We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Modified-release calcifediol effectively controls secondary hyperparathyroidism associated with vitamin D insufficiency in chronic kidney disease.
- Authors
Sprague, Stuart M; Silva, Arnold L; Al-Saghir, Fahd; Damle, Radhika; Tabash, Samir P; Petkovich, Martin; Messner, Eric J; White, Jay A; Melnick, Joel Z; Bishop, Charles W
- Abstract
<bold>Background/aims: </bold>Vitamin D insufficiency drives secondary hyperparathyroidism (SHPT) and is associated with increased cardiovascular mortality in patients with chronic kidney disease (CKD). SHPT is poorly addressed by current vitamin D repletion options. The present study evaluated a novel investigational vitamin D repletion therapy: a modified-release (MR) formulation of calcifediol designed to raise serum 25-hydroxyvitamin D in a gradual manner to minimize the induction of CYP24 and, thereby, improve the SHPT control.<bold>Methods: </bold>This randomized, double-blind, placebo-controlled trial evaluated MR calcifediol in CKD subjects (n = 78) with plasma intact parathyroid hormone (iPTH) >70 pg/ml and serum total 25-hydroxyvitamin D <30 ng/ml. Subjects received daily treatment for six weeks with oral MR calcifediol (30, 60 or 90 µg) or a placebo.<bold>Results: </bold>More than 90% of subjects treated with MR calcifediol achieved serum 25-hydroxyvitamin D levels ≥30 ng/ml versus 3% of subjects treated with placebo (p < 0.0001). Mean plasma iPTH decreased from baseline (140.3 pg/ml) by 20.9 ± 6.2% (SE), 32.8 ± 5.7 and 39.3 ± 4.3% in the 30, 60 and 90 µg dose groups, respectively, and increased 17.2 ± 7.8% in the pooled placebo group (p < 0.005). No clinically significant safety concerns arose during MR calcifediol treatment.<bold>Conclusion: </bold>Oral MR calcifediol appears safe and highly effective in treating SHPT associated with vitamin D insufficiency in CKD.
- Publication
American Journal of Nephrology, 2014, Vol 40, Issue 5, p535
- ISSN
0250-8095
- Publication type
journal article
- DOI
10.1159/000369939