Clinical trials: Pulmonary Gas Exchange
HSCT, Respiratory
Assessing Pulmonary Changes in HSCT
This will be an un-blinded, open-label study of children and adults, including those who are being evaluated for or who have undergone HSCT, those with existing respiratory conditions and/or diagnosed gas-exchange impairment, and…
- Conditions
- HSCT, Respiratory, Gas Exchange Impairment
- Trial name
- NCT07823036
- Testing
- Hyperpolarized 129 Xenon
- Where
- United States
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Hypertension, Pulmonary, Altitude Sickness
Efficacy Study of Riociguat and Its Effects on Exercise Performance and Pulmonary Artery Pressure at High Altitude
During ascent to high altitude there is a physiologic response to hypoxia that results in an elevated pulmonary arterial pressure associated with decreased exercise performance, altitude-induced pulmonary hypertension, and high…
- Trial name
- NCT02024386
- Testing
- Riociguat
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Richard Moon
COPD
Evaluation Inhaled Corticosteroids on Exhaled Nitric Oxide Gas Exchange
To evaluate the role of inhaled corticosteroids to suppress nitric oxide gas exchange in stable patients with moderate-to-severe COPD who are current non-smokers and not on oral corticosteroids.
- Trial name
- NCT00568347
- Testing
- fluticasone 100mcg/ salmeterol 50mcg, fluticasone 250/salmeterol 50, salmeterol
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Arthur F Gelb MD
Trauma ICU Patients, Endothelial Injury
Inflammation Severity and miRNA-126 in Trauma
Trauma triggers a complex immune response intended to eliminate danger signals and restore physiological balance. Early post-traumatic inflammation is primarily initiated by damage-associated molecular patterns (DAMPs) and…
- Trial name
- NCT07291908
- Where
- Turkey (Türkiye)
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Melike Cengiz
Idiopathic Pulmonary Fibrosis
Inhaled Nitric Oxide (iNO) in Idiopathic Pulmonary Fibrosis (IPF).
Idiopathic Pulmonary Fibrosis (IPF) is a progressive lung disease marked by reduced exercise capacity and activity-related breathlessness (commonly termed dyspnea).
- Trial name
- NCT05052229
- Testing
- Nitric Oxide, Medical air
- Where
- Canada
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Dr. Denis O'Donnell
Cardio Respiratory Arrest, Cardiac Death
Ventilation in Cardiac Arrest
Over the last decades, research in cardiopulmonary resuscitation was primarily focused on uninterrupted chest compressions to restore sufficient circulation.
- Conditions
- Cardio Respiratory Arrest, Cardiac Death, Ventilation Therapy; Complications, Apnea
- Trial name
- VICA (NCT04657393)
- Testing
- mechanical ventilation
- Where
- Austria
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
COPD
Pulmonary Gas Exchange Abnormalities in Patients With Mild COPD
People with mild chronic obstructive pulmonary disease (COPD) can have significant physiological abnormalities and breathing inefficiency which become more pronounced during the stress of exercise, leading to intolerable…
- Trial name
- NCT02346604
- Where
- Canada
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Queen's University
Idiopathic Pulmonary Fibrosis, Hypersensitivity Pneumonitis
129Xe Gas Exchange Imaging in IPF and cHP: A Reliability Study
This research is a study to test the reliability of Hyperpolarized Xenon MRI (HXe MRI) as a biomarker in interstitial lung disease.
- Trial name
- NCT04677426
- Testing
- Hyperpolarized Xe129
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Long COVID, Breathlessness
Long COVID and Post-exertional Pulmonary Diffusion
Aim of investigators was to study whether abnormalities of lung diffusing capacity for nitric oxide (DLNO) and carbon monoxide (DLCO) in long COVID may have a clinical impact in relation to exercise intolerance.
- Conditions
- Long COVID, Breathlessness, Exercise Intolerance, Alveolar Lung Disease
- Trial name
- Long_COVID_Ex (NCT05430503)
- Testing
- Lung volumes, spirometry and standard single-breath DLCO were measured at rest while combined DLNO and DLCO were measured at rest and post-exercise
- Where
- Italy
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
Lung Diffusion, Acute Respiratory Failure
Evaluation of Gas Exchange by the Measurement of Lung Diffusion for Carbon Monoxide During General Anaesthesia
Mechanical ventilation is a therapeutic method used in order to keep gas exchange adequate to cell metabolism in patients with acute respiratory failure.
- Trial name
- NCT01503879
- Where
- Italy
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- San Gerardo Hospital
Positive Pressure Ventilation
Flow- Versus Volume-controlled Ventilation During Robot-assisted Laparoscopic Radical Prostatectomy
During robot-assisted laparoscopic radical prostatectomy (RALRP), patients are placed under general anesthesia and supported with mechanical ventilation.
- Trial name
- NCT07453810
- Testing
- Flow-Controlled Ventilation, Volume-Controlled Ventilation
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Ankara Etlik City Hospital
Respiratory Failure
The Effects of Sound Energy on Pulmonary Gas Exchange
Study of the effects of sonic pressure oscillations on pulmonary gas exchange with added dead space.
- Trial name
- NCT02447731
- Testing
- Induction of sound waves in lungs by "sonic oscillator"
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Loma Linda University
Diffusion Limitation of Pulmonary Gas Exchange in Systemic Sclerosis
Mechanisms of Pulmonary Diffusion Limitation in Systemic Sclerosis
This study was designed to test the hypothesis that, irrespective of the degree of interstiaI lung disease and/or pulmonary arterial hypertension, the combined measurement of lung diffusing capacity for nitric oxide and carbon…
- Trial name
- DL-SSc (NCT03601520)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
Chronic Respiratory Diseases, Cystic Fibrosis
Breath Analysis and Arterial Stiffness in Patients With Respiratory Diseases
Assessment of cardiovascular disorders using echocardiography and arterial stiffness; comparative noninvasive assessment of volatile organic compound (eVOC) exhale breath patterns in patients with different chronic respiratory…
- Conditions
- Chronic Respiratory Diseases, Cystic Fibrosis, Lymphangioleiomyomatosis, Hypersensitivity Pneumonitis
- Trial name
- NCT05727852
- Testing
- Breath test using the Compact PTR-TOF-MS, Portable cardiac monitor "CardioQvark", Assessment of arterial stiffness using the VaSera VS-1500N
- Where
- Russia
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Interstitial Lung Disease, Chronic Thromboembolic Pulmonary Hypertension
129Xe MRI Cardiopulmonary
The goal of this NIH-sponsored study is to characterize three biomarkers derived from 129Xe gas exchange MRI and to understand how they change in response to interventions.
- Conditions
- Interstitial Lung Disease, Chronic Thromboembolic Pulmonary Hypertension, Acute Pulmonary Embolism, Anemia
- Trial name
- NCT06038630
- Testing
- Hyperpolarized Xe129, Oxygen Administration
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Bastiaan Driehuys
Pulmonary Disease, Respiratory System Abnormalities
Distribution of Ventilation, Respiratory Drive and Gas Exchange: Measurements and Monitoring
Respiratory physiology involves a complex interplay of elements including control of breathing, respiratory drive, pulmonary mechanics, distribution of ventilation and gas exchange.
- Conditions
- Pulmonary Disease, Respiratory System Abnormalities, OSA, Respiratory Failure
- Trial name
- NCT05462600
- Testing
- Position change
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Interstitial Lung Diseases
Optimizing and Standardizing 129Xe Gas Exchange MRI to Visualize Regional Therapy Response in Interstitial Lung Disease
The purpose of this multi-centered, NIH-sponsored study is to develop an optimal protocol for using noninvasive 129Xe gas exchange MRI to detect changing disease activity in interstitial lung diseases (ILDs).
- Trial name
- NCT04855305
- Testing
- Hyperpolarized 129Xe
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Bastiaan Driehuys
ILD
Gas Exchange MRI to Visualize Regional Therapy Response in Interstitial Lung Disease
The purpose of this multi-centered, NIH-sponsored study is to to develop an optimal protocol for using non-invasive 129Xe gas exchange MRI to detect changing disease activity in interstitial lung diseases (ILDs).
- Trial name
- Xe MRI in ILD (NCT06012500)
- Testing
- Xenon-129
- Where
- United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Acute Lung Injury, ARDS
The Specific Elastance in Acute Lung Injury/Acute Respiratory Distress Syndrome (ALI/ARDS) Patients
The investigators aim to study the specific elastance in ALI/ARDS patients during invasive mechanical ventilation.
- Trial name
- NCT00143468
- Testing
- mechanical ventilation
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Policlinico Hospital
Cardiorespiratory Fitness, Metabolic Health
Validation of a Novel Incremental Step Test for Assessment of Cardiopulmonary Fitness and Ventilatory Thresholds in Adults
The purpose of this single-group diagnostic validation and test-retest reliability study is to determine whether a novel Incremental Step Test (IST) can accurately assess cardiorespiratory fitness and ventilatory thresholds in…
- Conditions
- Cardiorespiratory Fitness, Metabolic Health, Cardiac Function, Pulmonary Function
- Trial name
- VALID-IST (NCT07829003)
- Testing
- Cardiopulmonary Exercise Test, Incremental Step Test
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Heriot-Watt University