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Effectiveness of a Walking Program Modulating Cardioreparative Factors in Heart Failure (EPCCHFWalk)

2017年3月30日 更新者：Vanderbilt University Medical Center
The incidence of heart failure grows as the population continues to age. Heart failure incidence approaches 10 per 1,000 persons after the age of 65. Although pharmacotherapy improves the treatment of heart failure it remains insufficient in preventing the progression of this debilitating disease. Cell based therapy has gained great strides over the last decade, launching cellular therapy into the mix of artillery for the treatment of chronic heart failure and coronary disease. While early pre-clinical work demonstrates that stem cell based therapy improves heart failure the exact mechanism in which these endothelial progenitor cells (EPC's) are recruited from the bone marrow, proliferate under the mediation of growth factors, and migrate to the injured tissues endogenously still remains obscured. Therefore in order for clinicians and scientist to impact heart failure treatment, a greater understanding of the physiological changes in EPC's and other modulators of cardioreparative process need further investigation.

研究概览

地位

完全的

条件

干预/治疗

详细说明

Heart failure remains a devastating progressive chronic disease in which pharmacotherapy is not often sufficient. Although cell based therapy is gaining publicity in the treatment of coronary artery disease and heart failure. Determining how endothelial progenitor cells are recruited, proliferate, and home to injured tissue is an important area of investigation. Equally important is determining factors which improve EPC stimulation and efficiency such as realistic levels of exercise and the modulation of various cardioreparative factors (VEGF, NRG-1, and SDF-1) within heart failure patients. Since the endogenous repair mechanism is down regulated in heart failure patients such efforts may uncover ways to tip the balance in heart failure back to normal reparative maintenance.

研究类型

观察性的

注册 (实际的)

9

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 美国
    • Tennessee
      • Nashville、Tennessee、美国、37232-8802
        • Vanderbilt Heart and Vascular Institute

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

30年 至 65年 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

概率样本

研究人群

Cardiac Heart Failure Patients

描述

Inclusion criteria:

  1. Subjects 30-65 years old.
  2. Subjects able to give Informed Consent.
  3. Subjects who will give permission for collection of clinical and demographic data from the electronic medical records.

  4. Subjects with symptomatic ischemic or non-ischemic heart failure in a stable condition with New York Heart Association class II-III for at least the last 3 months before study enrollment.

    • Left ventricular ejection fraction (LVEF) < 40%.
    • Peak volume of oxygen utilization (peak VO2) of < 25 ml/kg/min.
  5. Patient on a stable dose of statin or who can be initiated on statin therapy.
  6. Subjects with ischemic cardiomyopathy must have had either a negative stress test within the last 6 months or a cardiac catheterization within the last year confirming stable disease.

Exclusion criteria:

  1. Subjects with myocardial infarction or unstable angina within the last six months.
  2. Subjects with symptomatic or severe aortic stenosis.
  3. Subjects with severe HTN (SBP > 180) or hypotension (SBP < 100).
  4. Subjects who are pregnant.
  5. Subjects who have bone marrow suppression.
  6. Subjects with exercise limiting peripheral arterial disease.
  7. Subjects with history of ventricular tachycardia without an implantable defibrillator
  8. Subjects with decompensated diabetes (HgA1c >10).
  9. Subjects with orthopedic limitations.
  10. Subjects with any other clinical condition precluding regular participation in walking exercise regimen.
  11. Subjects who already participate in regular physical exercise regimen for greater than 30 minutes a day 5 days per week.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

队列和干预

团体/队列
干预/治疗
Walking Exercise Group
Walking Exercise Group versus Control Group
其他：Physical Fitness
Does intensity of aerobic walking exercise modify cardiac reparative factors
其他名称：
  • 生活质量问卷
生物：Walking Exercise Group
Walking Group will increase intensity, duration, and steps of walking per week.
其他名称：
  • 生活质量问卷

研究衡量的是什么？

主要结果指标

结果测量
大体时间
endothelial progenitor cells
大体时间：12 Weeks
12 Weeks

次要结果测量

结果测量
大体时间
exercise
大体时间：12 Months
12 Months

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Vanderbilt University Medical Center

调查人员

  • 研究主任：Douglas B Saywer, MD, PhD、Vanderbilt Heart and Vascular Institute

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2009年7月1日

初级完成 (实际的)

2014年1月1日

研究完成 (实际的)

2014年1月1日

研究注册日期

首次提交

2009年7月9日

首先提交符合 QC 标准的

2009年7月10日

首次发布 (估计)

2009年7月13日

研究记录更新

最后更新发布 (实际的)

2017年4月4日

上次提交的符合 QC 标准的更新

2017年3月30日

最后验证

2017年3月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • Vanderbilt_University

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