Acute Effects of Beet Juice Consumption on Exercise Capacity in Heart Failure
研究概览
详细说明
Participants will complete up to four study visits. The first visit will involve completion of the informed consent process followed by a screening for study eligibility. The screening will consist of questionnaires pertaining to detailed medical history, diet, physical activity, and health-related quality of life (KCCQ). Anthropometric measures and a general health screening (including heart rate, resting blood pressure, and small blood (<15 mL) and urine samples will be collected). Volunteers meeting eligibility requirements will be scheduled for a screening maximal cardiopulmonary exercise test. Immediately prior to the exercise treadmill test, each subject will have a resting ECG and blood pressure to determine whether there are any abnormalities that would contraindicate exercise testing. Qualified subjects will then undergo a maximal cardiopulmonary exercise (CPX) test.
Following successful completion of the screening CPX test, volunteers meeting eligibility requirements will be scheduled for two testing visits, at least one week apart. At one visit, participants will consume a small cup of beet juice concentrate, and at the other, they will consume placebo. Treatment will be double-blinded and administered in random order.
研究类型
注册 (实际的)
阶段
- 阶段2
- 阶段1
联系人和位置
学习地点
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North Carolina
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Durham、North Carolina、美国、27710
- Duke University Medical Center
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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:
- New York Heart Association (NYHA) class II-III heart failure
- receiving optimal medical therapy
- sedentary
Exclusion Criteria:
- smoking
- changes in medication or major cardiovascular (CV) event or procedure within the previous 6 wk
- fixed rate pacemaker
- unstable angina
- other co-morbidities or limitations that preclude safe participation in the exercise testing
- plans for hospitalization or cardiac transplantation within the next 2 months
- type 1 diabetes
- refusal or inability to provide informed consent
学习计划
研究是如何设计的?
设计细节
- 主要用途:支持治疗
- 分配:随机化
- 介入模型:交叉作业
- 屏蔽:三倍
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
安慰剂比较:placebo
placebo drink, single dose, taste and color-matched to experimental drink
|
其他名称:
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实验性的:beet juice concentrate
single dose of beet juice concentrate, roughly 70 mL
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single dose of beet juice concentrate, roughly 70 mL
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Exercise Tolerance
大体时间:Testing Visit 1 (1-2 weeks from baseline) and Testing Visit 2 (2-3 weeks from baseline)
|
treadmill time to exhaustion, cardiopulmonary exercise test
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Testing Visit 1 (1-2 weeks from baseline) and Testing Visit 2 (2-3 weeks from baseline)
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Vascular Function
大体时间:Testing Visit 1 (1-2 weeks from baseline) and Testing Visit 2 (2-3 weeks from baseline)
|
flow-mediated dilation (FMD)
|
Testing Visit 1 (1-2 weeks from baseline) and Testing Visit 2 (2-3 weeks from baseline)
|
合作者和调查者
调查人员
- 首席研究员:William Kraus, MD、Duke University
出版物和有用的链接
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
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
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Mila (bMotion Technologies)完全的
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Universidad Autonoma de MadridCentro Universitario La Salle完全的