Clinical trials: Hypercapnia
Amyotrophic Lateral Sclerosis (ALS)
Developing New Ways to Detect Respiratory Impairment Early in ALS
The goal of this observational study is to develop new ways to detect early changes associated with amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease.
- Trial name
- NCT07844590
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Thomas Jefferson University
Oxygen Toxicity, Hypercapnia
Oxygen Toxicity: Mechanisms in Humans
The goal of this clinical trial is to learn about the mechanisms of oxygen toxicity in scuba divers. The main questions it aims to answer are: How does the training of respiratory muscles affect oxygen toxicity? How do…
- Conditions
- Oxygen Toxicity, Hypercapnia, Seizures
- Trial name
- NCT05761756
- Testing
- Sleep Deprivation, Caffeine, Methylphenidate
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Duke University
Pain, Hypoxia
Effects of Static Apnea at High Lung Volume on Hypoalgesia, Cardiovascular Function and Respiratory Function
The aim of this randomized controlled study is to explore the hypoalgesic response of a 6 minutes of intermittent static apneas training session at high lung volume in healthy subjects; also, as secondary objectives, to analyze…
- Conditions
- Pain, Hypoxia, Hypercapnia, Apnea
- Trial name
- NCT06150677
- Testing
- Voluntary apnoea
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Centro Universitario La Salle
Healthy, Hypercapnia
Study of Brain Blood Flow During Induced Hypercapnia (Excess Blood Carbon Dioxide)
This study will evaluate magnetic resonance imaging (MRI ) methods for measuring changes in the brain's blood flow during hypercapnia (a condition of excess carbon dioxide in the blood).
- Trial name
- NCT00001845
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Panic Disorder
A Trial of the Effect of CVL-865 on Panic Symptoms Induced by Carbon Dioxide Inhalation in Healthy Subjects
The purpose of this study is to determine anxiolytic effect of multiple doses of CVL-865 using an experimental medicine model of carbon dioxide (CO2) inhalation in healthy volunteers.
- Trial name
- NCT04592536
- Testing
- CVL-865 High dose, Alprazolam 1mg XR, CVL-865 low dose
- Where
- Netherlands
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Cerevel Therapeutics, LLC
Pain, Hypoxemia
Effects of Walking Apnea At High Lung Volume on Hypoalgesia
The aim of this randomized controlled study is to explore the hypoalgesic response of a 6 minutes of intermittent walking apneas training session at high lung volume in healthy subjects; also, as secondary objectives, to analyze…
- Conditions
- Pain, Hypoxemia, Hypercapnia, Apnea
- Trial name
- NCT06638528
- Testing
- Walking apnea at High Lung Volume, Walking normal breathing
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universidad Rey Juan Carlos
TBI
Non-invasive Measurement of Cerebrovascular Reactivity After Traumatic Brain Injury
The investigators will longitudinally measure cerebrovascular reactivity (CVR) by functional near-infrared spectroscopy (fNIRS) in acute (≤3 days from injury), subacute, and chronic phases after TBI as a biomarker of TCVI as…
- Trial name
- NCT02990078
- Testing
- Sildenafil citrate, Functional Near Infared Spectroscopy, Hypercapnia Challenge
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Hypoxia, Anesthetics
Acute Ventilatory Response to Hypoxia During Sedation With Dexmedetomidine Compared to Propofol in Healthy Male Volunteers
The overall aim with this project is to investigate the effect of dexmedetomidine on control of breathing in healthy volunteers and to compare it with propofol at the same degree of sedation.
- Conditions
- Hypoxia, Anesthetics, Conscious Sedation, Hypercapnia
- Trial name
- NCT01873612
- Testing
- Hypoxic ventilatory response, Hypercapnic ventilatory response
- Where
- Sweden
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Karolinska University Hospital
Hypercapnia, Ventilatory Depression
Effect of Selective Serotonin Reuptake Inhibitors (SSRIs) and an Opioid on Ventilation
This study is designed to evaluate the effects of the coadministration of paroxetine or escitalopram with an opioid on ventilation. Ventilation will be assessed using a rebreathing methodology.
- Trial name
- NCT05470465
- Testing
- Paroxetine and Oxycodone, Escitalopram and Oxycodone
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Food and Drug Administration (FDA)