Exercise Preconditioning and Breast Cancer Cardiotoxicity (EXACCT)
Aerobic Interval Exercise Preconditioning to Prevent Cardiometabolic and Neuropsychological Complications of Anthracycline Based Breast Cancer Chemotherapy
研究概览
详细说明
The primary aim of this study is to determine the efficacy of a novel, high-intensity aerobic interval exercise preconditioning protocol to ameliorate anthracycline-mediated cardiac and skeletal muscle toxicity in women with breast cancer undergoing de novo chemotherapy.
Research Design:
Women with breast cancer scheduled to undergo de novo chemotherapy with anthracyclines will be enrolled. Qualified patients will be randomized to either 1) a high-intensity interval exercise group, or 2) an attention-control group.
Supervised exercise training will be carried out at the Mayo Clinic Cardiac rehabilitation center in Arizona on cycle ergometers using Electrocardiogram (EKG) telemetry. Patients in the high-intensity interval exercise group will perform four, 4-min intervals at 85-90% peak heart rate (PHR), separated by 3 min at 50% PHR. Each training session will begin with a 10-minute warm-up at 50% of PHR and end with a 5-min cool down at 50% PHR.
The attention-controls will receive counseling consistent with standard of care regarding physical activity during chemotherapy. Attention-control group will receive a weekly phone call to maintain physical activity during chemotherapy and compliance will be verified using physical activity diaries and pedometers.
Treatment for each group will commence 1-week prior to chemotherapy induction. The first dose of chemotherapy will be given within 16-18 hours of the last bout of exercise. High-intensity intermittent exercise (HIIE) training will be continued throughout four, 2-week cycles of chemotherapy (total training time = 9 weeks, 3 days/week).
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Arizona
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Scottsdale、Arizona、美国、85259
- Mayo Clinic in Arizona
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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:
- Subjects must be able to communicate meaningfully with the investigator and must be legally competent to provide written informed consent
- Subjects will have been recently diagnosed with breast cancer (stage I, II or III)
- Subjects must be scheduled by their oncologist to undergo anthracycline based chemotherapy (doxorubicin and cyclophosphamide) in the neoadjuvant/adjuvant setting
Exclusion Criteria:
- Unstable angina
- Myocardial infarction in the past 4 weeks
- Uncompensated heart failure
- New York Heart Association class IV symptoms
- Complex ventricular arrhythmias
- Medical orthopedic conditions precluding stationary cycling
- Medical conditions precluding neuropsychological assessment
- Symptomatic severe aortic stenosis
- Acute pulmonary embolus
- Acute myocarditis
- Untreated high-risk proliferative retinopathy
- Recent retinal hemorrhage
- Uncontrolled hypertension
- Sodium and/or Potassium ≥ Grade 2
- Pregnant Women
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:并行分配
- 屏蔽:单身的
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
有源比较器:A high-intensity interval exercise group
Supervised exercise training with be carried out at the Mayo Clinic Cardiac rehabilitation center on cycle ergometers using EKG telemetry.
Treatment will begin one week prior to chemotherapy and is tailored around 8 weeks.
|
To avoid or reduce muscle soreness or cramps, adequate warm-up is suggested
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其他:An attention-control group
Patients will receive counseling regarding physical activity during chemotherapy.
Patients will receive a weekly phone call to maintain physical activity during chemotherapy and compliance will be verified using physical activity diaries and pedometers.
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Patients will be contacted weekly to access physical activity.
To avoid or reduce muscle soreness or cramps, adequate warm-up is suggested
|
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 |
---|---|---|
Change in left ventricular ejection fraction
大体时间:baseline, approximately 2 months
|
Echocardiography will be used to assess biventricular systolic function.
|
baseline, approximately 2 months
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Change in diastolic function
大体时间:baseline, approximately 2 months
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Echocardiography will be used to assess biventricular diastolic function.
|
baseline, approximately 2 months
|
合作者和调查者
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 (实际的)
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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