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Table of Contents
Vol. 30, No. 3, 2009
Issue release date: September 2009
Section title: Original Report: Patient-Oriented, Translational Research
Am J Nephrol 2009;30:280–286
(DOI:10.1159/000225903)

The Selective Vitamin D Receptor Activator for Albuminuria Lowering (VITAL) Study: Study Design and Baseline Characteristics

Lambers Heerspink H.J.a · Agarwal R.b · Coyne D.W.c · Parving H.-H.d · Ritz E.e · Remuzzi G.f · Audhya P.g · Amdahl M.J.g · Andress D.L.g · de Zeeuw D.a
aDepartment of Clinical Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; bDivision of Nephrology, Indiana University School of Medicine, Indianapolis, Ind., and cDivision of Renal Diseases, Washington University School of Medicine, St. Louis, Mo., USA; dDepartment of Medical Endocrinology, University Hospital of Copenhagen, Copenhagen, Denmark; eDepartment of Internal Medicine, Division Nephrology, Heidelberg, Germany; fMario Negri Institute for Pharmacological Research, Bergamo, Italy; gAbbott Laboratories, Chicago, Ill., USA

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Article / Publication Details

First-Page Preview
Abstract of Original Report: Patient-Oriented, Translational Research

Received: April 27, 2009
Accepted: May 13, 2009
Published online: June 15, 2009
Issue release date: September 2009

Number of Print Pages: 7
Number of Figures: 1
Number of Tables: 3

ISSN: 0250-8095 (Print)
eISSN: 1421-9670 (Online)

For additional information: http://www.karger.com/AJN

Abstract

Background: Patients with diabetic nephropathy are at high risk for further progressive renal function loss. Treatments that decrease albuminuria have been linked with renal and cardiovascular protection. However, even when taking optimal treatment, residual renal and cardiovascular risk remains high which correlates with the magnitude of residual albuminuria. Use of vitamin D receptor activators, such as calcitriol and paricalcitol, is associated with improved sur- vival. A small study with paricalcitol showed reductions in albuminuria. The VITAL study tests the hypothesis whether paricalcitol persistently reduces albuminuria in diabetic subjects already receiving angiotensin-converting enzyme inhibitor (ACEI) and/or angiotensin receptor blocker (ARB) therapy. Methods: Randomization in this double-blind trial is equal allocation to paricalcitol 1 μ/day, 2 μg/day, or placebo. Inclusion criteria include: a diagnosis of type 2 diabetes, urinary albumin/creatinine ratio (UACR) between 100–3,000 mg/g, estimated glomerular filtration rate (eGFR) between 15–90 ml/min/1.73 m2, serum calcium <9.8 mg/dl, and parathyroid hormone (PTH) between 35–500 pg/ml. Results: Baseline characteristics of the 281 subjects are: 69% men, mean age 64.9 ± 10.4 years, eGFR 40.7 ± 16.7 ml/min, median UACR (interquartile range) 612.3 mg/g (281–1,181 mg/g) and PTH 98.4 ± 63.8 pg/ml. Conclusion: This trial will be the first clinical test of the hypothesis that paricalcitol possesses pleiotropic effects and can modulate albuminuria in the setting of ACEI and/or ARB therapy. Results will have important clinical implications and are expected in November 2009.

© 2009 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Report: Patient-Oriented, Translational Research

Received: April 27, 2009
Accepted: May 13, 2009
Published online: June 15, 2009
Issue release date: September 2009

Number of Print Pages: 7
Number of Figures: 1
Number of Tables: 3

ISSN: 0250-8095 (Print)
eISSN: 1421-9670 (Online)

For additional information: http://www.karger.com/AJN


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