The overall study objective is to collect real-world data on the safety and effectiveness of ERC to gradually increase 25D to the level required by Stage 3 and 4 CKD patients. ERC (Rayaldee), a prolonged-release calcifediol (PRC) formulation, is an orally administered prohormone of active Vitamin D (1,25-dihydroxyvitamin D (1,25D)) designed to increase serum total 25D safely and to a high enough magnitude to reliably reduce elevated PTH in patients with non-dialysis chronic kidney disease (ND-CKD). Clinical studies show that ERC is an effective, well tolerated treatment for secondary hyperparathyroidism (SHPT) in ND-CKD patients with Vitamin D insufficiency or deficiency. ERC gradually raises serum 25D levels, resulting in physiologically regulated increases in serum 1,25D and sustained and progressive reductions in PTH levels, while avoiding clinically meaningful increases in serum phosphate and calcium. To date, experience with the use of ERC results exclusively from patients from the US and mainly from patients who have participated in clinical trials. It is therefore of major interest to observe the value of ERC in daily use outside of the controlled trial settings in the US as well as in Europe. (Protocol v.2.0,06Dec2023).
Age range
18 Years
Sex
ALL
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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.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Change in 25-hydroxyvitamin D (25D) and iPTH levels
Timeframe: From up to 6 months prior of ERC treatment start to up to 18 months after treatment
Change in serum calcium level
Timeframe: From up to 6 months prior of ERC treatment start to up to 18 months after treatment
Change in serum phosphate level
Timeframe: From up to 6 months prior of ERC treatment start to up to 18 months after treatment