Clinical trials: Renal Blood Flow
Kidney Diseases
The Effects of Glucagon on Renal Regional Blood Flow in Humans Measured by Magnetic Resonance.
This study will investigating the effects of glucagon on renal blood flow in humans using MRI technology. Glucagon, a hormone produced by the pancreas, plays a key role in regulating blood sugar levels.
- Trial name
- NCT06872060
- Testing
- Glucagon, Glucagon+Exendin9-39, Sodium chloride
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Bispebjerg Hospital
Hypertension
The Effect of Hypertension Medications on Renal Blood Flow Measurements in Healthy Males (MK-0000-127)
This study will evaluate the effect of Aliskiren and Losartan on renal blood flow using PAH clearance, PC MRA and ASL MRI methodologies.
- Trial name
- NCT00856960
- Testing
- Aliskiren, Comparator: Losartan
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Merck Sharp & Dohme LLC
Healthy, Physiology
Assessment of the Changes in Cortical and Medullary Renal Blood Flow During Exercise in Healthy Subjects Using Contrast Enhanced Ultrasound
Renal parenchymal blood flow can be divided in cortical and medullary blood flow. Changes and factors affecting renal medullary blood flow have not been studied in detail previously as investigators/doctors did not have tools to…
- Trial name
- NCT02672722
- Testing
- Definity, Exercise, Kidney Ultrasound
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Healthy, Type 2 Diabetes
Study of Renal Blood Flow During Human Endotoxemia
The purpose of the present protocol is to study whether endotoxemia will affect the renal blood flow in type 2 diabetics and healthy volunteers.
- Conditions
- Healthy, Type 2 Diabetes, Endotoxemia
- Trial name
- NCT00413465
- Testing
- Escherichia Coli Endotoxin
- Where
- Denmark
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Hypertension, Renal Failure
The Efficacy of Color-Doppler Ultrasonography to Assess the Renal Blood Flow With the Estimation of GFR
It is generally assumed that renal blood flow is symmetric in the absence of renal artery stenosis. The importance of studying the function of both kidneys separately is because it cannot be assumed that they are functionally…
- Trial name
- NCT00470769
- Testing
- Color-Doppler Ultrasound, 99mTc-DTPA scintigraphy
- Where
- 3 sites in Italy
- Volunteers
- 2,006 people, healthy volunteers welcome
- Sponsor
- University of Roma La Sapienza
Cardiovascular Disease
Evaluation of Patients With Heart Disease Not Eligible for Research Protocols
An important mission of the National Institutes of Health (NIH) is to develop and carry out research studies designed to improve understanding of disease processes and treatments.
- Trial name
- NCT00001458
- Where
- United States
- Volunteers
- 7,829 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Ketosis, Ketonemia
Effects of Exogenous Ketosis on Renal Function, Renal Perfusion, and Sodium Excretory Capacity in Healthy Subjects
This is a randomized, placebo-controlled, double-blinded crossover design. Fifteen healthy subjects will be randomized to receive either ketone bodies (KE4) or placebo delivered by KetoneAid.
- Trial name
- KETO (NCT05980858)
- Testing
- Beta-hydroxybutyrate
- Where
- Denmark
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Gødstrup Hospital
Cardiovascular Diseases, Nephropathy
Effect of the Aquaretic Tolvaptan on Nitric Oxide System (TORA)
The purpose of this study is to investigate the effect of tolvaptan on renal water, sodium and potassium excretion, plasma concentration of vasoactive hormones,central blood pressure, pulse wave velocity (PWV) and augmentation…
- Trial name
- NCT01638663
- Testing
- Tolvaptan
- Where
- Denmark
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Regional Hospital Holstebro
Healthy Volunteers
Mapping of Cardiac Power in Healthy Humans and Testing of a New Blood Pressure Sensor
Brief Summary: The study will record hemodynamic data from 20 healthy volunteers at rest and during moderate bicycle exercise in the recumbent and half sitting position for the following purposes: Sub-study 1 Testing the overall…
- Trial name
- NCT05008133
- Testing
- Bicycle exercise
- Where
- Norway
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology
The GLP-1-mediated Gut-kidney Axis
Acute Effects of GLP-1 on Renal Hemodynamics
This study investigates the hypothesis, that GLP-1's suppression of ANG II and natriuretic action increase medullary perfusion and decrease oxygen consumption, leading to higher tissue oxygenation.
- Trial name
- GLP1RRBF (NCT04337268)
- Testing
- Glucagon-Like Peptide 1, saline 0.9%
- Where
- Denmark
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Coffee, Pregnancy
Coffee Consumption and Pregnancy
Coffee, tea, and cocoa contain caffeine, a plant alkaloid. They are frequently consumed during pregnancy. We examined the effect of coffee consumption on fetal renal artery blood flow and amniotic fluid index (AFI) in the third…
- Trial name
- NCT03798275
- Testing
- coffee
- Where
- Turkey (Türkiye)
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Kayseri Education and Research Hospital
Nephropathy
Effect of the Aquaretic Tolvaptan on Nitric Oxide System. A Dose-response Study (DOVA)
Tolvaptan is a selective vasopressin receptor antagonist (V2R) that increases free water and sodium excretion. Inhibition of V2R increases vasopressin concentration in plasma, which stimulates V1-receptors in the vascular bed and…
- Trial name
- DOVA (NCT02078973)
- Testing
- 15 mg tolvaptan, 30 mg tolvaptan, 45 mg tolvaptan
- Where
- Denmark
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Regional Hospital Holstebro
Healthy
Kidney Blood Flow During Exercise in Older African American Adults
The goal of this preliminary study is to learn if healthy older African American (AA) adults have a larger change in their kidney blood flow during exercise compared to White (W) adults.
- Trial name
- NCT07029165
- Testing
- Acute exercise, Cold pressor test, Mental stress test
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Massachusetts, Boston