Clinical Trial Details
— Status: Recruiting
Administrative data
NCT number |
NCT04848636 |
Other study ID # |
118891 |
Secondary ID |
|
Status |
Recruiting |
Phase |
|
First received |
|
Last updated |
|
Start date |
July 10, 2022 |
Est. completion date |
December 31, 2024 |
Study information
Verified date |
June 2023 |
Source |
Lawson Health Research Institute |
Contact |
Christopher W McIntyre, MD/PhD |
Phone |
5196858500 |
Email |
christopher.mcintyre[@]lhsc.on.ca |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
Chronic kidney disease (CKD) is prevalent worldwide and affects around 10% of people living
in developed health economies. As the kidney loses its function in patients with CKD, the
kidneys are unable to filter toxins out of the blood as efficiently as those of healthy
individuals. Arguably, sodium (salt) is the most relevant toxin in CKD and can build up in
the kidneys of patients with CKD. Salt build-up has also been found to occur in the heart
muscle tissue and could drive the development of scarring of the heart muscle tissue which
contributes to heart failure.
Using sodium magnetic resonance imaging (MRI), we would like to measure the levels of salt in
the heart muscle tissue. We will examine whether the heart muscle tissue has high salt
levels, and if so, whether this relates to any heart defects. A conventional proton MRI will
be done to measure heart function. The MRI images of healthy volunteers, CKD patients, and
those on hemodialysis will be analyzed for levels of salt and the findings will then be
compared to the cardiac biomarkers (proteins or enzymes that are released into the blood when
the heart is damaged or stressed) and fibrosis (scarring) measured from each patient's proton
MRI images to establish a possible correlation. This research has the potential to precede
additional studies that may investigate the effect of diuretics (a drug that increases the
production of urine) on the heart muscle tissue of CKD patients.
Using sodium magnetic resonance imaging (MRI), it is possible to measure the sodium content
in the cardiac tissue of patients with kidney disease. In this research study, it will be
investigated whether the elevated levels of sodium in patients with kidney disease is also
present in their hearts, and if so, whether this relates to cardiac abnormalities. Cardiac
sodium MRI images of healthy volunteers, hemodialysis patients, and CKD patients will be
analyzed for sodium content. This sodium information will then be compared to the biomarkers
of cardiac function and fibrosis measured from each patient's proton MRI images in order to
establish a possible correlation. This research has the potential to precede additional
studies that may investigate the effect of diuretics on the cardiac tissue of kidney disease
patients.
Description:
This study is a pilot exploratory study (preliminary project to assess the use of a heart
sodium coil across a wide spectrum of kidney disease). We will recruit up to 150
participants: approximately 50 hemodialysis patients, 50 patients with various stages of
chronic kidney disease, and 50 age and sex matched healthy participants to compare clinical
characteristics to. This study involves one study visit at the Robarts Research Institute,
London, Ontario lasting approximately 3 hours.
This study entails one visit where all participants will undergo a proton and sodium MRI scan
of the heart. Prior to the scan, all participants will have their sitting blood pressure and
heart rate measured three times consecutively using a standard automatic blood pressure
monitor. In addition to this, all patient participants will have blood work collected,
provide a spot urine sample, complete a salt intake questionnaire, and have their fluid
volume measured using bioimpedance spectroscopy. Only those patients on hemodialysis will
answer a single Time to Recovery Question in addition to the above.