Vitamin K to Slow Progression of Cardiovascular Disease Risk in Hemodialysis Patients (NCT03311321) | Clinical Trial Compass
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Vitamin K to Slow Progression of Cardiovascular Disease Risk in Hemodialysis Patients
United States60 participantsStarted 2017-09-13
Plain-language summary
The life span of adults with end-stage renal disease is reduced, and cardiovascular disease (CVD) accounts for approximately half the deaths among those undergoing hemodialysis (HD). Vascular calcification is a key process in the development of atherosclerotic and arteriosclerotic CVD, and contributes significantly to the greater mortality rates and CVD events in HD patients. Recently, there has been growing interest in the vitamin K-dependent matrix Gla protein (MGP) and its role in inhibiting vascular calcification. Animal studies have revealed that the vitamin K-dependent protein MGP may reduce the progression of vascular calcification, possibly by means of improving vascular function. The relationship between MGP and vitamin K lies in the fact that inactive matrix Gla protein requires vitamin K to carboxylate it for its activation. Currently, data in HD patients are scant and equivocal on the effects of vitamin K supplementation on CVD risk outcomes. Therefore, the purpose of this 8-week randomized, placebo-controlled, double-blind clinical trial is to determine whether daily vitamin K supplementation can favorably alter measurements of endothelial function and arterial stiffness in HD patients.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Chronic Kidney Disease Stages 3 to 5
* Receiving hemodialysis treatment for at least 3 months
* Subject understands the study protocol and agrees to comply with it
* Informed consent documents signed by subject
Exclusion Criteria:
* Using vitamin supplements containing vitamin K
* History of metabolic gastrointestinal diseases
* Subjects presenting chronic degenerative and/or inflammatory diseases
* Receiving systemic treatment or topical treatment likely to interfere with evaluation of the study parameters (salicylates, antibiotics)
* Subjects receiving corticosteroid
* Use of anticoagulants
* History of soy allergy
* Have an unstable medical condition, such as having a life expectancy of less than 6 months in the judgment of the investigator
* Known sensitivity, intolerance, or other adverse response to study drugs which would prevent compliance with study medication
* Subjects who have participated in a clinical study more recently than one month before the current study
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.