The Effect of Calcium and Vitamin D in Patients With Heart Failure (KarViDII)
研究概览
详细说明
Heart failure (HF) is a major course of morbidity and mortality. The prevalence in the Danish population is 1-2% and for age 50 -75 years: 2-3% (1) . It has been estimated that there are currently 6.5 million HF patients in Europe and 5 million in the USA (2) . Lack of vitamin D has been linked to heart disease including ischemic heart disease, heart failure, and hypertension.(3) Vitamin D deficiency is prevalent in the elderly population. Calcium absorption, bone mineralization and muscle function may be impaired. Vitamin D receptors have also been demonstrated in skeletal as well as cardiac muscle(4) . Vitamin D and Parathyroid Hormone (PTH) are closely linked in the calcium metabolic system. In order to maintain serum calcium within range PTH and vitamin D acts together in response to changes in serum-calcium levels. 25(OH)D concentration also being an important factor determining the levels of PTH.(5) Decreasing vitamin D leads to increasing levels of PTH. Hyperparathyroidism in patients with kidney-disease has in numerous studies been linked to cardiovascular disease, left ventricle hypertrophy, and valvular calcification .(6) Aim: Intervention with vitamin D and calcium will improve patients' vitamin D levels and suppress PTH. Thus we hope to find an improved cardiac function and quality of life in the intervention-group.
Comparison: Cardiac function (and other effect parameters - such as self-evaluated health) in the intervention group vs. in the placebo-group
研究类型
注册 (实际的)
阶段
- 第四阶段
联系人和位置
学习地点
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Hvidovre、丹麦、2650
- Hvidovre University Hospital
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Over 18 years of age
- Vitamin D (serum 25-OHD): 50nmol/l or less
- Heart failure (EF 40% or less, NYHA:2 or more)
Exclusion Criteria:
- Calcium metabolic disturbances
- Granulomatous diseases
- Alcohol or drug abuse
- Intake of 400IU (or more) vitamin D/day
- Condition too poor to participate
- Pregnancy
- AF with HF 90 or above
- Mitral insufficiency, degree 3 or above
- Large cardiac aneurisms
- Significant aorta stenosis
- Significant aorta insufficiency
- Allergy to components
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:三倍
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
实验性的:1
Calcium and vitamin D
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Daily vitamin D (cholecalciferol) tablets and rocaltrol
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安慰剂比较:2
Calcium and placebo (cellulose)
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Daily vitamin D (cholecalciferol) tablets and rocaltrol
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
射血分数
大体时间:6个月
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6个月
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
生化指标
大体时间:6个月
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6个月
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6 minutes walk test
大体时间:6 months
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combined skeletal and cardiac muscle function
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6 months
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Quality of life
大体时间:6 months
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Self assessed health (MLHFQ)
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6 months
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合作者和调查者
调查人员
- 研究主任:Jens-Erik B Jensen, MD, PhD、Hvidovre University Hospital
- 首席研究员:Louise Lind Schierbeck, MD、Hvidovre University Hospital
出版物和有用的链接
一般刊物
- Nielsen OW, Raymond IE, Kirk V, Pedersen F, Bay-Nielsen M. [The epidemiology of heart failure from a Danish perspective]. Ugeskr Laeger. 2004 Jan 19;166(4):243-7. No abstract available. Danish.
- Holick MF. The vitamin D epidemic and its health consequences. J Nutr. 2005 Nov;135(11):2739S-48S. doi: 10.1093/jn/135.11.2739S.
- O'Connell TD, Simpson RU. Immunochemical identification of the 1,25-dihydroxyvitamin D3 receptor protein in human heart. Cell Biol Int. 1996 Sep;20(9):621-4. doi: 10.1006/cbir.1996.0081.
- Pepe J, Romagnoli E, Nofroni I, Pacitti MT, De Geronimo S, Letizia C, Tonnarini G, Scarpiello A, D'Erasmo E, Minisola S. Vitamin D status as the major factor determining the circulating levels of parathyroid hormone: a study in normal subjects. Osteoporos Int. 2005 Jul;16(7):805-12. doi: 10.1007/s00198-004-1757-4. Epub 2004 Nov 16.
- Horl WH. The clinical consequences of secondary hyperparathyroidism: focus on clinical outcomes. Nephrol Dial Transplant. 2004 Aug;19 Suppl 5:V2-8. doi: 10.1093/ndt/gfh1049.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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Vitamin D的临床试验
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Daewoong Pharmaceutical Co. LTD.尚未招聘
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