Clinical trials: Hypoxic Conditions
Brain Hypoxia, Hypoxia
Cerebral Responses During Exercise in Hypoxia
While the exercise responses are classically described at the cardiorespiratory and muscle levels, recent data suggest that the brain is also significantly stressed by exercise and may even participate to performance limitation.
- Trial name
- CERVOX (NCT01614119)
- Testing
- Hypoxic exposure
- Where
- France
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
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
Fetal Hypoxia
Assessment of Cardiac Sparing in Fetal Hypoxia
The fetal heart plays a central role in the adaptive mechanisms for hypoxemia and placental insufficiency. Longitudinal data on the hemodynamic sequence of the natural history of fetal growth restriction show that the umbilical…
- Trial name
- NCT03146507
- Testing
- Ultrasound, Doppler ultrasound, Fetal echocardiography
- Where
- Egypt
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Assiut University
Trauma, Brain
The Role of Hypoxia on Subconcussive Head Impacts
The purpose of this study is to examine the combined effects of hypoxia and a short bout of subconcussive head impacts on neurocognitive and ocular-motor function and plasma expression of brain-derived blood biomarkers.
- Trial name
- NCT04624152
- Testing
- Soccer heading
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Indiana University
Tourniquet Pain, Ischemia-reperfusion
The Effect of Prolonged ischemıa and anesthetıc Agents on Oxidative Stress
The goal of this observational study is to learn about the relationship between postoperative pain and tourniquet-induced oxidative damage in adults undergoing orthopedic knee arthroscopy surgery.The goal of this observational…
- Conditions
- Tourniquet Pain, Ischemia-reperfusion, Postoperative Pain, Anesthesia
- Trial name
- NCT06942650
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Duzce University
Intermittent Hypoxia
Effects of Melatonin on Sleep, Ventilatory Control and Cognition at Altitude
Low oxygen at altitude causes pauses in breathing during sleep, called central sleep apnea. Central sleep apnea causes repeated awakenings and poor sleep.
- Trial name
- NCT03588676
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Robert L. Owens
Patent Foramen Ovale (PFO), High Altitude Pulmonary Edema
The Cardiovascular Effects of Patent Foramen Ovale in Hypoxia
Before birth, the foramen ovale is a normal opening in the heart that allows blood to flow from the mother to the baby. After birth, this opening usually closes.
- Trial name
- NCT07742540
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Hypoxia
Accuracy of Pulse Oximeters With Profound Hypoxia At Rest (NIHO19)
The aim of this study is to determine the accuracy of devices called pulse oximeters, which measure blood oxygen by shining light through fingers, ears or other skin, without requiring blood sampling.
- Trial name
- NCT05807477
- Testing
- Pulse Oximeter
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Nihon Kohden
Oxygen Deficiency
Validation of Next Generation Cerebral and Tissue Oximeter
This is a validation study of a near-infrared spectroscopy (NIRS) device designed to measure the cerebral tissue oxygen saturation.
- Trial name
- NCT03128372
- Testing
- Desaturation
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Medtronic - MITG
Premature, Premature Infant
Servo Controlled Oxygen Targeting (SCO2T) Study: Masimo vs. Nellcor
Most premature babies require oxygen therapy. There is uncertainty about what oxygen levels are the best. The oxygen levels in the blood are measured using a monitor called a saturation monitor and the oxygen the baby breathes is…
- Conditions
- Premature, Premature Infant, Oxygen Therapy, Hypoxia
- Trial name
- SCO2T (NCT04866342)
- Testing
- Servo control (closed-loop automatic control of the inspiratory fraction of oxygen (FiO2)) - IntellO2 OAM
- Where
- United Kingdom
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Colorectal Cancer, Sleep Apnea Syndromes
Prevalence of Sleep Apnea in Patients Undergoing Surgery for Colorectal Cancer
212 patients with colorectal cancer will be investigated before surgery and 100 of them after surgery. 597 individuals from a previous population based study will serve as controls to the prevalence of sleep apnea in the general…
- Conditions
- Colorectal Cancer, Sleep Apnea Syndromes, Hypoxia
- Trial name
- NCT02323464
- Testing
- Surgery for colorectal cancer, No Interventions
- Where
- Sweden
- Volunteers
- 212 people, healthy volunteers welcome
- Sponsor
- Karl A Franklin
Obesity, Type 2 Diabetes
Hyperbaric Oxygen Treatment Ameliorates Insulin Resistance
Obesity is an epidemic in Western society and is the biggest risk factor for insulin resistance and type 2 diabetes. The investigators have preliminary evidence showing that hyperbaric oxygen therapy rapidly increases insulin…
- Trial name
- HOTAIR (NCT01361971)
- Testing
- Hyperbaric Oxygen Treatment
- Where
- Australia
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Adelaide
Allogeneic Hematopoietic Stem Cell Transplantation (HSCT), Oxygen Deficiency
Impact of Closed PBSC Collection With Reduced Gas-Phase Oxygen Exposure on Graft Quality and Early Engraftment in Allo-HSCT
This study aims to establish a closed PBSC collection procedure with reduced gas-phase oxygen exposure and to verify its impact on graft functional quality and clinical engraftment efficiency.
- Conditions
- Allogeneic Hematopoietic Stem Cell Transplantation (HSCT), Oxygen Deficiency, Graft Function
- Trial name
- NCT07904234
- Testing
- Closed PBSC collection with reduced gas-phase oxygen exposure
- Where
- China
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Institute of Hematology & Blood Diseases Hospital, China
Hypoxia
Dark Chocolate and Exercise Performance in Hypoxia
Nitrate supplements (beetroot juice, pure sodium nitrate) have become common among endurance athletes because the ingestion of exogenous nitrate leads to increased levels of nitric oxide (NO) in the body.
- Trial name
- NCT03945916
- Testing
- Dark chocolate
- Where
- 2 sites in Canada
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Saskatchewan
Cervical Cancer
Biomarkers for Clinical Hypoxia Evaluation in Cervical Cancer
Patients with locally advanced cervical cancer (LACC) are primarily treated with radiotherapy +/- chemotherapy however 5-year survival rates are <60% with significant treatment toxicity.
- Trial name
- Bio-CHECC (NCT05029258)
- Testing
- Biopsy of tumour, MRI scans
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Manchester
Premature Infant, Oxygen Therapy
SCO2T (Servo vs. Servo)
Most premature babies require oxygen therapy. There is uncertainty about what oxygen levels are the best. The oxygen levels in the blood are measured using a monitor called a saturation monitor and the oxygen the baby breathes is…
- Conditions
- Premature Infant, Oxygen Therapy, Hypoxia, Hyperoxia
- Trial name
- NCT04546568
- Testing
- Servo control (closed-loop automatic control of the inspiratory fraction of oxygen (FiO2)) - Leoni plus CLAC, Servo control (closed-loop automatic control of the inspiratory fraction of oxygen (FiO2)) - IntellO2 OAM
- Where
- United Kingdom
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Physiological Function in Low Oxygen Environment
Rapid Acclimatization to Hypoxia at Altitude
In low oxygen environments, such as altitude, some adults may become ill and suffer from acute mountain sickness. Further, all adults will find that exercising becomes much more difficult when compared with exercise at lower…
- Trial name
- NCT01702025
- Testing
- Aminophylline, Methazolamide, Aminophylline+Methazolamide
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Colorado State University
Hypoxia
Belun SpO2 Accuracy Comparison to Arterial Blood CO-Oximetry
This study was a comparative, single-center, non-randomized study conducted to evaluate the SpO2 accuracy per standards and guidelines identified above for SpO2 accuracy for pulse oximetry equipment over the range of 70-100% SaO2…
- Trial name
- NCT04873947
- Testing
- Pulse Oximeter
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Belun Technology Company Limited
Hypoxia
OM2 Abbreviated Sensor Verification
The verification of an investigational pulse oximetry board to verify pulse rate and saturation accuracy over a specified saturation range in diverse populations.
- Trial name
- NCT06415799
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Medtronic - MITG
Swallowing Disorder, Perinatal Asphyxia
Effect of Non-nutritive Sucking on Transition to Oral Feeding in Infants With Asphyxia
The transition period to full oral feeding in infants with perinatal asphyxia is important in predicting long-term outcomes. The transition to independent oral feeding is accepted as a discharge criterion by the American Academy…
- Conditions
- Swallowing Disorder, Perinatal Asphyxia, Feeding; Difficult, Newborn, Feeding Disorder of Infancy or Early Childhood
- Trial name
- NCT05687708
- Testing
- Non-Nutritive Sucking
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Medipol University