Intramuscular Mononuclear Cells and Mesenchymal Stem Cells Transplantation to Treat Chronic Critical Limb Ischemia
Phase II Efficacy Study of Intramuscular Autologous Bone Marrow Mononuclear Cells Plus Mesenchymal Stem Cell Implantation Versus Autologous Bone Marrow Mononuclear Cells Implantation Only in Patients With Chronic Critical Limb Ischemia
研究概览
详细说明
When the long blood vessels supplying blood to the arms and legs become blocked (ischemic), patient will experience painful sensations in their calves when they walked which slowly become excruciating painful at rest. When the condition worsens, the patients will not be able to feel any pain from their legs and they will not know if there are any small ulcers or cuts on their legs. As a result, a small ulcer which goes unnoticed becomes bigger and can sometimes become infected. In the worst situations, infection might lead towards gangrene and septicaemia. Severe rest pain and/or ulcerations of ischemic limbs are defined as the state of chronic critical limb ischemia and at this point, amputation of the affected limb is suggested.
Conventional treatments include angioplasty/bypass operation to remove blood vessel blockage to restore blood supply, the use of prescribed medicines to aid in ulcer recovery and clear infection and debridement of damaged/infected tissue. Some procedures have to be performed multiple times. Amputation is inevitable in many cases because some blood capillaries cannot be corrected and restenosis of vessels is very common. Cell therapy with mononuclear cells and mesenchymal stem cells from bone marrow is promising because these stem cells are capable of stimulating and regenerating capillaries and blood vessels.
研究类型
注册 (预期的)
阶段
- 阶段2
联系人和位置
学习地点
-
-
-
Kuala Lumpur、马来西亚、56000
- 招聘中
- UKM Medical Centre
-
接触：
- Hanafiah Harunarashid, MD
-
首席研究员：
- Hanafiah Harunarashid, MD
-
副研究员：
- Mohammad Azim Mohammad Idris, MD
-
-
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:
- Clinical diagnosis of critical limb ischemia leading to ischemic ulcers in which amputation is indicated
- Not suitable for, or remain symptomatic despite angioplasty, bypass operation or collateralization
Exclusion Criteria:
- Contraindication to epidural anesthesia and bone marrow aspiration
- Contraindication to contrast angiography
- Evidence of neoplasia and bone marrow diseases
- Any acute or chronic communicable diseases including Hepatitis B, Hepatitis C and HIV
- Patients with a limited life expectancy (< 1 year)
- Patients with myocardial infarction or stroke within 6 months
- Patients with coronary intervention within 6 months
- Renal impairment indicated by serum creatinine greater than two times upper limit of the normal range
- Liver impairment indicated by serum aspartate transaminase and alanine transaminase greater than two times upper limit of normal
- Any other co-morbidity which the physician deems as a contraindication to stem cell transplantation
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：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Mononuclear and mesenchymal stem cells
Autologous bone marrow-derived mononuclear cells and mesenchymal stem cells
|
Intramuscular administration into the ischemic limb
其他名称：
|
|
有源比较器：Mononuclear cells only
Autologous bone marrow-derived mononuclear cells
|
Intramuscular administration into the ischemic limb
其他名称：
|
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 angiogenesis
大体时间：1 month, 3 months, 6 months, 9 months, 12 months
|
Measurement of angiogenesis by presence of peripheral pulses, capillary refill and transcutaneous oxygen saturation (TCOS).
|
1 month, 3 months, 6 months, 9 months, 12 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
视觉模拟评分
大体时间：1个月、3个月、6个月、9个月、12个月
|
1个月、3个月、6个月、9个月、12个月
|
|
|
Change in ulcer size
大体时间：1 month, 3 months, 6 months, 9 months, 12 months
|
Measurement of ulcer size by clinical assessment and grid maps.
|
1 month, 3 months, 6 months, 9 months, 12 months
|
|
Exercise Treadmill Test
大体时间：1 month, 3 months, 6 months, 9 months, 12 months
|
1 month, 3 months, 6 months, 9 months, 12 months
|
|
|
Improvement in vascularity and blood supply
大体时间：1 month, 3 months, 6 months, 9 months and 12 months
|
Measured by digital subtraction angiography (DSA) and ankle brachial systemic pressure index (ABI).
|
1 month, 3 months, 6 months, 9 months and 12 months
|
合作者和调查者
调查人员
- 首席研究员：Hanafiah Harunarashid, MD、UKM Medical Centre
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
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.