Clinical trials: Blood Circulation Disorder
Peripheral Artery Disease
Dietary Nitrates and Vascular Function in Patients With Peripheral Artery Disease
The overarching question addressed in the current project is: Does dietary nitrate supplementation (8 weeks) improve physiological function in patients with peripheral arterial disease (PAD)? The investigators will specifically…
- Trial name
- NCT01983826
- Testing
- Sodium Nitrate
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- University of Iowa
Type 1 Diabetes, Hypoglycemia Unawareness
Naltrexone and Hypoglycemia in Type 1 Diabetes
Low blood sugar is also called hypoglycemia. Usually, it is mild and can be treated quickly and easily by eating or drinking a small amount of a sugar-rich food.
- Trial name
- Naltrexone (NCT01053078)
- Testing
- Naltrexone
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Asthma
Acute Airway Vascular Smooth Muscle Effects of Inhaled Budesonide
Glucocorticosteroids recently have been shown to have non-genomic actions that are plasma membrane-mediated and do not require gene transcription and translation.
- Trial name
- NCT01219738
- Testing
- Budesonide 360ug, Budesonide 720ug, Budesonide 1440ug
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- University of Miami
Peripheral Arterial Disease, Peripheral Artery Disease
Impacts of Mitochondrial-targeted Antioxidant on Peripheral Artery Disease Patients
Peripheral artery disease (PAD) is a common cardiovascular disease, in which narrowed arteries reduce blood flow to the limbs, causing pain, immobility and in some cases amputation or death.
- Trial name
- NCT03506633
- Testing
- MitoQ
- Where
- United States
- Volunteers
- 14 people
- Sponsor
- University of Nebraska
Cerebrovascular Disorders
HYPEROXIA Responses and ROS
30 participants (15 males and 15 females) who are ≥18 - ≤ 40 years old and considered healthy will be enrolled into this study to test the role of reactive oxygen species (ROS) in regulating cerebral blood flow (CBF).
- Trial name
- NCT05958303
- Testing
- Antioxidant Cocktail
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Type1diabetes, Type1 Diabetes Mellitus
Evaluation of Coffee Therapy for Improvement of Renal Oxygenation
Over 1.25 million Americans have Type 1 Diabetes (T1D), increasing risk for early death from cardiovascular disease (CVD). Despite advances in glycemic and blood pressure control, a child diagnosed with T1D is expected to live up…
- Conditions
- Type1diabetes, Type1 Diabetes Mellitus, Diabetic Kidney Disease, Juvenile Diabetes
- Trial name
- COFFEE (NCT03878277)
- Testing
- Starbucks® Cold brew - 325ml bottle
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- University of Colorado, Denver
Peripheral Arterial Disease
Effect of Beetroot Juice on Coronary Blood Flow and Walking Performance in PAD
In this study the investigators will test the hypothesis that short-term consumption of inorganic nitrate (supplied in concentrated beetroot juice) enhances coronary blood flow responses, large artery hemodynamics, and leg…
- Trial name
- HeartBeet (NCT02553733)
- Testing
- Beetroot juice
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- David N. Proctor, PhD
Hypertension
Safety and Efficacy of Valsartan vs Atenolol and Hydrochlorothiazide Combination on Blood Flow in Hypertensive Patients
This study evaluated the effect of valsartan on small vessel blood flow in patients with mild-to-moderate hypertension in direct comparison to atenolol and hydrochlorothiazide.
- Trial name
- NCT00396656
- Testing
- Atenolol, Hydrochlorothiazide (HCTZ)), Valsartan
- Where
- 2 sites in Germany, Switzerland
- Volunteers
- 30 people
- Sponsor
- Novartis
Pre-Eclampsia
Role of ASpirin in Placental and Maternal Endothelial Cell Regulation IN Pre-eclampsia
Endothelial dysfunction and defective placental vascularization are hypothesized to be significant causes of preeclampsia. In preeclampsia, due to vascular endothelial dysfunction, vasoconstriction and platelet activation can…
- Trial name
- ASPERIN (NCT03893630)
- Testing
- Acetylsalicylic Acid 81 mg, Acetylsalicylic Acid 162 mg, Control
- Where
- United States
- Volunteers
- 208 people, healthy volunteers welcome
- Sponsor
- John O'Brien, MD
Benign Prostatic Hyperplasia
A Study in Benign Prostatic Hyperplasia
The purpose of this trial is to evaluate the effect of tadalafil 5 milligrams (mg) daily for 8 weeks compared to placebo on prostatic blood perfusion in men with signs and symptoms of Benign Prostatic Hyperplasia (BPH), measured…
- Trial name
- NCT01152190
- Testing
- Tadalafil
- Where
- 5 sites in United States, Austria and 1 more
- Volunteers
- 97 people
- Sponsor
- Eli Lilly and Company
COPD
Effect of Roflumilast on Airway Blood Flow as an Expression of Airway Inflammation in COPD
The objectives of the proposed study are to determine 1) the effect of a single dose of Roflumilast on airway blood flow (Qaw) (study period 1) and 2) the effect of long-term Roflumilast treatment on airway blood flow reactivity…
- Trial name
- NCT02097992
- Testing
- Roflumilast
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- University of Miami
Type 2 Diabetes
Type 2 Diabetes and Exercise Function in Single Leg Exercises
This study plans to learn more about the effects of type 2 diabetes (T2DM) on exercise blood flow and muscle oxygen uptake. This study will evaluate \& compare exercise function during single leg plantar flexion exercise in a…
- Trial name
- NCT01793909
- Testing
- Single Leg Exercise Training
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Hyperthermia, Cocaine Use
Intranasal Cocaine and Temperature Regulation During Exercise
Assess the effects of intranasal cocaine on temperature regulation and whole-body sweat rate during exercise in warm environmental conditions.
- Conditions
- Hyperthermia, Cocaine Use, Exercise
- Trial name
- NCT05809453
- Testing
- Cocaine, Lidocaine
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Irritable Colon
Study to Assess the Effect Of Alosetron On Mucosal Blood Flow
This study will look at colonic mucosal blood flow in subjects who have taken alosetron vs placebo and healthy volunteers vs diarrhea-predominant Irritable Bowel Syndrome (d-IBS) patients.
- Trial name
- NCT00370032
- Testing
- alosetron
- Where
- United Kingdom
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Alzheimer Disease
Stimulating Neural Activity to Improve Blood Flow and Reduce Amyloid: Path to Clinical Trials
Alzheimer's disease is characterized by the accumulation of toxic proteins in the brain. Mechanisms to remove these proteins have been the target of many drug trials.
- Trial name
- FLICKER (NCT03543878)
- Testing
- Flicker
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Emory University
Alzheimer Disease
Triglyceride Effects on Blood Flow in the Human Brain
The 'Western diet' characterized by high fat feeding (HFF) is a risk factor for Alzheimer's disease (AD); however, little is known about mechanisms.
- Trial name
- NCT05218018
- Testing
- Lipid drink
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Washington
Rectum Cancer
Study of the Preservation of the Left Colic Artery on Rectum Cancer Surgery
To evaluate the influence to the blood supply of the anastomosis and the harvest of the No. 253 lymph nodes in different surgical methods--- preserving the left colic artery (LCA) and resect the No.
- Trial name
- POTLCAORCS (NCT01979029)
- Testing
- preserving the left colic artery, not preserving the left colic artery
- Where
- China
- Volunteers
- 57 people
- Sponsor
- Jian Suo
Coronary Artery Disease
Myocardial Blood Flow by PET and N-13 Ammonia During Regadenoson vs Adenosine Stress
Blockage of the heart arteries (coronary artery disease) can lead to angina (chest pain), heart attacks, heart failure, and/or death.
- Trial name
- NCT01370265
- Testing
- Regadenoson, Adenosine, N-13 ammonia
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Mild Cognitive Impairment
NAD Therapy for Improving Memory and Brain Blood Flow in Older Adults With Mild Cognitive Impairment
This study will provide insight into whether a nutritional supplement, nicotinamide riboside (NR), improves memory and brain blood flow in older adults with low memory abilities.
- Trial name
- NCT03482167
- Testing
- Niagen®
- Where
- United States
- Volunteers
- 64 people
- Sponsor
- University of Delaware
Restless Legs Syndrome, Neuropathic Pain
Spinal Cord Stimulation for Restless Legs Syndrome
The overall goal of this proposed study is to evaluate the underlying mechanisms of neural control of blood flow in the lower extremities in humans with restless leg syndrome (RLS).
- Trial name
- NCT03539081
- Testing
- Dual-energy X-ray absorptiometry Scan, Laboratory Measurements, Blood Flow Measurement
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Marshall Holland