disease
Interventions
Contrast Injection, Dextran Injection, CO2 Injection, Heparinized Normal Saline Injection
Procedure
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Oct 2, 2026, 7:02 AM EDT
Terminated Phase 2 Interventional

S9709, Laser Surgery Plus Radiation Therapy in Treating Patients With Early Stage Cancer of the Larynx

NCT00003040
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
laser surgery, radiation therapy
Procedure · Radiation
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2007
U.S. locations
12
States / cities
Little Rock, Arkansas • Los Angeles, California • Sacramento, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2012 · Synced Oct 2, 2026, 7:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Comparison of Pulse Oximetry, End-tidal Capnometry, and Integrated Pulmonary Index (IPI)

NCT01191528
View directory record Official record
Conditions
Postoperative Care
Interventions
capnostream 20, Oridian Medical 1987 ltd, Needham MA
Device
Lead sponsor
Allenmore Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Dec 13, 2010 · Synced Oct 2, 2026, 7:02 AM EDT
Recruiting Not applicable Interventional

Hypoxia Pathways for Early Recovery After Spinal Cord Injury

NCT07002437
View directory record Official record
Conditions
Spinal Cord Injuries (SCI)
Interventions
Augmented Acute Intermittent Hypoxia (aAIH), Acute Intermittent Hypercapnic-Hypoxia (AIHH), Sham AIH
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Oct 2, 2026, 7:02 AM EDT