Clinical trials: Blood Volume
Healthy
Characteristics of Different Types of Safety Lancets on Blood Volume and Perceived Pain in Male and Female Volunteers
The study was a randomized, single blind, uni-center pivotal study in male and female healthy volunteers, to determine capillary blood volume and pain perception obtained in a process of puncturing with different safety lancets.
- Trial name
- NCT04001348
- Testing
- Acti-Lance Lite, Acti-Lance Universal, Acti-Lance Special
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- HTL-Strefa S.A.
Blood Loss
Evaluation of the Zynex Blood Volume Monitor in Healthy Adult Patients During a Blood Draw
Non-invasive monitoring to measure changes in blood volume.
- Trial name
- NCT01846195
- Testing
- CM 1500
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Zynex Monitoring Solutions
Caffeine
Caffeine Supplementation, Resistance Training and Blood Antioxidant Status
The purpose of this study is to verify the effect of acute caffeine intake on resistance training volume and blood antioxidant status, in a randomised, double-blind, placebo-controlled crossover trial.
- Trial name
- NCT05230303
- Testing
- Caffeine supplementation
- Where
- Poland
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- The Jerzy Kukuczka Academy of Physical Education in Katowice
Obesity
Effect of Oral Feeding on Gastric Emptying, Gut Blood Flow, and Hormone Responses in Obese and Healthy Weight Subjects
Obesity is a complicated condition that is poorly understood. The aim of this study is to increase our knowledge of how the condition may arise, and what makes obese people remain obese.
- Trial name
- NCT03860623
- Where
- United Kingdom
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Hernia, Inguinal
Effects of Using Divided Mesh and Using a Non Divided Mesh on Testicular Blood Flow and Volume in Laparoscopic Hernia Repair
Laparoscopic inguinal hernia repair techniques has been compared with the open techniques in several studies. However, no one studied about the different uses of the same type of mesh on the same surgical technique, and effects…
- Trial name
- NCT03421925
- Testing
- Laparoscopic totally extraperitoneal procedure for inguinal hernia
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Okan University
Aortic Aneurysm
Patient Tailored Contrast Volume for Preoperative CT Angiography of the Aorta
An in-house calculator was developed to calculate the appropriate contrast dose, rather than standardly administering a 120ml dose.
- Trial name
- NCT05716568
- Testing
- Contrast dose reduction, CT-angiography
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Neuropathic Pain
Comparison of Pain-Related Changes in Cerebral Blood Volume in Burn Patients With Neuropathic Pain
The investigators will observe increased or decreased CBV in patients with thermal injury compared with the CBV in healthy controls.
- Trial name
- NCT04125576
- Testing
- magnetic resonance imaging(MRI)
- Where
- South Korea
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Hangang Sacred Heart Hospital
Cerebrovascular Circulation
Blood Brain Flow and Exercise
Cerebral vasodilator responses to CO2 will be measured in young healthy adults, healthy sedentary older adults, and healthy exercise trained older adults.
- Trial name
- NCT02653638
- Testing
- Control, Indomethacin
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Blood Loss
Noninvasive Monitor of Vascular Volume Fluid Shifts
Blood volume measurements are a critical step in the emergency care of trauma patients. The typical approach to this is to rely on historical information, physical examination and metrics such as heart rate.
- Trial name
- NCT05080881
- Testing
- phonocardiographic measurement: InnoVital Systems, phonocardiographic measurement: ThinkLabs StethOne, physiological measurements: BIOPAC
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Dartmouth-Hitchcock Medical Center
Blood Loss
Evaluation of the Zynex Blood Volume Monitor in Healthy Adult Volunteers During a Blood Draw
To determine if a manual blood loss can be detected using the non-invasive blood monitor.
- Trial name
- NCT01834612
- Testing
- CM1500
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Zynex Monitoring Solutions
Chronic Obstructive Pulmonary Disease
Oral Sildenafil for Exercise Capacity, Dyspnea and Cardiopulmonary Function in COPD
Chronic obstructive pulmonary disease (COPD) is a condition characterized by airway obstruction. Patients with COPD experience significant shortness of breath on exertion.
- Trial name
- NCT05061368
- Testing
- Sildenafil Citrate
- Where
- Canada
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Chronic Kidney Disease, Acute Kidney Injury
FAST GFR: Pilot Study to Evaluate the Safety of the FAST GFR Test in Patients.
This is a single site study designed to evaluate the FAST mGFR Test™ in healthy adult volunteers, patients with varying degrees of chronic kidney disease (CKD), and patients with acute kidney injury (AKI).
- Trial name
- NCT01978314
- Testing
- 75 mg / 6 mL VFI™
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- FAST BioMedical
Determine Validity of Concept of Using Hemoglobin Dilution to Assess/Measure Blood Volume.
Calculating Blood Volume by Dilution of Hemoglobin - Pilot Study
Although blood volume is such an important parameter in everyday clinical medicine it cannot be measured easily. As a matter of fact, it is almost never measured but estimated or calculated based upon numbers derived from mostly…
- Trial name
- NCT01900769
- Testing
- Blood Volume Dilution
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Kai Schoenhage
Pulmonary Ventilation
Comparison of Ventilation Tubes Among Anesthetized Pediatrics
To discover whether different types of ventilation breathing tube influence ventilation effect of children/ neonate, the investigators analysis tidal volume, end tidal carbon dioxide, compliance among children and neonate under…
- Trial name
- NCT03822689
- Testing
- Ventilator breathing tube F2220, Ventilator breathing tube F2216, Ventilator breathing tube F1520
- Where
- Taiwan
- Volunteers
- healthy volunteers welcome
- Sponsor
- Mackay Memorial Hospital
Surgical Blood Loss, Burns
Measurement of Blood Volume Loss During Burn Surgery
Burn surgery is associated with significant reductions in hematocrit. However, it is unclear whether these reductions are the result of hemodilution from non-red cell containing intraoperative transfusions or from loss of red…
- Trial name
- NCT03340116
- Testing
- Burn surgery, Measurement of RBC volume, plasma volume, and total blood volume using Daxor BVA-100
- Volunteers
- healthy volunteers welcome
- Sponsor
- Virginia Commonwealth University
Hypertension
Reduced Volume of Inspiratory Resistance Training
This clinical research study will investigate the dose of inspiratory muscle strength training needed to maintain cardiovascular adaptations induced by a six-week loading dose.
- Trial name
- REVIRT (NCT05744817)
- Testing
- Inspiratory muscle strength training
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Arizona
HIV Infections
A Study Evaluating Implementation Strategies for the Delivery of Cabotegravir in Low and High-Volume PrEP Site in the United States
This is a two-arm study evaluating the impact of two implementation strategy conditions, dynamic implementation and routine implementation on the feasibility of delivering of Cabotegravir PrEP in low and high-volume PrEP sites in…
- Trial name
- PILLAR (NCT05374525)
- Testing
- APRETUDE, Cabotegravir OLI
- Where
- 17 sites in United States
- Volunteers
- 287 people, healthy volunteers welcome
- Sponsor
- ViiV Healthcare
Ankylosing Spondylitis
Platelet and Red Blood Cell Volume Indices as Inflammatory Biomarkers in Ankylosing Spondylitis
this study aims to determine the relatioships among the NLR ,PLR ,MLR ,red cell volume and platelet volume indices levels as biomarkers in ankylosing spondylitis.
- Trial name
- NCT05997108
- Testing
- CBC
- Where
- Egypt
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Sohag University
Sleep Deprivation
Effects of Partial Sleep Deprivation on Cardiac Output During Cycling
The goal of this clinical trial is to determine if attenuations in cardiac output drive the blunted blood pressure response during cycling exercise following a night of partial sleep deprivation in young healthy adults (%50…
- Trial name
- NCT06679543
- Testing
- Partial sleep deprivation
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Guelph
Hemorrhage
Comparison of Physiological Variables During Blood Donation
The investigators have developed a system based on a pulse oximeter, a tablet, and an algorithm running on the tablet that analyzes the pulse oximeter waveform.
- Trial name
- NCT02029807
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver