Effects of Cardioprotective Therapy, Carvedilol vs Ramipril, in Patients Affected by Duchenne and Becker Muscular Dystrophy. Clinical Significance and Prognostic Value of Cardiac Magnetic Resonance Study.
试验速览
- 阶段
- 4 期
- 发起方
- 入组人数
- 194
- 试验地点
- 1
- 主要终点
- Left ventricular Ejection Fraction, systolic and diastolic left ventricular volumes and LGE (as a quantitative measure) detected by MRI and myocardial Ultrasound Tissue Characterisation data by Echocardiography.
研究概览
简要总结
Data on preventive therapy in Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) affected individuals without cardiac involvement are very limited and currently lacking regard both ACE-inhibitors and Beta-Blockers in Becker Muscular Dystrophy and for the latter even in Duchenne Muscular Dystrophy patients. Thus, the study aim is to compare the efficacy of carvedilol vs ramipril on myocardial tissue properties and heart function, performing CMR and myocardial Ultrasound Tissue Characterisation analysis.
详细描述
This protocol represent an open randomized and prospective trial, designed to answer the specific question regarding the role of the cardioprotective therapy in Duchenne Muscular Dystrophy and Becker Muscular Dystrophy patients. In this light, CMR could provide relevant data, reinforcing the scientific background, to start early (particularly in BMD patients in whom this is still a debated question) a cardioprotective treatment with carvedilol or ramipril.Finally,this clinical trial will clarify whether a preventive therapy may be helpful on the clinical outcome, both in reducing myocardial fibrosis and preventing the progression towards the cardiomyopathy.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 2 Years 至 45 Years（Child, Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Immunohystochemical and molecular diagnosis of Duchenne and Becker muscular dystrophy.
- •Not evidence of clinical cardiomyopathy,normal 2D-echocardiography with normal systolic,WMSI = 1) and diastolic function.
- •DMD patients treated with steroid therapy.
- •All DMD and BMD patients are not treated with cardiological therapy (ACE-inhibitors, ARBs or Beta-Blockers).
- •Written informed consent to study participation (with serial visit, CMR and echocardiographic study) is required from all patients themselves, as well as their parent or guardian and healthy-control subjects.
排除标准
- •Failure to obtain informed consent from patients, parents or guardians.
- •Any controindications to carvedilol or ramipril treatment (bronchial asthma, diabetes, any degree of renal failure (all patients are required to have a normal creatinine level and clearance).
- •in BMD patients ECG changes suggestive of ischemic heart disease, left bundle-branch block, atrial flutter/fibrillation, ventricular arrhythmias, any degree of atrioventricular block and left ventricular (LV) hypertrophy. Aspecific ST changes will be not considered as electrocardiographic exclusion criteria both in DMD and BMD patients.
- •In BMD patients exclusion criteria will be also hypertension and valvular heart disease other than trivial.
- •DMD and BMD patients requiring ventilatory (non-invasive or invasive) assistance.
- •Presence of systolic and/or diastolic dysfunction detected by 2D-Echocardiography.
- •Presence of any contraindications to CMR (including any history of claustrophobia).
- •Patients under the age of 2 years.
- •Renal failure, even mild.
- •Patient unable or unwilling to attend the follow-up and tests, in the opinion of local study principal investigator, (children not willing to perform CMR will not be enrolled).
研究组 & 干预措施
Ramipril
干预措施: ramipril (Drug)
Carvedilol
干预措施: carvedilol (Drug)
结局指标
主要结局
Left ventricular Ejection Fraction, systolic and diastolic left ventricular volumes and LGE (as a quantitative measure) detected by MRI and myocardial Ultrasound Tissue Characterisation data by Echocardiography.
时间窗: 1 year
次要结局
- Prevalence of LGE in DMD and BMD patients,the effects of pharmacological therapy both on LGE evolution and myocardial UTC analysis.(1 year)