Study to Investigate the Effects of Vitamin D Administration on Plasma Renin Activity in Patients With Stable Chronic Heart Failure

Summary

The renin-angiotensin system (RAS) is a regulatory system that plays an essential role in patients with chronic heart failure (CHF). Plasma renin activity (PRA) is a strong and independent predictor of outcome, also in the presence of ACE inhibitors (ACE-i) and/or angiotensin receptor blockers (ARBs). Recently, it has been shown that vitamin D regulates renin transcription by activating the vitamin D receptor (VDR). Thus, specific activation of the VDR represents a novel target for therapeutic intervention in CHF. Currently, clinical data are lacking. The investigators aim to investigate the effect of the administration of vitamin D in patients with CHF.

Timeline

Start

2010-03

Primary completion

2012-03

Completion

2012-09

Publications

• Schroten NF, Ruifrok WP, Kleijn L, Dokter MM, Sillje HH, Lambers Heerspink HJ, Bakker SJ, Kema IP, van Gilst WH, van Veldhuisen DJ, Hillege HL, de Boer RA. Short-term vitamin D3 supplementation lowers plasma renin activity in patients with stable chronic heart failure: an open-label, blinded end point, randomized prospective trial (VitD-CHF trial). Am Heart J. 2013 Aug;166(2):357-364.e2. doi: 10.1016/j.ahj.2013.05.009. Epub 2013 Jun 24.

Drugs

Indications