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临床试验/NCT02993809
NCT02993809Unknown1 期

Autologous Transplantation of BM-ECs With Platelet-Rich Plasma Extract for the Treatment of Critical Limb Ischemia

South China Research Center for Stem Cell and Regenerative Medicine0 个研究点目标入组 40 人开始时间: 2018年3月1日最近更新:
适应症

试验速览

阶段
1 期
发起方
入组人数
40
主要终点
Survival without major amputation

研究概览

简要总结

The intent of this clinical study is to evaluate the safety of the injection composed of autologous bone marrow derived endothelial cells (BM-ECs) and platelet-rich plasma extract (PRPE) for the treatment of critical limb ischemia.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 80 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Limb ischemia patients(e.g. arteriosclerosis obliterans,diabetic critical limb ischemia, thromboangitis obliterans)
  • 18 Years to 80 Years (Adult, Senior);
  • Have ability to understand and comply with the study requirements, and provide the written informed consent prior to any procedures ;
  • Patient meets at least one of the following diagnostic criteria for the index limb:
  • ABI<0.7mmHg
  • TcpO2 <40 mm Hg
  • Or, nonhealing ulcer due to local arterial compromise with no opportunity for revascularization;
  • Have no improvement after conservative treatment and are not suitable for surgical bypass surgery because no outflow tract of diseased vessel can be found by imaging;
  • Despite having good outflow artery, but the elderly and frail patients can also not tolerate revascularization or interventional surgery;
  • Unlikelihood of major amputation of the leg during the next 12 months;
  • Expected life span more than 2 years.

排除标准

  • Pregnant or lactating;
  • Diabetics with poorly controlled blood glucose levels (defined as HbA1c>7% and/or proliferative retinopathy);
  • Patients with decompensated cardiac, renal or liver disease;
  • Patients with confirmed malignant tumor;
  • Subjects are with serious heart, liver, kidney and lung failure or under poor general condition that are inability to undergo bone marrow harvesting and transplantation;
  • Known or suspected disease of the immune system or osteomyelitis;
  • Inability to sign informed consent form and to comply with the schedule of the study;
  • There has reason to suspect that the patient is forced to join the study;
  • Any other condition, in the opinion of the investigator, would render the patient unsuitable for the study.

结局指标

主要结局

Survival without major amputation

时间窗: 6 months after implantation

次要结局

  • Perfusion rate in treated tissue by transcutaneous PO2 (TcPO2)(Within 6 months after implantation)
  • wound stage(Within 6 months after implantation)
  • Perfusion rate in treated tissue by measure of ankle-brachial index (ABI)(Within 6 months after implantation)
  • Perfusion rate in treated tissue by digital subtraction angiography (DSA)(Within 6 months after implantation)
  • Pain intensity(Within 6 months after implantation)
  • wound size(Within 6 months after implantation)
  • Thermography(Within 6 months after implantation)

研究者

发起方
South China Research Center for Stem Cell and Regenerative Medicine
申办方类型
Other
责任方
Sponsor

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