Calcium-Phosphorus Regulation Therapy on Heart Valve Disease
China196 participantsStarted 2024-03-01
Plain-language summary
The goal of this clinical trial is to learn if calcium-phosphorus regulation therapy can slow the progression of heart valve calcification in patients with degenerative heart valve disease and chronic kidney disease (CKD). The main questions it aims to answer are:
* Does Sevelamer lower the progression of heart valve calcification compared to calcium carbonate over 12 months?
* What are the impacts of calcium-phosphorus regulation therapy on major cardiovascular events such as heart failure, cardiovascular death, and the need for valve surgery? Researchers will compare Sevelamer to calcium carbonate to see if Sevelamer is more effective in reducing heart valve calcification.
Participants will:
* Take Sevelamer or calcium carbonate daily for 12 months.
* Undergo echocardiography and CT scans at baseline and after 12 months to assess heart valve calcification.
* Attend follow-up visits at 3, 6, 9, and 12 months to monitor blood tests and adjust treatment as needed.
Who can participate
Age range
50 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:
* Age ≥ 50 years old.
* Degenerative valvular heart disease clearly diagnosed by ultrasound or clinical history with calcification manifestation (including no stenosis or insufficiency due to calcification, mild, moderate and severe stenosis and insufficiency caused by calcification).
* Glomerular filtration rate \< 60 mL/min (CKD-EPI formula).
* Serum phosphorus \> 1.45 mmol/L (4.5 mg/dl).
Exclusion Criteria:
* Patients refuse to sign the informed consent form for the study.
* Non-degenerative valvular heart disease even if there is valvular calcification, such as rheumatic valvular heart disease, congenital valvular heart disease, etc.
* Valve lesions are evaluated by cardiac surgeons and have indications for surgical thoracotomy or interventional medical treatment and there are no surgical contraindications.
* Life expectancy less than 1 year. ⑤ Abnormal parathyroid function.
* Those with renal insufficiency who are planned to undergo dialysis treatment within half a year.
* Malignant tumor.
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.
What they're measuring
1
The change of valve calcification score on CT scan from baseline to 1 year of treatment.
Timeframe: from baseline to 1 year of treatment
Trial details
NCT IDNCT06660524
SponsorChina National Center for Cardiovascular Diseases